NHTSA Complaint #11686606 — 2023 GMC SIERRA 2500

POWER TRAIN issue reported to NHTSA

Check any vehicle history by VIN - Free vehicle history report

Complaint Details

ODI Number	11686606
Vehicle	2023 GMC SIERRA 2500
Component	POWER TRAIN
Date of Incident	August 11, 2025
Date Filed	September 11, 2025
Mileage	44,546 miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	WV

Consumer Description

The contact owns a 2023 GMC Sierra 2500. The contact stated that while driving approximately 35 MPH, the vehicle went into LIMP Mode, and the message "Service Transmission" was displayed. The vehicle was taken to the dealer, where it was diagnosed that the transmission valve body rod had failed. The valve body rod was replaced. It was unknown whether the vehicle was repaired. The vehicle remained at the dealer. The manufacturer was not notified of the failure. The failure mileage was approximately 44,546.

Related Complaints for the 2023 GMC SIERRA 2500

Other POWER TRAIN Complaints

#11713060 — January 24, 2026 — Driving at approximately 30-35MPH merging in traffic, the transmission shuttered and went into reduced power mode. EC...

#11710403 — January 12, 2026 — Summary of Issue On [XXX], my family and I departed Kansas City, Missouri, for a camping trip to Great Smoky Mountain...

#11685572 — September 7, 2025 — Bought a 2023 gmc sierra 2500 duramax. Went into limp mode took it to dealership the transmission was bad so they re...

#11684914 — September 4, 2025 — The transmission control mod is bad. This is a persistent problem and that's why it is on back order for up to a year...

#11674259 — July 17, 2025 — This issue is pertaining to the valve body in my 10-speed transmission. While I was traveling home, the truck experie...

Recent Complaints for the 2023 GMC SIERRA 2500

#11674259 — VEHICLE SPEED CONTROL — July 17, 2025 — This issue is pertaining to the valve body in my 10-speed transmission. While I was traveling home, the truck experie...

#11665263 — ELECTRICAL SYSTEM — June 6, 2025 — I rely heavily on this vehicle for my business and within 1 year of ownership, the vehicle broke down on the highway ...

#11665263 — ENGINE — June 6, 2025 — I rely heavily on this vehicle for my business and within 1 year of ownership, the vehicle broke down on the highway ...

#11661494 — SERVICE BRAKES — May 16, 2025 — When dealer took apart my rear brakes the parking brake shoe lining was un bonded from the shoe 26,000 miles and seem...

#11655217 — ELECTRICAL SYSTEM — April 17, 2025 — Shift to park message displayed while attempting to shut off engine after shifter was in the park position, accessory...