One problem related to abs brake fail has been reported for the 2019 GMC Sierra 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2019 GMC Sierra 1500 based on all problems reported for the 2019 Sierra 1500.
Brand new truck with less than 1250 miles on it! abs brakes failed. Forced to drive on dangerous grade down sierra nevadas with very limited braking. Message not to drive over 62 mph. Error code c0580 abs braking and stability system, issue with abs and error code p25a2 ecm engine system - engine & transmission not performing as expected. Other codes includec2a17, u0100 u026a & u0415. GMC knows about the problem and they have possible fix but is not issuing a recall. Dealer indicates reprogramed the brake system control module. War code 28yn28687675. Cleared the dtc and roadtest. Found the lights did not come back on and the brack system is working ok (just "ok") now. Also, GMC will not confirm the problem will not reoccur again.