2015 GMC Sierra 1500 Brakes Problems
- Complaints
- 229about this part
- Share
- 32%of 720 total for the year
- Median mileage
- 56,100miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 229 complaints about the brakes of the 2015 GMC Sierra 1500, 32% of the 720 complaints for this model year. Where a mileage was given, the median is 56,100 miles. 15 of these say a crash was involved and 2 a fire, according to the filers. 2 recall campaigns on record are filed under a similar system.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I pushed on the brakes when slowly pulling into a parking spot and the brakes got squishy and barely stopped before I hit another parked car. This happened a few times before I got the vehicle home. Then a message popped up that said service brake assist system . I took the truck in and they said they would need to replace the vacuum pump and 2 belts.”
NHTSA complaint #11181123, filed 2019-02, 77,000 miles“At low speeds break pedal will not depress and I have a hard time stopping the truck. I almost hit a car yesterday and after doing some research found that the vacuum pump failure is a known problem. This is extremely scary and dangerous. Someone could easily hit a pedestrian. My truck has less than 50,000 miles, which seems to be the average for this problem.”
NHTSA complaint #11170697, filed 2019-01, 48,400 miles“Experienced an unusual reaction to breaking. A few days later I had brake warning lights on the dash. Took the vehicle to the dealer and they had to replace the cylinder brake master and the brake booster and add new fluid. Which I paid for. Now I see there may be other issues as there are other complaints you're investigating. I want to put mine on record.”
NHTSA complaint #11154281, filed 2018-11, 32,631 miles“While in motion the brake pedal goes hard and is difficult to stop. I believe this is the cause of a low speed incident I had earlier this year. The issue occurres mostly at slow speeds in stop and go traffic. If feels like the brake booster fails and the pedal is bottomed out. It happens frequesntly while hauling a trailer in reverse. Very dangerous situation.”
NHTSA complaint #11100297, filed 2018-06, 40,000 miles“In slow traffic today I almost slammed into the back of a car! The brake pedal went to the floor,and had a shutter feelin terrible!! This is scary and needs recalled now!! I heard it was but came up no with my VIN#?? But my year is supposed to be recalled...this needs fixed im not happy after today..”
NHTSA complaint #11365657, filed 2020-10, 91,000 milesRelated recalls
- 19V761000Oct 24, 2019General Motors LLC (GM) is recalling certain 2015-2020 Chevrolet Suburban, Tahoe, and GMC Yukon, and 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500…Covers: GMC Sierra 1500 2014–2018, Chevrolet Tahoe 2015–2020, GMC Yukon 2015–2020 +2 more
- 19V645000Sep 6, 2019General Motors LLC (GM) is recalling certain 2015-2017 Cadillac Escalade, 2014-2018 Chevrolet Silverado, GMC Sierra, 2015-2018 Chevrolet Suburban, Tahoe, GMC…Covers: GMC Sierra 1500 2014–2018, Chevrolet Silverado 1500 2014–2018, Tahoe 2015–2018 +3 more
Related service bulletins
- 11017173Mar 21, 2025This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
- 11014230Jan 31, 2025This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11011709Nov 5, 2024This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11007761Sep 13, 2024This Preliminary Information communication provides information to the technician that a customer may request the factory Integrated Trailer Brake Control be bypassed and their…
- 11007691Sep 11, 2024This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle that may have a "Check Trailer Wiring" or "Service Trailer…
- 11007686Sep 11, 2024This Preliminary information communicates an issue with the Hydrastar Electric Over Hydraulic trailer brake system causing a voltage spike into the trucks electrical system which…
- 10251685Feb 6, 2024This Preliminary Information communication provides information to the technician about fluid leaking from the brake caliper piston area found during a service of the vehicle…
Brakes: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 5 | 3% |
| 2025 | 7 | 6% |
| 2024 | 11 | 3% |
| 2023 | 17 | 3% |
| 2022 | 30 | 5% |
| 2021 | 25 | 4% |
| 2020 | 55 | 11% |
| 2019 | 114 | 17% |
| 2018 | 44 | 14% |
| 2017 | 108 | 30% |
| 2016 | 106 | 31% |
| 2015 | 229 | 32% |
| 2014 | 144 | 19% |
| 2013 | 2 | 2% |
| 2012 | 5 | 5% |
| 2011 | 6 | 2% |
| 2010 | 1 | 1% |
| 2009 | 6 | 3% |
| 2008 | 10 | 3% |
| 2007 | 25 | 10% |
| 2006 | 67 | 46% |
| 2005 | 50 | 28% |
| 2004 | 67 | 32% |
| 2003 | 105 | 58% |
| 2002 | 127 | 77% |
| 2001 | 108 | 77% |
| 2000 | 131 | 72% |
| 1999 | 103 | 65% |
| 1998 | 18 | 31% |
| 1997 | 18 | 22% |
| 1996 | 2 | 40% |
Other parts of the 2015 GMC Sierra 1500
99 complaintsElectrical system
96 complaintsExterior lighting
93 complaintsEngine
84 complaintsSteering
81 complaintsOther or unknown
67 complaintsAir bags
37 complaintsBody and structure
28 complaintsVisibility (wipers, defrost, mirrors)
26 complaintsSuspension
17 complaintsSeat belts
16 complaintsElectronic stability control
13 complaints
← All problems reported for the 2015 GMC Sierra 1500
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