NHTSA Complaint #11700067 — 2020 CHEVROLET BLAZER

POWER TRAIN issue reported to NHTSA

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Complaint Details

ODI Number	11700067
Vehicle	2020 CHEVROLET BLAZER
Component	POWER TRAIN
Date of Incident	November 13, 2025
Date Filed	November 18, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	TX

Consumer Description

Steering assist reduced message followed by check engine light came on and temperature gauge not moving from cold. Immediately took it to the dealership Hiley Chevrolet in Rockwall, TX. After $250 for diagnostic, failed thermostat is the cause and $1216 repair cost. Known issue that Chevrolet issued special coverage for 2021 Blazers, but none for 2020. My vehicle has a little more than 51,970 miles. Same vehicle just had battery replaced two weeks ago at same dealership and no other issues showed up during diagnostic then.

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