GMC VIN Decoder, Build Sheet & RPO Code Lookup
Enter your GMC VIN below to decode your vehicle specs, then use our RPO decoder to get options, engine details, paint codes, towing packages, and the full build sheet information.
VIN Decoder & Build Sheet
Check VIN identity, factory spec, recalls, complaints, and ownership risks before you buy.
Pre Purchase VIN Check
Fuel Economy, Emissions & Running Cost
EPA fuel economy for the vehicle year and model profile.
Additional Vehicle Specs
Supplementary spec matching for output such as power, transmission, size, and weight.
Recalls, Complaints & Mechanical Failures
Model level safety and complaint data for the decoded year, make, and model.
Vehicle Ownership Insights
Platform specific reliability patterns, critical engine platform audits, and pre purchase inspection guidance.
Likely Factory Option Profile
Probability model for common package combinations around this production era.
The free scan verifies identity and surfaces early risk signals. The paid report goes deeper into what those signals mean for ownership, repairs, and buying confidence.
Unlock Full VIN Report
Article By: Dale Ogden
Dale Ogden is the founder of Check Your Spec and a trusted automotive expert with more than 20 years of experience in vehicle valuations, forecasting, and asset management. He previously served as a Forecast Manager at CAP HPI – the UK’s leading vehicle valuation authority, widely regarded as a counterpart to Kelley Blue Book. Dale helped pioneer early electric vehicle depreciation models adopted by major manufacturers, and his work has contributed residual value forecasts across more than 10,000 vehicles. Today, his practical, data led insights support buyers, enthusiasts, and automotive professionals around the world.
Table of Contents
What Is a GMC VIN and How Do You Read It?
A GMC VIN is a 17 character Vehicle Identification Number that identifies the exact truck or SUV you are looking at. A GMC VIN lookup can reveal factory specifications, engine details, trim level information, production data, and original equipment installed when the vehicle left the factory. Whether you are checking a used Sierra, Yukon, Acadia, or Canyon, decoding the VIN is one of the best ways to verify the real build sheet and factory options instead of relying on seller descriptions alone.
Positions 1 to 3 (WMI)
1GT identifies GMC as the manufacturer. This section confirms the vehicle brand, manufacturing region, and country of origin.
Positions 4 to 8 (Vehicle Details)
U9EEL contains important GMC vehicle data including body style, engine type, drivetrain, series, cab configuration, and trim information. This section is critical when performing a GMC VIN decoder lookup.
Position 9
1 is the VIN check digit. It is used to validate the VIN and helps detect invalid or incorrectly entered VIN numbers.
Position 10
P identifies the model year. This helps distinguish different GMC generations, refreshes, drivetrain updates, and technology packages.
Position 11
Z shows the assembly plant where the GMC was built. This can help confirm production origin and factory build information.
Positions 12 to 17
123456 is the unique serial number assigned to that specific GMC vehicle. No two VIN numbers are the same.
What Is a GMC Build Sheet and How Do You Get One by VIN?
A GMC build sheet is the factory record of how your truck or SUV was originally configured when it left production. It connects the VIN to the exact engine, drivetrain, trim level, RPO codes, suspension setup, towing equipment, paint color, interior trim, and factory installed options fitted to that specific GMC vehicle.
Many people searching for a GMC build sheet by VIN are trying to confirm the real specification of a Sierra, Yukon, Canyon, Terrain, or Acadia before buying it. A GMC VIN decoder can identify the core vehicle information, but the build sheet goes deeper by revealing the original factory options and RPO codes tied to that VIN.
Why a GMC Build Sheet Matters
Used vehicle listings often miss important details or incorrectly advertise trim levels and packages. A GMC build sheet helps confirm whether the vehicle actually came with features like the X31 Off Road Package, Max Trailering Package, Denali trim, adaptive suspension, locking differential, Bose audio, or factory towing equipment.
What a GMC VIN Lookup Can Tell You
A GMC VIN lookup helps identify the original factory configuration of the vehicle. This can help buyers verify authenticity, sellers confirm equipment, and owners better understand the exact specification and production details of their GMC.
A GMC build sheet typically includes:
- Factory installed options and GMC RPO codes
- Engine, transmission, and drivetrain details
- Trim level and package configuration
- Towing, suspension, and off road equipment
- Paint color and interior trim specification
- Wheels, technology, and driver assistance features
- Production details tied to that exact GMC VIN number
How to Get a GMC Build Sheet
You can usually get a GMC build sheet through a dealer VIN lookup, factory documentation sources, GM build data services, or by decoding the vehicle’s RPO sticker and factory option codes. Some GMC VIN decoder tools also provide partial build data and factory equipment information.
Build Sheet vs GMC VIN Decoder
A GMC VIN decoder is useful for identifying the basics, including model year, engine family, cab style, drivetrain, and production information. The build sheet goes further by showing the original factory options, RPO codes, towing packages, trim packages, and equipment configuration tied to that exact GMC vehicle.
The fastest way to begin is to run your GMC VIN through the decoder above. That helps confirm the vehicle identity first, then makes it easier to explore the original build sheet, RPO codes, factory options, towing equipment, and full GMC specification connected to that VIN.
What Are GMC Option Codes and RPO Codes?
GMC option codes are factory identifiers that describe the original equipment installed on a specific truck or SUV. General Motors uses RPO codes, which stands for Regular Production Option codes. These three character codes can identify engine type, paint color, axle ratio, suspension setup, towing package, trim level, wheels, interior features, technology, and other factory installed options.
What GMC RPO Codes Tell You
A GMC RPO code decoder turns short factory codes into readable equipment details. For example, RPO codes can help identify features like the X31 Off Road Package, Z71 suspension equipment, G80 locking rear differential, L87 6.2L V8 engine, LM2 Duramax diesel engine, Bose audio, trailer brake control, and factory towing equipment.
Why RPO Codes Matter
RPO codes are one of the most useful ways to build an accurate GMC options list. They help verify the original factory specification of the vehicle instead of relying only on a sales listing, badge, trim name, or dealer description.
Important Note
GMC RPO codes can vary by model year, platform, and market. Some codes also appear across Chevrolet, Cadillac, and Buick because they are all part of General Motors. Always check important equipment against your exact GMC VIN, especially for engines, towing packages, axle ratios, paint codes, and off road packages.
How to Find Your GMC Option List and RPO Codes
There are several reliable ways to find your GMC option list and factory RPO codes. The best method depends on whether you want to read the original RPO sticker yourself, access a GMC build sheet by VIN, or confirm factory installed options directly from the vehicle.
Glove Box RPO Sticker
Many older GMC trucks and SUVs have an RPO code sticker inside the glove box. This sticker contains the original factory option codes for that exact vehicle and can help identify towing packages, axle ratios, suspension options, paint codes, engine specifications, and trim equipment.
Center Console or Door Area
On some GMC models, especially newer trucks and SUVs, the RPO sticker may be located inside the center console, door jamb area, or another factory label location. Placement can vary depending on the model year and platform.
GMC Dealer VIN Lookup
A GMC dealer can often use your VIN number to access the original build sheet and factory vehicle specification. This is one of the best ways to confirm the exact RPO codes, trim packages, towing equipment, and factory installed options.
Online GMC VIN Decoder
Some online GMC VIN decoder tools can help identify factory specifications, build sheet information, and option data tied to the VIN. Results can vary depending on the quality of the database, so important equipment should always be cross checked.
OBD and Diagnostic Tools
Professional scan tools and diagnostic systems can sometimes reveal factory configuration information stored in the vehicle modules. This can help confirm certain equipment, drivetrain details, and feature related coding directly from the GMC itself.
For the most accurate GMC options list, it is best to compare the RPO sticker, VIN based build sheet information, and any available diagnostic data together. That gives you a much clearer view of the original factory specification and installed equipment.
GMC RPO Code Decoder for Factory Options and Build Sheet Lookup
Paste GMC RPO codes from your glove box sticker, center console label, or factory build sheet. This GMC RPO decoder helps identify towing packages, engine specifications, axle ratios, suspension upgrades, Denali packages, AT4 options, Bose audio systems, cameras, paint codes, and other factory installed GMC equipment.
GMC engine RPO codes Expand
- L84 5.3L EcoTec3 V8 engine
- L87 6.2L EcoTec3 V8 engine
- LM2 3.0L Duramax turbo diesel engine
- LZ0 3.0L Duramax turbo diesel engine
- LV3 4.3L EcoTec3 V6 engine
- L8T 6.6L V8 gasoline engine
- L5P 6.6L Duramax turbo diesel V8 engine
- LCV 2.5L inline 4 engine
- LGX 3.6L V6 engine
- LE2 2.7L turbocharged engine
- K47 Heavy duty air cleaner
- K05 Engine block heater
- KC4 External engine oil cooler
- KNP External transmission oil cooler
- VKC Air intake system
Notes: GMC engine RPO codes vary by model year, platform, emissions package, and market. Always verify against the VIN and factory build sheet.
GMC transmission and drivetrain codes Expand
- MHS 6 speed automatic transmission
- MQE 8 speed automatic transmission
- MHT 10 speed automatic transmission
- MYC 6 speed Hydra Matic automatic transmission
- M5U 8 speed automatic transmission
- MGL 9 speed automatic transmission
- NQH Two speed transfer case
- NQF Electronic transfer case
- NP0 Transfer case
- GU6 3.42 rear axle ratio
- GT4 3.73 rear axle ratio
- GT5 4.10 rear axle ratio
- G80 Locking rear differential
- G96 Automatic locking rear differential
GMC paint codes Expand
Organized alphabetically by GMC paint code.
- GAZ Summit White
- GBA Black
- GNO Onyx Black
- G7C Red Quartz Tintcoat
- GAN Red Quartz Tintcoat
- GLU Dark Sky Metallic
- G1W White Frost Tricoat
- GXG Dark Ash Metallic
- GB8 Ebony Twilight Metallic
- GXD Satin Steel Metallic
- GA0 Quicksilver Metallic
- GJI Cardinal Red
- G6M Pacific Blue Metallic
- GC5 Frosted Pine Metallic
- GPA Graphite Gray Metallic
GMC towing and heavy duty package codes Expand
- Z82 Trailering package
- CWM Max trailering package
- NHT Max trailering package
- JL1 Integrated trailer brake controller
- VR2 Trailer hitch platform
- Z6A Gooseneck fifth wheel prep package
- V92 Trailering wiring provisions
- VYU Snow plow prep package
- F44 Heavy duty chassis package
- F47 Heavy duty suspension package
GMC off road and suspension codes Expand
- Z71 Off road suspension package
- X31 X31 off road package
- ZL1 Off road protection package
- NZZ Underbody skid plates
- Z60 High capacity suspension package
- F46 Touring suspension
- FX3 StabiliTrak suspension package
- Y65 Magnetic ride control suspension
- Z95 Magnetic ride control
- JHD Hill descent control
- V76 Recovery hooks
- ZW9 Pickup box delete
GMC interior option codes Expand
- A50 Bucket seats
- KA1 Heated front seats
- KB6 Heated rear seats
- KI3 Heated steering wheel
- H2X Jet black leather interior
- AG1 Power driver seat
- A45 Memory seat package
- C68 Automatic climate control
- NP5 Leather wrapped steering wheel
- JF4 Power adjustable pedals
- A48 Sliding rear window
- C49 Rear window defogger
- DD8 Auto dimming rearview mirror
- UG1 Universal garage door opener
GMC infotainment and technology codes Expand
- IOS GMC infotainment system
- IOK GMC infotainment with navigation
- UQA Bose premium sound system
- U2K SiriusXM satellite radio
- UE1 OnStar communications system
- UVB HD rear vision camera
- UV2 HD surround vision camera
- UVN Bed view camera
- UVS Rear seat media system
- UV6 Head up display
- UGN Enhanced connectivity package
- UDD Driver information center
GMC safety and driver assistance codes Expand
- KSG Adaptive cruise control
- UKC Lane change alert with side blind zone alert
- UFG Rear cross traffic alert
- UHY Automatic emergency braking
- UKJ Front pedestrian braking
- UKK Rear pedestrian alert
- PCI Driver alert package
- UVC Front and rear park assist
- T4L IntelliBeam automatic high beams
- JL9 4 wheel disc brakes with ABS
GMC exterior and lighting codes Expand
- C3U Power sunroof
- DP6 Body color mirrors
- DL3 Power folding heated mirrors
- E63 Pickup box lighting
- T3U LED fog lamps
- VK3 Front license plate bracket
- BTV Remote vehicle start
GMC trim and package codes Expand
- Y86 Denali package
- AT4 AT4 off road trim
- SLT SLT trim package
- SLE SLE trim package
- TXG Elevation package
- WJP Elevation edition package
- Z88 Sport edition package
- PDO Preferred package
- PCQ Driver convenience package
- UET Enhanced driver alert package
Ready To Check Your GMC Spec?
Stop undervaluing your GMC, and never overpay again!
Instant, FREE valuations for your Audi options, features and specifications – Find out what your car is really worth with Check Your Spec!
Unlock accurate valuations for your car’s features in seconds – find out what your options are worth today and in the future.
legal policy
quick links
Subscribe to the Newsletters
Copyright © . All Rights Reserved.