Forward Collision Avoidance Related Problems of the 2023 GMC Sierra 3500

Table 1 shows two common forward collision avoidance related problems of the 2023 GMC Sierra 3500. The number one most common problem is related to the adaptive cruise control (three problems). The second most common problem is related to the warnings (one problem).

Table 1. Forward Collision Avoidance related problems of GMC Sierra 3500

Problem Category Number of Problems
Adaptive Cruise Control problems
3
Warnings problems
1

Recently reported Forward Collision Avoidance problems of the 2023 GMC Sierra 3500

The Adaptive Cruise Control problem

We’ve had issues with the electrical system/brake lights when we hook any trailer (horse/boat/utility) to the truck. One issue is that the system shows unconnected and the trailer lights blink or do not work.   Read details...

The Warnings problem

On christmas day 2025 my tailgate flies open on its own and I see my cargo flying out and a piece of it bounced off my taillight passenger side braking the taillight and then when attempting to pull over my lane departing feature try’s to correct its self and I hit the median luckily at   Read details...


Forward Collision Avoidance related problems in other GMC Sierra 3500 model year vehicles:



Sierra 3500 Service Bulletins
Sierra 3500 Safety Recalls
Sierra 3500 Defect Investigations