Travelling down the highway 69 MPH with my wife and three small children when the dash flashed multiple error codes, engine speed limited to 62 MPH, and brakes essentially went out. Was able to get safely stopped. Contacted dealership and they advised shutting it off for 20 min and it would "reset". It did not reset and we refused to drive it in such unsafe circumstances without adequate brake function etc. Gmc roadside assistance came and towed it away. Could have resulted in much worse outcomes and we are thankful no one was injured. Very nervous to drive it again after we get it back, not knowing if it will malfunction again.
2021 GMC Yukon brakes complaints
Page 2 of 2: complaints 11 to 12 of 12, newest first, as owners wrote them.
Driving approx. 62 MPH on a highway, went to slow down and unable to brake, upon pushing down on the break there was resistance, after pumping the breaks multiple times I was eventually able to slow down with a lot of force. Messages on dashboard read "brake system failure" "62 max speed ESC, service ESC, service trailer break system, and forward collision system unavailable." ABS, ESC and check engine light all illuminated on dash screen.
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