1999 GMC Sierra 1500 problems
The 1999 GMC Sierra 1500 has 182 complaints on file with NHTSA. The largest share (60%) concerns brakes. Next are seats (5%) and body & structure (5%).
At a glance
- Complaints
- 182 filed with NHTSA
- Most reported
- Brakes 60% of complaints
- Crashes and fires
- 10 and 0
- Injuries and deaths
- 7 and 0
- Typical mileage
- 109,000 miles 144 complaints with mileage
Source: NHTSA owner complaints
Where the complaints are
Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.
When problems show up
View the numbers
| Mileage | Complaints |
|---|---|
| 0k to 20k miles | 7 |
| 20k to 40k miles | 6 |
| 40k to 60k miles | 16 |
| 60k to 80k miles | 20 |
| 80k to 100k miles | 17 |
| 100k to 120k miles | 14 |
| 120k to 140k miles | 17 |
| 140k to 160k miles | 14 |
| 160k to 180k miles | 8 |
| 180k to 200k miles | 10 |
| 200k+ miles | 15 |
What the data shows
Of the 144 complaints that include odometer readings, half describe a problem before roughly 109,000 miles. For brakes specifically, the median reported mileage is about 113,000 miles (88 complaints with mileage).
Safety-related details: 10 complaints mention a crash; 7 injuries reported.
Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 1999 ranks 29th most-complained-about out of 30 model years of the GMC Sierra 1500 with enough data (27 complaints in that window). It is also covered by 1 safety recall campaign.
What owners wrote
A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.
I am the original owner of a 1999 GMC sierra that just had brake line failure on 7/14/16 on the interstate that caused an acccident. I had complete loss of brakes, pedal to the floor. I used low gear and park brake to minimize damage but still made contact. It is currently at patriot buick GMC in williamsburg va for repair where I bought it new. I feel me having to pay $1000+ for the brake line repair and now a court date and insurance issues that are not my fault.
Tl* the contact owns a 1999 GMC sierra 1500. While driving on a country road that was rocky and bumpy, the contact lost control of the vehicle. As a result, the contact drove into a ditch and crashed into a tree. The driver's side frontal air bag partially deployed, but failed to prevent the contact's head from making contact with the steering wheel. The contact sustained head injuries that required medical treatment. A police report was not filed.
'99 GMC sierra rust issues. On both sides, the cab corners and kicker panels are have rotted away. Wheel wells are just as bad. This is not a freak occurrence. I have seen the same make and year of trucks in many states with the same issue.
Stopped in my driveway to get newspaper and mail. I got back into the truck and applied the brake to shift into drive. The brake pedal went to the floor. I coasted up the driveway and was able to stop. When I got out of the truck there was a trail of brake fluid. The leak was coming from under the driver's seat area, where the brake line attached to the ABS pump. My mechanic had to replace all of the brake lines.