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2012 GMC Sierra 1500 problems

The most common problem on the 2012 GMC Sierra 1500 is airbags, typically around 73,000 miles. It has fewer complaints than a typical Sierra 1500 model year.

Fewer complaintsAmong the best years of this model
Year score
88/100
Owner complaints
107
Recalls
3
Service bulletins
892
Worst area
Airbags
Fuel economy
15-21mpg

The worst 2012 GMC Sierra 1500 problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Airbags
    42
  • Body
    21
  • Electrical
    8
  • Engine
    7
  • Transmission
    6
  • Brakes
    5
  • Driver assistance
    5
  • Suspension
    4
  • Fuel system
    3
  • Steering
    3
  • Wheels
    3
  • Seat belts
    2
  • Acceleration
    1
  • Visibility
    1

Specific symptoms reported on the 2012 GMC Sierra 1500

Airbag light 6

Recalls 3

Air bags: frontal: passenger side: inflator moduleReported February 5, 2021 · 284,645 vehicles affected
What is wrong
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, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands or "Zone A." These vehicles are equipped with non-desiccated passenger frontal inflators containing phase-stabilized ammonium nitrate (PSAN) propellant. These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.
Risk
An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.
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. Second notification letters will be mailed once the remedy is available. Owner notification letters were mailed on May 11, 2021. Owners may contact Cadillac customer service at 1‑800‑458‑8006; Chevrolet customer service at 1‑800‑222‑1020; and GMC customer service at 1‑800‑462‑8782. GM's number for this recall is N212328770.

Recall number 21V051000 · Recall details

Air bags: frontal: passenger side: inflator moduleReported February 5, 2021 · 1,778,128 vehicles affected
What is wrong
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 A." Additionally GM is recalling certain 2011-2014 Cadillac Escalade, Escalade ESV, Chevrolet Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 2500, Sierra 3500, Yukon, Yukon XL and 2011-2013 Cadillac Escalade EXT, Chevrolet Avalanche, Silverado 1500, and GMC Sierra 1500 vehicles originally sold, or ever registered, in the states of AZ, AR, DE, DC, IL, IN, KS, KY, MD, MO, NE, NV, NJ, NM, NC, OH, OK, PA, TN, VA, and WV or "Zone B." Additionally, GM is recalling certain 2010-2014 Cadillac Escalade, Escalade ESV, Chevrolet Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 2500, Sierra 3500, Yukon, and Yukon XL and 2010-2013 Cadillac Escalade EXT, Chevrolet Avalanche, Silverado 1500, and GMC Sierra 1500 vehicles originally sold, or ever registered, in the states of AK, CO, CT, ID, IA, ME, MA, MI, MN, MT, NH, NY, ND, OR, RI, SD, UT, VT, WA, WI, and WY or "Zone C." These vehicles are equipped with non-desiccated passenger frontal inflators containing phase-stabilized ammonium nitrate (PSAN) propellant. These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.
Risk
An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.
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. Second notification letters will be mailed once the remedy is available. Owner notification letters were mailed to 40 VIN owners on May 11, 2021. A second owner notification letter was mailed to all other owners on January 24, 2022. Owners may contact Chevrolet customer service at 1‑800‑222‑1020; Cadillac customer service at 1‑800‑458‑8006; and GMC customer service at 1‑800‑462‑8782. GM's number for this recall is N212328800.

Recall number 21V054000 · Recall details

EquipmentReported April 26, 2018 · 6,154 vehicles affected
What is wrong
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. These extinguishers may become clogged, preventing the extinguisher from discharging as expected or requiring excessive force to activate the extinguisher. Additionally, in certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable. For a full list of the affected fire extinguisher models visit:
Risk
In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.
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. Owners may contact Chevrolet customer service at 1‑800‑222‑1020, GMC customer service at 1‑800‑462‑8782, and Isuzu customer service at 1‑866‑441‑9638. GM's number for this recall is 18146.

Recall number 18V267000 · Recall details

See all 3 recalls for the 2012 GMC Sierra 1500

Defect investigations

Pedestrian alert soundsOpened January 27, 2023, closed August 7, 2023

the federal safety agency 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 under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, the federal safety agency opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified the federal safety agency he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by the federal safety agency regarding the subject matter of the petition.

DP22005

Desiccated Air Bag Inflator RuptureOpened September 17, 2021, still open

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. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.

EA21002

Technical service bulletins for the 2012 GMC Sierra 1500 892

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

See all 892 bulletins for the 2012 GMC Sierra 1500

2012 GMC Sierra 1500 fuel economy

Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.

EngineDriveCityHighwayCombined
6.0L 8‑cyl HybridRWD202321
6.0L 8‑cyl Hybrid4WD202321
5.3L 8‑cylRWD1521-2217-18
4.3L 6‑cylRWD152017
5.3L 8‑cyl4WD152117
4.8L 8‑cylRWD141916
4.3L 6‑cyl4WD141816
4.8L 8‑cyl4WD131815

What 2012 GMC Sierra 1500 owners say

Most recent owner complaints, unedited.

Filed Aug 11, 2026 · Brakes, Driver assistance · NM

June 29, 2025, Driving on the St. Francis loop in Amarillo, TX, brake lights start flashing, the warning sounds happening, no brakes. I had already slowed down to 35-45 mph due to road construction ahead. I weaved through the cones and as soon as possible, hit the ditch and then coasted to a stop. (I didn’t think about the emergency brake, in my panic.) I turned the vehicle off and called my husband. I decided that I wasn’t pulled over far enough over in the ditch, so I started the pickup again. The lights and warning signals for the brakes were gone and when I pressed on the brake pedal, there were brakes again. I drove home at 35 mph, knowing I could use the emergency brake at that speed, if needed, and had brakes all the way home. GMC Bender repaired truck. After driving approximately 3 miles since repaired, our daughter took the truck to Grease Monkey. She was at the garage door; employee said the pickup didn't need an oil change. She backed out and didn’t have brakes (no warning lights or sounds) and as the truck continued backing, it hit the Grease Monkey sign at the east end of their lot and broke it, knocked the sign over. An employee walked over to see what happened, she told him that she didn’t have brakes. He sat in the pickup seat and pushed on the brakes and said, yes, you don’t have brakes! The police were called, and the officer who showed up took pictures, gave us his card, talked with my husband and talked to the Grease Monkey boss. August 6, 2025, I called GMC Bender Service Department (11 mins. 8 secs.) I told them what had happened. They sent a tow truck to bring the pickup back to their shop. September 16, 2025, my husband texted me saying GMC Bender said that the pickup shows another EBS Modulator Fault. No new parts… used one would be $1293 installed. A week to get it here, no guarantees. There's more details, but the vehicle cannot be repaired to guarantee brakes will work properly. Please help us know what to do next.

Filed May 22, 2026 · Suspension, Transmission · WV

They should be responsible for repairs or replacement of the cheap made frames that rust away so fast so u ain’t gotta worry about your truck fallling apart going down the rd and the lower control arms made of cast that rust from inside out and you don’t know until breaks while driving along with camber adjustments where they can throw alignment out with a single bump. Mostly the frame replacement is major always having to plate frame or check to make sure it will be able travel long trips or haul stuff in bed or a trailer with breaking or falling off truck causing wreck frame repair is major and time consuming if you don’t have proper stuff and definitely expensive and lower control arms that’ll make a wheel come real fast and it’s time consuming and expensive too but very dangerous and breaks and causes damage right then and there at high or low speed on highways or interstates

Filed Jan 15, 2026 · Transmission · 20,000 miles · MN

The contact owns a 2012 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the transmission unexpectedly downshifted, especially between second and third gears. The check engine warning light was intermittently illuminated. In addition, the contact stated that the engine felt as though the engine mounts were inoperable. The contact pulled over to the side of the road and turned off the vehicle. The vehicle was restarted, and the vehicle resumed normal driving. The vehicle was taken to the dealer; however, no cause for the failure was found. The vehicle was not repaired. The contact stated that the failure persisted. The manufacturer was made aware of the failure, but no assistance was offered. The failure mileage was approximately 20,000.

Filed Aug 21, 2025 · Electrical · 243,000 miles · SC

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.

Filed Apr 3, 2025 · Electrical, Engine · WV

P0521 has been addressed/replaced almost nine (9) times. “Low Oil Pressure-Stop Engine” is another one that is not completely functional. The truck is using oil but we cant find evidence of leakage. Services performed at dealership or certified shop. Troubleshooting was performed, Im told. I cant vouch for the quality of the workmanship. This should not be an issue at this mileage 100,100 ohe hundred thousand miles and oil components going bad is not good. GMC has sold me a truck that needs a new engine component. Please help. Thanks [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 4, 2024 · Airbags · 312,000 miles · OK · crash · 1 injury

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. The vehicle was towed to the contact's home and an independent mechanic was able to repair certain parts of the vehicle to make it drivable. The manufacturer was notified of the failure and a claim was filed. The contact was also informed that an inspector would be sent to inspect the vehicle. The vehicle had been repaired. The failure mileage was approximately 312,000.

Filed May 28, 2024 · Acceleration, Brakes · WV

Faulty Tire Pressure Management system. Looking for recalls or service bulletins.

Filed Mar 18, 2024 · VA

Manufacturer interior defect - Crack on dash w/potential to crumble all the way in Diminishes vehicle

Filed Mar 11, 2024 · WI

Frame rot behind gas tank truck doesn't even have 90000 Miles on it unsave to drive poor frame quality

Filed Dec 14, 2023 · Body · NY

Major major frame and wheel well rust , ever one I see is exactly the same , I live in upstate ny and yes we use salt but I've done a lot of research and the problem is country wide , please do some things this isn't right , I'm not trying to get a new free truck , just not get screwed out of the one I have cause it will fail inspection soon

Used buying checklistWhat to check on a 2012 GMC Sierra 1500 before you buy

Compare the 2012 GMC Sierra 1500

Sierra 1500 vs Ford F-150Sierra 1500 vs Chevrolet Silverado 1500Sierra 1500 vs Ram 1500Sierra 1500 vs Toyota TundraSierra 1500 vs Nissan Titan

Other model years

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Questions about the 2012 GMC Sierra 1500

Is the 2012 GMC Sierra 1500 reliable?

Owners have filed 107 complaints about the 2012 GMC Sierra 1500, fewer than a typical Sierra 1500 model year.

What is the 2012 GMC Sierra 1500 year score?

The 2012 GMC Sierra 1500 scores 88 out of 100 (good). The score compares it with the other model years of the GMC Sierra 1500: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.

What is the most common problem with the 2012 GMC Sierra 1500?

Airbags, with 42 complaints, typically around 73,000 miles. Next is body (21).

How many recalls does the 2012 GMC Sierra 1500 have?

3 recalls, covering air bags and equipment.

Was there a recall on the 2012 GMC Sierra 1500 airbags?

Yes, 2 recalls: 21V051000, 21V054000. Check your VIN to see if your car still needs the free repair.

What year does the GMC Sierra 1500 have bad airbags?

The GMC Sierra 1500 model years with the most airbags complaints are 2008 (243 complaints), 2007 (146 complaints) and 2009 (122 complaints).

What gas mileage does the 2012 GMC Sierra 1500 get?

Official estimates for the 2012 GMC Sierra 1500 range from 15 to 21 mpg combined. The most efficient version (6.0L 8-cyl hybrid, RWD) gets 20 city and 23 highway.

Share your experience with the 2012 GMC Sierra 1500

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