2017 GMC Yukon brakes complaints

Filed Apr 30, 2019 · Brakes · 62,000 miles · NC · crash

Low speed break failure. In my driveway, in parkinglots, usually after having foot on break to "roll" and then stop again, no breaks, or have to put two feet down to stop. I hit a car in front of me two days ago after waiting at a red light, starting to roll because they rolled, then they stopped, and I hit the break and nothing happened. My husband has taken the car multiple times to be looked at for the breaks not working for at least 6 months.

Filed Jan 15, 2019 · Brakes · 46,000 miles · KY · crash

Have no brakes at low speed due to faulty vacuum pump

Filed Nov 21, 2018 · Brakes · 63,690 miles · TX

My husband and I were driving on the highway at 70 MPH when he needed to slow down and noticed the brakes on the yukon were not functioning properly. More specifically, the brakes would not function the first 3-4 times when they were applied or tapped, but thereafter the brakes would become hard and he had to depress the brake pedal as hard as he could but with little to no stopping ability. The 'brake assist' light came on. Had we been in any traffic or on a shorter road, we would have surely crashed into someone and it could have been catastrophic considering we live in dallas where there is a lot of traffic. This day we were very lucky! Gm had issued a service bulletin #pit5361b which affected multiple years and classes of vehicles to include the 2015 yukon. Gm acknowledged that 'a customer may comment on a hard brake pedal or that increased effort is needed to depress the brake pedal.' as evidence of the defect, gm notified its dealers, 'while performing normal diagnostics, fluid may be found in the brake booster and/or the booster vacuum line.' however, we called multiple dealerships within the dfw area and they all denied knowing any issue with gm brakes failing or the vacuum pump. Interestingly, there is a class action lawsuit on this very issue and gm also issued a series of service bulletins to its dealers regarding the brake defect, with the latest bulletin dated march 15, 2017, to include the 2015-2016 yukon. Ours is just a 2017, 1 year outside of that. Who is to say this year isn't affected considering past history of the bulletins. It was thanksgiving holiday and no dealership could even get to it besides not knowing of any 'issue', even though it's all over the internet.

Filed Sep 26, 2018 · Brakes · 42,360 miles · NJ

While coming to traffic lights to make a stop the vehicle's brake pedal begins to get harder and harder to press while losing the ability to stop the vehicle. While entering parking spaces the brake pedal will get extremely hard and lose almost all stopping power. This happened a number of times in one day resulting in a near rear-ending of another vehicle as well as hitting a curb which stopped us from entering the front window of a retail establishment.