2006 GMC Sierra 2500 Brakes Problems
- Complaints
- 30about this part
- Share
- 45%of 66 total for the year
- Median mileage
- 60,000miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 30 complaints about the brakes of the 2006 GMC Sierra 2500, 45% of the 66 complaints for this model year. Where a mileage was given, the median is 60,000 miles. 1 of these say a crash was involved, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Brakes failed completely , with no warning. No warning light on the instrument panel while driving on a public road in the county. All of a sudden absolutely no brakes. Had recently hauled a car on a trailer from emporia, kansas. Was preparing to haul calves to the sale barn. Now that would have been a total disaster. Upon inspection, the brake lines are so rusted, that pinching off the line resulted in a rupture in another location. I was trying to get some braking action, so I could drive it to a repair shop. I'll have to haul it.”
NHTSA complaint #11327479, filed 2020-06, 147,000 miles“I was backing out of my driveway (down hill slope) and lost power steering and braking in my 2006 Gmc 2500hd diesel truck. I put the transmission in neutral and deployed the emergency brake to stop. The mechanic determined the power steering pump had failed and this resulted in the hydro boost failure with subsequent brake loss. After replacing the power steering pump the power steering lines split two weeks later.”
NHTSA complaint #10470033, filed 2012-08, 42,000 miles“Brake lines busted. This is a very serious problem because I was hauling a load and got extremely extremely lucky that it busted as I was pulling in driveway. I was pulling a loaded trailer with no brakes. This is a very common issue with the 2005 and 2006 2500 trucks. I can name 6 vehicles I know of in the past 6 months that this has happened too. Mechanic says it's a very serious and common issue that GM should be recalling. If I would have been at a stoplight it would have been bad. Cheap materials is the problem with these brake lines. 2006 year model is mine.”
NHTSA complaint #11317547, filed 2020-03, 150,000 miles“I have a 2006 Gmc SIERRA 2500 hd on 7/24/2013 the truck was having tires installed at a local store. They truck was brought in for a wheel alignment service by a mechanic . The mechanic showed the leak and the corrosion on the brake lines above the I beam. They said to call the dealership in town. I called my insurance company to tow the 2006 Gmc to the dealership. After the dealership discovered the problem with the rusted lines they asked for $ 1400.00 for replacing the rusted lines.”
NHTSA complaint #10532041, filed 2013-07, 52,050 miles“I purchased the 2006 2500hd diesel pickup new. The truck has had poor braking since new and the dealer has always said it functions normally. I have had the dealer do all the maintenance on the truck other than oil and filter changes. The undercarriage of the truck including all lines, brakes rotors, hubs has been rusting since new. The underside of the truck looks like a 20 year old plow truck. On 12-6-2012 I was driving on the highway in traffic and the experienced a complete brake failure. …”
NHTSA complaint #10487941, filed 2012-12, 138,000 milesRelated service bulletins
- 10242252Aug 18, 2023This technical bulletin provides information and a solution to a condition of Brake Pedal Moves or Self Applies at Full Turns.
- 10226382Oct 18, 2022This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its…
- 10162149Jun 24, 2019This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its…
Brakes: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 2 | 14% |
| 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 | 6 | 7% |
| 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 2006 GMC Sierra 2500
12 complaintsSteering
10 complaintsTires
6 complaintsEngine cooling
5 complaintsElectrical system
4 complaintsAir bags
3 complaintsFuel system
2 complaintsSuspension
2 complaintsLatches, locks and linkages
1 complaintsBody and structure
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaintsWheels
1 complaints
← All problems reported for the 2006 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