NHTSA Complaint #11685156 — 2023 CHEVROLET SUBURBAN POWER TRAIN

Complaint Details

ODI Number	11685156
Vehicle	2023 CHEVROLET SUBURBAN
Component	POWER TRAIN
Date of Incident	September 4, 2025
Date Filed	September 4, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	CO

Consumer Description

Transmission malfunction. This has appeared several times at highway speeds and low speeds. We have dad to limp along in the slow lane to exit ramp and take back roads to the nearest dealership. The current problem has been confirmed with error codes P0747. The dealership has scanned this vehicle and detected error codes in the past on two different occasions and found P176C in TCM on 08/01/23 and P17D6 on 10/24/24. Check engine light comes on with a screen prompt “Reduced Acceleration Drive with Care”. The transmission valve body has already been addressed once because of triggering limp mode.

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