While operating the vehicle, the radio went to full volume on its own. Attempts to turn it down did not work. The radio turned down, when the buttons on the steering wheel were pressed, but turned back up faster than I could turn it down. The power button on the radio also didn't work. I tried pushing it and then tried pushing and holding it down for a few seconds. I had to end up grabbing my phone and shutting the Bluetooth off on the phone to get it to stop. Very unsafe and distracting. It has been documented in a forum where others have had the issue as well. It is the new infotainment system and appears to be a software bug. Here is a link to a forum where others have had the same issue. https://www.gm-trucks.com/forums/topic/260308-2022-refreshed-sierra-audio-issue-max-volume/

- Great Falls, MT, USA

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/

- Mount Pleasant, SC, USA

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.

- Peyton, CO, USA