Factory build sheet
2012 GMC Sierra Work Truck/Fleet/Base
Build 3GTP2TEA-C · 4.8L 8cyl · Four-wheel drive · Pickup
VIN positions 1 through 8 read 3GTP2TEA and position 10 reads C. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every Sierra whose VIN starts 3GTP2TEA and carries C in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 36 of them.
- Decoded Jul 7, 2026
- 36 known VINs
- 1 listed for sale now
Factory specification
As filed by GMC with NHTSA for this build. Fields the filing does not record are left out entirely — a missing row means no recorded value, not a missing feature.
Engine
- Displacement
- 4.8 L
- Cylinders
- 8
- Engine model
- L20
- Fuel type
- Gasoline
Drivetrain
- Drive type
- Four-wheel drive
Body & chassis
- Body class
- Pickup
- NHTSA body type
- TRUCK
- Series
- 1500
- Manufacturer
- GENERAL MOTORS LLC
Weight rating
- GVWR class
- Class 2E
- GVWR
- 6,001–7,000 lb
Gross vehicle weight rating is the loaded ceiling set by the manufacturer, not the car's own weight.
The same build, other model years
GMC used the VIN pattern 3GTP2TEA for 3 model years. Nothing but the year changes between these pages, so the price gap between them is depreciation on an identical car.
How this VIN pattern is read
A 17-character VIN carries two kinds of information: what was built, and which one it is. This page is the first kind — the nine highlighted positions.
| Positions | Characters | What they encode |
|---|---|---|
| 1–3 | 3GT | GENERAL MOTORS LLC · World manufacturer identifier |
| 4–8 | P2TEA | Model, body style, engine and restraint system |
| 9 | × | Check digit — computed per vehicle, not part of the build |
| 10 | C | Model year — 2012 |
| 11 | × | Assembly plant |
| 12–17 | ×××××× | Production sequence number, unique to each vehicle |
36 vehicles carry this build
Every VIN we have decoded to 3GTP2TEA-C shares the specification above.
- 36 Known VINs
- 1 Listed for sale now
- 3GTP2TEA 6CG138900
- 3GTP2TEA 2CG143530
- 3GTP2TEA 9CG208602
- 3GTP2TEA 8CG182087
- 3GTP2TEA XCG153268
- 3GTP2TEA 4CG155940
- 3GTP2TEA 2CG261514
- 3GTP2TEA 4CG125241
- 3GTP2TEA 5CG256260
- 3GTP2TEA 8CG139370
- 3GTP2TEA 1CG276361
- 3GTP2TEA 2CG158674
- 3GTP2TEA 5CG177820
- 3GTP2TEA 0CG264346
- 3GTP2TEA 7CG225124
- 3GTP2TEA 3CG144539
- 3GTP2TEA 7CG177317
- 3GTP2TEA 2CG205931
- 3GTP2TEA 5CG256856
- 3GTP2TEA 5CG283538
- 3GTP2TEA 1CG134429
- 3GTP2TEA 2CG145049
- 3GTP2TEA XCG250034
- 3GTP2TEA 4CG181499
- 3GTP2TEA 8CG123878
- 3GTP2TEA 4CG292330
- 3GTP2TEA 2CG149103
- 3GTP2TEA 9CG167890
- 3GTP2TEA 9CG222502
- 3GTP2TEA 7CG229254
- 3GTP2TEA 1CG166961
- 3GTP2TEA 8CG235712
- 3GTP2TEA 1CG268261
- 3GTP2TEA 7CG124150
- 3GTP2TEA 7CG262142
- 3GTP2TEA 0CG262984
Neighboring configurations
Other factory configurations of the Sierra, each with its own build sheet. The set is fixed by the VIN patterns themselves, so it does not shuffle as prices or inventory move.
Keep going
Where this data comes from
Specification fields are decoded from the manufacturer's filings in the NHTSA vPIC database, keyed on VIN positions 1–8 and 10. We publish the filed values as they stand and leave out anything the filing does not record.
Vehicle counts come from the 36 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.