Cadillac · 1960-1982
DeVille / Calais
deville · de ville · coupe deville · coupe de ville · sedan deville · sedan de ville · deville convertible · calais
633 option rows 619 RPO codes 23 model years
17% Factory-verified
- ✓ Factory-verified · 108
- ● Confirmed · 460
- ◑ Single-source · 51
- ⚠ Disputed · 14
Applicable options
Documented RPO codes
Model year
| Code | Option | Years | Notes & factory source | Confidence |
|---|---|---|---|---|
| C | Cruise Control | 1960 | All GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| D | Door guards | 1960 | All; kit "Dor-Gards" GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| E | E-Z Eye tinted glass | 1960 | All GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| F | Fog lamps | 1960 | All GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| G / G1–G6 | Rubber floor mats (1 White, 2 Black, 3 Blue, 4 Gray, 5 Tan, 6 Green) | 1960 | All; kit shows color suffix on code G GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| H | Heater | 1960 | All GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| J | Rear radio control | 1960 | Series 75 only GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| K | Air conditioner | 1960 | All GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| L1 / L2 | License plate frame — one / two | 1960 | All GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| FP | Front license filler plate | 1960 | All GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| M | Power door locks | 1960 | All GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| N | Power vent window regulators | 1960 | Std Eldorado & Fleetwood 60S GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| P | Optional rear axle ratio (3.36/3.77:1) | 1960 | Non-A/C cars only; kit "Optional Gear Ratio" GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| Q | Eldorado triple-carburetor engine (tri-power) | 1960 | Eldorado; kit "Eldorado Engine"; see eldorado.md GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| R | Signal-seeking radio w/ preselector & power antenna | 1960 | All GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| S | Remote-control deck lid | 1960 | Std Eldorado; kit "Remote Control Trunk Lock" GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| T | Air suspension | 1960 | All (last year) GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| U | Guide-Matic headlamp control | 1960 | All; kit "Power Headlamp Control" GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| W | Whitewall tires | 1960 | All GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| X | Electric (power) window regulators | 1960 | All (styles G, K, A) GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| Y | 6-way power seat (2-way on buckets) | 1960 | All GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| Z / Z1 | Anti-freeze −20° / −40° (permanent ethylene glycol) | 1960 | All GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| 1 / 2 | White / black (Ebony) center on standard wheel discs | 1960 | All; kit = numeric color suffix on wheel-disc code GM Heritage factory kit — 1960 Cadillac VVI, p.194. | Factory-verified |
| C | Cruise Control | 1961–62 | All GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| D | Door guards | 1961–62 | All; kit "Dor-Gards" GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| E | E-Z Eye glass (1961) / Soft Ray glass (1962) | 1961–62 | Name change only GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| F | Fog lamps | 1961–62 | All GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| G | Controlled differential | 1961–62 | New for 1961 GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| H | Heater | 1961 | On 1961 kit; dropped from 1962 list GM Heritage factory kit — 1961 Cadillac VVI, p.129. | Factory-verified |
| J | Rear radio control | 1961–62 | Series 75 only GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| K | Air conditioner | 1961–62 | All GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| L1 / L2 | License plate frame — one / two | 1961–62 | All GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| FP | Front license filler plate | 1961–62 | All GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| M | Power door locks | 1961–62 | All GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| N | Power vent window regulators | 1961–62 | Std Eldorado & Fleetwood 60S GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| P | Optional 3.21 rear axle (non-A/C cars) | 1961–62 | All; kit "Optional Gear Ratio" GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| R | Signal-seeking radio w/ preselector & power antenna | 1961–62 | All GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| S | Remote-control deck lid release | 1961–62 | All; kit "Remote Control Trunk Lock" GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| U | Guide-Matic power headlamp control | 1961–62 | All GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| V | Positive crankcase ventilation | 1961–62 | California engines GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| W | Whitewall tires (narrow-band from 1962) | 1961–62 | All GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| X | Electric window regulators | 1961–62 | All (styles G, K, A) GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| Y | 6-way power seat (2-way on buckets) | 1961–62 | All GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| Z / Z1 | Anti-freeze −20° / −40° | 1961–62 | All; kit prints Z1 (permanent ethylene glycol) GM Heritage factory kit — 1961 Cadillac VVI, p.129. GM Heritage factory kit — 1962 Cadillac VVI, p.150. | Factory-verified |
| C | Cruise Control | 1963 | All | Confirmed |
| D | Door guards | 1963 | All | Confirmed |
| E | Soft Ray tinted glass | 1963 | All | Confirmed |
| F | AM/FM radio | 1963 | New — first AM/FM | Confirmed |
| G | Controlled differential | 1963 | All | Confirmed |
| J | Rear radio control | 1963 | Series 75 only | Confirmed |
| K | Air conditioner | 1963 | All | Confirmed |
| L8 / L9 | License plate frame — one / two | 1963 | All; kit chart prints L8/L9 GM Heritage factory kit — 1963 Cadillac VVI, p.161. | Factory-verified |
| FP | Front license filler plate | 1963 | All | Confirmed |
| M | Power door locks | 1963 | All | Confirmed |
| N | Power vent window regulators | 1963 | Std Eldorado & Fleetwood 60S | Confirmed |
| P | Optional rear axle ratio (non-A/C cars) | 1963 | All | Confirmed |
| Q | Tilt steering wheel | 1963 | New | Confirmed |
| R | AM radio, signal-seeking | 1963 | All | Confirmed |
| S | Remote-control deck lid release | 1963 | All | Confirmed |
| T | 4-way power bucket seat (driver) | 1963 | Bucket-seat cars | Confirmed |
| U | Guide-Matic headlamp control | 1963 | All | Confirmed |
| V / V1 / V2 | Seat belts front & rear / front / rear | 1963 | All | Confirmed |
| W | Whitewall tires | 1963 | All | Confirmed |
| X | Electric window regulators | 1963 | All | Confirmed |
| Y | 6-way power seat | 1963 | All | Confirmed |
| A | Seat belts — 2 rear | 1964 | All; kit "A-2 Rear" GM Heritage factory kit — 1964 Cadillac VVI, p.63. | Factory-verified |
| B | Rear window defogger | 1964 | New; exc. 75 & convertible GM Heritage factory kit — 1964 Cadillac VVI, p.63. | Factory-verified |
| C | Cruise Control | 1964 | All | Confirmed |
| D | Door guards | 1964 | All | Confirmed |
| E | Soft Ray glass | 1964 | All | Confirmed |
| F | Front license filler plate | 1964 | Factory kit resolves: 1964 code is F ("OTHER CODES: F-Filler Plate"), not FP as the 63/64 decode lists GM Heritage factory kit — 1964 Cadillac VVI, p.63. | Factory-verified |
| G | Controlled differential | 1964 | All | Confirmed |
| H | Heater delete | 1964 | Credit option | Single-source |
| J | Twilight Sentinel | 1964 | New | Confirmed |
| K | Comfort Control air conditioner | 1964 | First automatic climate control | Confirmed |
| M | Power door locks | 1964 | All | Confirmed |
| N | Power vent window regulators | 1964 | Std Eldorado & Fleetwood 60S | Confirmed |
| P | Optional 3.21 rear axle (non-A/C) | 1964 | All | Confirmed |
| Q | Tilt steering wheel | 1964 | All | Confirmed |
| R | AM radio, signal-seeking | 1964 | All | Confirmed |
| R1 | AM/FM radio | 1964 | All; kit "AM-FM Radio-Code R1" GM Heritage factory kit — 1964 Cadillac VVI, p.63. | Factory-verified |
| R2 | Rear radio control | 1964 | Series 75 only | Confirmed |
| S | Remote-control deck lid release | 1964 | All | Confirmed |
| T | 4-way power bucket seat (driver) | 1964 | Bucket-seat cars | Confirmed |
| U | Guide-Matic headlamp control | 1964 | All | Confirmed |
| V / VA | Seat belts — 2 front / front & rear | 1964 | All | Confirmed |
| W | Whitewall tires | 1964 | All | Confirmed |
| X | Electric window regulators | 1964 | All | Confirmed |
| Y | 6-way power seat | 1964 | All | Confirmed |
| 8 / 9 | License plate frame(s) — one / two | 1964 | All; kit "8-One License Frame / 9-Two License Frames" GM Heritage factory kit — 1964 Cadillac VVI, p.63. | Factory-verified |
| A | Seat belts — 2 rear | 1965 | All GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| "B" (trim suffix) | Bucket seats (suffix on trim code) | 1965 | DeVille/Eldorado | Single-source |
| C | Cruise Control | 1965 | All (factory chart lists the option but OCR dropped its code letter) | Single-source |
| D | Door guards | 1965 | All GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| E | Soft Ray glass | 1965 | All GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| F | Front license filler plate | 1965 | All GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| G | Controlled differential | 1965 | All GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| H | Heater delete | 1965 | Credit option GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| J | Twilight Sentinel | 1965 | All GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| K | Comfort Control air conditioner | 1965 | Std Series 75 GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| M | Power door locks | 1965 | All GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| N | Power vent window regulators | 1965 | Std Eldorado & Fleetwood 60S GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| O | Delete 2 front seat belts | 1965 | Credit GM Heritage factory kit — 1965 Cadillac VVI, p.158. | Factory-verified |
| P | Automatic level control | 1965 | New; std Fleetwood & Eldorado GM Heritage factory kit — 1965 Cadillac VVI, p.159. | Factory-verified |
| Q | Tilt steering wheel (tilt & telescope late) | 1965 | All GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| R | AM radio, signal-seeking | 1965 | All GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| R1 | AM/FM radio | 1965 | All GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| R2 | Rear radio control | 1965 | Series 75 only GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| S | Remote deck lid release | 1965 | Std Fleetwood & Eldorado (factory chart lists the option but OCR dropped its code letter) | Single-source |
| T | 4-way power bucket seat | 1965 | Bucket-seat cars GM Heritage factory kit — 1965 Cadillac VVI, p.157. | Factory-verified |
| U | Guide-Matic headlamp control | 1965 | All GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| W | Whitewall tires | 1965 | All GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| X | Electric window regulators | 1965 | All GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| Y | 6-way power seat | 1965 | All GM Heritage factory kit — 1965 Cadillac VVI, p.157. | Factory-verified |
| 1 | Optional 3.21 rear axle (non-A/C) | 1965 | All GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| 7 | Optional 3.77 rear axle | 1965 | Series 75 GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| 8 / 9 | License plate frame — one / two | 1965 | All GM Heritage factory kit — 1965 Cadillac VVI, p.153. | Factory-verified |
| A | Seat warmer (heated seat) | 1966 | Industry-first heated seat GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| B | Rear window defogger | 1966 | Exc. 75 & convertible GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| "B" (trim suffix) | Bucket seats | 1966 | Suffix on trim code; kit lists "B Bucket Seats" under Other Codes GM Heritage factory kit — 1966 Cadillac VVI, p.142. | Factory-verified |
| C | Cruise Control | 1966 | All GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| D | Door guards | 1966 | All; kit "Door Edge Guards" GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| E | Soft Ray glass | 1966 | All GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| G | Controlled differential | 1966 | All GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| H | Headrests | 1966 | All GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| J | Twilight Sentinel | 1966 | All GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| K | Automatic climate control | 1966 | Std Series 75 GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| L | Automatic level control | 1966 | Std Fleetwood series GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| M | Power door locks | 1966 | All GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| N | Power vent window regulators | 1966 | Std Eldorado & Fleetwood 60S GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| P | Front license filler plate | 1966 | All; kit "Filler Plate" GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| Q | Tilt & telescope steering wheel | 1966 | All GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| R | Reclining passenger seat w/ headrests | 1966 | All; kit "Recliner, bucket seats w/ headrests" GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| S | Remote deck lid release | 1966 | All; kit "Trunk Lock, Remote Control" GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| U | Guide-Matic headlamp control | 1966 | All GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| V | Air Injection Reactor | 1966 | California engines GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| W | Whitewall tires | 1966 | All GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| X | Electric window regulators | 1966 | All; kit "Windows, Power" GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| Y | 6-way power seat (4-way on buckets) | 1966 | All GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| 1 | AM/FM stereo radio | 1966 | All GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| 2 | AM/FM radio | 1966 | All GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| 3 | AM radio, signal-seeking | 1966 | All; kit prints code 3 as "Radio, AM" GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| 4 | Rear radio control | 1966 | Series 75 only; kit "AM Rear Control" GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| 5 / 6 | License plate frame — one / two | 1966 | All GM Heritage factory kit — 1966 Cadillac VVI, p.71. | Factory-verified |
| A | Front seat warmer | 1967–68 | All | Confirmed |
| B | Rear window defogger | 1967–68 | Exc. convertible; kit "De-Fogger, Rear Window" (code B) GM Heritage factory kit — 1967 Cadillac VVI, p.11. GM Heritage factory kit — 1968 Cadillac VVI, p.16. | Factory-verified |
| "B" (trim suffix) | Bucket seats w/ console | 1967–68 | CdV, DeVille conv., HT SdV; leather required | Confirmed |
| C | Cruise Control | 1967–68 | All | Confirmed |
| D | Door guards | 1967–68 | All | Confirmed |
| E | Soft Ray glass | 1967–68 | All | Confirmed |
| F | Front license filler plate | 1967–68 | All; 1968 kit code F = "Filler Plate" on the option-price grid (p.147). (F is dual-use: also front disc brakes.) GM Heritage factory kit — 1968 Cadillac VVI, p.147. | Factory-verified |
| F | Front disc brakes | 1967–68 | Eldorado only; 1967 kit "Front Disc Brakes (Code F)"; 1968 kit F = "Disc Brakes-Front" (legend p.148); see eldorado.md GM Heritage factory kit — 1967 Cadillac VVI, p.10. GM Heritage factory kit — 1968 Cadillac VVI, p.148. | Factory-verified |
| G | Controlled differential | 1967–68 | All | Confirmed |
| H | Front seat headrests | 1967–68 | All | Confirmed |
| H | Front shoulder belts | 1968 | Convertible only (std on closed bodies); factory kit legend "H → SHOULDER BELTS-FRONT (Convertible only)" (p.16) and option-price grid code H = "SHOULDER BELTS (Front)" (p.147); CLC 1968 accessory list agrees ("H Front shoulder belts") GM Heritage factory kit — 1968 Cadillac VVI, p.16. GM Heritage factory kit — 1968 Cadillac VVI, p.147. | Factory-verified |
| J | Twilight Sentinel | 1967–68 | All | Confirmed |
| J | Rear center seat belt | 1967 | Per CLC individual list | Single-source |
| K | Automatic climate control | 1967–68 | Std Series 75 | Confirmed |
| L | Automatic level control | 1967–68 | Std all Fleetwood | Confirmed |
| L | License plate frame — one | 1967–68 | All | Confirmed |
| M | Power (automatic) door locks | 1967–68 | All | Confirmed |
| M | Floor mats | 1968 | All; kit legend shows code M for the three floor-mat variants (Twin F&R / Twin Front / One-Piece) GM Heritage factory kit — 1968 Cadillac VVI, p.148. | Factory-verified |
| N | Power ventipanes | 1967–68 | Power windows req. on Calais | Confirmed |
| O | License plate frames — two | 1967–68 | All | Confirmed |
| P | Eldorado (auxiliary trumpet) horn | 1967–68 | All | Confirmed |
| Q | Tilt & telescope steering wheel | 1967–68 | All | Confirmed |
| R | Reclining front seat w/ headrests | 1967–68 | All | Confirmed |
| R | Optional 3.21 axle ratio | 1967 | Per CLC | Single-source |
| S | Remote-control trunk lock | 1967–68 | All | Confirmed |
| U | Guide-Matic headlamp dimmer | 1967–68 | All | Confirmed |
| V | Air Injection Reactor | 1967 | California; kit "Code V should be specified" (p.10), listed on master chart (p.11) GM Heritage factory kit — 1967 Cadillac VVI, p.11. | Factory-verified |
| W | Whitewall tires | 1967–68 | All | Confirmed |
| X | Power windows | 1967–68 | Std all exc. Calais | Confirmed |
| Y | 6-way power seat (4-way left bucket) | 1967–68 | All | Confirmed |
| Z | Rear shoulder belts | 1968 | All. Factory kit resolves this: option-price grid code Z = "SHOULDER BELTS (Rear)" (p.147) and individual accessory-code list "Z SHOULDER BELTS, Rear (2)" (p.21); front (convertible) shoulder belts are code H, not Z. CLC 1968 accessory list agrees ("Z Rear shoulder belts"). Corrects an earlier reading of Z = *front* belts. GM Heritage factory kit — 1968 Cadillac VVI, p.147. GM Heritage factory kit — 1968 Cadillac VVI, p.21. | Factory-verified |
| Z | Front shoulder belts/straps | 1967 | All; per CLC/Mileposts 1967, when front shoulder belts were still optional (before the mid-1968 federal standard made them standard on closed bodies, at which point Z shifted to *rear* — see the 1968 row above). No factory-kit corroboration for the 1967 letter yet | Single-source |
| 1 | AM/FM stereo radio | 1967–68 | Not Series 75 | Confirmed |
| 2 | AM/FM radio | 1967–68 | All | Confirmed |
| 3 | AM radio | 1967–68 | All | Confirmed |
| 4 | Rear radio control | 1967–68 | Series 75 only | Confirmed |
| 5 | Stereo tape system | 1967 | Radio required | Single-source single-source (Mileposts) |
| A01 (E) | Soft Ray tinted glass | 1969 | All | Confirmed |
| A42 / AG1 / A46 (Y) | 6-way power seat bench / Dual Comfort driver / 4-way bucket | 1969 | All | Confirmed |
| A85 (N) | Front shoulder belts | 1969 | Convertible | Confirmed |
| A90 (S) | Remote-control trunk release | 1969 | All | Confirmed |
| AG2 (V) | 6-way power passenger seat (Dual Comfort) | 1969 | DeVille/Brougham/60S | Confirmed |
| AM6 | Dual Comfort front seat; order letter S (CLC) vs 5 (Mileposts) | 1969 | Std Brougham; opt DeVille/60S | Disputed disputed (letter), confirmed (RPO) |
| AS4 (Z) | Rear shoulder belts | 1969 | All | Confirmed |
| AU3 (M) | Power door locks w/ 2-dr seatback release | 1969 | 75 wagons higher price | Confirmed |
| B93 (D) | Door edge guards | 1969 | All | Confirmed |
| C33 / C34 (A) | Seat warmer front / rear | 1969 | Rear = Series 75 | Single-source |
| C50 (B) | Rear window defogger | 1969 | Exc. conv.; std 75 | Confirmed |
| C61 (K) | Automatic climate control | 1969 | Std Series 75 | Confirmed |
| G67 (L) | Automatic level control | 1969 | Std Fleetwood | Confirmed |
| G80 (G) | Controlled differential | 1969 | Exc. Eldorado | Confirmed |
| K30 (C) | Cruise control | 1969 | All | Confirmed |
| N37 (Q) | Tilt & telescope steering wheel | 1969 | All | Confirmed |
| P26 (W) | Whitewall tires | 1969 | All | Confirmed |
| PT3 (T/X) | High-mileage / fiberglass-belted whitewalls | 1969 | Eldorado (CLC); "X five fiberglass belted" (Mileposts) | Disputed |
| T80 (U) | Guide-Matic headlamp control | 1969 | All | Confirmed |
| T82 (J) | Twilight Sentinel | 1969 | CLC misprints "Y82" once | Confirmed |
| U58 (1) | AM/FM stereo radio | 1969 | Not 75 | Confirmed |
| U69 (2) | AM/FM radio | 1969 | All | Confirmed |
| U65 (3) | AM radio, signal-seeking | 1969 | All | Confirmed |
| U67 (4) | AM radio w/ rear control | 1969 | Series 75 only | Confirmed |
| UB8 | Trumpet horn; order letter H (CLC) vs AG (Mileposts) | 1969 | All | Disputed disputed (letter), confirmed (RPO) |
| V50 (L) / V51 (O) | License frame — one / two | 1969 | All | Confirmed |
| VK1 (F) | Front license filler plate | 1969 | All | Confirmed |
| Y28 (F/F1) | Floor mats | 1969 | All | Confirmed |
| — | Vinyl roof; padded roof (75 = SPO); leather; Firemist paint; sunroof (late, vinyl roof req.); bucket seats w/console | 1969 | No codes given in sources | Single-source single-source (Mileposts, prices) |
| A01 (E) | Soft Ray glass | 1970 | All | Confirmed |
| A42 / AG1 / A46 (Y) | 6-way bench / Dual Comfort driver / 4-way bucket power seat | 1970 | All | Confirmed |
| A51 (B) | Strato bucket seats | 1970 | Eldorado only | Single-source |
| A85 (N) | Front shoulder belts | 1970 | Opt. conv.; std others | Confirmed |
| A90 (T) | Trunk lock, remote w/ warning light; letter S per Mileposts | 1970 | All | Disputed disputed (letter), confirmed (RPO) |
| AG2 (V) | 6-way Dual Comfort passenger seat | 1970 | With Y ordered | Confirmed |
| AM6 (S) | Dual Comfort seats | 1970 | Std Brougham | Confirmed |
| AS4 (Z) | Rear shoulder belts | 1970 | All | Confirmed |
| AU3 / AU5 (M) | Power door locks w/ 2-dr seat locks | 1970 | All | Confirmed |
| B36 (P) | Trunk mat | 1970 | All | Confirmed |
| B93 (D) | Door edge guards | 1970 | All | Confirmed |
| C50 (A) | Rear window defogger | 1970 | Exc. conv.; std 75 | Confirmed |
| C61 (K) | Automatic climate control | 1970 | Std Series 75 | Confirmed |
| G67 (L) | Automatic level control | 1970 | Std Fleetwood | Confirmed |
| G80 (G) | Controlled differential 2.93:1 | 1970 | Exc. Eldorado | Confirmed |
| K30 (C) | Cruise control | 1970 | All | Confirmed |
| N37 (Q) | Tilt & telescope steering wheel | 1970 | All | Confirmed |
| N42 (I) | Rim-blow horn | 1970 | All | Single-source |
| NA9 (R) | Evaporative emissions | 1970 | California only | Single-source |
| QO3 (W) | Fiberglass-belted whitewall tires | 1970 | All | Confirmed |
| T80 (U) | Guide-Matic headlamp control | 1970 | All | Confirmed |
| T82 (J) | Twilight Sentinel | 1970 | All | Confirmed |
| UB8 (H) | Trumpet horn; AG per Mileposts | 1970 | All | Disputed disputed (letter), confirmed (RPO) |
| UN2 (1) | AM/FM signal-seeking stereo radio | 1970 | New; exc. 75 | Confirmed |
| U59 (2) | AM/FM signal-seeking radio | 1970 | All | Single-source |
| U69 (3) | AM/FM radio | 1970 | All | Confirmed |
| U67 (4) | AM/FM signal-seeking, 75 rear control | 1970 | Series 75 | Confirmed |
| V50 (5) / V51 (6) | License frame — one / two | 1970 | All | Confirmed |
| VK1 (7) | Front filler plate | 1970 | All | Confirmed |
| Y28 (F) | Rubber floor mats | 1970 | All | Confirmed |
| Y31–Y34, Y38–Y39 | Accessory group codes (Basic Groups 1–4, Equipment Groups 8–9) | 1970 | Package codes | Single-source |
| — | Sunroof (vinyl roof req., CdV/SdV/Brougham); vinyl roof; leather; Firemist; stereo tape player; bucket seats w/console | 1970 | No RPO given in sources | Single-source single-source (Mileposts) |
| A01 (E) | Soft Ray glass | 1971–72 | All | Confirmed |
| A42 / AG1 (Y) | 6-way power seat, bench / Dual Comfort | 1971–72 | All | Confirmed |
| A85 (N/S) | Front shoulder belts | 1971–72 | Opt. conv. | Confirmed |
| A90 (T) | Remote-control trunk lock w/ power latch | 1971–72 | All | Confirmed |
| AG2 (V) | 6-way Dual Comfort passenger seat | 1971–72 | All | Confirmed |
| AM6 | Dual Comfort seats | 1971–72 | Std Brougham; opt DeVille | Confirmed |
| AU3 / AU5 (M) | Power door locks w/ seatback release | 1971–72 | All | Confirmed |
| B36 (P) | Trunk mat | 1971–72 | All | Confirmed |
| B93 (D) | Door edge guards | 1971–72 | All | Confirmed |
| C02 (G) | Convertible top hard boot | 1972 | Std Eldorado conv. '71 | Single-source |
| C49 / C50 (A) | Rear defogger, grid / blower type | 1971–72 | Std Series 75 | Confirmed |
| C61 (K) | Automatic climate control | 1971–72 | Std Series 75 | Confirmed |
| C93 (N/O) | Opera lamps | 1971–72 | Brougham & 75 only | Confirmed |
| CA2 / CA1 (S) | Power sunroof | 1971 / 1972 | DeVille & Eldorado w/ padded roof | Confirmed |
| D33 / DF3 (V/I) | Remote right outside mirror | 1971 / 1972 | RPO changed 1972 | Confirmed |
| G67 (L) | Automatic level control | 1971–72 | Std Fleetwood | Confirmed |
| G80 (G) | Controlled differential 2.93:1 | 1971–72 | Exc. Eldorado | Confirmed |
| G90 (Z) | Optional 3.15:1 differential | 1971–72 | Exc. Eldorado | Single-source |
| JL9 (X) | Track Master rear-brake skid control | 1971–72 | Eldorado only at intro | Confirmed |
| K30 (C) | Cruise control | 1971–72 | All | Confirmed |
| N37 (Q) | Tilt & telescope steering wheel | 1971–72 | All | Confirmed |
| QO3 (W) | Whitewall tires (QO3–QO5 in '72 groups) | 1971–72 | All | Confirmed |
| T80 (U) | Guide-Matic headlamp control | 1971–72 | All | Confirmed |
| T82 (J) | Twilight Sentinel | 1971–72 | All | Confirmed |
| UB8 (H) | Trumpet horn | 1971–72 | All | Confirmed |
| UM2 (1) | AM/FM stereo w/ 8-track | 1971–72 | All | Confirmed |
| UN2 (2) | AM/FM signal-seeking stereo | 1971–72 | All | Confirmed |
| U69 (3) | AM/FM pushbutton radio | 1971–72 | All | Confirmed |
| U67 (4) | AM/FM signal-seeking stereo, rear control | 1971–72 | Series 75 | Confirmed |
| V01 (N) | Heavy-duty cooling system | 1972 | New | Confirmed |
| V50 (5) / V51 (6) | License frame — one (+filler) / two | 1971–72 | All | Confirmed |
| VK1 (7) | Front filler plate | 1971–72 | All | Confirmed |
| Y28 (F) | Floor mats (rubber) | 1971–72 | All | Confirmed |
| YM7 (R) | Trailering package | 1972 | New | Confirmed |
| YN8 / U46 (B) | Lamp monitors | 1971–72 | New '71 as YN8; CLC's 1972 list gives U46 once and YN8 elsewhere | Disputed |
| — | Padded vinyl roof; Firemist; leather; 80-amp generator; steel-belted radials ('72, new) | 1971–72 | No RPO given in sources | Single-source single-source (Mileposts) |
| A01 (E) | Soft Ray glass | 1973 | All | Confirmed |
| A42 / AG1 (Y) | 6-way driver power seat, bench / Dual Comfort | 1973 | All | Confirmed |
| A85 (AL) | Front shoulder belts | 1973 | Conv. | Confirmed |
| A90 (T) | Electric trunk lock | 1973 | All | Confirmed |
| AG2 (V) | 6-way passenger power seat | 1973 | Dual Comfort w/ Y | Confirmed |
| AM6 | Dual Comfort seats | 1973 | Std Brougham; opt dV & Eldorado | Confirmed |
| AU3 / AU5 (M) | Power door locks w/ seat release | 1973 | All | Confirmed |
| B36 (I) | Trunk mat | 1973 | All | Confirmed |
| B93 (D) | Door guards | 1973 | All | Confirmed |
| BH1 (A1–A4) | Pillow & lap robe | 1973 | New | Confirmed |
| C02 (AI) | Convertible top hard boot | 1973 | Eldorado conv. | Confirmed |
| C49 (N) | Rear defogger, grid type | 1973 | All | Confirmed |
| C61 (K) | Automatic climate control | 1973 | Std Series 75 | Confirmed |
| C93 (O) | Opera lamps | 1973 | Brougham & 75 | Confirmed |
| CA1 (S) | Sunroof | 1973 | All | Confirmed |
| D64 (AC) | Illuminated RH vanity mirror | 1973 | New | Confirmed |
| D65 (AD) | LH outside mirror w/ thermometer | 1973 | New | Confirmed |
| DF3 (AB) | Remote right outside mirror | 1973 | All | Confirmed |
| G67 (L) | Automatic level control | 1973 | Std Fleetwood | Confirmed |
| G80 (G) | Controlled differential 2.93:1 | 1973 | Exc. Eldorado | Confirmed |
| G90 (AJ) | Optional 3.15:1 differential | 1973 | Exc. Eldorado | Single-source |
| JL9 (AH) | Track Master skid control | 1973 | All | Confirmed |
| K30 (C) | Cruise control | 1973 | All | Confirmed |
| N37 (Q) | Tilt & telescope steering wheel | 1973 | All | Confirmed |
| QD4 (R) | Steel-belted radial whitewalls | 1973 | Exc. 75 | Single-source |
| QO3 (W) | Fiberglass-belted whitewalls | 1973 | All | Confirmed |
| T80 (U) | Guide-Matic headlight control | 1973 | All | Confirmed |
| T82 (J) | Twilight Sentinel | 1973 | All | Confirmed |
| UA6 (AM) | Theft-deterrent system | 1973 | New | Confirmed |
| UB8 (AG) | Trumpet horn | 1973 | All | Confirmed |
| V4A–V4H (1–8) | Radio/antenna combos: V4A 8-track+pwr ant.; V4C AM/FM+pwr ant.; V4G AM/FM+pwr ant.; V4E sig-seek stereo+pwr ant. (75 rear ctl); V4B 8-track+W/S ant.; V4D sig-seek+W/S ant.; V4H AM/FM+W/S ant.; V4F sig-seek+W/S ant. (75) | 1973 | Windshield-antenna variants | Single-source |
| VE5 (P) | Bumper impact strips | 1973 | Mileposts believes std all '73 | Disputed |
| VJ9 (AN) | California emission test | 1973 | Mandatory CA | Confirmed |
| V50 (AE) / V51 (AF) | License frame — one (+filler) / two | 1973 | All | Confirmed |
| VK3 (X) | Front license mounting bracket | 1973 | Replaces VK1 | Confirmed |
| Y28 (F) | Floor mats (rubber) | 1973 | All | Confirmed |
| YM7 (AK) | Trailering package | 1973 | All | Confirmed |
| YM8 (B) | Lamp & low washer-fluid monitor | 1973 | All | Confirmed |
| YL2 | Firemist paint | 1973 | No order letter in CLC '73 | Confirmed |
| A42 / AG1 (Y) | Dual Comfort 60/40 seat w/ 6-way driver adjuster | 1974 | Std Brougham | Confirmed |
| A85 (AL) | Shoulder belts front | 1974 | Convertible only | Confirmed |
| A90 (T) | Electric trunk lock | 1974 | All | Confirmed |
| AG2 (V) | 6-way Dual Comfort passenger power seat | 1974 | All | Confirmed |
| AM6 (P) | Dual Comfort seat | 1974 | Std Brougham | Confirmed |
| AR3 | Air cushion restraint system (driver+passenger airbags) | 1974 | New; exc. 75 | Confirmed |
| AU3 / AU5 (M) | Automatic door locks w/ seat release | 1974 | All | Confirmed |
| B36 (I) | Trunk mat, rubber | 1974 | All | Confirmed |
| B93 (D) | Door edge guards | 1974 | All | Confirmed |
| BH1 (A1–A4) | Pillow & lap robe | 1974 | All | Confirmed |
| C02 (AI) | Convertible top hard boot | 1974 | Eldorado conv. | Confirmed |
| C49 (N) | Rear window defogger, electric | 1974 | Std 75 | Confirmed |
| C61 (K) | Automatic climate control | 1974 | Std Series 75 | Confirmed |
| C93 (O) | Opera lamps | 1974 | Brougham & 75 | Confirmed |
| CA1 (S) | Sunroof | 1974 | All | Confirmed |
| CB4 (H) | DeVille Cabriolet roof w/o sunroof | 1974 | Coupe deVille | Confirmed |
| CD4 (AQ) | Pulse windshield wiper & washer | 1974 | New | Confirmed |
| D64 (AC) | Illuminated passenger vanity mirror | 1974 | All | Confirmed |
| D65 (AD) | LH outside mirror w/ thermometer | 1974 | All | Confirmed |
| D74 (AV) | Illuminated driver vanity mirror | 1974 | All | Single-source |
| DF3 (AB) | Remote right outside mirror | 1974 | Std Series 75 | Confirmed |
| F90 (AX) | Optional 2.73:1 differential | 1974 | Exc. Eldorado | Single-source |
| G67 (L) | Automatic level control | 1974 | Std Fleetwood | Confirmed |
| G80 (AP) | Controlled differential | 1974 | Exc. Eldorado | Confirmed |
| G90 (AJ) | Optional 3.15:1 differential | 1974 | Exc. Eldorado | Single-source |
| JL9 (AH) | Track Master skid control | 1974 | All | Confirmed |
| K30 (C) | Cruise control | 1974 | All | Confirmed |
| K65 (AO) | High-energy ignition | 1974 | New | Confirmed |
| LT5 (AU) | High-altitude performance package | 1974 | New | Confirmed |
| N37 (Q) | Tilt & telescope steering wheel | 1974 | All | Confirmed |
| N65 (AT) | Space-saver spare tire | 1974 | All | Confirmed |
| QFU or QRW (R) | Steel-belted radial whitewalls | 1974 | CLC: QFU; Mileposts: QRW | Disputed |
| QLM (W) | Fiberglass bias-belted whitewalls | 1974 | All | Single-source |
| T80 (U) | Guide-Matic headlight control | 1974 | All | Confirmed |
| T82 (J) | Twilight Sentinel | 1974 | All | Confirmed |
| UA6 (AM) | Theft-deterrent system | 1974 | All | Confirmed |
| UB8 (AG) | Trumpet horn | 1974 | All | Confirmed |
| UR1 — see 1975 | (Fuel monitor introduced 1975) | — | — | Single-source — |
| V4A (1) / V4C (2) / V4G (3) / V4E (4) | Radios: 8-track stereo / sig-seek stereo / AM/FM / sig-seek w/ 75 rear control | 1974 | All | Confirmed |
| V4S | Brougham d'Elegance package | 1974 | Fleetwood Brougham | Confirmed |
| V4T | DeVille d'Elegance package | 1974 | New | Confirmed |
| V4U | Fleetwood Talisman package | 1974 | New | Confirmed |
| V4V / V4W (AS) | Turbine wheel discs | 1974 | Std d'Elegance/Talisman | Confirmed |
| V4Y (Z) | DeVille Cabriolet w/ sunroof | 1974 | Coupe deVille | Single-source |
| VJ9 (AN) | California emission system | 1974 | Mandatory CA | Confirmed |
| V50 (AE) / V51 (AF) | License frame — rear / two | 1974 | All | Confirmed |
| VK3 (X) | Front license mounting bracket | 1974 | No charge | Confirmed |
| V01 (AW) | Heavy-duty cooling system | 1974 | All | Confirmed |
| Y28 (F) | Floor mats, rubber | 1974 | All | Confirmed |
| YL1 | Sierra Grain leather upholstery | 1974 | Brougham & DeVille | Confirmed |
| YL2 | Firemist paint | 1974 | All | Confirmed |
| YM7 (AK) | Trailering package | 1974 | Std 75 | Confirmed |
| YM8 (B) | Lamp monitor system | 1974 | All | Confirmed |
| A42 (Y) | 6-way driver power seat | 1975 | Std exc. Limo & Calais | Confirmed |
| A52 / A65 | Std bench (4-dr) / split-back (coupe) front seat | 1975 | Standard-seat codes | Single-source |
| A83 (AV) | Recliner + 6-way power passenger seat (50/50) | 1975 | All | Single-source |
| A85 (AL) | Front shoulder belts | 1975 | Conv. | Confirmed |
| A90 (T) | Electric trunk lock | 1975 | All | Confirmed |
| AG2 (V) | 6-way passenger power seat (split seats) | 1975 | All | Confirmed |
| AM6 (P) | Dual Comfort 60/40 seat w/ driver adjuster | 1975 | Std Brougham | Confirmed |
| AR3 (AR) | Air bag restraints | 1975 | Exc. Limousine | Confirmed |
| AT8 or AV7 (W) | Dual Comfort 50/50 seat w/ recliner | 1975 | CLC: AT8; Mileposts: AV7 | Disputed |
| B36 (I) | Trunk mat | 1975 | All | Confirmed |
| B93 (D) | Door edge guards | 1975 | All | Confirmed |
| BH1 (A2) | Deluxe robe & pillow | 1975 | All | Confirmed |
| C02 (AI) | Convertible top hard boot | 1975 | Eldorado conv. only | Confirmed |
| C09 | Padded roof | 1975 | All | Single-source |
| C49 (N) | Rear defogger, grid type | 1975 | All | Confirmed |
| C93 (O) | Opera lamps | 1975 | All | Confirmed |
| C97 (Z) | Illuminated entry system | 1975 | New | Confirmed |
| CA1 (S) | Sunroof | 1975 | All | Confirmed |
| CB4 (H) | DeVille Cabriolet w/o sunroof | 1975 | Coupe deVille | Confirmed |
| CD4 (K) | Pulse wiper & washer | 1975 | All | Confirmed |
| CF5 (M) | Astroroof (glass dome) | 1975 | New | Confirmed |
| CO4 (H) | Eldorado Cabriolet w/o sunroof | 1975 | Eldorado | Confirmed |
| D64 (G) | Illuminated RH vanity mirror | 1975 | All | Confirmed |
| D65 (AD) | LH outside mirror w/ thermometer | 1975 | Mileposts prints "D55" once (typo) | Confirmed |
| DF3 (E) | Remote right outside mirror | 1975 | Std Series 75 | Confirmed |
| F30 (AT) | Performance axle | 1975 | Eldorado (no charge) | Single-source |
| G67 (L) | Automatic level control | 1975 | Std Fleetwood | Confirmed |
| G80 (AP) | Controlled differential 2.73:1 | 1975 | Exc. Eldorado | Confirmed |
| JL9 (AH) | Track Master skid control | 1975 | All | Confirmed |
| K30 (C) | Cruise control | 1975 | All | Confirmed |
| KF3 (AC) | Electronic fuel injection (500 V8) | 1975 | New; exc. 75 | Confirmed |
| LT5 (AU) | High-altitude package | 1975 | All | Confirmed |
| N37 (Q) | Tilt & telescope steering wheel | 1975 | All | Confirmed |
| N65 (AQ) | Space-saver / Stowaway spare | 1975 | No charge | Confirmed |
| T80 (U) | Guide-Matic headlight control | 1975 | All | Confirmed |
| T82 (J) | Twilight Sentinel | 1975 | All | Confirmed |
| UA6 (AM) | Theft-deterrent system | 1975 | All | Confirmed |
| UB8 (AG) | Trumpet horn | 1975 | All | Confirmed |
| UM2 (1) | AM/FM stereo w/ 8-track & power antenna | 1975 | All | Confirmed |
| UN2 (2) | AM/FM signal-seeking stereo | 1975 | Std Brougham & Eldorado | Confirmed |
| U67 (4) | Signal-seeking stereo w/ Limo rear control | 1975 | Series 75 | Confirmed |
| UR1 (AS) | Fuel monitor system | 1975 | New | Confirmed |
| V4S / V4T / V4U | Brougham d'Elegance / DeVille d'Elegance / Talisman | 1975 | Packages | Confirmed |
| V4V & V4W (AJ) | Turbine wheel discs | 1975 | Std d'Elegance & Talisman | Confirmed |
| VJ9 (AN) | California emissions | 1975 | Mandatory CA | Confirmed |
| V50 (AE) / V51 (AF) | License frames — rear / front & rear | 1975 | All | Confirmed |
| VK3 (X) | Front license mounting bracket | 1975 | All | Confirmed |
| VO1 (AO) | Heavy-duty cooling | 1975 | All | Confirmed |
| Y27 (F) | Carpeted floor mats | 1975 | Replaces rubber Y28 | Confirmed |
| YL1 | Shirred Sierra Grain leather | 1975 | Exc. Calais | Confirmed |
| YL2 | Firemist paint | 1975 | All | Confirmed |
| YM7 (AK) | Trailering package | 1975 | All | Confirmed |
| — (AW) | Wide-stripe whitewall tires | 1975 | No RPO printed | Single-source |
| A42 (Y) | 6-way driver power seat | 1976 | Std exc. Limo & Calais | Confirmed |
| A79 (A3) | Recliner, driver — manual | 1976 | Not Calais/Limo; Mileposts lists A79 as this and "A70" for the W-code passenger recliner | Disputed |
| A81 (A4) | 6-way power recliner, 50/50 Dual Comfort | 1976 | All | Confirmed |
| AG2 (V) | 6-way passenger power seat | 1976 | With Y on splits | Confirmed |
| AM6 (P) | Dual Comfort 60/40 w/ driver adjuster | 1976 | Std Brougham | Confirmed |
| AR3 (AR) | Air bag restraints | 1976 | Last year offered | Confirmed |
| AU4 (AW) | Automatic door locks | 1976 | New | Confirmed |
| A90 (T) | Remote trunk lock | 1976 | All | Confirmed |
| B36 (I) | Trunk mat | 1976 | All | Confirmed |
| B93 (D) | Door edge guards | 1976 | All | Confirmed |
| BH1 | Deluxe lap robe & pillow | 1976 | All | Confirmed |
| C09 | Padded vinyl roof | 1976 | All | Confirmed |
| C49 (N) | Rear defogger, grid | 1976 | All | Confirmed |
| C93 (O) | Opera lamps | 1976 | All | Confirmed |
| C97 (Z) | Illuminated entry | 1976 | All | Confirmed |
| CA1 (S) | Sunroof | 1976 | All | Confirmed |
| CD4 (K) | Controlled-cycle wipers | 1976 | All | Confirmed |
| CF5 (M) | Astroroof | 1976 | All | Confirmed |
| CO4 (H) | Cabriolet roof (DeVille or Eldorado) | 1976 | CdV / Eldorado | Confirmed |
| D64 (G) | Lighted vanity mirror | 1976 | All | Confirmed |
| D65 (AD) | Outside thermometer mirror | 1976 | All | Confirmed |
| DF3 (E) | Remote right mirror | 1976 | Std 75 | Confirmed |
| DX4 | Accent stripes | 1976 | Calais/DeVille; std d'Elegance | Single-source single-source (Mileposts) |
| G67 (L) | Automatic level control | 1976 | Std Fleetwood | Confirmed |
| G80 (AP) | Controlled differential | 1976 | Exc. Eldorado | Confirmed |
| G90 & F30 (AT) | Performance axle | 1976 | All | Confirmed |
| JL9 (AH) | Track Master | 1976 | Last year | Confirmed |
| K30 (C) | Cruise control | 1976 | All | Confirmed |
| K97 (AV) | 80-amp alternator | 1976 | All | Confirmed |
| KF3 (AC) | Electronic fuel injection | 1976 | Exc. 75 | Confirmed |
| LT5 (AU) | High-altitude package | 1976 | All | Confirmed |
| N37 (Q) | Tilt & telescope wheel | 1976 | All | Confirmed |
| N65 (AQ) | Space-saver spare | 1976 | All | Confirmed |
| N84 | Spare tire deletion | 1976 | Window-sticker credit note | Single-source single-source (Mileposts) |
| N95 (AX) | Wire wheel discs | 1976 | New | Confirmed |
| T80 (U) | Guide-Matic | 1976 | All | Confirmed |
| T82 (J) | Twilight Sentinel | 1976 | All | Confirmed |
| UA6 (AM) | Theft-deterrent system | 1976 | All | Confirmed |
| UB8 (AG) | Trumpet horn | 1976 | All | Confirmed |
| UM2 (1) | AM/FM stereo w/ 8-track | 1976 | All | Confirmed |
| UN2 (2) | AM/FM signal-seeking stereo | 1976 | Std Brougham & Eldorado | Confirmed |
| U67 (4) | Signal-seeking stereo, Limo rear control | 1976 | 75 | Confirmed |
| UN1 (5) | AM/FM stereo w/ Weather Band | 1976 | New | Confirmed |
| UR1 (AS) | Fuel monitor | 1976 | All | Confirmed |
| V4S / V4T / V4U | d'Elegance & Talisman packages | 1976 | See fleetwood.md | Confirmed |
| V4V & V4W (AJ) | Turbine wheel discs | 1976 | Std d'Elegance/Talisman | Confirmed |
| VJ9 (AN) | California emission system | 1976 | Mandatory CA | Confirmed |
| V50 (AE) / V51 (AF) | License frames | 1976 | All | Confirmed |
| VK3 (X) | Front license bracket | 1976 | All | Confirmed |
| VO1 (AO) | Heavy-duty cooling | 1976 | All | Confirmed |
| Y27 (F) | Carpeted floor mats | 1976 | All | Confirmed |
| YL1 / YL2 | Leather upholstery / Firemist paint | 1976 | Exc. Calais (YL1) | Confirmed |
| YM7 (AK) | Trailering package | 1976 | All | Confirmed |
| A79 (W)? | Dual Comfort 50/50 w/ recliner | 1976 | CLC gives W→A79; Mileposts W→A70 | Disputed |
| A42 (Y) | 6-way driver power seat | 1977 | All | Confirmed |
| A80 (3) / A81 (4) | Power recliner 50/50 — driver / passenger | 1977 | All | Confirmed |
| AG2 (V) | 6-way passenger power seat | 1977 | All | Confirmed |
| AV7 (W) | Dual Comfort 50/50 seat | 1977 | All | Confirmed |
| A90 (T) | Trunk lock (remote + pull-down) | 1977 | All | Confirmed |
| AU4 (AL) | Automatic door locks | 1977 | All | Confirmed |
| B32 (F) / B33 (R) | Carpeted front / rear floor mats | 1977 | All | Confirmed |
| B36 (I) | Trunk mat | 1977 | All | Confirmed |
| B93 (D) | Door guards | 1977 | All | Confirmed |
| C49 (N) | Rear window defogger, electric | 1977 | All | Confirmed |
| C93 (O) | Opera lamps | 1977 | All | Confirmed |
| C97 (Z) | Illuminated entry system | 1977 | All | Confirmed |
| CA1 (S) | Sunroof | 1977 | All | Confirmed |
| CD4 (K) | Controlled-cycle wiper system | 1977 | All | Confirmed |
| CF5 (M) | Astroroof | 1977 | All | Confirmed |
| CO4 (H) | Cabriolet padded top (DeVille coupe / Eldorado) | 1977 | All | Confirmed |
| D64 (G) | Illuminated vanity mirror | 1977 | All | Confirmed |
| D66 (AD) | LH outside mirror w/ thermometer | 1977 | RPO changed from D65 | Confirmed |
| DF3 (E) | Remote right outside mirror | 1977 | All | Confirmed |
| G67 (L) | Automatic level control | 1977 | "DeVille only" per CLC (std Fleetwood/Eldo/Seville) | Confirmed |
| G80 (AP) | Controlled differential | 1977 | Exc. Eldorado | Confirmed |
| GU4 (AT) | Performance axle | 1977 | All | Single-source |
| K30 (C) | (Electronic) cruise control | 1977 | All | Confirmed |
| K97 (AR) | 80-amp alternator | 1977 | All | Confirmed |
| KF3 (AC) | Electronic fuel injection (425 V8) | 1977 | All | Confirmed |
| LT5 (AU) | High-altitude package | 1977 | All | Confirmed |
| N37 (Q) | Tilt & telescope steering wheel | 1977 | All | Confirmed |
| N95 (AI) | Wire wheel discs | 1977 | All | Confirmed |
| NA2 (AZ) | Standard (federal) emission system | 1977 | All | Single-source |
| PB2 (AH) | Body-color wheel discs | 1977 | Brougham d'Elegance only | Single-source |
| T80 (U) | Guide-Matic headlight control | 1977 | All | Confirmed |
| T82 (J) | Twilight Sentinel | 1977 | All | Confirmed |
| UA6 (AM) | Theft-deterrent system | 1977 | All | Confirmed |
| UB8 (AG) | Trumpet horn | 1977 | All | Confirmed |
| UM2 (A1) | AM/FM stereo w/ 8-track | 1977 | All | Confirmed |
| UN2 (A2) | AM/FM signal-seeking stereo w/ scan | 1977 | All | Confirmed |
| U67 (A4) | Signal-seeking stereo, Limo rear control | 1977 | 75 | Confirmed |
| UP2 (A5) | AM/FM stereo w/ digital display | 1977 | New | Single-source |
| UP4 (A6) | AM/FM stereo w/ CB | 1977 | New | Single-source |
| UP1 (A2 in '78 listing) | AM/FM stereo w/ 8-track & CB | 1977 (late) | Late intro | Confirmed |
| UR1 (AS) | Fuel monitor | 1977 | All | Confirmed |
| V4W (AJ) | Turbine wheel discs | 1977 | All | Confirmed |
| VJ9 (AN) | California emissions | 1977 | Mandatory CA | Confirmed |
| V50 (AE) / V51 (AF) | License frame — one / two | 1977 | All | Confirmed |
| VK3 (X) | Front license mount | 1977 | All | Confirmed |
| VO1 (AO) | Heavy-duty cooling system | 1977 | All | Confirmed |
| YL1 / YL2 | Leather / Firemist paint | 1977 | All | Confirmed |
| YM7 (AK) | Trailering package | 1977 | All | Confirmed |
| V4S / V4T | Brougham d'Elegance / DeVille d'Elegance | 1977 | Packages | Confirmed |
| A80 (3) / A81 (4) | Power recliners — driver / passenger | 1978 | All | Confirmed |
| A90 (T) | Trunk lock w/ pull-down | 1978 | All | Confirmed |
| AG2 (V) | 6-way passenger power seat | 1978 | All | Confirmed |
| AU4 (AL) | Automatic door locks | 1978 | All | Confirmed |
| AV7 (W) | Dual Comfort 50/50 seat | 1978 | All | Confirmed |
| B32 (F) / B33 (R) | Carpeted front / rear mats | 1978 | All | Confirmed |
| B36 (I) | Trunk mat | 1978 | All | Confirmed |
| B93 (D) | Door guards | 1978 | All | Confirmed |
| C49 (N) | Rear defogger, electric | 1978 | All | Confirmed |
| C93 (O) | Opera lamps | 1978 | All | Confirmed |
| C97 (Z) | Illuminated entry | 1978 | All | Confirmed |
| CA1 (S) | Sunroof | 1978 | All | Confirmed |
| CD4 (K) | Controlled-cycle wipers | 1978 | All | Confirmed |
| CF5 (M) | Astroroof | 1978 | All | Confirmed |
| CO4 (H) | Cabriolet roof (DeVille/Eldorado) | 1978 | All | Confirmed |
| D64 (G) | Illuminated vanity mirror | 1978 | All | Confirmed |
| D66 (AD) | Outside thermometer mirror | 1978 | All | Confirmed |
| DF3 (E) | Remote right mirror | 1978 | All | Confirmed |
| G67 (L) | Electronic level control | 1978 | All | Confirmed |
| G80 (AP) | Controlled differential | 1978 | Exc. Eldorado | Confirmed |
| GU4 (AT) | Performance axle | 1978 | All | Single-source |
| K30 (C) | Cruise control | 1978 | All | Confirmed |
| K97 (AR) | 80-amp alternator | 1978 | All | Confirmed |
| KF3 (AC) | Electronic fuel injection | 1978 | All | Confirmed |
| LT5 (AU) | High-altitude package | 1978 | All | Confirmed |
| N37 (Q) | Tilt & telescope wheel | 1978 | All | Confirmed |
| N65 (AQ) | Stowaway spare tire | 1978 | All | Confirmed |
| N95 (AI) | Wire wheel discs | 1978 | All | Confirmed |
| NA2 (AZ) | Standard emission system | 1978 | All | Single-source |
| PH8 (AH) | Wire wheels (real) | 1978 | New | Confirmed |
| T80 (U) | Guide-Matic | 1978 | All | Confirmed |
| T82 (J) | Twilight Sentinel | 1978 | All | Confirmed |
| UA6 (AM) | Theft-deterrent system | 1978 | All | Confirmed |
| UB8 (AG) | Trumpet horn | 1978 | All | Confirmed |
| UM2 (A1) | AM/FM stereo w/ 8-track | 1978 | All | Confirmed |
| UP1 (A2) | AM/FM stereo w/ 8-track & CB | 1978 | All | Confirmed |
| UM4 (A3) | AM/FM sig-seek stereo w/ cassette (& CB per CLC) | 1978 | All | Confirmed |
| U67 (A4) | Sig-seek stereo, Limo rear control | 1978 | 75 | Confirmed |
| UP8 (A5) | AM/FM stereo w/ digital display | 1978 | All | Single-source |
| UP6 (A6) | AM/FM stereo w/ CB | 1978 | All | Confirmed |
| UR1 (AS) | Fuel monitor | 1978 | All | Confirmed |
| V4V/V4W (AJ) | Turbine wheel discs | 1978 | All | Confirmed |
| VG7 (AV) | Reinforced bumper (CA/FL) | 1978 | New | Confirmed |
| VJ9 (AN) | California emissions | 1978 | Mandatory CA | Confirmed |
| V50 (AE) / V51 (AF) | License frames | 1978 | All | Confirmed |
| VK3 (X) | Front license mount | 1978 | All | Confirmed |
| VO1 (AO) | Heavy-duty cooling | 1978 | All | Confirmed |
| YM7 | Trailering package | 1978 | All | Confirmed |
| — | Trip computer (Seville), Elegante YP4, Biarritz YP2/YP3/YP6 | 1978 | See seville.md / eldorado.md | Single-source — |
| A80 (3) / A81 (4) | Recliner seats — driver / passenger | 1979 | All | Confirmed |
| A90 (T) | Trunk lock | 1979 | All | Confirmed |
| AG2 (V) | 6-way passenger power seat | 1979 | All | Confirmed |
| AU4 (AN) | Automatic door locks | 1979 | All | Confirmed |
| AV7 (W) | Dual Comfort 50/50 seat | 1979 | All | Confirmed |
| B34 (F) / B35 (R) | Carpeted front / rear floor mats | 1979 | Group listings; B32/B33 also appear | Disputed |
| B36 (I) | Trunk mat | 1979 | All | Confirmed |
| B93 (D) | Door guards | 1979 | All | Confirmed |
| C49 (N) | Rear defogger, electric | 1979 | All | Confirmed |
| C93 (AS/O) | Opera lamps | 1979 | All | Confirmed |
| C97 (Z) | Illuminated entry | 1979 | All | Confirmed |
| CA1 (S) | Sunroof | 1979 | All | Confirmed |
| CD4 (K) | Controlled-cycle wipers | 1979 | All | Confirmed |
| CF5 (M) | Astroroof | 1979 | All | Confirmed |
| CO4 (H) | Cabriolet roof (DeVille) | 1979 | Eldorado's had no RPO listed | Confirmed |
| D64 (G) | Illuminated vanity mirror | 1979 | All | Confirmed |
| D66 (AT) | Outside mirror w/ thermometer | 1979 | All | Confirmed |
| DF3 (E) | Remote right mirror | 1979 | All | Confirmed |
| G67 (AW/L) | Electronic/automatic level control | 1979 | DeVille (std Fleetwood/Eldo/Seville) | Confirmed |
| G80 (AX) | Limited-slip differential | 1979 | Exc. Eldorado | Confirmed |
| K30 (C) | Cruise control | 1979 | All | Confirmed |
| K97 (BE) | 80-amp alternator | 1979 | All | Confirmed |
| KF3 (AC) | Electronic fuel injection | 1979 | Gas 350; see model docs | Confirmed |
| LT5 (AH) | High-altitude package | 1979 | All | Confirmed |
| N37 (Q) | Tilt & telescope wheel | 1979 | All | Confirmed |
| N65 (BH) | Stowaway spare | 1979 | All | Confirmed |
| N95 (AK) | Wire wheel discs (locking) | 1979 | CLC's first block prints PH8 for AK; corrected block + Mileposts agree N95 | Confirmed |
| PH8 (AL) | Wire wheels, locking | 1979 | All | Confirmed |
| T80 (U) | Guide-Matic | 1979 | All | Confirmed |
| T82 (J) | Twilight Sentinel | 1979 | All | Confirmed |
| UA6 (AP) | Theft-deterrent system | 1979 | All | Confirmed |
| UB8 (AV) | Trumpet horn | 1979 | All | Confirmed |
| UM2 (A1) | AM/FM stereo w/ 8-track (digital display) | 1979 | All | Confirmed |
| UP1 (A2) | AM/FM stereo w/ 8-track & CB | 1979 | All | Confirmed |
| UM4 (A3) | AM/FM stereo w/ cassette | 1979 | Mileposts Seville prints UM4 against its 8-track row and UM5 for cassette+CB — radio codes partially conflict | Disputed |
| U67 (A4) | AM/FM stereo w/ 8-track, Limo rear control | 1979 | 75 | Confirmed |
| UP6 (A6) | AM/FM stereo w/ CB | 1979 | All | Confirmed |
| UR1 (AQ) | Fuel monitor | 1979 | All | Confirmed |
| V4V/V4W (AJ) | Turbine wheel discs | 1979 | All | Confirmed |
| VG7 (BD) | Reinforced bumper (CA/FL) | 1979 | All | Confirmed |
| VJ9 (AG) | California emission (testing) | 1979 | Mileposts prints NA5/AF for "California emission equipment" | Disputed |
| V50 (AY) / V51 (AZ) | License frames | 1979 | All | Confirmed |
| VO1 (BF) | Heavy-duty cooling | 1979 | All | Confirmed |
| YM7 (BG) | Trailering package | 1979 | All | Confirmed |
| — (AD) | Diesel 5.7L engine (LF9) | 1979 | RPO "not listed" by CLC; LF9 confirmed via Seville/Eldorado sources | Confirmed |
| — (BJ) | Trip computer | 1979 | RPO not listed | Single-source |
| — (BC) | Engine block heater | 1979 | RPO not listed | Confirmed confirmed (option itself) |
| — (AM) | Aluminum wheels | 1979 | RPO not listed | Single-source |
| — (AR) | Chrome accent moulding | 1979 | RPO not listed | Single-source |
| — (AU) | Power LH & RH mirrors w/ thermometer | 1979 | RPO not listed | Confirmed confirmed (option itself) |
| — (O) | Painted metal roof | 1979 | RPO not listed | Single-source |
| — (P) | DeVille Custom Phaeton package | 1979 | RPO not listed | Single-source |
| L61 | 368 cid (6.0L) V8, 4-bbl | 1980 | Std DeVille/Fleetwood 1980 | Single-source |
| L62 | 368 DFI; V8-6-4 modulated-displacement in 1981 | 1980–81 | Std full-size 1981 | Confirmed |
| LF9 | 350 cid Olds diesel V8 | 1980–82 | Optional | Confirmed |
| LC4 | 4.1L Buick V6 (credit option) | 1981–82 | DeVille/Fleetwood coupes esp. | Confirmed |
| LT8 | HT4100 4.1L V8 w/ DEFI | 1982 | Standard 1982 | Confirmed |
| — | d'Elegance packages, Phaeton, cabriolet roofs continued | 1980–82 | Codes unverified for these years | Single-source — |
Source document: cadillac/deville-calais.md. Rows marked — record an option the factory offered whose RPO code is not documented in the consulted sources.