GMC tools & data
By CarWhere Research · Updated
CarWhere’s GMC hub collects free research for Sierra, Yukon, Canyon and Acadia shoppers and owners: 60 trim levels from Pro to Denali Ultimate with dated base MSRPs, 47 known issues and recalls by model, 19 GM engine guides including the 5.3, 6.2 and Duramax, plus a VIN decoder and RPO codes.
GMC trucks and SUVs share their frames, engines and transmissions with Chevrolet, so most mechanical facts carry over — the engines guide covers both brands. What differs is trims, packages and equipment, which these pages lay out model by model.
Decode a GMC
Start from the VIN or the codes on the vehicle.
GM engines and transmissions
Years, GM-rated output, known problems and recalls.
GMC trim levels
Current and previous-generation trims with dated base MSRPs, engines and packages.
Buying a used GMC
What goes wrong, which years drew complaints, and how values hold up.
GMC research by model
| Model | Trim levels | Known issues | Years to avoid | Depreciation | Build sheet |
|---|---|---|---|---|---|
| GMC Sierra 1500 | Sierra 1500 trims | Sierra 1500 problems | Sierra 1500 years to avoid | Sierra 1500 depreciation | Sierra 1500 build sheet |
| GMC Sierra HD | Sierra HD trims | — | Sierra HD years to avoid | Sierra HD depreciation | Sierra HD build sheet |
| GMC Yukon | Yukon trims | Yukon problems | Yukon years to avoid | Yukon depreciation | Yukon build sheet |
| GMC Canyon | Canyon trims | Canyon problems | — | Canyon depreciation | Canyon build sheet |
| GMC Acadia | Acadia trims | Acadia problems | Acadia years to avoid | Acadia depreciation | — |
| GMC Terrain | — | Terrain problems | Terrain years to avoid | Terrain depreciation | — |
Know exactly how your GMC was ordered from the factory.
The CarWhere build sheet decodes a GMC VIN into the factory-ordered option codes (RPOs) on record for that vehicle — engine, transmission, axle and the packages it was ordered with. $9.99, instant.
Frequently asked questions
How do I find out what options my GMC has?
GM records each vehicle’s factory-ordered options as three-character RPO codes against the VIN, and prints them on the glovebox Service Parts Identification label when it is present. The original window sticker or a build sheet decoded from the VIN lists the trim, engine and packages; the free VIN decoder shows basics such as engine, body and plant.
What is an RPO code?
RPO stands for Regular Production Option. GM uses three-character codes such as Z71 (off-road package), L84 (5.3L V8) or NHT (Max Trailering) to identify the options and equipment a vehicle was ordered with.
Is my GMC affected by the 6.2L V8 engine recall?
NHTSA campaign 25V274 (2025-04) covers 2021–2024 Cadillac Escalade/ESV, Chevrolet Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon/Yukon XL with the 6.2L V8 (L87). Run the VIN through NHTSA’s recall lookup to see whether a specific vehicle is included.
Is a GMC Sierra the same as a Chevy Silverado?
They share the same frame, engines, transmissions and most mechanical parts, so engine and transmission issues and many recalls apply to both. Styling, interiors and trim names differ — GMC uses Pro, SLE, SLT, AT4 and Denali.
How do I check a GMC for recalls?
Enter the 17-character VIN on NHTSA’s recall lookup or GMC’s owner site, or ask a dealer to run it. Recall repairs are free. CarWhere’s known-issues pages list major recall campaign numbers by model and generation.
Sources
Each linked page lists its own detailed sources. The hub's figures come from these datasets and references.
- CarWhere GM engines dataset (19 engines and transmissions) — CarWhere
- CarWhere GMC trim-levels dataset (60 trims) — CarWhere
- CarWhere GMC known-issues dataset (47 issues) — CarWhere
- GM newsroom — General Motors
- NHTSA recalls and vPIC VIN decoding — National Highway Traffic Safety Administration
Independent reference compiled by CarWhere — not affiliated with or endorsed by General Motors. Chevrolet, GMC, Cadillac, Corvette, Duramax, Vortec and the model names are trademarks of their owner.