BrakesPowertrain (other)
Filed Oct 29, 2026
While driving, I was getting ready to turn into the left lane then I noticed the brake pedal was hard as a rock so I immediately pulled over into a community. I knew it was safe I could barely stop the vehicle because the brake pedal was not giving at all, but eventually, I was able to stop I believe if the terrain wasn’t uphill, I wouldn’t have been able to stop my husband came and assisted with driving the vehicle to the dealership at a very low speed and hazard lights, which was about 20 miles away. This was very scary, but we made it since then the dealership has diagnosed it and it has something to do with brake assist power pump failure, which is documented in a class action lawsuit in Michigan with the same exact problem I’m in the process of getting it fixed down to the camshaft still waiting on final expenses, which I’m sure will be in the thousands we contact the GM to try to get some help with the repairs and they offer us a $350 to help out only if our all change record are acceptable not acknowledging the faulty mechanism power vacuum pump that created all of this
- NHTSA ID
- 11774393
- Incident
- Oct 25, 2026
Fuel systemPowertrain (other)
Filed Aug 9, 2026
The car suffered a long crank, then stalled completely while moving on a public road, which is a severe safety hazard.
- NHTSA ID
- 11755736
- Incident
- Aug 8, 2026
Powertrain (other)
Filed May 13, 2026
The contact owns a 2022 GMC Terrain. The contact stated that while driving 45 MPH, the vehicle began to shake independently. No warning light illuminated. The vehicle was taken to the dealer where it was diagnosed that the front drive axel needed to be replaced. The contact was relating the failure to Technical Service Bulletin: 20-NA-227 (wobble or vibration during hard acceleration); however, the VIN was not included in the bulletin. The manufacturer was notified of the failure, and they informed the contact there was no recall for the failure. The failure mileage was 64,000.
- NHTSA ID
- 11737569
- Incident
- Apr 13, 2026
- Mileage
- 64,000 mi
Powertrain (other)
Filed Feb 2, 2026
SUVs check engine light turned on and went into reduced power mode, it has been very cold for approximately a month. Code P0299.
- NHTSA ID
- 11714993
- Incident
- Jan 29, 2026
EngineFuel systemPowertrain (other)
Filed Dec 10, 2025
The car went into limp mode while I was on the highway. The car said reducing engine power and then I couldn't go the speed limit I had to drive well under the speed limit and pull off the road as soon as possible. I brought it home and water came pouring out the intercooler after looking online. I found out this is a known issue for this vehicle.
- NHTSA ID
- 11704199
- Incident
- Dec 9, 2025
Fuel systemPowertrain (other)
Filed Oct 17, 2025
The contact owns a 2022 GMC Terrain. The contact stated while driving approximately 5-10 MPH, the vehicle stopped independently, and the gear shifter failed to shift to neutral(N). A dealer was contacted. The vehicle was taken to the dealer where it diagnosed and determined that the fuel pump power control module needed to be replaced. The fuel pump power control module was replaced, and the vehicle was repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 12,777.
- NHTSA ID
- 11694106
- Incident
- Oct 16, 2025
- Mileage
- 12,777 mi
Other / unspecifiedPowertrain (other)Suspension
Filed Oct 16, 2025
Front drivers side wheel makes a clicking/popping noise when turning to the right.
- NHTSA ID
- 11693908
- Incident
- Sep 30, 2025
EnginePowertrain (other)
Filed Sep 22, 2025
The contact owns a 2022 GMC Terrain. The contact stated while driving approximately 25 MPH, the vehicle stalled, and the contact was unable to pull over to the side of the road. The contact stated that the message "Battery Critically Low" was initially displayed, and then the message "Engine and Transmission System - Schedule Service Now" was displayed. The contact was assisted by Police Officers in redirecting traffic away from the vehicle to prevent a crash. The contact stated that the tow truck driver inspected the battery and informed the contact that the battery was in good condition. The contact stated that the vehicle failed to shift to neutral(N), which required a special tow truck to tow the vehicle. The vehicle was towed to the residence and was then towed to the dealer the same day. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 18,200.
- NHTSA ID
- 11688829
- Incident
- Sep 22, 2025
- Mileage
- 18,200 mi
Powertrain (other)
Filed Mar 27, 2025
The contact owns a 2022 GMC Terrain. The contact stated that while the vehicle was idling, there was while smoke coming from the exhaust pipe. The vehicle was taken to the dealer and was diagnosed with oil intrusion into the pistons, causing transmission failure. The contact was informed that the transmission needed to be replaced. The dealer changed the oil and advised the contact to return every two thousand miles. On a separate occasion, the contact stated that while her husband was driving at various speeds, the vehicle hesitated and jerked. There were no warning lights illuminated. The contact stated that the failure had progressively worsened. The manufacturer was not notified of the failure. The failure mileage was 18,686.
- NHTSA ID
- 11651184
- Incident
- Feb 22, 2025
- Mileage
- 18,686 mi
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.