NHTSA Complaint #11686239 — 2020 CHEVROLET BLAZER

POWER TRAIN issue reported to NHTSA

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Complaint Details

ODI Number	11686239
Vehicle	2020 CHEVROLET BLAZER
Component	POWER TRAIN
Date of Incident	March 1, 2025
Date Filed	September 10, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	MI

Consumer Description

Frequently when shutting off my Blazer, I will get an alert that the vehicle is not in park. I have to squeeze and jiggle the shifter in order to get the alert to go away. On several occasions, when I have turned the engine on and back off again without ever touch the gear shifter, I will get the same alert that the vehicle is not in park. If the issue is not just the sensor/switch, this could mean that the transmission could potentially fall out of park and the vehicle start to roll on its own with no one inside.

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