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 …
2008 Chevrolet Trailblazer powertrain problems
severe 10 complaints filed with NHTSA · avg repair $2,500
Complaints
10
Recalls
0
Crashes
1
Avg fix
$2,500
What owners are reporting 2 most recent
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
Common questions
How serious is the powertrain problem on the 2008 Chevrolet Trailblazer?
It's a meaningful issue. 10 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $2,500.
At what mileage does the powertrain typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
Some links on this page are affiliate links.