general problems of the 2012 GMC Terrain

Five problems related to air bag have been reported for the 2012 GMC Terrain. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 GMC Terrain based on all problems reported for the 2012 Terrain.

1 Air Bag problem

Failure Date: 05/16/2025

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.

2 Air Bag problem

Failure Date: 12/21/2019

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.

3 Air Bag problem

Failure Date: 03/15/2019

My service bag light came on about 1 month ago. When I took it to the dealer to check it out. They said my year is not in the recall list. They also said none of the air bags will work until it gets fixed. I am living on a limited income and cannot afford to fix the air bags. Every year before and after of GMC Terrain have been recalled. I don't understand why my 2012 has not been recalled. With this being a manufactured problem I believe GMC should pay to fix the air bags. I am afraid to take my grandchildren with me to the store.

4 Air Bag problem

Failure Date: 01/18/2018

I experiencing problems with my GMC Terrain. I have contacted my local dealer (doral GMC, in miami, FL) on multiple occasions with no response. I have submitted a written complaint to GMC on April 10th, 2012 and never received a reply. I've experienced continuous car problems since the purchase of my vehicle. Within the first 3 months of purchase my car had already been kept at the dealer for 30 days on 2 separate occasions. Vehicle problems were, for example; the airbag service light turned on, car turned off while driving on a highway, this issue was taken care of but returned several times to have it corrected as it kept happening. The vehicle also experienced transmission issues, the check engine light also kept turning on and service department couldn't figure anything out with my vehicle. This was my first GMC purchase and it has been my absolute worst experience with any american car company. The latest issue since December of 2017 has been the airbag service light once again and the stability track light. I took the vehicle in for service once again and I was charged for diagnostic service so that the issue could be found for each issue and was told I would have to pay $135. 00 per issue. I only paid for the airbag issue since it seemed to be the most dangerous one and was told by service department that the module kit needed to be replaced. This new charge was $ 823. 90 that I had to pay out of pocket. This issue seems to be a factory one and I would like to be reimbursed since this is a safety feature that should not have happened. I've never had an accident and have kept it serviced and well maintained at the dealer through out all the recalls and service problems. The reason I paid for this service was mainly for the safety of my family but once again, it's an inconvenience.

5 Air Bag problem

Failure Date: 12/05/2011

2012 GMC Terrain. Consumer states the passenger seats air bag system and construction make the vehicle uncomfortable and initially unsafe for his wife a couple of days after purchasing the vehicle, the consumer's wife used a seat cushion to conform to the seat and the they soon discovered the air bag would not engage.


Other Air Bag related problems of the 2012 GMC Terrain



Safety Ratings of Terrain Cars
Fuel Economy of Terrain Vehicles
Terrain Service Bulletins
Terrain Safety Recalls
Terrain Defect Investigations