2003 GMC Sierra 1500 brakes problems
Owners reported brakes problems in 107 complaints for the 2003 GMC Sierra 1500, 51% of the complaints on file. It is the most reported problem area for this model year.
At a glance
- Complaints
- 107 51% of this year's complaints
- Typical mileage
- 77,000 miles 100 complaints with mileage
- Crashes and fires
- 8 and 0
- Injuries and deaths
- 1 and 0
Source: NHTSA owner complaints
When brakes problems show up
View the numbers
| Mileage | Complaints |
|---|---|
| 0k to 20k miles | 3 |
| 20k to 40k miles | 10 |
| 40k to 60k miles | 17 |
| 60k to 80k miles | 25 |
| 80k to 100k miles | 18 |
| 100k to 120k miles | 13 |
| 120k to 140k miles | 5 |
| 140k to 160k miles | 6 |
| 160k to 180k miles | 0 |
| 180k to 200k miles | 2 |
| 200k+ miles | 1 |
What the data shows
Of the 100 brakes complaints that report mileage, the median is about 77,000 miles, and 30% were reported before 60,000 miles.
These complaints mention 8 crashes, 1 injury.
What owners wrote
While slowing down for a light on a 4 lane highway my brake lines burst in two places failed from being weaken by rust....I had no chance to stop or advert the car and crashed into and totaled a new buick.....the driver was taken to the hospital...the front of my truck need repair....GM made the lines out of steel even thought the exhaust system and fuel line were made out of rust resistant material ( go figure)....I have my truck serviced at the local GM dealers and they never mentioned the potential…
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.
Other problems reported for the 2003 GMC Sierra 1500
- Electrical system 43 complaints
- Steering 15 complaints