2025 GMC Sierra 1500: Service Brakes complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 7 owner complaints for the 2025 GMC Sierra 1500 that list the service brakes component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11768518 (filed 10/02/2026): “Electronic braking system failure. vehicle was put in limp mode with a top speed of 62 mph. vehicle had very little or no braking . vehicle has less than 13,000 miles . i am the original owner.…”
- NHTSA complaint ODI #11764636 (filed 09/16/2026): “Turned on vehicle and an alert popped up "brake system control module malfunction", limited speed to 43 miles per hour, no power breaks worked. i have had no issues with brake system for the first 11k miles. i contacted my local gmc dealership (banks chevrolette in concord, nh) and was told that i…”
- NHTSA complaint ODI #11763693 (filed 09/11/2026): “I was driving in town when all lights on the dash lit up, and i mean all of them. i was approaching a traffic light in low traffic in the 20-30mpg range. i went to apply the brakes and almost had none. if i was going to estimate how much braking was available, it would be in the 10% range. i drove a…”
Likely causes
These complaints do not establish a single root cause; read the examples above and get a diagnosis.
Fix, in plain English
No single fix is established by these reports. Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer about technical service bulletins (TSBs) or extended warranty coverage, then have the system diagnosed.
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 for this issue. Get a written quote after diagnosis.
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