hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
95,457 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2004 GMC Sierra 2500 brakes problems

brakes problem

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2004 GMC Sierra 2500 Owner Comments

problem #11

Mar 162016

Sierra 2500

  • 107,900 miles


In the past three months the fuel lines needed replacement as they had rusted so badly that a leak formed. Yesterday while pulling my 10,000 pound boat, my brakes suddenly failed because of a leak in the line between the ABS box and the right front wheel. The catastrophic failure nearly caused me to lose control of my vehicle and boat. I was able to downshift and use by emergency brake to bring the rig to a stop.

- Thorne Bay, AK, USA

problem #10

Mar 012016

Sierra 2500

  • 185,000 miles
I live in South East MA. Were sault is use always and it has rotted my brake lines at the ABS controll a line let go on my truck with family and my grand babies I am a heavy truck operator with a cdl so I know not to panic I got my truck stopped without a crash but if my wife was driveing or my young daughter they wouldnt be so lucky we in the saulting states should have staneless steal for safty cant be to much to ask for young lifes at stake or people who panic what should I do at the time I was in the city of taunton I was coming to a heavily traveled street in rush hour trafic the brake line to rear brakes falled because of rot on inspion I see they are all rotting and need to be repaired I dont have body rot or frame rot of any kind always car wash after storms on nice days.

- Berkley, MA, USA

problem #9

Jul 242015

Sierra 2500

  • 197,000 miles
The contact owns a 2004 GMC 2500. The contact stated that the emergency brake was inoperable. The contact mentioned that the parking brake was depressed and an abnormal noise emitted from the under carriage of the vehicle. The contact believed that the parking brake cable was fractured. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 197,000.

- El Granada, CA, USA

problem #8

Feb 032014

Sierra 2500

  • 98,000 miles


The contact owns a 2004 GMC Sierra 2500. The contact stated that the brake failed to engage while attempting to apply the brake pedal while driving 35 mph. The vehicle was towed to a local mechanic for inspection that confirmed that the brake lines were corroded. The vehicle was not repaired. The VIN was not available. The manufacturer was not made aware of the failure. The failure and current mileage was 98,000.

- Holt , MI, USA

problem #7

Sep 052013

Sierra 2500 8-cyl

  • 77,610 miles
When attempting to stop, the truck began to stop and then all of a sudden the brake pedal went to the floor. At this point there were no brakes at all. Thankfully no one was in front of me so I was able to coast until the vehicle slowed, and then use the E-brake to slow down enough to turn. Upon further inspection, a brake line had broken.

- Paoli, IN, USA

problem #6

Aug 242013

Sierra 2500

  • miles
Experienced a complete loss of service brakes. Fortunately this occured after completing a trip while towing a trailer. Had this happened during the trip serious injuries and multiple deaths could have been the result. Investigation of the problem indicated premture rusting through of the steel brake line to the right front disc brake. The brake line to the left front caliper is also badly rusted. The brake lines from the master cylinder are mildly rusted as well.

- Santa Fe, TX, USA

problem #5

Aug 102013

Sierra 2500 8-cyl

  • 99,600 miles


Got in vehicle, started it, put in gear, applied brake and pedal depressed farther than usual, hit again they went almost to floor.got out and saw brake fluid on frame where line had rusted in through.upon inspection all lines are terribly rusted and will need replaced.

- Elizabeth , WV, USA

problem #4

Oct 292012

Sierra 2500 8-cyl

  • 31,915 miles
I was approaching a one lane covered bridge on the way home from work and another approaching vehicle failed to yield. I made an emergency stop by pressing firmly on the brakes. Brake pedal went right to the floor. I had to quickly use my foot operated emergency/parking brake to stop from having a head on collision. I had to pay close to $1200 to have the entire brake line system replaced due to severe rust of the brake lines. I am very fortunate that this turned out the way it did. My life and the lives of others are being endangered by GM not using a material that is resistant to corrosion.

- Trappe , PA, USA

problem #3

Dec 042012

Sierra 2500 8-cyl Diesel

  • 93,000 miles
Brake lines rusted through. All brake fluid leaked out. No brake system including emergency brake failed. Had to stop vehicle against curb system.

- Chadds Ford, PA, USA

problem #2

Oct 012012

Sierra 2500

  • 102,000 miles
Brake lines all rotted away near ABS module mounted in frame. I had to take to a shop to get all line replace from ABS module forward. This truck has never been near salt ever. 100,000 miles and already relining the truck! fuel lines look like they only have a few months left. This is a danger and a huge waste of money for a buyer I have had other GM cars that are 30 years old with 350,000 miles with factory brake and fuel lines.

- Clarksville, MD, USA

problem #1

Jul 212012

Sierra 2500 4WD 8-cyl

  • 58,000 miles
Leaving small rural road. Brake pedal went to floor and vehicle rolled through stop sign. No oncoming traffic. Upon inspection, left forward brake line had ruptured due to corrosion. Only matter of time before other brake lines will fail.

- Williamstown, KY, USA

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