2018 GMC YUKON XL Electrical System Problems

We just purchased this vehicle from Winegardner GMC in Prince Frederick, MD. On [XXX} on our drive home from the dealership, we kept hearing a terrible screeching/ clucking noise coming from the rear when we were braking or applying any pressure to the brake pedal. We instantly contacted the dealership and they had us bring the vehicle back the next morning for them to look at and to make the repairs but unfortunate for us. They do not have the parts in stock, so we have to take it back Tuesday, October 8 , 2024 at 8am and leave it for the day. Hoping it is repaired correctly with the new parts “both rear calipers” As I left the dealership, I was approximately 10 miles away and out of no where my dash displayed “service, trailer, brakes”, constantly along with a loud dinging noise for the rest of the drive...

Annunciations: Stabilitrak, Park Assist Off, Steering Assist Is Reduced Drive With Care, Forward Collision System Unavailable, Adaptive Cruise Control. Indications: Cruise Control doesn’t work, steering jerks when turning, difficult to turn into parking spaces. Research shows Technical Service Bulletin 18-na-161as a known issue with GMC products. Dealer says “You are out of warranty”. 2018 model with 65,000 miles. Issue has been presenting for the past 8 months. We thought it was due to a windshield replacement by Safelite. Safelite has been actively troubleshooting for 8 months.

I was involved in a traffic collision. A large vehicle turned left in front of me and I t boned that vehicle. We were traveling about 30-35 MPH at the moment of impact. My vehicle sustained major damage ($20,000+) to repair according to the body shop. My wife, daughter and myself sustained injuries. My wife and I have significant injuries. I truly believe, based on vehicle damages, and injuries that our airbags should’ve deployed. I believe it has a fault sensor that should be inspected.