general problems of the 2020 GMC Terrain

Three problems related to gasoline fuel system have been reported for the 2020 GMC Terrain. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2020 GMC Terrain based on all problems reported for the 2020 Terrain.

1 Gasoline Fuel System problem

Failure Date: 06/30/2025

The contact owns a 2020 GMC Terrain. The contact stated while driving at an undisclosed speed, the vehicle lost motive power with the check engine warning light illuminated. The vehicle was towed to an independent mechanic, where it was diagnosed that the fuel pump control module had failed and needed to be replaced. The vehicle was not repaired. The dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure and referred the contact to the NHTSA hotline for assistance. The approximate failure mileage was 88,000. The VIN was not available.

2 Gasoline Fuel System problem

Failure Date: 12/04/2024

The contact owns a 2020 GMC Terrain. The contact stated that while his wife was driving 5 mph and exiting a parking lot, the vehicle inadvertently stalled. There was no warning light illuminated. The vehicle failed to restart. The messages "low battery" and "start the vehicle" were displayed. The contact stated that the brakes had seized. The vehicle was towed to the dealer, where it was diagnosed and determined that the fuel pump and the fuel pump driver control module needed to be replaced. The vehicle was being repaired. The manufacturer was notified of the failure and informed the contact that the vehicle was not covered under warranty. The failure mileage was 45,175.

3 Gasoline Fuel System problem

Failure Date: 03/18/2023

The contact owns a 2020 GMC Terrain. The contact stated that after refueling the vehicle, the vehicle failed to restart. The message "battery low - start vehicle" was displayed. The vehicle was towed to the dealer, where it was diagnosed that the fuel sensor module and fuel pump needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA campaign number: 23v013000 (fuel system, gasoline); however, the VIN was not included in the recall. The manufacturer was not made aware of the failure. The failure mileage was approximately 42,510.


Other Gasoline Fuel System related problems of the 2020 GMC Terrain

Gasoline Fuel System problems
3
Fuel Pump problems
1


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