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really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
90,708 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

problem #5

Jun 042014

Sierra 1500 4WD 8-cyl

  • 150,000 miles


The contact owns a 2003 GMC Sierra 1500. The contact stated that while driving 30 mph, the vehicle failed to respond to deceleration attempts and that the brake warning light illuminated. The contact inspected the brakes and noticed that the failure was due to corrosion. The vehicle was not repaired. The manufacturer was not made aware of the problem. The approximate failure mileage was 150,000. Updated 8/19/14

- English Town, NJ, USA

problem #4

Jun 092012

Sierra 1500 4WD 8-cyl

  • 65,000 miles
The contact owns a 2003 GMC Sierra 1500. The contact stated while driving in reverse the brake pedal was stuck to the floor. The emergency brake had to be applied in order to stop the vehicle. The vehicle was towed to the dealer and the failure was located within the brake lines due to corrosion. The manufacturer denied assistance with the repair because the warranty expired. The vehicle was repaired. The approximate failure and current mileage was 65000. The brake lines burst due to rust and poor design. The consumer stated water and salt were trapped inside. The brake lines were replaced and positioned another way, so they would not hold salt and water from the roads. Updated 06/27/12

- Jocobson , MN, USA

problem #3

Oct 072011

Sierra 1500 4WD 8-cyl

  • Automatic transmission
  • 89,093 miles
The contact owns a 2003 GMC Sierra 1500. While parked, driver of the vehicle depressed the brake pedal and placed the gear in drive; however, the brake pedal dropped to the floor board. The vehicle crashed into the driver's home. The contact did not mention of there were any injuries. The vehicle was towed to a collision repair shop. The mechanic stated the brake lines were severally corroded and would have to be replaced. There was an investigation under NHTSA action number:PE10010 (service brakes, hydraulic service brakes, hydraulic:power assist:hydraulic:hoses, lines/piping, and fittings) that may be related to the failure. The vehicle was not repaired. The approximate failure mileage was 89,093 updated 1/20/12 the consumer stated the vehicle was parked in the driveway. It was parked towards the top of the driveway. The driveway has a steep slope and slopes down toward his parents house. The consumer's father entered the vehicle, started the engine, released the emergency brake, put his foot on the normal brake, and put the vehicle in drive. It was at that point, the brake pedal went to the floor and the vehicle began rolling down the driveway. There was approx 35 feet between the starting position of the vehicle and where the vehicle stuck the foundation of the home. At the moment of the brake failure, the driver tried pumping the brakes one more time, and then attempted to reach for the emergency brake. At the time of impact, the vehicle was traveling between 5-10 mph. Updated 02/22/12

- Oxford, CT, USA

problem #2

Oct 152010

Sierra 1500

  • 72,000 miles
The contact owns a 2003 GMC Sierra 1500. The vehicle was taken to a state inspection station where the contact was informed by the technician that the brake lines exhibited severe rust. The dealer was notified of the failure but because the vehicle was outside of warranty, the vehicle was not repaired. In addition, the contact stated that the main frame also exhibited rust and corrosion. The contact was in the process of taking the vehicle to an independent mechanic for repair. The VIN was unavailable. The failure mileage was 72,000.

- Homestead, PA, USA

problem #1

May 252010

Sierra 1500

  • 77,448 miles
The contact owns a 2003 GMC Sierra 1500. While driving in reverse and attempting to depress the brake pedal, the pedal extended to the floor. He stated that the brake light also illuminated on the instrument panel. The contact was forced to apply continuous pressure to the brakes in order to stop the vehicle. When the contact stepped out of the vehicle, he noticed fluid leaking from the brake line which was covered with rust. The vehicle was taken to a local mechanic who stated that all four brake lines were covered with rust. One of the brake lines were repaired. The failure mileage was 77,448. The current mileage was 77,548.

- Bowie, MD, USA

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