2022 GMC Terrain engine problems

Filed Jun 23, 2026 · Engine, Fuel system · 66,000 miles · MI

The contact owns a 2022 GMC Terrain. The contact stated that while his wife was driving 35 MPH, the contact received an email and text from OnStar with DTC: P129F, and the message to not drive the vehicle was displayed. The check engine warning light was illuminated. The vehicle was taken to the local dealer, where it was diagnosed and determined that the fuel pump power control module had failed. The vehicle was repaired, but the failure reoccurred. The contact stated that the failure was related to N252516900, a General Motors (GM) emission recall related to the Fuel Pump Power Control Module (FPCM and GM safety recall N222372310 – Inadequate Fuel Pump Flow. The local dealer was contacted, who stated that the fuel pump had failed to meet higher outputs. The manufacturer was contacted and confirmed that there was no coverage on the vehicle. The failure mileage was approximately 66,000.

Filed Dec 13, 2025 · Electrical, Engine · MN

When driving vehicle, alert sounded lowered speed detection and my engine light came on. My vehicle then lagged power and it smelled like something was burning. Called dealer i bought vehicle from and i drove it in to them. I just bought the vehicle 8 months ago. I was just in to same dealer for a GPS tracker that was in my vehicle unknown to me that the Onstar stopped working and the dealer had stating they missed it in the pre certified inspection and they had to replace the telemax module do to the unknown GPS Tracker. My vehicle is now in for the lowered speed detection problem which my GM app stated it was an air induction system problem. I do not have paper work for the air induction system yet but i have sent photo of what my GM app produced.

Filed Dec 10, 2025 · Engine, Fuel system · MN

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.

Filed Oct 23, 2025 · Engine, Fuel system · SC

The car was at a red light so it automatically stopped. when the lights turned green, I removed my foot from the break and the car would not move. I had to call OnStar for roadside assistance and they called the police to make sure I was safe and that traffic flowed safely. My car was towed to the dealership after they tried to start the car by the key and my jumper cables. The car would not start. The dealership is unable to start the car as well and they are saying that the issue with the fuel pump is not under the most recent recall for my VIN number. I was able to locate the recall for the same exact issue that I’m having under my VIN number on the GMC website. I have filed a report with the GMC manufacturer to try and get this issue fixed. I have brought this car in multiple times to the dealership I purchased from and an additional dealership to show them the issues that I have been having with this car starting and stopping, I could have been ran over by a public transportation bus today.

Filed Sep 22, 2025 · Engine, Transmission · 18,200 miles · FL

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.

Filed Aug 13, 2025 · Engine · 21,000 miles · PA

The contact owns a 2022 GMC Terrain. The contact stated that upon approaching an intersection with a red light, the contact depressed the brake pedal, and the vehicle lost automotive power. The vehicle came to a stop at the light. The contact attempted to restart the vehicle; however, the vehicle failed to restart. The vehicle was towed to an independent mechanic to be inspected, and the contact was advised that the vehicle needed to be diagnosed by an authorized GMC Dealer. The local dealer was contacted; however, the vehicle was not diagnosed or repaired. The contact was advised that the VIN was not under recall. The manufacturer was notified of the failure. The approximate failure mileage was 21,000.

Filed Jun 16, 2025 · Engine, Fuel system · MA

Vehicle felt like it was running out of gas and then stalled out while driving down the road. It will not turn over and it will not move out of park. This is a huge safety issue.

Filed May 6, 2025 · Engine · 106,000 miles · CA

The contact owns a 2022 GMC Terrain. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated, and the engine seized. The contact stated that the vehicle failed to restart. The vehicle was towed to an independent mechanic, where it was diagnosed with engine failure. The vehicle was not repaired. The vehicle was then towed to another independent mechanic, where the failure was confirmed to be engine failure. The vehicle was not repaired. The vehicle was then towed to the dealer where it was also confirmed as having engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 106,000.

Filed Mar 3, 2025 · Engine, Fuel system · 76,670 miles · MO

The contact owns a 2022 GMC Terrain. The contact stated while driving in a parking lot, and the brake pedal was depressed; however, the vehicle hesitated and stalled. The vehicle failed to immediately restart but restarted after waiting for 10 minutes. The vehicle was taken to the residence. The contact retrieved DTC: P129F while using a handheld scanner. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 76,670.

Filed Jan 22, 2025 · Engine · CA

Engine failure at low mileage. 60,300 miles. Piston 1 failed. Broken rings. Needs full engine replacement. GM will not stand by their product and repair it.