"How reliable is the 2002 Chevrolet Trailblazer?"

"Based on 1570 NHTSA complaints, the 2002 Chevrolet Trailblazer has a median complaint mileage of 63000 miles. The most common issue is POWER TRAIN:AUTOMATIC TRANSMISSION."

"What are common problems with the 2002 Chevrolet Trailblazer?"

"The most frequently reported component in NHTSA complaints for the 2002 Chevrolet Trailblazer is POWER TRAIN:AUTOMATIC TRANSMISSION, accounting for a significant portion of the 1570 total complaints filed."

2002 Chevrolet Trailblazer: Reliability Data

Source: NHTSA — 1570 complaints

1570

Total Complaints

63,000mi

Median Mileage

POWER TRAIN:AUTOMATIC TRANSMISSION

Top Issue

152

Crash Reports

When Do Complaints Happen?

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

34,429 25th Percentile

63,000 Median Mileage

100,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

POWER TRAIN:AUTOMATIC TRANSMISSION

163

ELECTRICAL SYSTEM

119

POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)

EXTERIOR LIGHTING:BRAKE LIGHTS

AIR BAGS

FUEL SYSTEM, GASOLINE

POWER TRAIN

ENGINE AND ENGINE COOLING:ENGINE

ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN

EXTERIOR LIGHTING

Severity Assessment

152

Crashes

Fires

142

Injuries

Deaths

Sample Complaint Reports

"AFTER CONSUMER TOOK VEHICLE TO THE DEALERSHIP FOR RECALL REPAIRS, THERE WAS AN EXTRA GEAR PLACED IN VEHICLE. . WHEN THINKING THAT TRANSMISSION GEAR IS IN DRIVE IT IS ACTUALLY IN NEUTRAL. CONSUMER SPOKE TO DEALER, AND HE TOLD HER " SORRY YOU WILL HAVE TO LIVE WITH IT." *AK"

"CONSUMER STATES THERE IS A MATERIAL DEFECT UNDER THE SEAT WHERE THE JACK IS STORED, CONSUMER NOTICED SCREWS MISSING FROM THE TRIM AROUND THE FRONT TIRES, CONSUMER WAS INFORMED THAT ALTHOUGH THERE WERE HOLES, THERE WERE NO SCREWS TO FIT THE HOLES. *SLC"

"RADIO DID NOT WORK CORRECTLY. *SLC"

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.

POWER TRAIN:AUTOMATIC TRANSMISSION 163 complaints

25th: 45,500 mi Median: 63,000 mi 75th: 88,000 mi

ELECTRICAL SYSTEM 119 complaints

25th: 35,000 mi Median: 81,406 mi 75th: 142,000 mi

POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE) 68 complaints

25th: 16,605 mi Median: 40,000 mi 75th: 60,875 mi

EXTERIOR LIGHTING:BRAKE LIGHTS 65 complaints

25th: 16,250 mi Median: 35,969 mi 75th: 53,050 mi

AIR BAGS 65 complaints

25th: 56,125 mi Median: 83,187 mi 75th: 118,750 mi

Where Are Complaints Coming From?

Top states by complaint count.

TX: 130 MI: 109 NY: 104 CA: 92 OH: 89 FL: 79 IL: 74 PA: 68 NJ: 54 NC: 53

Who Files Complaints?

39.2%

Original Owners

60.8%

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	POWER TRAIN:AUTOMATIC TRANSMISSION	3
2001	29	76,531	POWER TRAIN:AUTOMATIC TRANSMISSION	3
2003	1160	73,000	ELECTRICAL SYSTEM	84
2004	1302	68,000	ELECTRICAL SYSTEM	69
2005	1902	70,174	ELECTRICAL SYSTEM	77
2006	1440	71,000	FUEL SYSTEM, GASOLINE	44
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