Cadillac Seville Option Codes, 1976–1982
The K-body Seville (introduced May 1975 as an early 1976 model) was Cadillac's "international-size" sedan; it was deliberately sold nearly fully equipped, so its option list is short compared with the rest of the line. The 1980–82 second generation (E/K "bustleback") record is much thinner — see the honesty notes below.
Do not confuse with the 1956–60 Eldorado Seville hardtop, covered in eldorado.md.
Year 1976
Standard: EFI Olds 350 (L49), climate control, power windows/locks/seat, AM/FM stereo, steel-belted radials, leather-or-cloth 50/50 Dual Comfort seating. Options cross-checked CLC (line list) vs Mileposts Seville page (prices; page prints no codes, so code column relies on the line-wide CLC/Mileposts 1976 RPO set — same corporate codes).
| Code | Description | Years | Models/Notes | Confidence |
|---|---|---|---|---|
| L49 | Olds 350 V8 w/ Bendix EFI | 1976–79 | Standard (only engine until diesel) | confirmed |
| CF5 (M) | Astroroof | 1976 | $885 | confirmed |
| CA1 (S) | Sunroof | 1976 | $701 | confirmed |
| D64 (G) | Illuminated vanity mirror | 1976 | $44 | confirmed |
| C97 (Z) | Illuminated entry system | 1976 | $52 | confirmed |
| N95 (AX) | Wire wheel discs | 1976 | $167 | confirmed |
| V4W (AJ) | Turbine-vaned wheel discs | 1976 | $45 | confirmed |
| K30 (C) | Cruise control | 1976 | $104 | confirmed |
| UA6 (AM) | Theft-deterrent system | 1976 | $114 | confirmed |
| UM2 (1) | AM/FM stereo w/ 8-track | 1976 | $93 (over std stereo) | confirmed |
| UN1 (5) | AM/FM signal-seeking stereo w/ Weather Band | 1976 | $61 | confirmed |
| G80 (AP) | Controlled differential | 1976 | $61 | confirmed |
| B93 (D) | Door edge guards | 1976 | $11 | confirmed |
| YL2 | Firemist paint | 1976 | $146 | confirmed |
| Y27 (F) | Carpeted floor mats | 1976 | $47 | confirmed |
| B36 (I) | Trunk mat | 1976 | $10 | confirmed |
| T80 (U) | Guide-Matic headlamp control | 1976 | $54 | confirmed |
| T82 (J) | Twilight Sentinel | 1976 | $47 | confirmed |
| VO1 (AO) | Heavy-duty cooling | 1976 | $40 | confirmed |
| YL1 | Leather upholstery | 1976 | $235 | confirmed |
| V50/V51 | License frames | 1976 | $7 each | confirmed |
| C49 (N) | Electric rear defogger | 1976 | $77 | confirmed |
| G90/F30 (AT) | Performance axle | 1976 | Price n/a | confirmed |
| YM7 (AK) | Trailering package | 1976 | $85 | confirmed |
| AU4 (AW) | Automatic door locks (power locks std) | 1976 | $100 | confirmed |
| AG2 (V) | 6-way power passenger seat | 1976 | $131 | confirmed |
| A81 (A4) | Power recliner, passenger | 1976 | $90 | confirmed |
| A79 (A3) | Manual recliner, driver | 1976 | $65 | confirmed |
| — | Engine block heater; rear shoulder belts | 1976 | Dealer-installed | single-source |
Year 1977
Same short list as 1976 with these changes (Mileposts Seville 1977; line-wide RPOs from CLC 1977):
| Code | Description | Years | Models/Notes | Confidence |
|---|---|---|---|---|
| UP4 (A6) | AM/FM stereo w/ CB | 1977 | New, $230 | confirmed |
| D66 (AD) | Illuminated outside thermometer | 1977 | $26 | confirmed |
| VJ9 (AN) | California emission equipment | 1977 | $70 | confirmed |
| LT5 (AU) | High-altitude package | 1977 | $22 | confirmed |
| A80 (3) / A81 (4) | Power recliners, driver / passenger | 1977 | $110 each | confirmed |
| CF5 / CA1 | Astroroof / sunroof (now vinyl- or painted-roof combos) | 1977 | $742–1,043 | confirmed |
Year 1978
New: Elegante package, trip computer, real wire wheels, cassette and CB radio combinations, diesel late in the year.
| Code | Description | Years | Models/Notes | Confidence |
|---|---|---|---|---|
| YP4 (Y) | Seville Elegante package (two-tone, perforated-leather 40/40, wire wheels) | 1978 | $2,600 | confirmed |
| LF9 | Olds 350 diesel V8 | 1978 (mid) –79 | First GM diesel passenger car | confirmed |
| PH8 (AH) | Authentic locking wire wheels | 1978 | $541 | confirmed |
| N95 (AI) | Locking wire wheel discs | 1978 | $179 | confirmed |
| V4W (AJ) | Turbine wheel discs | 1978 | $54 | confirmed |
| — | Trip computer (Tripmaster) | 1978 | $875; RPO not printed in sources (order BJ in '79) | single-source |
| UM4 (A3) | AM/FM stereo, 8-track or cassette w/ CB, digital display | 1978 | Brougham/Seville only at intro | confirmed |
| UP1 (A2) | AM/FM stereo w/ tape & CB | 1978 | $427 | confirmed |
| UP8 (A5) | AM/FM stereo w/ digital display | 1978 | $106 | confirmed |
| UP6 (A6) | AM/FM stereo w/ CB | 1978 | $281 | confirmed |
| C93 (O) | Opera lamps | 1978 | New for Seville, $63 | confirmed |
| A90 (T) | Power trunk pull-down | 1978 | $67 | confirmed |
| G80 | Limited-slip differential | 1978 | $67 | confirmed |
| VG7 (AV) | Reinforced bumper (CA/FL) | 1978 | Line-wide | confirmed |
| K30, T82, T80, C49, C97, D64, D66, B93, B36, YL1, YL2, YM7, VO1, VJ9, LT5, AU4, AG2, A80/A81, V50/V51 | Carry-over comfort/convenience set | 1978 | Same codes as 1977 | confirmed |
Year 1979
Last K-body year. Cross-checked CLC 1979 vs Mileposts Seville 1979 (which prints RPO + order code pairs).
| Code | Description | Years | Models/Notes | Confidence |
|---|---|---|---|---|
| YP4 (Y) | Seville Elegante package | 1979 | $2,735; w/ Astroroof $3,873, w/ sunroof $3,663 | confirmed |
| LF9 (AD) | Diesel 5.7L V8 | 1979 | $287 | confirmed |
| UM4 (A1/A3) | AM/FM stereo w/ 8-track or cassette, digital display | 1979 | Mileposts pairs UM4 w/ A1 8-track; CLC pairs A3 cassette — radio code pairings conflict | disputed |
| UM5 (A2) | AM/FM stereo w/ cassette, digital display & CB | 1979 | Mileposts only | single-source |
| NA5 (AF) | California emission equipment | 1979 | Mileposts; CLC gives VJ9 (AG) "California emission testing" | disputed |
| N95 (AK) | Locking wire wheel discs | 1979 | $189 | confirmed |
| PH8 (AL) | Authentic locking wire wheels | 1979 | $569 | confirmed |
| — (BJ) | Trip computer | 1979 | $920; RPO not printed | single-source |
| D64 (G), C97 (Z), D66 (AT), K30 (C), B93 (D), B34 (F), B35 (R), B36 (I), C93 (AS), T80 (U), C49 (N), G80 (AX), A90 (T), AG2 (V), A81 (4), YL1, V51 (AZ) | Carry-over set w/ 1979 order letters | 1979 | See deville-calais.md 1979 table | confirmed |
| — | Electric power L&R mirrors w/ thermometer (AU), $90 | 1979 | RPO not printed | confirmed (option itself) |
Years 1980–1982 (second generation, bustleback)
Coverage gap. No accessible per-year option-code list was found for 1980–82 Seville; only engine RPOs and package names are verifiable. Notable: sources disagree on whether the diesel or the gas 368 was the "standard" 1980–81 engine (the diesel was heavily promoted as standard at launch; several references list L61/L49 as no-cost alternatives).
| Code | Description | Years | Models/Notes | Confidence |
|---|---|---|---|---|
| LF9 | Olds 350 diesel V8 | 1980–82 | Standard at 1980 launch per most references | confirmed |
| L61 | Cadillac 368 4-bbl | 1980 | No-cost gas alternative | single-source |
| L49 | Olds 350 gas EFI | 1980 | California cars | single-source |
| L62 | Cadillac 368 V8-6-4 (DFI) | 1981 | Std gas engine 1981 | confirmed |
| LC4 | Buick 4.1L V6 | 1981–82 | Credit option | confirmed |
| LT8 | HT4100 4.1L V8 DEFI | 1982 | Standard | confirmed |
| — | Elegante package continued (two-tone, wires) | 1980–82 | 1978–79 RPO was YP4; 1980–82 code unverified | single-source |
| — | Full Cabriolet roof, Astroroof, memory seat, trip computer continue | 1980–82 | Codes unverified | — |
Sources
- CLC (RRR Region) Color, Upholstery & Accessory Database 1940–1979 — https://rrrclc.org/wp-content/uploads/2014/05/CLC-Color-Database-2017-03-20.pdf (1976–79 line lists incl. Seville trims/paints; Elegante YP4)
- Automotive Mileposts Seville Optional Equipment 1976/1977/1978/1979 —
http://automotivemileposts.com/cadillac/seville/seville1976optionalequipment.html,
…1977…,…1978…,…1979…(via web.archive.org; prices, 1979 RPO pairs) - Wikipedia, Cadillac Seville (engines, Elegante) — https://en.wikipedia.org/wiki/Cadillac_Seville
- ht4100.com (1980–82 engine codes, shared E/K data) — https://www.ht4100.com/options.html