NHTSA Complaint #11708654 — 2021 GMC ACADIA

UNKNOWN OR OTHER issue reported to NHTSA

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Complaint Details

ODI Number	11708654
Vehicle	2021 GMC ACADIA
Component	UNKNOWN OR OTHER
Date of Incident	January 3, 2026
Date Filed	January 4, 2026
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	MI

Consumer Description

My car suddenly out of the blue started overheating. By the time I could get stopped safely and turn the car off the engine fan kept running to try to cool it down. I’ve never had any issues with my car. It only has 47,000 miles on it. I now have to have it towed to a mechanic shop to get diagnosed, but I’m hearing that it’s probably a thermostat and that the GMC Acadia’s are famous for that being a problem. I’m not sure why GMC would not do a recall on this part! this is an extremely expensive fix.

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