2005 Chevrolet Trailblazer Ext 370: Reliability Data
When Do Complaints Happen?
Distribution of NHTSA complaints by vehicle mileage at time of report.
What Fails?
Most reported component issues from NHTSA complaints.
Severity Assessment
Sample Complaint Reports
"VEHICLE WAS INVOLVED IN DRIVER'S SIDE COLLISION. BOTH DOORS ON LEFT SIDE DO NOT OPERATE PROPERLY. REPLACEMENTS PARTS ARE NOT BEING MANUFACTURED. *JB"
"VEHICLE WAS INVOLVED IN DRIVER'S SIDE COLLISION. BOTH DOORS ON LEFT SIDE DO NOT OPERATE PROPERLY. REPLACEMENTS PARTS ARE NOT BEING MANUFACTURED. *JB"
"I JUST PURCHASED A 2005 CHEVROLET TRAILBLAZER IN JANUARY OF THIS YEAR. THE PROBLEM IS THAT THE DRIVER'S SIDE VISOR HAS AN UNCOVERED MIRROR ON IT. WHEN I PULL THE VISOR DOWN TO BLOCK THE SUN, THE MIRROR REFLECTS MY HANDS AND LAP WHICH IS A DISTRACTION WHILE DRIVING. I CALLED THE CUSTOMER SERVICE P..."
Source: NHTSA ODI Complaints Database. Names and identifying details omitted.
When Were Complaints Filed?
Number of complaints by the year the issue occurred.
When Does Each Component Fail?
Median mileage at complaint for top components.
Where Are Complaints Coming From?
Top states by complaint count.
Who Files Complaints?
Chevrolet Trailblazer Ext 370 — Other Years
See how this model compares across different model years.
Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.
Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.
Data through: 2026-03-28
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