NHTSA Complaint #11669590 — 2020 GMC TERRAIN

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number 11669590
Vehicle 2020 GMC TERRAIN
Component ENGINE
Date of Incident
Date Filed
Mileage N/A miles
Crash No
Fire No
Injuries 0
Deaths 0
Vehicle Towed No
State PA

Consumer Description

On 6/22/2025, brakes stopped working while trying to make a turn. Next multiple engines light came and car went into reduced speed mode. As I tried to find a safe place to stop, the vehicle went into limp mode and shut down in the middle of the road. The dealership said the issue was the vacuum pump which caused the timing chains to break. There have multiple recalls for this exact issue but my car is not on the list. My manufacture warranty ended on 5/21/2025. When I spoke to a GM representative I was told there was nothing they can do because there is not a recall for my vehicle. They explained even though I had the same problem the recall is for other vehicles. GM also issued a warranty extention on the vacuum pump to 10 years 150,000 miles. However my vehicle is not on the list for the extention. this issue is a safety hazard regardless of the vehicle type. I was lucky that no one was behind me or they would have hit me.

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