hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
77,318 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 #2

Apr 052012

Sierra 2500 8-cyl Diesel

  • 109,000 miles


Both front hydraulic brake lines corroded on drivers side, with loss of braking, on chassis top rear of front wheel. It appears that there is a large wiring loom (1 1/2" O.D.) clipped on top of hydraulic lines, one to lf and rf wheels. Corrosion on both lines are at the contact of the loom and lines. Vibration may have caused the loom and lines to rub and allowed moisture to corrode the brake lines.

- Corolla, NC, USA

problem #1

Jan 192011

Sierra 2500

  • 45,635 miles
When coming to a stop the pedal went to floor and had no brakes. Luckily I was able to swerve and miss the vehicle in from of me. But had to run through the four way stop and was blessed to have no other vehicles in way. The brake fluid was leaking from under the driver side about where the seat is. Upon investigation, the lines are all corroded and rusting. Obviously it only takes one to leak but all need to be replaced. This is such a surprise because this truck sits in the garage most of the time and has very few miles on it.

- Ortonville , MI, USA

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