2.0

hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
80,400 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2012 GMC Sierra 1500 electrical problems

electrical problem

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2012 GMC Sierra 1500 Owner Comments

problem #5

Apr 202021

Sierra 1500

  • 60,000 miles

A D V E R T I S E M E N T S

The contact owns a 2012 GMC Sierra 1500. The contact stated that while driving at 70-75 MPH, the vehicle inadvertently lost electrical power for 30 seconds. The traction warning light and other unknown warning lights were illuminated. The contact stated that the failure had been recurring while driving. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The approximate failure mileage was 60,000.

- Port Lavaca, TX, USA

problem #4

Jan 012021

Sierra 1500

  • 150,000 miles
Left side impact sensor loses connectivity from wires shorting out in drivers hinge area. Service air bag light comes on.

- Hutchinson, MN, USA

problem #3

Feb 082018

Sierra 1500

  • 141,000 miles
The contact owns a 2012 GMC Sierra 1500. The contact stated that while driving at an unknown speed, the RPM increased while attempting to depress the brake pedal. The contact stated that the brake pedal was firm. The gear shifter was shifted to neutral to slow the vehicle. The contact pulled over to the side of the roadway, turned off and restarted the vehicle and the vehicle operated as intended. The contact stated that several warning lights were illuminated. The contact stated that on several occasions while driving at various speeds, front and rear brakes independently activated. Additionally, the door latches locked and unlocked independently. The vehicle was taken to payne Chevrolet Buick GMC (2229 E expressway 83, weslaco, tx 78599), where the vehicle was diagnosed and the contact was informed that the ABS speed sensor needed to be replaced. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was 141,000.

- Edcouch, TX, USA

problem #2

Nov 072018

Sierra 1500

  • miles
Starting issues, ignition"dealership cant seem to find problem"happens now and then, sometimes it will start and then turn off.this only happens when trying too start vehicle.

- Parma, MI, USA

problem #1

Jun 282016

Sierra 1500 4WD

  • 51,000 miles
The contact owns a 2012 GMC Sierra 1500. While driving at various speeds, an abnormal sewage odor emitted from the air conditioning unit. The failure recurred numerous times. The vehicle was taken to a dealer where it was diagnosed that the cabin filter failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 51,000. The VIN was not available.

- Weir, MS, USA

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