really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
134,226 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.

2003 GMC Sierra 2500 brakes problems

brakes problem

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2003 GMC Sierra 2500 Owner Comments

problem #9

Oct 082016

Sierra 2500

  • 350,000 miles


I was driving on I 75 doing 70 mph I had to come to a sudden stop I applied brakes and there was no brakes., I ended up putting truck in the ditch to avoid serious accident. It ended both brake lines from master cylinder both blew up from corrosiont hese lines went to the ABS module.I was some what injured.

- Essexville, MI, USA

problem #8

Sep 142016

Sierra 2500

  • 85,000 miles
ABS comes on at low speed.. it increases stopping distance.. I have once rear ended a vehicle because of this. There was no damage to either vehicle.. also my ABS light come on for a few seconds maybe two or three times a month..

- New Baltimore, MI, USA

problem #7

Apr 152016

Sierra 2500

  • 142,000 miles
Brake line failed, no brakes while heading for a red light. Drive off road till vehicle stopped. Brake line from master cylinder to ABS control, rotted out. Upon further inspection, all brake lines are rotted out. My mechanic states they all need to be replaced, it will happen again.

- Lake Orion, MI, USA

problem #6

Jul 182015

Sierra 2500

  • 100,010 miles


Brake line rusted through and lost all braking capability. Luckly it happened pulling into my driveway and not on the highway! fuel lines rusted through and leaking fuel puddling onto the ground.

- Glen Burnie, MD, USA

problem #5

Dec 132015

Sierra 2500

  • 119,222 miles
Severely rusted brake lines that split. Main line from master cylinder to ABS module and rear line just inboard of LH rear tire. Pedal went to the floor on city street when driving.

- South Bend, IN, USA

problem #4

Jul 132014

Sierra 2500 8-cyl Diesel

  • 120,000 miles
II put new brake calipers on my truck today and had my wife pumping the brake peddle as I bled the brakes and got to the last caliper rears then the 2 fronts when she told me the brake peddle was not holding like it was, and then smoke came out from under the truck and I looked underneath & seen brake fluid everywhere below drivers door the fluid under pressure blew over against the hot engine components as U have to run engine when bleeding the lines lucky I guess it did not catch fire, but after I got on the internet trying to find a replacement I found that is a common problem, I did see the other lines looked bad also the fuel lines looked the same good thing it happened in the driveway at home. Maybe would have been better off if it burnt down, G.M should fix all of these problems with these trucks on their dime as much as these trucks cost. !!

- Freedom, IN, USA

problem #3

May 032014

Sierra 2500

  • 110,000 miles


Driving to work one day, a car in front of me suddenly stopped to turn left. I hit my brakes and felt a "pop" and the brake peddle went straight to the floor, no brakes. I was traveling about 55 mph so at that point, I am a 55 mph spear on wheels. I swerved to the right and drove across someone's driveway and through their yard. This weekend was the city wide garage sales, and thankfully, these folks were not having a sale in their driveway or yard, or else this could have been a terrible accident. The only rust issue with this truck is the brake lines and fuel lines. If your lines rust before your body rust, then I feel there is a serious design flaw. If it was something else rusting then it wouldn't be as big of a deal. But when you are talking brake lines, it is just a matter of time before this flaw causes another catastrophic brake failure, leading to an accident involving serious injury or death. A 10 year old truck should not have this problem. I have owned vehicles that were 15, 20 years old and have never had to replace brake lines. Someone's life is worth so much more than a cheaply made brake line.

- Bluffton, IN, USA

problem #2

Dec 102013

Sierra 2500 4WD 8-cyl

  • 127,000 miles
I cross the route 18 on Massachusetts when the brake is completely gone almost involved in accident.

- Abington, MA, USA

problem #1

May 312012

Sierra 2500 8-cyl Diesel

  • 54,800 miles
Slowing down approaching a stop lite, applied brakes was a shudder of anti lock and pedal went down to floor. Had to apply emergency brake to avoid a crash.

- East Brunswick, NJ, USA

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