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BrakesPart report

2015 GMC Sierra 2500 Brakes Problems

Complaints
6about this part
Share
7%of 90 total for the year
Median mileage
108,987miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the brakes of the 2015 GMC Sierra 2500, 7% of the 90 complaints for this model year. Where a mileage was given, the median is 108,987 miles. 2 of these say a crash was involved and 1 a fire, according to the filers. 2 recall campaigns on record are filed under a similar system.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I was driving in my city and the brakes were fine prior. I was coming up to a stop sign and all of the sudden my brake pedal was going to the floor. I could not stop within reason. Luckily no one was in the crosswalk or I would have hit them. I used the e-brake and my exhaust brake to help so me slow down. I was doing about 35mph. I took the truck home immediately as safe as I could. I called the GM dealership by me and took it to them. They are only a few miles away and I took back roads to avoid trouble. …”

NHTSA complaint #11339900, filed 2020-07, 108,987 miles

“Electric trailer brake control modular is malfunctioning on my 2015 GMC Sierra Denali 3500. Multiple of sources told me this is a common problem with this generation of GMC.”

NHTSA complaint #11604778, filed 2024-07

“The contact owns a 2015 GMC Sierra 2500. The contact stated that while driving 55 MPH uphill, the vehicle went into LIMP Mode and the vehicle hesitated. A dealer contacted. The vehicle was taken to a dealer and was diagnosed with brake booster failure. The brake booster was replaced and the vehicle was repaired. The manufacturer was notified of the failure and informed the contact that the vehicle was not under recall. The approximate failure mileage was 131,208.”

NHTSA complaint #11774246, filed 2026-10, 131,208 miles

“Wife and daughter took the pickup to town. While returning home wife noticed a noise from the front end. She slowed down to turn and the whole tire with rotor came off the pickup causing the brake line to get ripped off and stating a fire. Damaged the running board and rocker panel along with the cv axle and other numerous parts.”

NHTSA complaint #11458567, filed 2022-03

“Press the pedal feels soft vehicle slightly slows then pedal pressures up and truck instantly stops pedal stays hard for a long time having same issue on 15 tahoe”

NHTSA complaint #11510446, filed 2023-03

Related recalls

Related service bulletins

Brakes: other model years

YearComplaintsShare of year
2026214%
2025725%
20241615%
202339%
202249%
2021713%
20201316%
2019413%
2017822%
20161017%
201567%
201413%
201337%
201112%
2010220%
2009516%
200812%
200767%
20063045%
20053833%
20045639%
20037346%
20027858%
20016246%
20003267%
19992261%
1998853%
1997750%

Other parts of the 2015 GMC Sierra 2500

Exterior lighting
26 complaints
Fuel system
12 complaints
Electrical system
11 complaints
Other or unknown
8 complaints
Transmission and drivetrain
8 complaints
Engine
7 complaints
Visibility (wipers, defrost, mirrors)
6 complaints
Steering
4 complaints
Air bags
3 complaints
Seat belts
3 complaints
Wheels
3 complaints
Suspension
2 complaints

← All problems reported for the 2015 GMC Sierra 2500

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology