Cadillac · 2005-2011

STS — Sigma (2005–2011)

sts · sts-v · sts-v8 · sts base · sts luxury · sts luxury performance · sts rhd

264 option rows 264 RPO codes 5 model years

100% Factory-verified

✓ Factory-verified · 264
● Confirmed · 0
◑ Single-source · 0
⚠ Disputed · 0

Applicable options

Documented RPO codes

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Model year

Show internal codes (62)

STS — Sigma (2005–2011) RPO codes
Code	Option	Years	Notes & factory source	Confidence
Engines
LC3	Engine, gas, 8 cylinder, 4.4L, multiport fuel injection, V8, supercharged, aluminum, DOHC, GM	2006–2009	only in: STS-V (Wikipedia). GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
LH2	Engine, gas, 8 cylinder, 4.6L, sequential fuel injection, V8, DOHC, high output, aluminum, GM	2005–2009	The 2009 list prints "ALUM" and a hyphen after "Engine". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
LLT	Engine, gas, 6 cylinder, 3.6L, SIDI, V6, aluminum, 60 degrees, 224 kW, GM	2008, 2009	The 2008 list omits "224 KW". GM factory document — 2008 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
LP1	Engine, gas, 6 cylinder, 2.8L, sequential fuel injection, V6, DOHC, aluminum, 60 degrees, GM	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
LY7	Engine, gas, 6 cylinder, 3.6L, sequential fuel injection, V6, aluminum, 60 degrees, GM	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
Transmissions
M22	Transmission, automatic 5 speed, HMD, 5L50-E, electronic, O/D	2005, 2006	The 2005 and 2006 STS lists print "6 Speed" with 5L50-E; the 2005 CTS list and most of GM's lists print 5 speed, which is used here. Pairs with the 4.6L LH2. GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2006 cadillac sts rpo code list, p.1.	Factory-verified
M82	Transmission, automatic 5 speed, HMD, 5L40-E, electronic	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
MV3	Transmission, automatic 5 speed, HMD, 5L50-E PTU, electronic, O/D	2005, 2006	Pairs with the 4.6L LH2. GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2006 cadillac sts rpo code list, p.1.	Factory-verified
MX0	Merchandised transmission, automatic, provisions, O/D	2006–2009	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
MX5	Transmission, automatic 5 speed, HMD, 5L40-E PTU, O/D	2006, 2007	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2007 cadillac sts rpo code list, p.1.	Factory-verified
MX7	Merchandised transmission, automatic, provisions, O/D, all wheel drive	2006–2009	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
MYB	Transmission, automatic 6 speed, HMD, 6L50	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
MYC	Transmission, automatic 6 speed, HMD, 6L80	2006–2009	only in: STS-V (Wikipedia). GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
Axles
G80	Axle, Positraction limited slip	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
GU2	Axle, rear, 2.73 ratio	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
GU5	Axle, rear, 3.23 ratio	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
GU6	Axle, rear, 3.42 ratio	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
Packages & Trims
W21	Appearance package, Cadillac Platinum Edition	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
Y41	Sales package, Cadillac, luxury level 002	2008	GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
Y48	Sales package, Cadillac, international luxury 002	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
Y53	Sales package, Cadillac, technology driver awareness	2008, 2009	The 2008 list omits "Cadillac". GM factory document — 2008 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
Equipment
A26	Window, European glazing, all	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
A45	Memory, seat adjuster and mirror, power, driver and personalization	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
A82	Restraint, head	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
AE5	Lock control, entry, remote entry, low power, start	2005–2009	The 2009 list adds "Do not use after 2009 model year". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
AHK	Control, seat, rear, power lumbar, massage	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
AL0	Sensor indicator, inflatable restraint, front passenger/child presence detector	2007–2009	The lists print "Sender Indicator"; GM's other lists print "Sensor Indicator", which is used here. GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
AL2	Control, seat, power lumbar	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
AL9	Control, seat, power lumbar, driver	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
AN6	Restraint provisions, child, Australia/New Zealand	2008	GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
AP9	Net, convenience	2006–2009	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
AQ9	Seat, front, bucket, luxury	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
ARB	Equipment, body structure reinforcement	2006–2009	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
ASG	Seat, rear, bench 40/20/40, with multifunctional armrest	2007–2009	The lists print "RR", read as rear. GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
ASH	Seat, rear, bucket 40/0/40, with integrated functional console	2007–2009	The lists print "RR", read as rear. GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
AT8	Restraint provisions, child, rear seat, rear facing	2007–2009	The 2007 and 2008 lists print "RR Seat, RR Facing", read as rear. GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
AT9	Control, seat, power lumbar, passenger	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
AU0	Lock control, entry, remote entry	2006, 2007	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2007 cadillac sts rpo code list, p.1.	Factory-verified
AU8	Lock control, entry, remote entry, specific frequency	2005–2008	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
AX4	Restraint conversion, seat, manual, European	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
AY0	Restraint system, seat, inflatable, driver and passenger, front, side, roof side	2005, 2007, 2009	The 2005 list prints "Driver & Pass, Front, Side". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
B18	Ornamentation, interior, deluxe	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
B19	Ornamentation, interior, customs	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
B20	Ornamentation, interior, luxury	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
B57	Ornamentation, exterior, deluxe	2005–2009	The 2005 and 2006 lists print "Ornamentation Extra Deluxe"; the 2009 list and GM's other lists print "Exterior, Deluxe". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
BC8	Ornamentation, interior, driver map pockets	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
C9B	Lamp, interior, ambient, door	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
C9J	Lamp, interior, ambient, instrument panel	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
CE1	Wiper system, windshield, pulse, moisture sensitive	2005–2009	The 2005 and 2006 lists print "Washer System"; the 2007-2009 lists print "Wiper System". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
CE4	Washer, headlamp, high pressure	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
CF5	Roof, sun, glass, sliding, electric	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
CFN	Roof, sun, glass, sliding, electric, not installed	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
CJ2	HVAC system, air conditioner, front, automatic temperature control, auxiliary temperature control	2005–2008	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
D24	Mirror, outside left-hand and right-hand, remote control, electric, heated, light sensitive, power folding, color	2007–2009	The 2009 list omits "color". GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
D26	Mirror, outside left-hand and right-hand, remote control, electric, heated, power folding	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
DC5	Mirror, inside rear vanity, headlining, illuminated	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
DD7	Mirror, inside rearview, light sensitive, compass	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
DD8	Mirror, inside rearview, light sensitive	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
DL7	Mirror, outside left-hand and right-hand, remote control, electric, heated, power folding, color	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
DR2	Mirror, outside left-hand and right-hand, remote control, electric, heated, light sensitive, manual folding, color	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
DT4	Ashtray, cigarette lighter	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
E5A	Chassis, retuned	2007–2009	The 2007-2009 lists print "Returned"; GM's other lists print "Retuned", which is used here. GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
F55	Chassis, continuously variable real time damping, magneto rheological	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
FE1	Suspension system, soft ride	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
FE3	Suspension system, sport	2005–2009	The 2005 and 2006 lists print "Soft Ride" (the FE1 wording); the 2007-2009 lists and GM's other lists print Sport, which is used here. GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
FE4	Suspension system, special ride and handling	2006–2009	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
G64	Level control, automatic, self-adjusting	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
GME	Ornamentation, exterior, GM Mark of Excellence	2006	GM factory document — 2006 cadillac sts rpo code list, p.1.	Factory-verified
J56	Brake system, power, front and rear disc, antilock, front and rear wheel, heavy duty	2006–2009	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
JE2	Brake lining, performance driving	2005–2007	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2007 cadillac sts rpo code list, p.1.	Factory-verified
JE5	Brake system, power, antilock, front and rear wheel	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
JL4	Control, active brake	2005, 2006	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2006 cadillac sts rpo code list, p.1.	Factory-verified
JL7	Control, active brake, version 3.0	2008	GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
JL9	Brake system, power, front and rear disc, antilock, front and rear wheel	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
JNG	Shaft, propeller, painted	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
K05	Heater, engine block	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
K14	Filter, air, automatic recirculating	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
K59	Cruise control, automatic, adaptive	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
KA1	Heater, seat, front	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
KA3	Heater, engine block, 220V	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
KA6	Heater, seat, rear	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
KB6	Heater, seat, cooling, front	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
KC4	Cooling system, engine oil	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
KD5	Heater, seat, cooling, rear	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
KG4	Generator, 150 amp	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
KNR	Cooling system, axle	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
KW7	Generator, 170 amp	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
MTF	Provision, fire extinguisher mounting	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
N05	Lock control, fuel filler cap	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
N30	Steering wheel, deluxe	2005, 2006	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2006 cadillac sts rpo code list, p.1.	Factory-verified
N31	Steering wheel, heated	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
N87	Wheel, 18 x 8, aluminum	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
N88	Wheel, 17 x 7.5, aluminum, premium	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
N93	Wheel, 17 x 7.5, aluminum	2006–2009	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
NP5	Steering wheel, leather wrapped	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
NR7	Steering wheel, leather wrapped, heated	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
NR8	Steering wheel, leather and wood, 3 spokes	2007	GM factory document — 2007 cadillac sts rpo code list, p.1.	Factory-verified
NV7	Steering, power, variable effort	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
P32	Wheel, 18 x 8.5, aluminum, painted	2006–2009	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
P40	Wheel, 18 x 8, aluminum, sport	2008, 2009	The 2008 list prints "Chromed"; the 2009 list and GM's other lists print Sport, which is used here. GM factory document — 2008 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
P73	Wheel, 18 x 8.5, chrome, flanged	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
PB4	Lock control, wheel	2006–2009	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
PD5	Wheel, 18 x 8, aluminum, chromed	2007, 2008	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
PGK	Wheel, 18 x 8, aluminum, chrome, 14 spokes	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
PTB	Wheel, 17 x 7.5, aluminum, polished	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
Q11	Tire, all, P235/50R17 front and P255/45R17 rear	2005–2008	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
Q12	Tire, all, P235/50R18 front and P255/45R18 rear	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
Q13	Wheel, 17 x 7.5 front and 17 x 8 rear, polished	2005–2008	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
Q14	Wheel, 17 x 7.5 front and 17 x 8 rear, painted	2005–2008	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
Q19	Tire, all, P255/45R18 front and P275/40R19 rear EMT	2006–2009	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
Q20	Wheel, 18 x 8.5 front and 19 x 9.5 rear	2006–2009	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
Q9Y	Wheel, 18 x 8, aluminum, polished, sport	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
QAF	Tire, all, 255/45ZR18-99Y BW TL HW4	2006–2009	The list prints the size without the P. GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
QCH	Tire, all, 235/55R17-98H BW R/PE ST TL AL3	2007–2009	The list prints the size without the P. GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
QF8	Wheel, 18 x 8, aluminum, polished	2006, 2007, 2009	The 2006 list prints "Wheel 18 x 8, Aluminum" without polished. GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
QKP	Tire, all, P235/50R17-95S BW R/PE ST TL ALS	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
QKS	Tire, all, P235/50R17-95V BW R/PE ST TL AL3	2008, 2009	GM factory document — 2008 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
T2H	Ornamentation, exterior, export unique requirements	2005	GM factory document — 2005 cadillac sts rpo code list, p.1.	Factory-verified
T2J	Ornamentation, interior, export unique requirements	2006, 2008, 2009	The 2009 list adds "(AOS Display)". GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
T43	Spoiler, rear	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
T62	Lighting, daytime running	2005, 2006	The 2005 and 2006 lists print the daytime running lighting itself; the 2007-2009 lists print it as a delete (separate row). GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2006 cadillac sts rpo code list, p.1.	Factory-verified
T62	Lighting, daytime running, delete	2007–2009	The 2005 and 2006 lists print the plain daytime running lighting (separate row). GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
T65	Lamp system, daytime running, export	2005–2009	The 2009 list adds "Do not use after 2009 Global/New major programs". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
T79	Lamp, fog, rear	2005, 2007–2009	The lists print "RR", read as rear. GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
T84	Headlamps, right-hand rule of the road, E mark	2005–2009	The 2009 list adds "Do not use after 2009 Global/New major programs". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
T90	Lamp, signaling and marker, export	2005, 2006	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2006 cadillac sts rpo code list, p.1.	Factory-verified
TQ5	Control, intelligent high beam	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
TR0	Lamp, interior, roof, rear, courtesy and dual reading	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
TR7	Headlamps, control, leveling system, automatic	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
TT6	Headlamps, high intensity discharge	2005–2009	The 2009 list adds "Do not use after 2009 Global/New major programs". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
TT7	Headlamps, high intensity discharge, left-hand rule of road	2005–2009	The 2009 list adds "Do not use after 2009 Global/New major programs". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
TT8	Headlamps, high intensity discharge, right-hand rule of road	2005–2009	The 2009 list adds "Do not use after 2009 Global/New major programs". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
TUM	Alarm, seat belt warning, additional	2008, 2009	GM factory document — 2008 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
U03	Horn, noise regulation	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
U19	Speedometer, instrument, kilometers and miles, kilometer odometer	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
U2J	Digital audio system, S-band, not installed	2006–2009	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
U2K	Digital audio system, S-band	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
U2L	Digital audio system, L-band	2005, 2006	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2006 cadillac sts rpo code list, p.1.	Factory-verified
U30	Cluster, instrument, tachometer, clock	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
UA2	Theft deterrent system, export specific	2005–2009	The 2009 list adds "Do not use after 2009 Global/New major programs". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
UA6	Theft deterrent system	2005–2009	The 2009 list adds "Do not use after 2009 Global/New major programs". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
UA7	Theft deterrent system, export specific, variation 2	2007, 2008	The lists print "Var #02". GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
UC2	Speedometer, instrument, kilometers and miles, kilometer odometer, positive bias	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
UC8	Speaker system 11, premium	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
UD4	Alarm, vehicle speed, 120 km/h	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
UD7	Sensor indicator, rear parking assist	2005, 2006	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2006 cadillac sts rpo code list, p.1.	Factory-verified
UDA	Communication equipment, vehicle GPS 1, deactivated	2007	GM factory document — 2007 cadillac sts rpo code list, p.1.	Factory-verified
UE1	Communication system, vehicle, GPS 1	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
UFL	Sensor indicator, lane departure warning	2008, 2009	GM factory document — 2008 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
UFT	Sensor indicator, side obstacle detection	2008, 2009	GM factory document — 2008 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
UG1	Garage door opener, universal	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
UH3	Indicator, low tire pressure, variation 2	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
UHB	Lock control, entry, remote entry passive, remote start, specific frequency	2007–2009	The 2009 list adds "Do not use after 2009 model year". GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
UJ6	Indicator, low tire pressure	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
UJ9	Indicator, low tire pressure, variation 1	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
UL1	Frequencies, Australia/New Zealand	2008	GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
UQ7	Speaker system, premium performance, enhanced audio, Bose	2005	GM factory document — 2005 cadillac sts rpo code list, p.1.	Factory-verified
UQY	Infotainment system 018	2008	GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
UQZ	Infotainment system 19	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
UV6	Display, head up	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
UX8	Speaker system 8, deluxe	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
UY5	Speaker system 15, deluxe	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
V03	Cooling system, extra capacity	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
V08	Cooling system, heavy duty	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
V09	Cooling system, powertrain, high ambient	2006, 2007	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2007 cadillac sts rpo code list, p.1.	Factory-verified
V76	Hook, tow	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
V92	Trailer provisions	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VJ1	License plate, rear mounting package, Japanese	2005, 2007–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VK3	License plate, front mounting package	2008, 2009	GM factory document — 2008 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VL4	License plate, front mounting package, EEC	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VL6	License plate, front mounting package, Japanese	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VLF	License plate, front mounting package, China	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VMA	License plate, front mounting package, Korea	2005–2007	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2007 cadillac sts rpo code list, p.1.	Factory-verified
VP6	Noise control	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VPM	Modification, noise control, Mexico	2006–2009	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VR5	Provisions, slow vehicle warning triangle mounting	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VS1	First aid kit, vehicle	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VU9	Flashlight, mounting provisions	2005, 2006	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2006 cadillac sts rpo code list, p.1.	Factory-verified
W11	Navigation disc data, nav data 1	2006–2009	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
W12	Navigation disc data, nav data 2	2006–2009	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
XA7	Washer nozzles, heated, windshield	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
YQ1	Infotainment system 009	2005–2009	The 2009 list prints "9". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
YQ2	Infotainment system 010	2005–2009	The 2009 list prints "10". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
YQ3	Infotainment system 011	2005	GM factory document — 2005 cadillac sts rpo code list, p.1.	Factory-verified
YQ4	Infotainment system 012	2005–2009	The 2009 list prints "12". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
YQ5	Infotainment system 13	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
YQ6	Infotainment system 014	2005–2009	The 2009 list prints "14". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
YQ7	Infotainment system 015	2005–2009	The 2009 list prints "15". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
YQ8	Infotainment system 016	2007–2009	The 2009 list prints "16". GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
YQ9	Infotainment system 017	2007–2009	The 2009 list prints "17". GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
Z5X	Mirror provisions, Arabic language	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
Z5Y	Mirror provisions, outside, etched warning	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
Interior Trim
131	Interior trim, Light Gray/Ebony	2007	GM marks it "(1) (06)". GM factory document — 2007 cadillac sts rpo code list, p.1.	Factory-verified
191	Interior trim, Ebony	2007	GM marks it "(1) (00)". GM factory document — 2007 cadillac sts rpo code list, p.1.	Factory-verified
311	Interior trim, Ebony/Light Cashmere	2007	GM marks it "(1) (07)". GM factory document — 2007 cadillac sts rpo code list, p.1.	Factory-verified
321	Interior trim, Medium Dark Cashmere	2007	GM marks it "(04)". GM factory document — 2007 cadillac sts rpo code list, p.1.	Factory-verified
391	Interior trim, Cocoa/Light Cashmere	2007	GM marks it "(1) (08)". GM factory document — 2007 cadillac sts rpo code list, p.1.	Factory-verified
491	Interior trim, Ebony/Saddle Brown	2007	GM marks it "(1) (07)". GM factory document — 2007 cadillac sts rpo code list, p.1.	Factory-verified
671	Interior trim, Tango Red/Ebony	2007	GM marks it "(1) (07)". GM factory document — 2007 cadillac sts rpo code list, p.1.	Factory-verified
IL2	Trim, interior design L2	2008	Interior design code. GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
IL3	Trim, interior design L3	2008	Interior design code. GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
IL4	Trim, interior design L4	2008	Interior design code. GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
Internal / Process
B3V internal	Test, extended water	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
BAG internal	Parts package, export	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
CKD internal	Vehicle, completely knocked down (CKD)	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
DCP internal	Processing, directions and connections service package	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
DL5 internal	Decal, roadside service information	2006, 2007	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2007 cadillac sts rpo code list, p.1.	Factory-verified
FE9 internal	Certification, emission, federal	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
JJA internal	PT dress subassembly installed (modular optimization method only)	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
JJB internal	PT dress subassembly, not installed (modular optimization method only)	2008, 2009	GM factory document — 2008 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
JJC internal	Instrument panel assembly, installed (modular optimization method only)	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
JJD internal	Instrument panel assembly, not installed (modular optimization method only)	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
JJJ internal	Suspension, front, installed (modular optimization method only)	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
JJK internal	Suspension, rear, installed (modular optimization method only)	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
JJL internal	Suspension, front, not installed (modular optimization method only)	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
JJM internal	Suspension, rear, not installed (modular optimization method only)	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
LAL internal	Plant code, Lansing, MI, USA, Grand River	2005, 2007–2009	The 2007-2009 lists print the plant as "Lansing, Mi USA (Grand River)". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
NA3 internal	Emission system, Japan	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
NC1 internal	Emission system, California, LEV	2005, 2006	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2006 cadillac sts rpo code list, p.1.	Factory-verified
NE1 internal	Certification, emission, geographically restricted registration for vehicles up to 14,000 lbs GVW	2006–2009	The lists add "Use 2003 Model Year". GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
NF4 internal	Emission system, clean fuel fleet	2006	GM factory document — 2006 cadillac sts rpo code list, p.1.	Factory-verified
NF9 internal	Emission system, general, unleaded	2005, 2006	The 2007 list prints a different meaning (separate row). GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2006 cadillac sts rpo code list, p.1.	Factory-verified
NF9 internal	Emission system, general, OBD MIL suppression	2007	The 2005 and 2006 lists print general unleaded (separate row). GM factory document — 2007 cadillac sts rpo code list, p.1.	Factory-verified
NG1 internal	Certification, emission, geographically restricted registration for vehicles up to 6,000 lbs GVW	2006	GM factory document — 2006 cadillac sts rpo code list, p.1.	Factory-verified
NQU internal	Emission system, Korean, ULEV	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
NT4 internal	Emission system, EEC 05	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
NT7 internal	Emission system, federal, Tier 2	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
NT9 internal	Emission system, federal, Tier 2 phase-out	2005–2008	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
NU1 internal	Emission system, California, LEV2	2005–2007, 2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
NU2 internal	Emission system, California, ULEV2	2007	GM factory document — 2007 cadillac sts rpo code list, p.1.	Factory-verified
NU4 internal	Emission system, California, LEV2 plus	2005, 2006	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2006 cadillac sts rpo code list, p.1.	Factory-verified
NU5 internal	Emission system, California, BIN 4	2006–2008	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
NUA internal	Emission system, California, 150K LEV2	2008	GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
SHC internal	Plant code, Shanghai, China	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
THO internal	Fleet sales, Penske GO no. G1667, G1668, G1674, G1676	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
V4X internal	Model conversion, GMX295, STS V8	2006–2009	GM factory document — 2006 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
V73 internal	Vehicle statement, USA/Canada	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
V78 internal	Vehicle statement, delete	2005–2009	The 2005 and 2006 lists print only "Vehicle Statement"; the 2007-2009 lists add "Delete". GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
V87 internal	Vehicle statement, Gulf States Organization	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VA7 internal	Language label, French	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VB1 internal	Label, shipping, Japan	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VBX internal	Language label, Arabic	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VC4 internal	Label, price/fuel economy, Puerto Rico and Virgin Islands	2005–2008	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
VC5 internal	Label, shipping, except US, US possessions, or Japan	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VE7 internal	Plate, vehicle identification, Australia/New Zealand	2008	GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
VG1 internal	Protector, underhood compound, corrosion preventive, water based, clear	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VG6 internal	Label, information, bumper impact, 5 mph, California	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VG8 internal	Vehicle label, notice to buyer	2005, 2006	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2006 cadillac sts rpo code list, p.1.	Factory-verified
VG9 internal	Protector, wax, exterior body	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VH3 internal	Label, information, bumper impact, 5 mph, Hawaii	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VH5 internal	Plate, vehicle identification	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VH9 internal	Envelope, owner information manual	2008, 2009	The 2008 list prints "Info Man". GM factory document — 2008 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VJ2 internal	Label, export headlamp adjust	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VJ4 internal	Label, export child seat location	2005, 2006	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2006 cadillac sts rpo code list, p.1.	Factory-verified
VKR internal	Modification, requirement, vehicle with lead content	2009	GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VL2 internal	Label, spare caution, compact spare	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VM3 internal	Label, information, consumer, contains bumper impact standard for front 5 mph and rear 5 mph	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VT7 internal	Owner's manual, English language	2008, 2009	GM factory document — 2008 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
VZ3 internal	Label, mercury disposal notification	2005–2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
Y7C internal	Conversion, act promoted to zero level	2007–2009	GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
YB1 internal	Plate, engine identification	2006	GM factory document — 2006 cadillac sts rpo code list, p.1.	Factory-verified
YF5 internal	Certification, control, electronic throttle	2007, 2008	The 2009 list prints California emission certification (separate row). GM factory document — 2007 cadillac sts rpo code list, p.1. GM factory document — 2008 cadillac sts rpo code list, p.1.	Factory-verified
YF5 internal	Certification, emission, California	2009	The 2007 and 2008 lists print electronic throttle control certification (separate row). GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified
Z49 internal	Export Canadian modification, mandatory base equipment	2005, 2008, 2009	GM factory document — 2005 cadillac sts rpo code list, p.1. GM factory document — 2009 cadillac sts rpo code list, p.1.	Factory-verified

Source document: cadillac/sts-sigma.md. Rows marked — record an option the factory offered whose RPO code is not documented in the consulted sources.