Problems · NHTSA complaints
2008 Chevrolet Trailblazer problems
Owners filed 195 complaints about the 2008 Chevrolet Trailblazer with NHTSA between Jan 2008 and May 2026. The most-cited component is electrical system (66).
Complaints
195
Filed with NHTSA
Crashes
10
Reported by owners
Fires
11
Reported by owners
Injuries
9
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Electrical system66
- Air bags34
- Engine21
- Exterior lighting17
- Seat belts12
- Engine and engine cooling12
- Steering11
- Power train10
- Electronic stability control (esc)10
- Vehicle speed control8
- Service brakes, hydraulic8
- Suspension7
- Structure6
- Service brakes6
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 10, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
6
8
18
10
19
19
34
22
13
8
10
12
7
5
2
0
1
0
1
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2008 | 6 |
| 2009 | 8 |
| 2010 | 18 |
| 2011 | 10 |
| 2012 | 19 |
| 2013 | 19 |
| 2014 | 34 |
| 2015 | 22 |
| 2016 | 13 |
| 2017 | 8 |
| 2018 | 10 |
| 2019 | 12 |
| 2020 | 7 |
| 2021 | 5 |
| 2022 | 2 |
| 2023 | 0 |
| 2024 | 1 |
| 2025 | 0 |
| 2026 | 1 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Electrical system
66 reports11 fires
“The contact owns a 2008 Chevrolet Trailblazer. The contact stated that while parked in her driveway, the passenger side door caught fire without warning. The fire occurred overnight and in the morning, the contact and her boyfriend discovered both her passenger side door and front passenger seat melted. The contact believed that the fire smoldered overnight and eventually burned out on its own. The fire department was not notified and a fire report was not filed. The contact called the dealer and was informed that there were no recalls on the vehicle. The contact's boyfriend discovered that the wiring inside the door had melted which may have caused the fire. The manufacturer had yet to be notified of the failure. The vehicle had yet to be serviced or diagnosed. The failure mileage was approximately 206,000”
Air bags
34 reports8 crashes
“Both side curtain airbags deployed while driving down the street. The driver's seatbelt tightened then locked up. There was no obvious reason for the airbags to deploy. the vehicle was taken to a Chevy dealer to see if it was on recall list but they said it was not. Vehicle was referred to a body shop for estimate for repairs...$6,435.00....if you can find the parts. driver was shaken up by the deployment but not injured.”
Engine
21 reports1 fire
“I was driving on the highway just reaching 55 mph, that is when all of a sudden, my suv stalled out with no warning no sound nothing. I tried to restart it and sounded as if it was trying to start but wouldn't. after a couple of times of trying that is when a tow truck came and as he was putting my suv on the flat bed I noticed huge amount oil on the ground. I got it towed to Chevy dealership for service and that is when they told me that the 6th cylinder cracked also a rod went through causing a hole in the engine block. I asked what could have caused it, because I'm on top of my maintenance and my suv only had 94,000 miles on it. That is when he explained to me that it was nothing that I did and that there was nothing that I could've done to prevent it and that there was nothing I did wrong that caused it. So, the leaves me asking, isn't that a manufacturing issue?”
Exterior lighting
17 reports1 fire
“While driving home at approximately 9:30pm, my eighteen year old daughter experienced the headlights failing to come on after dark with the automatic headlight-on feature. She turned on the headlights manually, and the low beams still were not working, but all driving lights and high beam headlights were working. I assumed that the bulbs were burned out, so replaced both the driver and passenger side bulbs. The low beam headlights still failed to come on either automatically or manually. I Googled the problem, and multiple people have reported this exact same problem, and some stated that there was a recall due to this problem. I am unable to find either a recall or a service bulletin for this issue.”
Seat belts
12 reports2 crashes
“YES I WAS DRIVING ON THE 65 MILES AN HOUR IN THE PASSENGER LANE ARE CARPOOL LANE ALL THE SUDDEN FOR NO REASON BOTH CURTAIN AIRBAGS JUST DEPLOYED I HAD MY HEAD RIGHT NEXT TO KNOCK ME OUT COLD I DIDN'T PROCEED OVER AND HIT THE WALL 21 TIMES JUST SKIP DOWN IN WHEN I CAME TO I THOUGHT I WAS I THOUGHT IT AND OTHER VEHICLES LIKELY THAT WAS NOT THE CASE DID CAUSE SOME TESTA INJURY HURT MIGHT PULL MY CAR ALLEGEDLY FOR MY RIBCAGE IN GOT MY NECK IN MY HEAD I SEE THIS IS HAPPENED MANY TIMES THE 2008 BUT YET THEY KEEP SAYING THERE'S NO PROBLEM THAT EVEN THOUGH IT'S A 2% LEAN AND EXPOSED THE 16 FOR THE ROLE OVER TO KICK IN THAT ESCAPE SCREWING EVERYBODY YEAH THE VEHICLES ON THE HIGHWAY GOING STRAIGHT NO TURNS NO BOMBS NOTHING JUST DEPLOYED I HAVE VIDEO PICTURES OF THE WALL IT SCREWED UP MY RAMS AND OF COURSE THE 4 WHEEL DRIVE MESSED UP AND SHOW THE BACK AXLE IN THE PUMPKIN SO NOW THATS WHINING SO I KNOW IT'S GONNA FAIL SOON POWER STEERING LINKIN TRUCK NEVER LEAD TO DROP ANOTHER WITH SILENT AT THE GREAT V6 IN IT NOW THE FRONT END STEERING ALL SCREWED UP AND I CAN SEE THAT IT'S HAPPENED MANY MANY TIMES BEFORE”
Engine and engine cooling
12 reports
“WITH ONLY 55,000 MILES, THE EXHAUST MANIFOLD CRACKED. SEEING ALL OF THE COMPLAINTS ONLINE AND TALKING TO MY MECHANIC, THIS SEEMS TO BE A DEFAULT PART. CHEVY SHOULD BE RECALLING THESE. MY MECHANIC HAD TO ORDER THE PART THROUGH THE DEALER AND THEY HAD THE REPLACEMENT MANIFOLD IN STOCK. EXHAUST MANIFOLDS ARE NOT NORMALLY STOCK ITEMS UNLESS THERE IS A REAL HIGH NEED TO REPLACE THEM....... *TR”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.