Complaint 2239140
2023 GMC YUKON XL • FORWARD COLLISION AVOIDANCE: WARNINGS • incident Aug 17, 2026
- Complaint ID
- 2239140
- Make
- GMC
- Model
- YUKON XL
- Model Year
- 2023
- Component
- FORWARD COLLISION AVOIDANCE: WARNINGS
- Incident Date
- Aug 17, 2026
- Date Received
- Aug 25, 2026
- Data As Of
- Sep 1, 2026
Complaint Summary
FORWARD COLLISION AVOIDANCE: WARNINGS
Owner Narrative
On August 17th, 2026 while approaching a nature preserve entrance at approximately 1 mph, my 2023 GMC Yukon Denali Ultimate suddenly accelerated on its own, without the driver pressing the accelerator pedal, striking a split-rail fence and a tree. Airbags did not deploy. The front collision system didn't issue any alerts about the fence and tree. A GM software update had been installed a couple of days before this incident . In the weeks prior, the vehicle had also intermittently failed to hold side mirror position and periodically failed to deploy the power running boards. I request that GM and NHTSA investigate a possible link between the recent software update and an unintended acceleration event, potentially related to the adaptive cruise control or another driver-assist/body control module.
Owner-submitted narrative on file with NHTSA. Complaint narratives are self-reported and have not been verified.