GMC Sierra 2500 owners have reported 3 problems related to integrated trailer brake control (under the electrical system category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of GMC Sierra 2500 based on all problems reported for the Sierra 2500.
The contact owns a 2024 GMC Sierra 2500. The contact stated while towing a trailer and driving down a hill approximately 40 mph, the integrated trailer braking system error message displayed, and trailer braking system failed to activate. The vehicle was later taken to the local dealer who was unable to replicate the failure and failure was found. The dealer later informed the contact that solar panel system on the trailer might have caused the integrated trailer braking system to malfunction. The contact stated that after turning off the solar panel system the failure persisted. The cause of the failure was not yet determined. The manufacturer was not contacted. The failure mileage was 800.
When I connect my 2024 GMC Sierra 2500hd to my camping trailer that has a solar panel and solar charge controller, it causes the factory-installed brake controller inside the truck to malfunction. The trailer brakes connect and disconnect 4 times a minute sending alerts to my dashboard. This is dangerous. My trailer weighs up to 14,000 pounds and would have to rely solely on the truck brakes to slow to a stop. Gm put out a document 6379278 / #23-na-113 "information on trailer brake disabled or dtc stored". However, there is no fix. The GMC dealer said they can't find the service bulletin?! please make this issue a recall. I bought this truck to exclusively tow a trailer and now I can't.
The contact owns a 2024 GMC Sierra 2500. The contact stated that while driving at an undisclosed speed, the trailer brakes deactivated independently. The contact stated that the failure occurred while the contact was towing a trailer. The contact stated that the failure was persistent. The vehicle was taken to the dealer. The vehicle was not diagnosed; however, the trailer brake control module was replaced. The failure reoccurred. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 1,001.
| Problem Category | Number of Problems |
|---|---|
| Electrical System problems | |
| Instrument Panel problems | |
| Wiring problems | |
| Ignition Switch problems | |
| Dashboard Failed problems | |
| Battery problems | |
| Dash Wiring problems | |
| Instrument Panel Failure problems | |
| Integrated Trailer Brake Control problems | |
| Underhood Wiring problems |