Problems · by component
2012 GMC Terrain air bags problems
27 owner complaints to NHTSA about the 2012 GMC Terrain cite air bags, 7% of all 370 complaints for this model year.
Complaints
27
7% of all complaints
Crashes
17
Reported by owners
Fires
1
Reported by owners
Injuries
14
Reported by owners
What owners say about the air bags
Verbatim from NHTSA complaints, newest first
“The contact owns a 2012 GMC Terrain. The contact stated that while the vehicle was parked in the garage, the front driver's side air bag unexpectedly deployed without an impact to the vehicle. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was 148,116.”
“TL* THE CONTACT OWNS A 2012 GMC TERRAIN. THE CONTACT STATED WHILE DRIVING 35 MPH, WHEN TWO VEHICLES IN FRONT OF HIM CRASHED. THE CONTACT STATED HE DEPRESSED THE BRAKE PEDAL BUT THE VEHICLE FAILED TO STOP AND REAR ENDED THE VEHICLE IN FRONT. THE AIR BAGS DID NOT DEPLOY. THE CONTACT SUSTAINED A FRACTURED STERNUM DUE TO THE SEAT BELT AND WAS TAKEN TO THE HOSPITAL AND STAYED OVER NIGHT. A POLICE REPORT WAS FILED. THE VEHICLE WAS NOT DRIVABLE. THE VEHICLE WAS TOWED TO IMPOUND LOT. THE VEHICLE HAD NOT BEEN DIAGNOSED OR REPAIRED AS OF YET. A DEALER WAS NOT CONTACTED. THE MANUFACTURER HAD NOT BEEN INFORMED OF FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 136,000. *DT”
“TL* THE CONTACT OWNS A 2012 GMC TERRAIN. THE CONTACT STATED THAT WHILE THE VEHICLE WAS DRIVING AND ON OCCASIONS WHILE STOPPED, THE SERVICE AIR BAGS MESSAGE WAS DISPLAYED ON THE INSTRUMENT PANEL INTERMITTENTLY. THE CONTACT STATED THAT THE PASSENGER'S SIDE AIR BAG WAS INOPERABLE WITH THE AIR BAG WARNING LIGHT REMAINING ILLUMINATED. THE VEHICLE WAS TAKEN TO TWO UNKNOWN DEALERS HOWEVER, WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER HAD NOT BEEN INFORMED OF FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 126,000.”
“ON FEB 10, 2020 I WAS INVOLVED IN A SIDE IMPACT CRASH WHEN A LARGE TRUCK FAILED TO STOP AT A RED LIGHT. I TOOK THE VEHICLE IN FOR REPAIRS AS THE FRONT QUARTER PANEL AND WHEEL WERE DAMAGED. THE COLLISION SHOP CALLED TODAY AND STATED THAT ALL FOUR OF MY IMPACT SENSORS ARE "DEAD". HE SAID I WAS VERY LUCKY BECAUSE THERE IS NO WAY I WOULD'VE KNOWN THAT MY AIRBAGS WOULDN'T HAVE DEPLOYED AND I VERY LIKELY WOULD'VE BEEN SERIOUSLY INJURED OR KILLED. THERE WAS NO WARNING LIGHT ON THE DASH, AND NO CODE. THEY FOUND IT BY ACCIDENT ON A MORE INTENSIVE DIAGNOSTIC. THIS IS SCARY BECAUSE HOW MANY OTHER 2012 TERRAIN OWNERS WON'T KNOW UNTIL ONE OF THEIR LOVED ONES ARE INJURED OR KILLED!?!? YOU NEED TO DO SOMETHING ABOUT THIS. I GOT LUCKY BUT YOU HAVE NOW 23 COMPLAINTS ABOUT THESE BAGS NOT DEPLOYING. PLEASE DO SOMETHING!!!”
“TL* THE CONTACT OWNS A 2012 GMC TERRAIN. THE CONTACT STATED WHILE DRIVING ABOUT 35 MPH, THE VEHICLE WAS REAR-ENDED BY ANOTHER VEHICLE. THE DRIVER'S AIR BAG BUSTED OPEN, SMOKED AND EMITTED DEBRIS BUT DID NOT DEPLOY. THE SERVICE AIR BAG LIGHT ILLUMINATED. THE CONTACT AND A NINE-YEAR OLD CHILD IN A BOOSTER SEAT, IN THE BACK SEAT OF THE VEHICLE SUSTAINED INJURY THAT REQUIRED MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS DAMAGED AND WAS DRIVEN TO THE CONTACT'S RESIDENCE. THE CONTACT ALSO STATED THAT THE DRIVER'S SEAT BELT DID NOT RETRACT. THE CONTACT CALLED THE STAN MCNABB CHRYSLER DODGE JEEP RAM DEALER, LOCATED AT 200 N. JACKSON ST, TULLAHOMA, TN 37388 AND WAS TOLD THAT THE INFORMATION WOULD BE ENTERED IN THE CONTACT'S FILE. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 125,000.”
“RECENT PROBLEMS WITH MY 2012 GMC TERRAIN ALL-WHEEL-DRIVE PVC VALVE CAUSED REAR MAIN SEAL TO CONSUME OIL AND GASKET BLEW OUT DRIVERS SEAT WILL NOT MOVE FORWARD OR BACKWARDS VISOR ON DRIVERS SIDE WILL NOT STAY UP ALSO ELECTRICAL PROBLEMS”
Showing 6 of 27 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 28, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.