The contact owns a 2023 gmc yukon xl. The contact stated while driving 86 mph in the middle lane, the vehicle shut off on five occasions. The vehicle was restarted, the steering column was locked, and the brake pedal was depressed but failed to respond. The contact stated that the rear axle had disengaged. The suspension leveling system had failed. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed that there was an electrical failure. The vehicle was not repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was 39,000.
The contact owns a 2020 gmc yukon. The contact stated while driving 10 mph, the vehicle lost motive power and stalled. There was no warning light illuminated. The vehicle was not able to be restarted. The vehicle was towed to the dealer where it was diagnosed that the bearing in the driveshaft was worn. Additionally, the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 107,000.
Driver seat automatically adjusts while driving particularly when i accelerate from a red light or stop sign. This causes me to not reach the peddles. I have to pull over and reset my seat. Has been doing this for two days. My vehicle is not equipped with the automatic memory seat. My two rear seatbelts in the middle row are always lose they do not retract. This has been going on for a couple of months.
The vacuum pump seized causing the breaks to not work, brake assist not working code shows. The pump was replaced and after a week the same issue happened (vacuum pump seized) breaks are not working again.
Windshield wipers periodically fail to operate when turned on. This is but extremely dangerous because it's been impossible to determine what the cause is. When the wipers stop working, i adjust the speed from the intermittent settings to lo and hi and there is no change. I can turn the rainsense setting to off and there is no change. The wipers stop working and then after a few minutes, will turn back on. I have taken the vehicle to the multiple gmc dealers for service and they cannot diagnose the problem because it only occurs periodically. They refuse to change parts in an attempt to fix it. I have called gmc customer care and their response is "take it to another dealer". I have showed the videos i have captured of this dangerous situation and the dealers don't care. I have the videos and can share (but this site doesn't allow upload of videos). This is extremely dangerous. The wipers have cut out at highway speed in torrential downpour multiple times.
On several occasions, have noticed the brakes failed to operate properly when vehicle is at low speed. The pedal becomes extremely hard to push and there is almost no braking power. This has occurred in stop and go traffic and nearly caused an accident.
Urgent appeal for investigation into braking capacity discrepancy dear national highway traffic safety administration (nhtsa),i am reaching out to bring a critical matter to your attention regarding the braking capacity of my diesel vehicle, which has not been adequately addressed despite multiple notifications to the service center. The primary concern i wish to highlight is the inadequate braking capacity of my diesel vehicle, which poses a significant safety risk. This concern is especially troubling when compared to my similar gas-fueled vehicle from the same manufacturer, which exhibits notably superior braking performance. After discussing this matter with the service center, their response was that the braking performance is considered normal for my diesel vehicle. However, the evident disparity in braking effectiveness between my diesel vehicle and the gas-fueled one suggests otherwise. This difference is particularly concerning given that both vehicles utilize the same brake system, despite the diesel vehicle's higher weight. In light of these circumstances, i urgently request nhtsa's intervention to investigate this matter promptly. The inadequate braking capacity of my diesel vehicle presents a tangible risk to road safety, affecting not only myself but potentially all drivers on the road. It is crucial that corrective measures are taken swiftly to address this issue and ensure the safety of all drivers. Your prompt attention to this matter is greatly appreciated. Thank you for your immediate action.
The contact owns a 2020 gmc yukon xl. The contact stated that the steering wheel was increasingly wobbly and was pulling 3-4 inches to the right or to the left, and the vehicle was difficult to steer while driving. The vehicle was taken to an independent mechanic, where it was diagnosed that the rack and pinion had failed and needed to be replaced. The mechanic contacted an unknown dealer, and the dealer informed the mechanic that the part to repair the vehicle was not available. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 107,000.
Steering will all of a sudden feel disconnected. Feels like truck is sliding, till i move the wheel, then it feels connected again. Very weird feeling. This only seems to happen on the highway at highway speed. Witch is the part that worries me. This happens at least once every time on on the highway.
It's been a known fact and on social media there has been many complaints, why is there nothing being done. This vehichle has a water or moisture problem which goes to the electric connectors and makes the vehichle go in to derate mode and only code it throws is peddle position sensor. Which i have changes, and still no fix, as other connectors that are going to the electronic board removed, and it has corrosion. This is clearly a safety risk and it literally puts in a mode where a truck is not drivable.