NHTSA Complaint #11665308 — 2020 CHEVROLET BLAZER

STEERING issue reported to NHTSA

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Complaint Details

ODI Number	11665308
Vehicle	2020 CHEVROLET BLAZER
Component	STEERING
Date of Incident	June 1, 2025
Date Filed	June 6, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	PA

Consumer Description

The blazer's check engine light came on and I had it scanned. The code was PO128 indicating that the engine coolant temperature is consistently below the thermostat regulating temperature. We are also getting a message on the vehicle that states the steering assist is reduced, drive with care. The car is also blowing hot air when the AC is on, the temperature gauge is staying at the lowest setting and the fans are running full blast. This seems to be a very common problem with the Chevrolet Blazer.

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#11715931 — February 5, 2026 — Engine showing PO128 code. Steering Assist System reduced power. Engine fan constantly running. Engine temp on dash i...

#11713538 — January 27, 2026 — The driver information center suddenly indicated steering assist disabled, temperature gauge drops to below cold, air...

#11711479 — January 16, 2026 — Action required steering assist reduced and coolant temperature at 0. Air con blowing hot and check engine light on. ...

#11709700 — January 8, 2026 — 1) Part that failed per General Motors Chevrolet dealer was the Thermostat along with Coolant Sensor. 2) I was getti...

#11706697 — December 23, 2025 — There seems to be a constant problem with the service driver assist error code popping up and check engine light comi...

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