My husband and son were involved in an almost fatal accident on 07/08/23 in our 2018 Terrain. My husband described that the vehicle spontaneously veered to the right uncontrollably, he was unable to steer to correct the vehicle, unable to brake, they went airborne, hit several poles and a transformer, rolled and flipped several times. All the airbags deployed.After the accident, I found a recall notice from back in 2017, I believe, regarding the drive train. My husband was extricated from the vehicle. My son wasble to cut the seatbelt and crawl out the window. From what my husband explained (he was the driver), this sounds like what they experienced during the collision. I never received a recall letter from GM as this is something I would of taken care of and have got repaired. Please see the photos and the recall I found. Please let me know if there is anyone else I need to contact regarsing this collision.My car was almost paid off. My husband and son could of lost their life. Please advise. Thank you!

- Elkhart, IN, USA

1. 2018 Terrain would not start in a parking lot. Remote was used after several attempts to start with push button failed, and after a slight hesitation, engine started. Vehicle was driven about 6 miles without incident. 2. Vehicle was driven about 10 miles the next day and start/stop engaged at a stop light but would not restart. After about 3 minutes of cycling throught the starting procedure, the vehicle started. Drove another 8 miles without incident. 3. Next morning, drove about 3 miles to intersection where start/stop engaged but would not restart. After about 30 minutes of cycling through starting procedure and an attempt to jump start was made the vehicle restarted. At this point, the vehicle was taken to Romain GMC for service. A new battery was installed and other related operations.After about 10-15 miles, the vehicle would not start. Remote was attempted but it would not start. After about an hour, vehicle started and was driven back to Romain avoiding the stop/ start engagement.

- Evansville, IN, USA

Catalytic converter failed when driving damaging the engine. Vehicle undrivable and waited for repair at shop for over 90 days. Engine warning light keeps coming on with error code P1186 that the GMC dealer can not fix.

- Newberg, OR, USA

Yesterday morning I noticed a smell of gas around my car. I looked and didn-??t see anything. I drove to work. Once I got back to my vehicle after work I could smell gas as I approached my vehicle. I looked under my car and noticed a puddle of gas. I went to the gas station to put enough fuel for me to make it home in my vehicle and as I was putting the gas I noticed a drip under the vehicle. Once I got home and parked my vehicle I looked under the car and there was a rapid and steady drip coming from the fuel tank. The same make, mode and year of my vehicle has been recalled for this.

- Erath, LA, USA

Screen went black and warning chimes and seat vibration did not go off when backing up. Had to file a claim with insurance to fix my dented bumper. I also experience issues with the audio buttons on the steering wheel. I am not able to change the song in I am on apple play and there is always a delay when changing radio stations.

- Webster, TX, USA

My vehicle has been making a noise every since the day of purchase. It started as a vague sound and has since gotten worse. The noise is coming from the rear exhaust. At certain speeds of travel the noise gets worse. I have done a visibility check of the rear exhaust pipe and noticed the assembled exhaust where it was welded is loose and shaking. I'm not for sure if this is where the noise is coming from but it could use some investigation. I purchased my vehicle with no mileage about 5 months ago from hennessy GMC in morrow Georgia.

- Morrow, GA, USA

Leaking diesel fuel line while running, parked and in gear. Second diesel Terrain fleet vehicle to leak fuel; other colleague had the same issue recently and was asked if someone cut the fuel line. Now, mine is leaking.

- Greenwood, IN, USA

This car, a 2018 GMC Terrain is equipped with auto start / stop, a standard feature that turns off the engine when brake is applied, such as at a stop light. The engine turns off while briefly stopped at a stop sign. This is dangerous and a safety issue. While attempting to pull into a traffic lane with the engine off, I have experienced an unsafe lag before the engine restarts. GM has stated, the engine can be turned back on by removing your foot briefly from the brake pedal. Seriously "?" while behind another vehicle, I will not follow this procedure. I have no confidence the engine will restart and lunge forward, striking the vehicle ahead. I want GM to provide the capability to provide the driver the ability to enable or disable auto start / stop. The feature is also touted as saving fuel while stopped. Perhaps a tiny amount while at a long light or train crossing. Certainly not at a stop sign or stopped behind another vehicle.

- Atherton, CA, USA