2022 GMC SIERRA 1500 Complaints

I have owned this GMC Sierra now for 4 weeks. I went to trailer our new boat and trailer with EOH braking system and during my ride home I would a Trailer brakes disabled pop up then finally stayed on and lost all braking to the trailer. Trailer was check and all good then found out that many others with GMC Sierras and Chevy Silverados had had this issue now for the past 3-4 months with GM still not having a solution yet we all have defective and very dangerous vehicles losing all braking with the trailer due to this issue. They need to be pressured to get this fix ASAP before someone dies. Here is the forum with many others complaining about this issue. https://www.gm-trucks.com/forums/topic/260521-2022-silverado-faulty-trailer-brake-controller-and-buggy-camera-when-trailer-connected/

The braking on this vehicle is dangerous! Very poor stopping power. I’m am frightened to tow a trailer behind the vehicle because of its extremely poor stopping distance. This is so bad that I think there must be some sort of design error or something. Someone needs to look into this.

New vehicle purchase on 10/17/2022. Attempted to tow 7300 lb travel trailer on 10/21/2022. When tow began DIC warning message said “TRAILER BRAKE DISENGAGED. SERVICE REQUIRED” Trailer is 2023 Airstream with no brake failure. Disabled trailer brakes not safe to operate. GMC Dealer acknowledged the failure but unable to fix.

After leaving my truck parked for a couple of hours over dinner I returned to find error messages stating "Service Power Steering / Drive With Care" and "Service ESC". I also received a notification from OnStar stating "Diagnostic Alert: Service the Antilock Braking System in your 2022 Sierra within 1 day." My power steering was non-functional, nor were any cruise control functions. Repeated stop / start cycles did not clear the errors or regain functionality. After parking overnight everything was functional, and the errors on the DIC were gone. Using a code scanner there were historical codes of U0131 and U0422.

Reference GMC PIT5948A : Service Trailer Brake Message with DTC C159C - October 6, 2022. When I connect my trailer that has trailer brakes the system recognizes my trailer and the trailer brakes work until I try to drive. I get an error message "Trailer Brakes Disabled Service Trailer Brake System". This may happen within a few feet or the longest is about a mile. GMC has no fix and the dealer while cooperative didn't/couldn't trouble shoot the problem as the above PIT has no known corrective action. Now I own a truck that has the "Max Trailer Package" that is rated to pull 13000 lbs but has no trailer brakes. I have eliminated my new trailer as the source of the problem by making a Trailer Brake Emulator, see PIT #5509H Diagnostic Tip. The error continues to happen. This puts myself and the public at risk if the trailer is heavily loaded.

The integrated trailer brake system errored and disabled during transport of a 5,000 pound trailer. There was a complete loss of trailer brakes. The problem has been reproduced by the dealer and the manufacturer informed. The warning was displayed at the time of the component failure.

Vehicle is equipped with a max trailering package and includes an integrated brake controller. Trailer brakes become disabled within 1-2 brake applications. A "Check trailer brakes" warning is displayed on the DIC followed by a "Trailer Brakes Disabled" alert. GM has issued a Bulletin No. PIT5948. Currently there is no work around or fix for the problem.

The forward collision assist and lane keep assist are suddenly not working. This seems to be a software or eletrical issue.

Truck has the safety package on some point stop working bring the truck to the dealer but they don’t know how to figure out I need help with this.

The engine shut off completely at a traffic light and didn’t start when I pressed the gas pedal to move. It has auto start to save gas and normally starts and stops at lights. This time, the car shut off completely, and I had to completely cycle through starting the car. I almost got rear ended because I took my foot off the brake to drive, and then nothing happened when I pressed the gas.