Most common 2012 GMC Sierra 1500 problems
Share of the 107 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
GMC Sierra 1500 complaints by model year
Best Sierra 1500 years: 2012, 2013. Years to avoid: 2024, 2023, 2022, 2021, 2019. Compare all years →
2012 GMC Sierra 1500 recalls (3)
Air bags › Frontal › Passenger side › Inflator module
General Motors, LLC (GM) is recalling certain 2012 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Silverado 1500, Silverado 2500/3500, Suburban, Tahoe, GMC Sierra 1500, Sierra 2500/3500, Yukon, and Yukon XL originally sold, or ever registered, in the states of Alabama, California, Florida, Georgia, Hawaii,…
Remedy: GM will notify owners, and dealers will replace the front passenger air bag inflator with an alternate one, free of charge. Interim letters notifying owners of the safety risk were mailed on February 22, 2021.
Air bags › Frontal › Passenger side › Inflator module
General Motors, LLC (GM) is recalling certain 2014 Cadillac Escalade, Escalade ESV, Chevrolet Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 2500, Sierra 3500, Yukon, and Yukon XL vehicles originally sold, or ever registered, in the states of AL, CA, FL, GA, HI, LA, MS, SC, TX, PR, AS, GU, the MP, and VI or "Zone…
Remedy: GM will notify owners, and dealers will replace the front passenger air bag inflator with an alternate one, free of charge. Interim letters notifying owners of the safety risk were mailed on February 25, 2021.
Equipment
General Motors LLC (GM) is recalling certain 2009-2014 Chevrolet Silverado HD and GMC Sierra HD, 2009 GMC Topkick 5000, 6000, 7000 and 8000 Series and Isuzu F Series, and 2009-2018 Chevrolet Express, and GMC Savana vehicles, equipped with certain Plastic-Handle Fire Extinguishers or Push Button 'Pindicator' Fire Extinguishers.
Remedy: GM will notify owners, instructing them to contact Kidde to get a replacement fire extinguisher, free of charge. The recall began June 11, 2018.
NHTSA defect investigations
Federal safety investigators have looked into 2 possible defects involving the 2012 GMC Sierra 1500:
Desiccated Air Bag Inflator Rupture
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited.
Pedestrian alert sounds
NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles.
What 2012 GMC Sierra 1500 owners say
Air bags all 42 →
The contact owns a 2013 GMC Sierra. The contact stated that while driving at 70 MPH, she lost consciousness. After regaining consciousness, the contact discovered that the vehicle had crashed into two vehicles and that the driver's side air bag had deployed. The police and paramedics arrived at the scene; however, no one involved in the accident needed immediate medical assistance. A police report was filed. About a week after the accident, the contact stated that they began to develop open sores on both arms as black metal fragments began to leak out of these sores. The contact went to the doctor and was treated for the injuries and was referred to a dermatologist for further assistance. Upon investigation, the contact linked her injuries to the Takata air bag recall. …
Takata recall. The contact owns a 2012 GMC Sierra 1500. The contact stated that the air bag warning light was illuminated. The contact took the vehicle to the local dealer, where it was diagnosed with needing the passenger's side air bag to be replaced. The vehicle was not yet repaired. The contact stated she later received notification of NHTSA Campaign Number: 21V051000 (Air Bags) however, the part to do the recall repair was unavailable. The contact took the vehicle to the local dealer and it was confirmed that the part was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. VIN tool confirms part not available. The failure mileage was approximately 220,000.
Body & structure all 21 →
The contact owns a 2012 GMC Sierra 1500. The contact stated that after the vehicle was taken to an independent mechanic for unrelated repairs, it was diagnosed that the frame needed to be replaced due to rust. The vehicle remained with the independent mechanic while awaiting the repair. The manufacturer was made aware of the failure and informed the contact that the warranty had expired. The failure mileage was 129,181.
The contact owns a 2012 GMC Sierra 1500. The contact stated that during a vehicle inspection, the contact was informed that the sub frame was severely corroded with holes. The vehicle was taken to an independent mechanic, who determined that the sub frame needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 100,000.
Electrical system
Odometer Fraud. The contact purchased a 2012 GMC Sierra 1500. The contact stated that it was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the mileage was 111,000, and at the time of registration, it was discovered that the mileage was 243,000. The Carfax Report indicated that the vehicle was serviced at 149,000 and 179,000 miles, then registered at 149,000 and 179,000 miles on August 8, 2024. The contact had filed a police report with the Dillon Police Department -Special Ops Police Department.
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.
2012 GMC Sierra 1500 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 6.0L 8-cyl hybrid | CVT | RWD | 20 / 23 / 21 |
| 6.0L 8-cyl hybrid | CVT | 4WD | 20 / 23 / 21 |
| 5.3L 8-cyl | 6-speed automatic | RWD | 15 / 22 / 18 |
| 4.3L 6-cyl | 4-speed automatic | RWD | 15 / 20 / 17 |
| 5.3L 8-cyl | 6-speed automatic | 4WD | 15 / 21 / 17 |
| 4.8L 8-cyl | 4-speed automatic | RWD | 14 / 19 / 16 |
| 4.3L 6-cyl | 4-speed automatic | 4WD | 14 / 18 / 16 |
| 4.8L 8-cyl | 4-speed automatic | 4WD | 13 / 18 / 15 |
| 6.2L 8-cyl | 6-speed automatic | RWD | 13 / 18 / 14 |
| 6.2L 8-cyl | 6-speed automatic | 4WD | 12 / 18 / 14 |
EPA ratings. Class: Full-size pickup.
Frequently asked questions
Is the 2012 GMC Sierra 1500 a good car?
Based on 107 owner complaints filed with NHTSA, the 2012 Sierra 1500 rates average: 34% fewer complaints than a typical year of the Sierra 1500 at the same age. It is one of the best Sierra 1500 years by this measure. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2012 GMC Sierra 1500?
The air bags — 42 complaints, 39% of all complaints for this model year, most often about frontal. Next are the body & structure (21) and electrical system (8).
How many recalls does the 2012 GMC Sierra 1500 have?
There are 3 recalls for the 2012 GMC Sierra 1500, the most recent from February 5, 2021 (inflator module). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the GMC Sierra 1500?
The best years by complaints, compared at the same age, are 2012 and 2013. Years to avoid or approach with caution: 2024, 2023, 2022, 2021 and 2019. See the full GMC Sierra 1500 years comparison.
At what mileage do 2012 GMC Sierra 1500 problems happen?
The median mileage reported in complaints is about 60,000 miles; 27% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.