NHTSA Complaint #11704477 — 2020 CHEVROLET BLAZER

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number	11704477
Vehicle	2020 CHEVROLET BLAZER
Component	ENGINE
Date of Incident	December 1, 2025
Date Filed	December 11, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	MI

Consumer Description

Thermostat/thermostat sensor and complete water outlet system replacement at only 52,377 miles. The defective part was located under the Intake Manifold requiring its removal, excessive labor cost for the repair, and potential future engine issues due to exposed/open head gasket for the repair.

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