Cadillac VIN Decoder and Options List
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Article By: Dale Ogden
Dale Ogden is the founder of Check Your Spec and a recognized automotive expert with over 20 years of experience in vehicle valuations, forecasting, and asset management. A former Forecast Manager at CAP HPI – the UK’s leading vehicle valuation authority (think of them as the equivalent to Kelley Blue Book). He pioneered EV depreciation models now used by top manufacturers and has produced residual values for over 10,000 vehicles. Dale’s insights are trusted by automotive professionals, enthusiasts, and buyers worldwide.
Table of Contents
Free Cadillac VIN Decoder
What Is A Cadillac VIN?
A Cadillac VIN decoder is a tool that lets you take the Vehicle Identification Number (VIN) from a Cadillac and break it down into useful details about the car. Every VIN is a 17 character code made up of letters and numbers, and each section of that code represents something specific, like the model year, where it was built, the engine type, trim level, and even safety features.
For example, if you punch a Cadillac VIN into a decoder, you can usually see whether the car has a V6 or V8 engine, if it’s a luxury or performance trim, and where it rolled off the assembly line. It’s especially handy if you’re buying a used Cadillac, since it helps confirm the exact specifications match what’s being advertised. Some VIN decoders also connect to larger databases so you can check for recalls, accident history, or past ownership records.
Cadillac VIN Locations
What Are Cadillac Option Codes?
Cadillac option codes, also called RPO codes (Regular Production Option codes), are short three character combinations of letters and numbers that GM uses to identify every single feature that went into a car when it was built. Think of them like the factory’s shorthand.
For example, there’s an RPO code for your paint color, your transmission, your wheels, your interior trim, even for small details like whether the car came with heated seats, navigation, or a towing package. They’re not just for fancy add ons; even “standard” features get a code.
On older Cadillacs you’ll usually find a sticker (often in the glovebox, trunk, or door jamb) listing all those codes. On newer models, Cadillac moved to a QR code on the driver’s side door pillar; scanning it brings up the whole build sheet with every RPO code.
Why does it matter?
If you’re buying a used Cadillac, the option code list tells you exactly what the car came with from the factory.
If you’re ordering parts or accessories, having the right codes makes sure you get a perfect fit.
Enthusiasts and collectors also use them to verify rare trims, engines, or special packages.
In short: a Cadillac “option code list” is the factory recipe for your specific car.
Cadillac Exterior Paint Codes
WA8555: Black (Very common)
WA817K: Crystal White Tricoat
WA501Q: Carbon Black Metallic
WA406Y: Velocity Red
WA636R: Switchblade Silver Metallic
WA414P: Blue Ray Metallic
WA9260: Dark Carmine Red Metallic
WA384A: Phantom Gray Metallic
WA464C: Bronze Dune Metallic
WA412P: Deep Amethyst Metallic
WA722J: Opulent Blue Metallic
WA301N: Stellar Black Metallic
WA121V: Radiant Silver Metallic
WA139X: Dark Adriatic Blue Metallic
WA800J: White Diamond Tricoat
WA8867: Medium Dark Teal Metallic (Early 2000s)
WA810T: Sandstone Metallic
WA9841: Dark Cherry Metallic
WA9567: Bright Red
WA9849: Dark Green Metallic
Cadillac Transmission Codes
TH350/M38: 3 speed automatic (Older)
TH400/M40: 3 speed automatic (Older, heavier duty)
4T65E: 4 speed automatic (Late 90’s, early 2000’s)
4L60E/M30: 4 speed automatic
6L80E/MYC: 6 speed automatic
6L90E/MYD: 6 speed automatic (Heavy duty)
8L90E/M5U: 8 speed automatic
10L80/MGM: 10 speed automatic
MN6: Manual 6 speed (ATS-V, CTS-V)
Cadillac Comfort and Convenience Codes
A31: Power Windows
A45: Memory Seats
A49: Power Seat, Left
A51: Bucket Seats
A69: Rear Seat Center Armrest
AG1: Power Driver Seat, Multi Adjustable
AG2: Power Passenger Seat, Multi Adjustable
AM9: Split Folding Rear Seat
AU0: Remote Keyless Entry
AU3: Power Door Locks
B36: Trunk Floor Covering
B4U: Cadillac User Experience (CUE)
C67: Automatic Air Conditioning
C68: Automatic Climate Control
CJ2: Automatic Air Conditioning, Dual Zone
DD8: Electrochromic Inside Rearview Mirror
DL3: Heated Outside Mirrors
KA1: Heated Driver and Front Passenger Seats
KA6: Heated Rear Seats
KB6: Heated Steering Wheel
K34: Cruise Control
NP5: Leather Wrapped Steering Wheel
N38: Tilt/Telescoping Steering Wheel
UD7: Rear Parking Assist
UG1: Universal Home Remote
Cadillac Audio Codes
UQ3: Premium Bose Sound System
UQ4: Base Sound System
UE1: OnStar System
US8: Radio, AM/FM Stereo with CD Player
UQS: Bose Surround Sound System
IOX: Cadillac User Experience (CUE) Infotainment System (IO5, IO6, etc.)
Cadillac Safety and Security Codes
AJ7: Inflatable Restraint System, Front and Side
AL0: Inflatable Restraint System, Front
AX7: Automatic Occupancy Sensing System
T96: Fog Lamps
UH8: Enhanced Vision System
UV6: Head Up Display
UV2: Rear Vision Camera
Cadillac Suspension Codes
FE1: Soft Ride Suspension
FE3: Sport Suspension
FE7: Performance Suspension
F45: Magnetic Ride Control
J55: Performance Brakes
Cadillac Wheel Codes
-
SH7: 20″ Ultra-Bright Machined Finish Wheels with Midnight Silver Accents
-
SLM: 22″ Bright Chrome Wheels
-
SMX: 22″ Multi Spoke Alloy Wheels with Polished Finish/Dark Android Gloss Inserts
-
SMI: 22″ Alloy Wheels with Dark Android Finish
-
RPW: 22″ Chrome Multi Spoke Wheels (More Generic – may vary by exact year)
-
Q6N: 18″ Alloy Wheels with Bright Silver Finish (Often standard on base trims)
-
Q75: 18″ Multi Spoke Alloy Wheels with Diamond Cut/Argent Metallic Finish
-
Q9Y: 20″ Dynamic 9 Spoke Alloy Wheels with Polished/Android Finish (Available on higher trims)
-
Q6M: 18″ 6 Split Spoke Alloy Wheels with Pearl Nickel Finish (Base trims)
-
Q7A: 20″ 12 Spoke Alloy Wheels with Polished Finish (Premium Luxury)
-
SRL: 20″ 12 Spoke Alloy Wheels with Polished/Dark Android Finish
-
Q7G: 20″ 6 Split Spoke Alloy Wheels with Polished Finish (Luxury)
-
Q7H: 20″ 6 Split Spoke Alloy Wheels with Chrome Finish (Premium Luxury)
-
Q7J: 20″ 12 Spoke Alloy Wheels with Polished/Android Finish (Platinum Package)
Other Cadillac Option Codes
T96: Fog Lamps (Still used, but often LED fog lamps)
UV2: HD Surround Vision
UV3: Surround Vision Recorder
UQS: Bose Performance Series Sound System
UH8: Enhanced Vision System (Combines thermal imaging and head up display)
V3U: Illuminating Door Sill Plates
VRG: Illuminated Front and Rear Door Sill Plates
UFT: Side Blind Zone Alert with Lane Change Alert
UKK: Rear Pedestrian Alert
UKC: Lane Change Alert with Side Blind Zone Alert
UD7: Rear Park Assist
K4C: Wireless Phone Charging
IOU/IOV/IOW/IOX: Cadillac User Experience
DLF: Outside Heated Power Adjustable Mirrors
Manufacturer Codes
| Code | Manufacturer |
|---|---|
| 1G6 | Cadillac Passenger Cars (USA) |
| 1GY | Cadillac SUVs and Crossovers (USA) |
| 2G6 | Cadillac Passenger Cars (Canada) |
Model Codes
| Code | Model |
|---|---|
| A | CT4 |
| B | CT5 |
| C | XT4 |
| D | XT5 |
| F | Escalade |
Body Type Codes
| Code | Body Type |
|---|---|
| S | Sedan |
| W | Wagon |
| H | Hatchback |
| C | Coupe |
| T | SUV |
Engine Codes
| Code | Engine |
|---|---|
| L31 | 5.0L V8 (Early to mid 90's) |
| L05 | 5.7L V8 (Early to mid 90's) |
| LT1 | 5.7L V8 (Mid-90s - Fleetwood) |
| L98 | 5.7L V8 (Late 80's to Early 90's - Allante) |
| LY7 | 3.6L V6 (Early to mid 2000s) |
| LF4 | 3.6L Twin Turbo V6 (ATS-V, CTS-V) |
| LT4 | 6.2L Supercharged V8 (CTS-V, Escalade) |
| LT5 | 6.2L Supercharged V8 (CT6-V) |
| L87 | 6.2L V8 (Escalade, Yukon Denali) |
| LTA | 2.7L Turbo I4 (Late 2010's) |
| 6.0L V8 | 6.0L V8's – Varying codes |
Plant Codes
| Code | Plant |
|---|---|
| C | Lansing Grand River, Michigan, USA |
| R | Arlington, Texas, USA |
| Y | Oshawa, Ontario, Canada |
How do I find my Cadillac option list?
Your Cadillac options list can be found:
On older vehicles: the Service Parts Identification (SPID) sticker in the glovebox, trunk, or door jamb.
On newer vehicles: scan the QR code on the driver’s side B pillar.
Online: enter your VIN into a Cadillac VIN decoder or build sheet tool to see a full list of RPO codes and installed options.
Can I use my Cadillac VIN decoder to identify rare or discontinued factory options?
Yes! A detailed Cadillac VIN decoder can show all factory installed RPO codes, including rare or discontinued options that might not be obvious by looking at the car. For example, you can confirm special trims, limited edition packages, unique wheel designs, or exclusive paint codes. This is especially useful for collectors, enthusiasts, or anyone buying a used Cadillac who wants to verify that the car truly has the advertised factory features.
How can I use a Cadillac VIN decoder to check if aftermarket modifications match the original build?
By comparing the factory options list from your VIN decoder with the current configuration of the vehicle, you can quickly spot any aftermarket changes. For instance, if your VIN shows the car came with standard wheels but it now has upgraded rims, or if the interior trim differs from the original code, you’ll know which features are factory-installed versus modified. This helps with resale value, insurance accuracy, and verifying authenticity for collectors.
Unlock accurate valuations for your car’s features in seconds – find out what your options are worth today and in the future.
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