2008 Chevrolet Trailblazer Transmission and drivetrain Problems
- Complaints
- 10about this part
- Share
- 5%of 193 total for the year
- Median mileage
- 47,858miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 10 complaints about the transmission and drivetrain of the 2008 Chevrolet Trailblazer, 5% of the 193 complaints for this model year. Where a mileage was given, the median is 47,858 miles. 1 of these say a crash was involved and 1 a fire, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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 300.00 to buy the part”
NHTSA complaint #10807375, filed 2015-11, 157,000 miles“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…”
NHTSA complaint #11378181, filed 2020-12, 160,000 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. ?”
NHTSA complaint #10480742, filed 2012-10, 32,800 miles“Rented 2009 Chevrolet Trailblazer SUV from national car rental on 8/31/08 with 436 miles on odometer. Drove approx 800 miles over a period of 7 days. On 9/6/08, while driving on I-75 southbound at 70mph, vehicle shifted itself into 3rd gear, would not go into 4th or overdrive. Rpm's at 70 MPH were approx 3,500. Pulled off road at interstate exit, transmission made a clunk , jolting me and my wife rather intensely. Topped off the fuel, quite gingerly began our trip again. …”
NHTSA complaint #10241343, filed 2008-09, 1,326 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). …”
NHTSA complaint #10760680, filed 2015-09, 62,916 milesRelated service bulletins
- 11009088Sep 16, 2024This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be…
- 11006421Jul 24, 2024GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or…
- 11001321May 16, 2024This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
- 11000119Apr 26, 2024This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
- 10250347Feb 2, 2024This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and…
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10245395Nov 6, 2023This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing…
- 10242843Sep 1, 2023The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 10242061Aug 7, 2023This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
- 10237387May 30, 2023This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be…
Transmission and drivetrain: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 1 | 8% |
| 2025 | 6 | 23% |
| 2024 | 8 | 22% |
| 2023 | 10 | 13% |
| 2022 | 35 | 31% |
| 2021 | 41 | 21% |
| 2009 | 1 | 4% |
| 2008 | 10 | 5% |
| 2007 | 15 | 2% |
| 2006 | 50 | 5% |
| 2005 | 51 | 3% |
| 2004 | 62 | 6% |
| 2003 | 103 | 11% |
| 2002 | 310 | 27% |
| 2001 | 5 | 25% |
| 2000 | 5 | 19% |
Other parts of the 2008 Chevrolet Trailblazer
65 complaintsAir bags
33 complaintsEngine
21 complaintsExterior lighting
17 complaintsBrakes
15 complaintsEngine cooling
12 complaintsSeat belts
12 complaintsSteering
11 complaintsElectronic stability control
10 complaintsOther or unknown
9 complaintsFuel system
8 complaintsVehicle speed control
8 complaints
← All problems reported for the 2008 Chevrolet Trailblazer
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology