2021 GMC Sierra 2500 Brakes Problems
- Complaints
- 7about this part
- Share
- 13%of 52 total for the year
- Median mileage
- 26,024miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 7 complaints about the brakes of the 2021 GMC Sierra 2500, 13% of the 52 complaints for this model year. Where a mileage was given, the median is 26,024 miles. 1 recall campaign on record is 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.
“Seems to be a known problem according to a google search but brake fluid leaking from brake pedal onto drivers floor mat. Seems to be a bad brake booster according to google and happening for some at a few weeks to a couple months old in the newer ones. I noticed first on my truck around 58,000 miles.”
NHTSA complaint #11628813, filed 2024-12“Parking brake locking up. There is recall on the brake module for my year make and model but my vehicle isn't on the list and I feel it should be. I'm having the same issues as they are. I can't drive it until it is fixed. Very dangerous.”
NHTSA complaint #11662387, filed 2025-05“The contact owns a 2021 GMC Sierra 2500. The contact stated that on several occasions while in park(P) with the parking brake engaged, the parking brake warning light was illuminated. The contact also stated that the parking brake would not disengage until the vehicle was shifted into reverse(R). The contact stated that he observed a loud banging sound coming from the rear of the vehicle when the parking brake was finally disengaged. The vehicle was taken to a dealer where it was diagnosed that the driver’s side rear actuator needed to be replaced. The vehicle was not repaired. …”
NHTSA complaint #11557590, filed 2023-11, 51,248 miles“The contact owns a 2021 GMC Sierra 2500. The contact stated while approaching a stop sign and depressing the brake pedal, the brakes were squeaking. The vehicle was taken to the dealer and the contact was informed that the brake pads needed to be replaced. The brakes on the vehicle were replaced but the failure reoccurred. The vehicle was taken to another dealer and the caliper on the front driver’s side was replaced and the failure reoccurred. The vehicle was taken to another dealer who was aware of the issue however, there was no recall for the failure. The manufacturer was not contacted. …”
NHTSA complaint #11491956, filed 2022-11, 800 miles“The left rear internal top-hat parking brake shoes suffered a total manufacturing bonding failure, causing the friction lining to completely delaminate and detach from the metal backing plates inside the rotor hub. This triggered Diagnostic Trouble Code (DTC) C060B (Left Park Brake Actuator Circuit). The failed components were replaced by the servicing facility and are unavailable, but the official dealer diagnostic scan sheet and itemized repair invoice are preserved and available for inspection upon request. Safety was compromised in two ways. …”
NHTSA complaint #11755097, filed 2026-08Related recalls
- 21V758000Sep 29, 2021General Motors, LLC (GM) is recalling certain 2021-2022 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500, and Sierra 3500 vehicles with electronic…Covers: GMC Sierra 2500 2021–2022, Chevrolet Silverado 3500 2021–2022, Silverado 2500 2021–2022 +1 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.
- 11013242Jan 17, 2025This informational bulletin advises the technician to check for faults that may be caused by the trailer otherwise found by a possible faulty trailer connector.
- 11012938Jan 9, 2025This Preliminary Information communication provides information to the technician about customers that may request the factory Integrated Trailer Brake Controller Regular…
- 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.
- 11011018Oct 22, 2024This informational bulletin provides an optional repair using a different set of brakes that may correct the customers concern of Early Brake Wear in Harsh Environments.
- 11009463Sep 25, 2024This service bulletin provides repair information to correct customer concerns of Rear Wheel Lock Up, ABS Event, Loud Bang and a Flashing “D” on Driver Information Center (DIC)…
Brakes: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 2 | 15% |
| 2025 | 7 | 25% |
| 2024 | 16 | 15% |
| 2023 | 3 | 9% |
| 2022 | 4 | 9% |
| 2021 | 7 | 13% |
| 2020 | 13 | 16% |
| 2019 | 4 | 13% |
| 2017 | 8 | 22% |
| 2016 | 10 | 17% |
| 2015 | 5 | 6% |
| 2014 | 1 | 3% |
| 2013 | 3 | 7% |
| 2011 | 1 | 2% |
| 2010 | 2 | 20% |
| 2009 | 5 | 16% |
| 2008 | 1 | 2% |
| 2007 | 6 | 7% |
| 2006 | 30 | 45% |
| 2005 | 38 | 33% |
| 2004 | 56 | 39% |
| 2003 | 73 | 46% |
| 2002 | 78 | 58% |
| 2001 | 62 | 46% |
| 2000 | 32 | 67% |
| 1999 | 22 | 61% |
| 1998 | 8 | 53% |
| 1997 | 7 | 50% |
Other parts of the 2021 GMC Sierra 2500
13 complaintsExterior lighting
9 complaintsEngine
8 complaintsElectrical system
6 complaintsBody and structure
5 complaintsLatches, locks and linkages
4 complaintsForward collision avoidance
3 complaintsOther or unknown
3 complaintsAir bags
2 complaintsFuel system
2 complaintsBack-over prevention (rear camera)
1 complaintsLane departure
1 complaints
← All problems reported for the 2021 GMC Sierra 2500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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