2012 GMC Sierra problems
NHTSA has received 46 complaints about the 2012 GMC Sierra, and 15% of them involve electrical system. Next are engine (13%) and body & structure (13%).
At a glance
- Complaints
- 46 filed with NHTSA
- Most reported
- Electrical system 15% of complaints
- Crashes and fires
- 7 and 7
- Injuries and deaths
- 0 and 0
- Typical mileage
- 25,000 miles 44 complaints with mileage
Source: NHTSA owner complaints
Where the complaints are
Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.
When problems show up
View the numbers
| Mileage | Complaints |
|---|---|
| 0k to 20k miles | 18 |
| 20k to 40k miles | 9 |
| 40k to 60k miles | 8 |
| 60k to 80k miles | 6 |
| 80k to 100k miles | 0 |
| 100k to 120k miles | 0 |
| 120k to 140k miles | 0 |
| 140k to 160k miles | 3 |
| 160k to 180k miles | 0 |
| 180k to 200k miles | 0 |
| 200k+ miles | 0 |
What the data shows
Of the 44 complaints that include odometer readings, half describe a problem before roughly 25,000 miles.
Safety-related details: 7 complaints mention a crash; 7 complaints mention a fire. Its complaints are more severe on average than those of 88% of model years in our database.
Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 2012 ranks 17th most-complained-about out of 26 model years of the GMC Sierra with enough data (45 complaints in that window). It is also covered by 2 safety recall campaigns.
What owners wrote
A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.
Vehicle was taken to GMC dealer for headlight defect and we were informed that they would have to order parts. Drove truck back to site and while truck was running but stationary smoke was observed coming from the engine compartment. When the hood was raised the entire truck became engulfed and completely burned.
Tl* the contact owns a 2012 GMC sierra k-1500. The contact stated that while driving 75 MPH, the vehicle began to decelerate as the warning lights in the instrument panel illuminated. The vehicle would not accelerate beyond 35 MPH. The failure was resolved momentarily after the vehicle was restarted but soon recurred. The vehicle was taken to the dealer, but they where unable to duplicate the failure. The failure was not reported to the manufacturer. The failure mileage was 7,000. The current mileage was 20,000.
While moving with transmission in drive, the ignition switch can be switched off. By doing so, the power steering and brakes fail to function properly. The steering wheel will lock, not allowing to steer. There have been a safety concerns with other GM products, why not this model? This is a safety concern.