NHTSA Complaint #11496216 — 2017 GMC SIERRA 1500

I purchased my vehicle in January 2022. On 11/18/22 I captured a photo across my dash stating that the trailer brake system needed to be serviced (photo attached) . This was the second time this message appeared within days. The vehicle continued to beep and flash for a long period of time clearing out my dash screen making it UNSAFE TO DRIVE. The beeping noise startled me, almost causing an accident on the freeway. I did not know what the warning meant as I wasn't towing a trailer. I wasn't towing anything and could not turn off the beeping sound or the flashing screen, in spite of hitting the dismiss button. I don't know why the message continued to go on and assuming there is an electrical shortage somewhere with the wiring. This needs to be recalled and fixed as it is a manufacturer issue. I do not have any aftermarket parts installed in this vehicle. This same alert message appeared again yesterday 12/5/22 as I was driving back from the airport. It continued for almost 2 hours while on the freeway and again I was not pulling or towing anything. I pulled over, checked my tailgate, turned off the vehicle and turned it back on and the message continued until I got home. It is very alarming and annoying and scared me. This is a big safety hazard and almost caused an accident again as the alert is very loud and flashes across, clearing out your screen, causing you to take your eyes off traffic looking ahead. This time, I was traveling in heavy traffic. Please investigate this further. Thank you