2019 GMC Sierra 1500: Brake system failure
Common wear/failure (not a recall)
Symptoms
Owners of the 2019 Sierra 1500 report: brake system failure. CarComplaints.com lists 6 owner complaints, average mileage 5,150 miles.
NHTSA has 112 owner complaints for the 2019 Sierra 1500 in this area. Examples:
- NHTSA complaint ODI #11735386 (filed 05/03/2026): “I am getting warning signs on the dashboard saying that my brake booster performance has failed and i need to service the brake booster , the brakes are very hard to press, i need longer stopping distances,and traction control and stability control towing harn…”
- NHTSA complaint ODI #11731897 (filed 04/17/2026): “The contact owns a 2019 gmc sierra 1500. the contact stated that while driving approximately 5 mph, the rear wheels locked up. the check engine warning light was illuminated. the vehicle was taken to a local dealer, where it was diagnosed, and determined that …”
Likely causes
Sources do not establish a single root cause; diagnosis is needed. Owner-reported fixes are listed below.
Fix, in plain English
Most common owner-reported solutions on CarComplaints.com: replace master cylinder (1 reports). Check for open recalls and extended warranty coverage with a dealer before paying out of pocket.
DIY difficulty: Moderate
Pads and rotors are a common DIY job with hand tools and a jack; ABS/hydraulic faults need a scan tool. (Our assessment.)
Cost
No sourced cost range: get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
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