"How reliable is the 2006 Chevrolet Trailblazer?"

"Based on 1440 NHTSA complaints, the 2006 Chevrolet Trailblazer has a median complaint mileage of 71000 miles. The most common issue is Fuel System, Gasoline."

"What are common problems with the 2006 Chevrolet Trailblazer?"

"The most frequently reported component in NHTSA complaints for the 2006 Chevrolet Trailblazer is Fuel System, Gasoline, accounting for a significant portion of the 1440 total complaints filed."

2006 Chevrolet Trailblazer: Reliability Data

Source: NHTSA — 1440 complaints

1440

Total Complaints

71,000mi

Median Mileage

Fuel System, Gasoline

Top Issue

Crash Reports

When Do Complaints Happen?

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

49,000 25th Percentile

71,000 Median Mileage

100,250 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

Fuel System, Gasoline

434

Electrical System

229

Exterior Lighting

103

Fuel/Propulsion System

Fuel System, Other

Visibility/Wiper

Fuel Gauge System

Engine

Power Train

Power Window Devices And Controls

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"DT*: THE CONTACT STATED WHILE THE VEHICLE WAS PARKED ON AN INCLINE, THE RAINWATER DID NOT DRAIN PROPERLY AND WENT BACKWARD INTO THE PASSENGER SIDE OF THE VEHICLE. THIS CAUSED THE PASSENGER SIDE FLOOR BOARD TO FLOOD. THE DEALERSHIP DETERMINED THIS WAS HOW THE VEHICLE WAS MANUFACTURED AND SHOULD NO..."

"DT*: THE CONTACT STATED WHILE DRIVING 35 MPH THE FLOOR MAT TRAPPED THE ACCELERATOR PEDAL CAUSING THE VEHICLE TO SPEED OUT OF CONTROL. THE VEHICLE CRASHED INTO A FENCE POST AND A POWER LINE GUIDE WIRE. SEAT BELTS WERE IN USE HOWEVER MINOR INJURIES WERE SUSTAINED. THE VEHICLE WAS TOWED TO AN INDEP..."

"WE OWN A 2006 CHEVY TRAILBLAZER AND SINCE IT HAD ABOUT 500 MILES WE STARTED RUNNING INTO PROBLEMS. THE CHECK ENGINE LIGHT CAME ON. ALSO THE BRAKES MAKE A WHISTLING NOISE AND CHEVY INSISTS THAT IT IS NOT THE SERVICE BULLETIN THEY HAVE POSTED UP REGARDING THE FRONT AXLE MAKING A WHISTLING NOISE. AL..."

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.

Fuel System, Gasoline 434 complaints

25th: 45,000 mi Median: 58,000 mi 75th: 75,000 mi

Electrical System 229 complaints

25th: 63,125 mi Median: 90,500 mi 75th: 118,000 mi

Exterior Lighting 103 complaints

25th: 85,000 mi Median: 113,500 mi 75th: 145,750 mi

Fuel/Propulsion System 76 complaints

25th: 55,000 mi Median: 80,000 mi 75th: 100,000 mi

Fuel System, Other 69 complaints

25th: 40,000 mi Median: 52,000 mi 75th: 62,875 mi

Where Are Complaints Coming From?

Top states by complaint count.

MI: 102 NY: 90 PA: 89 FL: 87 OH: 86 CA: 73 IL: 62 TX: 60 MO: 58 GA: 51

Who Files Complaints?

3.2%

Original Owners

96.8%

Second+ Owners

Chevrolet Trailblazer — Other Years

See how this model compares across different model years.

Year	Complaints	Median Mileage	Top Issue	Crashes
2000	32	70,500	Automatic Transmission	3
2001	29	76,531	Automatic Transmission	3
2002	1570	63,000	Automatic Transmission	152
2003	1160	73,000	Electrical System	84
2004	1302	68,000	Electrical System	69
2005	1902	70,174	Electrical System	77
2007	965	72,000	Fuel System, Gasoline	34
2008	261	75,000	Electrical System	17
2009	34	82,300	Exterior Lighting	6
2021	239	18,300	Unknown Or Other	17
2022	139	25,207	Unknown Or Other	4
2023	81	25,000	Service Brakes	8
2024	49	10,000	Electrical System	7
2025	21	-	Electrical System	0

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