Which parts fail
Components named in complaints (service brakes, ABS, rotors and pads, parking brake).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2007 GMC Sierra 1500 owners, lightly cleaned up (personal details are redacted by NHTSA).
I went to a local recycle business to drop off some cans. Upon entering the building at about 10 MPH, this guy motion me to stop and walked in front of the truck. I hit the brakes and the peddle almost went to the floor, but did stop. Just missing the guy that walked in front of me. Realizing that a brake line broke and that the dealership wasn't far away, I drove really slow to get there. I left it over the weekend. Monday they found that the brake line that runs from front to rear rusted and burst. $ 463. Later I took the truck home. After crawling under the truck when I got home, I noticed more brake and fuel lines with allot of rust. I applied some paint that's supposed to slow down corrosion. I'm glad I wasn't on the highway with my grand kids in the truck. Or worse, the fuel lines could break. I believe there should be a recall on the brake and fuel lines. …
Rusted out brake line at 72000 miles. What a disappointment but it doesn't look like I am the only one. Its a shame GM doesn't man up and correct the problem of rusted out brake lines. Luckily I was in front of my house when it failed and not running down the road pulling my 4000 lb. Boat. And yes I have read all the info online about the nhtsb investigating this problem and let GM off the hook by saying owners should wash their cars to remove the road salt that caused this problem. I guess Ford and Dodge owners crawl under their trucks in the winter and do this as there was no investigation on them. By the way I live in tn where winters aren't that bad. And one other thing what marketing buzz saw decided it would be better not to have a split brake fluid reservoir so at least I would have 1/2 of my system, had no brakes front or rear because of this.
Tl* the contact owns a 2007 GMC Sierra 1500. The contact stated that the vehicle experienced a loss of braking ability. While driving various speeds, the contact was able to stop the vehicle by using the emergency brake. The failure occurred without warning. The vehicle was towed to the mechanic where it was diagnosed that the brake lines were defective and needed to be patched. The vehicle was repaired; however, this was the third instance of the failure occurring on the vehicle. Wildcat Chevrolet (5525 hopkinsville rd, cadiz, ky) was contacted and confirmed the failure, but the vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 80,000.
While following other normally traveling vehicles downhill - vehicles in front came to a stop - brake peddle was fully depressed...no response...brake fully applied 2nd time...no response...resulting in a rear end collision multiple vehicles...possible total of my 2007 Sierra. Damages are very extensive . Insurance to investigate GM brake possible cause....airbag deployed chest & neck injuries....many other incidents involving GMC brake systems. Need immediate NHTSA investigations !! This could have caused a fatality.
While driving vehicle, complete brake failure occurred. No traffic on road was able to coast to stop without accident. Quick inspection showed severe brake fluid leak. After towing, repair shop found ruptured hydraulic brake line due to corrosion, and multiple other similar weakened spots. All hard lines replaced. Manufacturer declined warranty assistance. Of note, vehicle purchased new, with no heavy duty use, nor high mileage. Original parts in my possession for verification.
Tl* the contact owns a 2007 GMC Sierra 1500. While driving various speeds, the ABS warning indicator illuminated. The vehicle was not taken to the dealer. The vehicle was not diagnosed or repaired. The VIN was not included in NHTSA campaign number: 05V379000 (service brakes, hydraulic). The manufacturer was contacted at [phone] and stated that the VIN was not included in the recall. The failure mileage was 82,983.
Tl* the contact owns a 2007 GMC Sierra 1500. While attempting to drive forward, the brakes would erroneously active while the vehicle was in motion. The contact also indicated that the check engine sensor light activated and remained illuminated. The cause of the failures was not diagnosed. The vehicle was not repaired. The manufacturer was not notified. The failure mileage was 170,000.
I lost my brakes while driving. The brake pedal went to floor. Took it to GMC dealer where purchased and was told it was corroded brake lines which had to be replaced.$1300 total cost. No brake warning light ever appeared!!! No other rust/corrosion was visible on truck body except for brake lines. Was told this was an issue of all GMC/chev. Trucks from that time span.
Tl* the contact owns a 2007 GMC Sierra 1500. While driving 50 MPH, the front brakes independently stopped working and there was smoke coming from the front brakes. There were no warning indicators illuminated. The vehicle was not diagnosed or repaired. A local dealer and the manufacturer were not made aware of the failure. The failure mileage was 217,385.
Brake lines failed on my 2007 GMC 1500 and my 2007 GMC 2500. It appears to be a common problem with GMC vehicles from 2003 to 2009. Why wasn't these vehicles recalled for this. I was told that GMC was offering a discounted price for failed brake lines, but the dealer charged me full price. $1,667.00. The discounted price was supposed to be $500.00.
Brake complaints in other Sierra 1500 years
Frequently asked questions
How common are brake problems on the 2007 GMC Sierra 1500?
NHTSA has 25 complaints about the brakes of the 2007 GMC Sierra 1500, 10% of the model year's 263 complaints. The component named most often is antilock/traction control/electronic limited slip (2 mentions).
Is there a recall for 2007 GMC Sierra 1500 brake problems?
No. NHTSA lists no brakes recall for the 2007 GMC Sierra 1500, though it has 2 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2007 GMC Sierra 1500 brake problems start?
Half of the complaints with a recorded mileage happened before about 65,000 miles, and 26% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 0 fires and 2 injuries to brakes problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.