Vehicle Data Hub

1999 GMC Sonoma problems

NHTSA has received 78 complaints about the 1999 GMC Sonoma, and 13% of them involve brakes. After that come seats (12%) and body & structure (12%).

At a glance

Complaints
78 filed with NHTSA
Most reported
Brakes 13% of complaints
Crashes and fires
6 and 3
Injuries and deaths
5 and 0
Typical mileage
55,000 miles 25 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%.

  • Brakes 13%
  • Seats 12%
  • Body & structure 12%
  • Air bags 8%
  • Cruise control 6%
  • Drivetrain & axles 5%
  • Electrical system 5%
  • Steering 5%
  • Transmission 5%
  • Engine 4%

When problems show up

Complaints by mileage, 1999 GMC Sonoma Complaints by odometer reading in 20,000-mile steps. The median is about 55,000 miles. 0k to 20k miles: 1 complaints 20k to 40k miles: 4 complaints 40k to 60k miles: 9 complaints 60k to 80k miles: 3 complaints 80k to 100k miles: 0 complaints 100k to 120k miles: 3 complaints 120k to 140k miles: 1 complaints 140k to 160k miles: 2 complaints 160k to 180k miles: 1 complaints 180k to 200k miles: 1 complaints 200k+ miles: 0 complaints 040k80k120k160k200k miles Typical: 55,000 miles
Based on 25 complaints that include mileage. 56% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles1
20k to 40k miles4
40k to 60k miles9
60k to 80k miles3
80k to 100k miles0
100k to 120k miles3
120k to 140k miles1
140k to 160k miles2
160k to 180k miles1
180k to 200k miles1
200k+ miles0

What the data shows

Among the 25 complaints that report mileage, the typical (median) problem appeared at about 55,000 miles.

Safety-related details: 6 complaints mention a crash; 3 complaints mention a fire; 5 injuries reported.

Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 1999 ranks 9th most-complained-about out of 13 model years of the GMC Sonoma with enough data (46 complaints in that window).

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.

While driving at 10 MPH consumer was hit head-on by another vehicle on driver's side. Upon impact, driver's side and passenger's side air bags didn't deploy. Driver sustaine d lower back injury. Is currently in physical therapy.

May 1999 CrashInjury

The accident that happened in october wasn't reported because it was a single vehicle accident and the pavement was wet. I figured it was my fault and not the brakes. At the second accident, the pavement was dry and the collision was was a result of the brakes failing. I can only conclude that brakes during the first time were a compelling factor to the accident. I went to the dealership to complain about problems I had been experienceing with the brakes before both accidents.

December 1999 CrashInjury

Vehicle struck the rear of another vehicle at 35MPH, neither driver's side nor passenger's side air bag deployed. Manufacturer has been contacted.

March 2000 CrashInjury

Tl* the contact owned a 1999 GMC sonoma. While driving 5 MPH on a flooded dirt road, the contact crashed into a ditch. After the crash, the vehicle came to a complete stop. The air bag deployment was delayed. The contact sustained a cracked pelvis, broken facial bones, optic nerve damage, and other severe injuries to the face. Medical attention was required. A police report was not filed. The vehicle was not diagnosed or repaired. The VIN was not included in any recalls. The vehicle was destroyed and towed.

Reported at 140,000 miles, November 2016 CrashInjury

Dt*: the contact stated the steel tailgate support cables fractured upon opening the tailgate without warning. Although the problem persisted, the vehicle was not seen by a dealer. There is a NHTSA recall, # 04v129000, regarding the tailgate hinge and attachments. The VIN was not included in the recall. Updated 05/31/06.

Reported at 48,000 miles, April 2006

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