general problems of the 2008 Chevrolet Trailblazer

Nine problems related to service brakes have been reported for the 2008 Chevrolet Trailblazer. The most recently reported issues are listed below.

1 Service Brakes problem

Failure Date: 08/09/2018

My window in the rear passenger side malfunctioning. . . . It would let down on it's own. This happens when my vehicle in drive and when park.

2 Service Brakes problem

Failure Date: 01/05/2016

On a exit ramp (concrete) going about 30 mph when both side air bags unexpectedly deployed, brake pedal went all the way to the floor, no braking, pumping the brake corrected them and stopped the car. Brakes now seem normal. Both front seat belts are now locked. The car has no damage on the body or tires. G m has opened a case for us. Waiting their call back.

3 Service Brakes problem

Failure Date: 08/29/2013

My daughter traveling at approximately 55 mph, saw car in front of her stopped at a stop light. She attempted to slam on the brakes, it felt as if she was not stopping at all. She hit the stopped car, pushed both of our cars through the intersection to the other side. Her airbag did not deploy, onstar did not contact her. The reason I bought this specific car was for the onstar in case of a collision or emergency. When I contacted onstar later, they reported they did not receive notification that a collision had occurred. I contacted gm to have brake, airbag, and onstar failure investigated. Received report from gm investigator stating no failure in airbag system, that the crash was not significant enough to cause airbag deployment and onstar notification. She was traveling 45 mph upon impact (per cdr). The car was totalled - over $13,000 damage. If a crash at 45 mph, rear-ending, car totalled does not deploy airbags it seems as though something is wrong.

4 Service Brakes problem

Failure Date: 03/31/2012

While turning around in a cul DE sac one morning that was on a steep slope I heard a popping sound and my steering wheel jerked and the brake pedal depressed almost to the floor in three stages like it was catching on something and then would release and the stability control lights came on. Once I got the vehicle straightened out to go down the steep hill it felt like it does when a rotor gets warped. Once I got close to the bottom I turned onto a side street that was flat and I stopped and put it in park and turned the engine off. When I started it back up the lights were off and the brakes and steering returned to normal. The lights coming on has been a problem since I purchased the vehicle (listed in another complaint to follow).

5 Service Brakes problem

Failure Date: 01/27/2012

After stopping attempted to accelerate but could not move. Appeared that all four brakes were locked. Tried changing gears but no change. No warning lights. Finally turned engine off and restarted and problem went away.

6 Service Brakes problem

Failure Date: 05/15/2010

The contact owns a 2008 Chevrolet Trailblazer. The contact stated that while driving at approximately 40 mph, the brakes locked without warrant. The vehicle was towed to an authorized dealer where the failure was unable to be duplicated. The vehicle was not repaired. The failure and current mileages were 38,000.

7 Service Brakes problem

Failure Date: 05/13/2010

I have a 2008 chevy Trailblazer ss with 13800 miles on it. I was driving in normal traffic conditions on city streets when my brakes applied them selves and began to cause the vehicle to slow down to a stop while driving. I had to press on the gas pedal heavily so the vehicle would move to avoid a collision with vehicles turning ahead of me and also vehicles traveling behind me. I got to a safe area and pulled over and saw that the gas pedal was firm as can be and would not loosen up, I shifted the vehicle into park and the brakes disengaged. I took the vehicle to the dealer the next day and they where un able to replicate the problem and returned the vehicle to me with no repairs completed. I asked them to document this in case it happens again and causes a crash so they can be held liable. I do not feel safe operating my vehicle anymore knowing that at any time my brakes might turn on.

8 Service Brakes problem

Failure Date: 09/28/2009

The contact owns a 2008 Chevrolet Trailblazer. When the contact attempted to accelerate at a traffic light, the brakes would not disengage. He attempted to release the brakes by shifting gears and apply constant, steady pressure to the brake pedal. Within a few minutes, the brake released. On a separate occasion, while driving at speeds of 15 mph, the brakes locked. He abruptly depressed the accelerator pedal in an attempt to avoid a potential crash. He was able to maneuver the vehicle off of the road and shut off the engine. Upon restarting the vehicle, it functioned normally. The warning lights illuminated during both failures. The dealer could not duplicate nor determine the cause of the failure. There were no repairs made to the vehicle. The manufacturer was not notified. The current mileage was 31,225 and the failure mileage was approximately 24,000.

9 Service Brakes problem

Failure Date: 04/25/2009

I was stopped for a red light on a slight hill. When it turned green I tried to move ahead and all 4 brakes had locked up and I had no forward motion. I pushed had on gas pedal and was able to creep at about 1 mph to a driveway. When I entered driveway I heard a "clink" and brakes released. This veh has 5200 miles and is a 2008 Trailblazer ss awd. This is the 1st instance of this type. I took it to my servicing chevy dealer and they checked it out and said that "mechanically " it was fine. They contacted Chevrolet tac and were told this has never ever happened in the whole data base for gm and no repairs authorized till it can be replicated for them to see. There were no codes stored . This happened 0n 4-25-09. I went back to dealership on 4-28-09 and the again called tac to see if there was anyone who had info on this type of failure of the brakes. . . . But again no luck. I feel strongly that this is a safety issue and Chevrolet should be doing more than lip service. . . .


Other Service Brakes related problems of the 2008 Chevrolet Trailblazer


Fuel Economy of Trailblazer Vehicles
Trailblazer Service Bulletins
Trailblazer Safety Recalls
Trailblazer Defect Investigations