really awful
Crashes / Fires:
2 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
59,942 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 1500 brakes problems

brakes problem

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2003 GMC Sierra 1500 Owner Comments (Page 2 of 2)

« Read the previous 20 complaints

problem #12

Apr 152010

Sierra 1500 4WD 6-cyl

  • 13,312 miles


2003 GMC truck failed safety inspection dew to extremely rusted brake lines.

- Lamoine, ME, USA

problem #11

May 132010

Sierra 1500

  • 47,500 miles
Had dealership replace driver side front wheel bearing because it was making a grinding noise. A couple months later the front brake pads and rotors were replaced. After the brakes were serviced, I started noticing that the brakes were pulsating, which was felt in the pedal, at low speeds. Took vehicle to the dealership and they said during the test drive that the ABS system was activating unnecessarily. They then put it on the diagnostic machine for some reasons. I was told I needed to replace both wheel ABS sensors. The dealership said that the ABS has nothing to do with the brake pads and rotors. When the pads and rotors were replaced, again the vehicle was put on the diagnostic machine, but didn't pick up that the sensors were firing. I'm doubting it is coincidence that these things are happening at random. There has to be some kind of correlation between the wheel bearing being replaced, the pads and rotors being replaced, and now the sensors needing to be replaced. My vehicle is a 2003 GMC Sierra and has 47000 miles on it. All this happened within the last 6 months and 1500 miles.

- Watertown, NY, USA

problem #10

Jun 042010

Sierra 1500

  • 58,700 miles
Lost approximately 80% of braking power in a 2003 GMC Sierra 1500 with 60,000 miles. Small leak developed in the metal brake lines. There was no sensor indication that fluid was low despite brake fluid being one quart low.

- High Falls, NY, USA

problem #9

May 312010

Sierra 1500 8-cyl

  • 62,300 miles


Total brake failure on a 2003 GMC Sierra pickup truck 62,000 miles.

- Port Murray, NJ, USA

problem #8

Aug 192004

Sierra 1500

  • 4,500 miles
Starting at <5K miles the vehicle power train clunked when shifting from 2nd to 3rd gear. Now at 70K miles it clunks when shifting between all gears except final drive. The dealership replaced the output shaft on the tranny, then the U-joints, and modified the electrical shift patern. It still clunks. Power steering intermittently locks up at slow speed turns, especially when braking. Light bulbs burn out almost every three months. Had to pay ($486) for replacing the intake manifold gasket when vehicle had little over 40K miles. Brakes fade and the pedal almost goes to the floor, again intermittent. I have almost caused several accidents due to the steering and brake issues. GMC issued a letter stating "this is a normal occurance and will not cause damage." Well, it's getting worse in sound and clunking harder during shifting.

- Eden, MD, USA

problem #7

Apr 122010

Sierra 1500

  • miles
Regarding NHTSA investigation PE10010. I have a 2003 GMC Sierra and the steel brake lines are corroded beyond recognition. A recall to replace these lines needs to be instituted.

- Pottstown, PA, USA

problem #6

Apr 092010

Sierra 1500

  • 68,676 miles


Brakes failed because of corroded brake lines that failed on the way to work. It was fixed, and another broke when being tested! because of this were afraid to drive vehicle until recall is in effect !

- Ravenna, OH, USA

problem #5

Mar 182010

Sierra 1500

  • 15,000 miles
2003 GMC half ton Sierra truck. 3 time since 2003 that I've had to take it in for clunking noise felt thru steering wheel. Lubed a couple times then replaced the intermediate steering shaft. Still no guarantees that it won't happen again. Also very hard to steer when braking and brakes don't respond well when applied quickly. The first time the intermediate steering shaft needed attention the truck only had 15,000 miles on it. The second time was 30,000 miles and the last time was 45,000 miles and occurred in March 2010.

- Lacey, WA, USA

problem #4

Feb 272010

Sierra 1500

  • 123,000 miles
Premature failure of brake lines due to accelerated corrosion. All metallic portions of brake lines exhibiting severe corrosion along total length and loss of thickness to the point of failure. Have inspected 6 other trucks of same year and model and all exhibited similar degree of corrosion. It is obvious that brake line material of construction is deficient.

- Annandale, NJ, USA

problem #3

Feb 232010

Sierra 1500 6-cyl

  • 24,500 miles
Corroded brake lines on 2003 GM Sierra 1500 long box pickup truck. First failure was in January 2009. Second failure in February 2010. When truck was inspected in Nov. 2009, inspector indicated that GM truck brake lines are a known safety hazard. He looked over mine, but did see evidence of need for immediate repair. Truck was bought new in Oct. 2003 by me, and now has only 24,500 original miles on it. GM should most definitely be required to recall these vehicles and replace all corrosion-prone brake lines with corrosion-proof ones. There is no greater safety concern than braking. I am taking truck to have all lines replaced at my expense, in the interest of my and others' safety. But, GM should not be allowed to foist junk with massive safety consequences upon consumers and get to walk away from it. The potential here makes the Toyota gas pedal problem seem like a trivial joke!

- Gloversville, NY, USA

problem #2

Jan 102009

Sierra 1500

  • 22,000 miles
2003 GMC Sierra 1500 pu truck - corroded and failing hydraulic brake lines. This truck was purchased new by me in October 2003, and now has only 23,700 miles on it. A line near the fuel tank, which feeds the rear wheel calipers, rusted through in January 2009. Other lines in numerous locations also show signs of corrosion which will lead to future failures. Mechanics in this area tell me this is very common, even on some newer GMC (and similar Chevrolet) vehicles. Some of these mechanics replace the faulty lines with tubing which is more corrosion-resistant than provided by the manufacturer. A couple of weeks ago, one of the rear, rear wheel emergency brake cables on this vehicle also failed due to corrosion, and the other one showed signs of the same failure impending. Both were replaced. A serious, fundamental and compound hazard exists under this scenario. The manufacturer should be required to recall thee vehicles and replace all critical brake components subject to corrosive failures with corrosion-proof (or at least highly corrosion-resistant) parts.

- Gloversville, NY, USA

problem #1

Nov 102008

Sierra 1500

  • 90,000 miles
2003 GMC 1500 series pickup truck...won't stop slow speed anti-lock brake failure.

- Romeo, MI, USA

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