2005 Chevrolet Trailblazer: Reliability Data

Source: NHTSA — 1902 complaints
1902
Total Complaints
70,174mi
Median Mileage
ELECTRICAL SYSTEM
Top Issue
77
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

50,000 25th Percentile
70,174 Median Mileage
96,875 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ELECTRICAL SYSTEM
432
FUEL SYSTEM, GASOLINE
429
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
171
EXTERIOR LIGHTING
105
FUEL/PROPULSION SYSTEM
95
VEHICLE SPEED CONTROL
72
FUEL SYSTEM, OTHER
66
AIR BAGS
47
EXTERIOR LIGHTING:HEADLIGHTS
32
ENGINE
30

Severity Assessment

77
Crashes
33
Fires
68
Injuries
1
Deaths

Sample Complaint Reports

"2005 RENTAL TRAIL BLAZER FROM ENTERPRISE ON 11/1/2005 FAILED TO LOCK THE SEAT BELT PROPERLY TO HOLD ME BACK FROM HITTING THE STEERING WHEEL. I KNOW THIS WAS ALSO A PROBLEM ON THE 2002 TRAIL BLAZERS AND SOME OTHER SUVS. GM WAS TO SEND OUT AN INVESTIGATOR TO LOOK AT IT, BUT BECAUSE THEY WAITED TOO LON..."
"THE TRANSMISSION SHIFTED HARD FROM FIRST TO SECOND GEAR. *NM THE TRANSMISSION SHIFTED SO HARD THAT IT ALMOST JERKED THE STEERING WHEEL OUT OF THE CONSUMERS HANDS. THE SECOND CONCERN WAS WHEN THE CONSUMER HAD TO PLACE THE REAR SEAT DOWN TO PLACE ITEMS IN THE BACK , IT REQUIRED THAT THE FRONT SEAT..."
"THE TRANSMISSION SHIFTED HARD FROM FIRST TO SECOND GEAR. *NM THE TRANSMISSION SHIFTED SO HARD THAT IT ALMOST JERKED THE STEERING WHEEL OUT OF THE CONSUMERS HANDS. THE SECOND CONCERN WAS WHEN THE CONSUMER HAD TO PLACE THE REAR SEAT DOWN TO PLACE ITEMS IN THE BACK , IT REQUIRED THAT THE FRONT SEAT..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

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