One problem related to brake light on has been reported for the 2019 GMC Sierra. The most recently reported issues are listed below.
Brake system failure 62 mph top speed; brake warning light; check engine light; abs light; traction control light; steering assist is reduced - drive with care; service trailer brake system. . . . Lights on dash as noted above. Brake pedal makes a clicking; power steering non-existent; brakes will not stop vehicle without max pressure. Happened at low speed. Bumped into cart at store before gaining control. After multiple shut downs and restarts all lights normal except check engine light. Brakes occasionally makes clicking sound without touching them. Mileage 6056.
| Service Brakes problems | |
| Brakes Failed problems | |
| Brake Light On problems |