2007 Chevrolet Trailblazer: Reliability Data

Source: NHTSA — 965 complaints
965
Total Complaints
72,000mi
Median Mileage
FUEL SYSTEM, GASOLINE
Top Issue
34
Crash Reports

When Do Complaints Happen?

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

52,000 25th Percentile
72,000 Median Mileage
107,900 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

FUEL SYSTEM, GASOLINE
213
ELECTRICAL SYSTEM
193
EXTERIOR LIGHTING
141
FUEL/PROPULSION SYSTEM
58
VISIBILITY:POWER WINDOW DEVICES AND CONTROLS
52
FUEL SYSTEM, OTHER
30
AIR BAGS
25
STEERING
23
ENGINE
22
VISIBILITY/WIPER
19

Severity Assessment

34
Crashes
78
Fires
39
Injuries
4
Deaths

Sample Complaint Reports

"TREAD SPLIT OPEN ON INSIDE. NO INDICATION OF BEING CAUSED BY AN OUTSIDE FORCE. CONTITENTAL CONTITRAC TR P24565R17 LOAD INDEX & SPEED SYMBOL -105S DOT TIRE IDENT - A38T BL6 TREAD - 520 TRACT - A TEMP - B TIRE PLY COMP - 4PLIES, 2 POLYMERS, 2 STEEL SIDEWLL, 2PLY POLYESTER. *TR"
"TL*THE CONTACT OWNS A 2007 CHEVROLET TRAILBLAZER. WHILE DRIVING APPROXIMATELY 25 MPH ON NORMAL ROAD CONDITIONS, THERE WAS A LOW POWER RESPONSE WHEN THE ACCELERATOR PEDAL WAS DEPRESSED. IMMEDIATELY, THE VEHICLE ACCELERATED UNEXPECTEDLY. THE TRACTION WARNING INDICATOR ILLUMINATED ON THE INSTRUMENT ..."
"TL*THE CONTACT OWNS A 2007 CHEVROLET TRAILBLAZER. WHILE DRIVING APPROXIMATELY 25 MPH ON NORMAL ROAD CONDITIONS, THERE WAS A LOW POWER RESPONSE WHEN THE ACCELERATOR PEDAL WAS DEPRESSED. IMMEDIATELY, THE VEHICLE ACCELERATED UNEXPECTEDLY. THE TRACTION WARNING INDICATOR ILLUMINATED ON THE INSTRUMENT ..."

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