Print this page


hardly worth mentioning
Crashes / Fires:
0 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
71,453 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2008 Chevrolet Trailblazer drivetrain problems

drivetrain problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2008 Chevrolet Trailblazer:

Unsubscribe any time. We don't sell/share your email.

2008 Chevrolet Trailblazer Owner Comments

problem #6

Nov 202015


  • 157,000 miles


My 2008 Trailblazer is having a rough idling issue.. when I first start my vehicle it does not want to keep running. It doesnt want to move either. It is the throttle position sensor and it cost $300 to buy the part

- Brimley, MI, USA

problem #5

Aug 192015


  • 62,916 miles
While driving on highway, stopped at a light, I went to accelerate and truck lurched forward, made a loud bang and would not engage. The engine whines when accelerator is pressed, but no movement. Also, vehicle would roll back without the emergency brake on. There were zero warnings prior to complete failure of truck. Contacted GM and Chevy, and was offered no help, until out of pocket diagnostics are completed at a GM/Chevy dealer (and at this point since vehicle is out of warranty, owner was told that help from GM is not guaranteed). Truck is at a private shop, preliminary findings are that the front differential is damaged. The power output shaft and spline is stripped, the cause is vehicle (drivetrain) design does not allow engine oil to get to these components. The parts become dry and brittle, which is why the gears are stripped and failure occurred. This is not an owner maintenance issue, but a complete design flaw. These components should be encased and be getting lubricated from the engine oil. Further findings will be reported.

- Woodridge, IL, USA

problem #4

Dec 312014

Trailblazer 6-cyl

  • 92,000 miles
Leaving my place of employment, I made a left turn on to the road. While in the turn, my SUV began to stall.the engine malfunction indicator lamp came on. I managed to coast on to someone's property. I turned the engine off and sat there for approximately 15 minutes. Then, I restarted the engine and managed to get home. I used a scanner to get the code for the possible malfunction. The malfunction was listed as P2135, which read, in part "throttle/pedal position sensor/switch A/B voltage correlation". this same problem was cited in NHTSA: Action number: 10047220 service bulletin number: 340852., for the model year 2008. However, the dealership and GM, have stated that my vehicle is not covered. This is a great source of frustration. With the hundred of thousand of vehicles that has been recalled by GM for a multitude of defects, somehow the model year 2008, is a model of perfection. Fortunate for me, that I was not on the freeway when my vehicle began to loose power.

- Tucson, AZ, USA

problem #3

Feb 222013

Trailblazer 6-cyl

  • 69,000 miles


Repeated issue. Smell of smoke/burning triggers dash warning signals. Same dash warning signals come on without smell of smoke/burning. Cycle repeats itself without pattern, and includes during 4 wheel use. Vehicle taken to multiple Chevrolet dealerships for service (Utah, North Carolina and Washington) with the dash warning lights on. Utah and nc claim unable to replicate event or identify problem, so listed as unknown without correction. GMC executive office interdiction resulted in replacement of stereo even though dash light indicate powertrain & electrical. Stereo broke 2 mos later. Gmeo and wa identified fuse issue related to 4 wheel drive, but unable to replicate smoke/burning before claiming issue resolved. Dash warning lights constantly come on and off indicating problem with powertrain/electrical. Gmeo closed case as resolved.

- Monroe, WA, USA

problem #2

Oct 152010

Trailblazer 6-cyl

  • 32,800 miles
I bought this vehicle back in September 2009. Ever since I bought the vehicle I have had problems with the traction control lights coming on for no apparent reason. This happens when its hot and cold, dry or wet. Just starting the engine makes then come on. I have been back to the dealer for 2 years now for the same problem and they tell me that they don't know why it is happening and can't fix it. My vehicle is now out of warranty and will never be fixed. ?

- Las Vegas, NV, USA

Search for these popular complaint phrases...

problem #1

Dec 152008


  • 15,000 miles
The contact owns a 2008 Chevrolet Trailblazer 4WD. While driving approximately 30 mph during inclement weather, the stabilitrak service light came on the dashboard. She stated that the stabilitrak does not work while driving over an ice patch. The vehicle was taken to the dealer for the failure who reset the light. The vehicle was taken to the dealer at least seven times for the failure; however, the failure continued to occur. The vehicle was not repaired for the failure. While driving 70 mph, the vehicle would shift from two wheel to four wheel drive low. The vehicle was taken to the dealer and they reset the light. Over a two year period, the vehicle was taken back and forth to the dealer and eventually the dealer replaced the transfer case. The vehicle was repaired. The approximate failure mileage was 15,000 and the current mileage was 70,000.

- Hugo, MN, USA

Not what you are looking for?