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really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
44,848 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 Chevrolet Avalanche brakes problems

brakes problem

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2003 Chevrolet Avalanche Owner Comments

problem #4

May 192013

Avalanche 4WD 8-cyl

  • miles


2003 Chevrolet Avalanche 1500. Consumer writes in regards to vehicle complete brake failure. The consumer stated while driving 70 mph, the brake light failure light illuminated. When the consumer applied the brake, there was no response. The consumer was able to pull over safely. The vehicle was towed to a certified Chevrolet dealer, where an inspection revealed, the brake failure was due to a break in one of the brake lines, and all of the brake lines were so deteriorated and rust encrusted, that all of the lines had to be replaced.

- Mountain Top, PA, USA

problem #3

Jul 122012


  • 62,392 miles
The contact owns a 2003 Chevrolet Avalanche 1500. The contact stated that while driving 65 mph, he applied the brakes but they failed. The vehicle was towed to an independent mechanic for diagnosis and the contact was informed that due to corrosion, the brake lines were faulty and needed replacing. The vehicle was repaired. In addition, as precautionary measure the vehicle was taken to an authorize dealer where all of the brake lines were replaced, including the one that was recently replaced by the independent machanic. The manufacturer was notified but they offered no assistance. The failure and current mileage was 62,392.

- Kingsville, OH, USA

problem #2

Sep 152010


  • 85,000 miles
The contact owns a 2003 GMC 1500 Avalanche. The contact was driving approximately 20 mph and the brakes failed to respond upon engagement. The vehicle crashed into six different vehicles. There were no personal injuries. A police report was filed for the incident. The vehicle sustained minor damage and was towed to an independent mechanic where it was discovered that the brake lines fractured due to corrosion. The brake line tubing was replaced. The failure mileage was 85,000.

- P. O. Box 932, NY, USA

problem #1

Jul 112010

Avalanche 8-cyl

  • Automatic transmission
  • 32,000 miles
The contact owns a 2003 Chevrolet Avalanche. The contact stated that while driving approximately 15 mph and attempting to /make a right turn, the brakes would not engage. The brake service light then illuminated. The vehicle was towed //where an independent mechanic replaced both brake lines. The failure and current mileages were approximately 32,000. Updated the consumer stated both brake lines were replaced. However, he has since traded the vehicle for another Avalanche. Updated 10/26/10

- Summerville, SC, USA

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