general problems of the 2016 GMC Sierra

The contact owns a 2016 GMC Sierra. The contact stated that while reversing into a parking space and attempting to stop the vehicle, the brake pedal required an excessive amount of effort in order to bring the vehicle to a complete stop. The vehicle returned to normal functionality, but the failure became a regular occurrence. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA campaign number: 19v645000 (service brakes, hydraulic); the VIN was included, and the vehicle was repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 63,000.

Apparently, the 8 speed automatic transmission has issues with wiring harness and hard shifting which the manufacturer has 18 service bulletins out on yet still will not recall and fix problems. Also the brake system is faulty and unsafe it loses pressure and even braking at various speeds. After taking it to the dealership they can not figure out why and say it is various parts and should be recalled but it is not as of yet. Gm knows of these issues and the 1000s of dollars customers have to pay for these repairs. This is wrong and needs to be rectified.

Tl-the contact owns a 2016 GMC Sierra denali 1500. The contact stated that while the vehicle was being reversed at under 5 mph, the brake pedal was depressed but failed to operate as intended. The contact crashed into a tree which caused damage to the passenger's side door, fender and side mirror. There was no injuries. The vehicle was taken to van buren Buick GMC located at 2257 jericho turnpike, garden city park, NY 11040, (516) 535-9508, to be diagnosed which was still pending. The vehicle was not repaired. The manufacturer was contacted and informed of the failure. The approximate failure mileage was 78,000. Ah.

The brakes did not work at slow speed going forward or in reverse.

At 44,972 miles I began to experience loss of braking at slow speeds (10-15 mph) on multiple occasions. The brake pedal lost its spongy feel and felt hard and dead. No matter how much pressure I applied to the brake pedal, my truck continued to roll forward. It was a scary feeling to lose control of the vehicle especially because I had my 10 year old daughter in my truck the first time it happened. I had to depress my emergency brake to bring the vehicle to a stop. I pulled the truck over and turned off and on the ignition and the brake pedal regained its spongy, normal pressure and feel. The brakes felt normal for about a week or so and I felt maybe it was an isolated incident until the same problem occurred when I was driving home from work in city stop and go traffic. I was driving about 5-10 mph trying to come to a stop behind the car in front of me when the truck continued to roll forward. I barely had enough time to depress the emergency brake to stop and came very close to hitting the car in front of me. It would have been at very low speed, but nonetheless a collision. I took the truck to the dealer to have the problem checked out and ended up having to replace the vacuum pump assembly for $656. 50, parts and labor. I definitely feel this is a valid safety issue that deserves investigating and doing either a safety notice to vehicle owners that could be effected or a recall. Had I known about the potential issue I would have been better able to deal with it. It really shook me up the first time it happened. I didn't feel safe driving the truck even 10 feet afterwards.

On several occasions I have had difficulty with the braking system. The braking system becomes unresponsive after pumping the brakes a few times. On several occasions I've had the brake peddle pushed to the floor in an attempt to stop the vehicle. This seems to happen mostly at slow speeds, a good example is when you are in a traffic jam and are primarily using the brakes to edge forward and stop.

Looses brake assistance in parking lot and sometimes on the highway,check engine light comes on with various codes the most common is misfire on startup it happen in different occasions.