VehicleVerdict

2002 Chevrolet Trailblazer Ext problems

Verdict · NHTSA data

Among the better years

The 2002 Chevrolet Trailblazer Ext is among the quieter years of the Trailblazer Ext on NHTSA's books: 120 complaints (56% below the model's median year), 3 recalls, and no open investigations.

No single system dominates the record — complaints spread across fuel system (23), transmission (20), and electrical system (14), which usually points to general build quality rather than one defect.

120

NHTSA complaints

3

Recalls

5

Investigations

3

Crash-involved

4

Fires reported

1

Injuries

0

Deaths

—

NCAP overall

How does 2002 compare to other Trailblazer Ext years?

Trailblazer Ext NHTSA complaints by model year, 2002 highlighted406 complaints2002: 120 complaints2003: 406 complaints2004: 306 complaints2006: 238 complaints
Trailblazer Ext NHTSA complaints by model year, 2002 highlighted. Red bars are years to avoid.

See all Trailblazer Ext years to avoid →

What are the most common 2002 Chevrolet Trailblazer Ext problems?

ComponentComplaintsShare
Fuel System2319%
Transmission2017%
Engine1412%
Electrical System1412%
Visibility & Wipers119%
Lighting119%
Latches & Locks65%
Body & Structure54%
Other54%
Suspension43%
Seat Belts11%
Climate Control (A/C & Heat)11%
Airbags11%
Seats11%
Speed Control11%
Steering11%
Tires & Wheels11%

Does the 2002 Chevrolet Trailblazer Ext have recalls?

3 NHTSA recall campaigns on file. Recall repairs are free at franchised dealers.

05V494000Latches & LocksOctober 27, 2005 · 98,007 units

Defect

CERTAIN SPORT UTILITY VEHICLES HAVE A REAR SIDE CLOSURE LATCH THAT MAY NOT LATCH OR UNLATCH DUE TO CORROSION CAUSED BY ROAD SPLASH, SUCH AS WATER AND ROAD SALT. THESE VEHICLES WERE ORIGINALLY SOLD IN OR CURRENTLY REGISTERED IN THE FOLLOWING STATES: CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA, WISCONSIN, AND THE DISTRICT OF COLUMBIA.

Consequence

IF THE DOOR IS NOT LATCHED PROPERLY AND IT GOES UNNOTICED, IT MAY OPEN WHILE THE VEHICLE IS IN MOTION. IF AN UNBELTED OCCUPANT FELL OUT OF THE VEHICLE, PERSONAL INJURIES COULD OCCUR.

Remedy

DEALERS WILL INSTALL A SEAL ALONG THE LOWER PART OF THE ROCKER PANEL TO PREVENT INTRUSION OF CORROSIVE MATERIAL, AND INSPECT THE REAR SIDE CLOSURE LATCHES. FUNCTIONAL LATCHES WILL BE CLEANED AND LUBRICATED. NON-FUNCTIONING LATCHES WILL BE REPLACED. THE RECALL BEGAN ON FEBRUARY 24, 2006. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463, OR ISUZU AT 1-800-255-6727.

04V527000LightingNovember 1, 2004 · 871,473 units

Defect

ON CERTAIN SPORT UTILITY VEHICLES, VIBRATION AND HEAT MAY CAUSE THE TAIL LAMP/STOP LAMP BULB TO LOOSEN IN ITS SOCKET. IF THIS OCCURS, THE BULB MAY FLICKER AND EVENTUALLY BECOME INOPERATIVE.

Consequence

AN INOPERATIVE BRAKE LAMP WILL NOT CONVEY THE DRIVER'S INTENTION OF STOPPING TO DRIVERS IN FOLLOWING VEHICLES, AND AN INOPERATIVE REAR TURN SIGNAL LAMP WILL NOT CONVEY THE DRIVER'S INTENTION TO TURN TO DRIVERS IN FOLLOWING VEHICLES. BOTH OF THESE FAILURES CAN INCREASE THE RISK OF A CRASH.

Remedy

DEALERS WILL INSPECT THE TAIL LAMP/STOP LAMP ASSEMBLIES, AND IF NECESSARY, REPLACE THEM. THE RECALL BEGAN ON NOVEMBER 22, 2004. OWNERS SHOULD CONTACT CHEVROLET AT 1-800-630-2438, OLDSMOBILE AT 1-800-630-6537, BUICK AT 1-866-608-8080, OR GMC AT 1-866-996-9463.

04V046000Visibility & WipersFebruary 4, 2004 · 581,394 units

Defect

CERTAIN SPORT UTILITY VEHICLES HAVE WINDSHIELD WIPER SYSTEMS THAT WILL NOT TURN ON, CEASE OPERATION WHILE IN USE, FAIL TO TURN OFF/ON BY THEMSELVES (MOISTURE SENSITIVE WIPER SYSTEM), OR HAVE CONTINUOUS WINDSHIELD WASHER PUMP OPERATION BECAUSE THE PRESENCE OF WATER WITHIN THE WIPER MODULES CAN EITHER CAUSE A SHORT CIRCUIT OR CAN LEAD TO THE CORROSION OF COMPONENTS WITHIN THE MODULE.

Consequence

DEPENDING ON THE OCCURRENCE AND WEATHER SITUATION, DRIVER VISIBILITY COULD BE REDUCED, WHICH COULD RESULT IN A CRASH.

Remedy

DEALERS WILL COVER THE WINDSHIELD WIPER MODULE VENT HOLE WITH A PATCH. ALSO, THE WIPER MOTOR, CIRCUIT BOARD, AND ELECTRICAL CONNECTOR WILL BE INSPECTED TO SIGNS OF WATER INTRUSION AND/OR CORROSION AND BE REPLACED AS REQUIRED. THE RECALL BEGAN JULY 6, 2004. OWNERS SHOULD CONTACT CHEVROLET AT 1-800-630-2438; OLDSMOBILE AT 1-800-630-6537; OR GMC AT 1-866-996-9463.

Consumer complaints filed with NHTSA

Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.

“CHECK ENGINE LIGHT WAS ON VEHICLE,COMPUTER CHECK SAID FUEL TANK HAS A LEAK OR CRACK. THIS IS A SAFETY HAZARD WHICH COULD CAUSE A FIRE OR EXPLOSION AND SHOULD BE RECALLED. HAD TO HAVE REPLACED BY THE GARAGE AT MY EXPENSE. RESEARCH ON THE INTERNET HAS SHOWN THERE HAVE BEEN A LOT OF THESE TRAILBLAZERS…”

Complaint filed with NHTSA · Fuel System · December 21, 2006

“WHILE DRIVING ON THE HIGHWAY I LOST POWER. I PULLED OVER AND FOUND THE TRANSMISSION COOLANT LINES HAD CORRODED. TRANSMISSION FLUID HAD ALL LEAKED OUT AND THE TRANSMISSION WAS RUINED. THE CAR WAS SERVICED AT THE DEALER 2 DAYS EARLIER AT THE DEALER. I UNDERSTAND THIS IS A TYPICAL PROBLEM WITH THIS…”

Complaint filed with NHTSA · Transmission · July 15, 2008

“2002 CHEVROLET ELECTRONIC CLUTCH FAN FAILURE. MANY OF THESE ELECTRONIC CLUTCH FANS ARE FAILING IN OUR AREA. IMO, DUE TO HIGH HEAT CAUSING O-RING SEAL FAILURE AND LOSS OF SILICON LUBRICANT. IMO, PART IS NOT WELL ENOUGH BUILT TO WITHSTAND SW HEAT. *NM”

Complaint filed with NHTSA · Engine · August 18, 2006

“PULLED INTO DRIVEWAY, LIGHTS WOULD NOT GO OFF, A FEW MINUTES LATER SMOKE WAS COMING OUT FROM UNDER HOOD AND IT SMELLED LIKE BURNING PLASTIC. POPPED HOOD AND FUSE BLOCK AND RELAY WE SMOKING AND MELTING! GOT FIRE EXTINGUISHED AND PULLED THE HEAD LIGHT RELAY SWITCH, BUT IT HAD MELTED THROUGH THE…”

Complaint filed with NHTSA · Electrical System · July 18, 2013 · fire

“DT: REAR WINDOW BLEW OUT WHILE CONSUMER WAS REMOVING HER CHILDREN FROM THE REAR SEAT. THIS HAPPENED AT ABOUT 7:30 PM IN THE EVENING. TEMPERATURE SAID ABOUT 92 DEGREES. THE PLASTIC COVER OVER THE THIRD BRAKE LIGHT, LOCATED ON TOP AND INSIDE OF THE BACK WINDOW, CRACKED. THE WHOLE HOUSING. THE WINDOW…”

Complaint filed with NHTSA · Visibility & Wipers · June 14, 2005

2002 Chevrolet Trailblazer Ext — common questions

Is the 2002 Chevrolet Trailblazer Ext reliable?

Its record is better than the model's norm: 120 NHTSA complaints, below the typical Trailblazer Ext year, with 3 recalls and no open investigations.

What are the most common 2002 Trailblazer Ext problems?

According to NHTSA complaint data, the leading problem areas are fuel system (23 complaints), transmission (20 complaints), electrical system (14 complaints).

Does the 2002 Chevrolet Trailblazer Ext have recalls?

Yes — NHTSA lists 3 recall campaigns affecting the 2002 Chevrolet Trailblazer Ext. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Is the 2002 Chevrolet Trailblazer Ext under NHTSA investigation?

NHTSA opened 5 investigations into this model year; all are now closed.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.