NHTSA Complaint #11662243 — 2021 CHEVROLET SUBURBAN

POWER TRAIN issue reported to NHTSA

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Complaint Details

ODI Number	11662243
Vehicle	2021 CHEVROLET SUBURBAN
Component	POWER TRAIN
Date of Incident	March 10, 2025
Date Filed	May 20, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	MS

Consumer Description

While driving at normal highway speed, the vehicle speed is suddenly reduced and it feels and sounds like the transmission has shifted into low gear. The following warning light activated: Reduced Acceleration Drive with Care. The GM dealership service center stated that the transmission control valve body needed to be replaced. They indicated that this was a known issue. I believe a safety recall should be issued for this defective part.

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