2002 Chevrolet Trailblazer Service and Repair Manual
2002 Chevrolet Trailblazer service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical coverage with wiring diagrams
- Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more
Trims covered
- LTZ Sport Utility 4-Door
- LS Sport Utility 4-Door
- North Face Sport Utility 4-Door
- LT Sport Utility 4-Door
Engines covered
- 4.2L 256Cu. In. l6 GAS DOHC Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
CERTAIN LIGHT DUTY PICKUP TRUCKS AND SPORT UTILITY VEHICLES FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 209, "SEAT BELT ASSEMBLIES." ONE OF THE TWO SENSORS IN THE
IF THIS WERE TO OCCUR, THE SAFETY BELT MAY NOT RESTRAIN THE OCCUPANT AS INTENDED DURING A
DEALERS WILL INSPECT THE DRIVER AND FRONT PASSENGER SAFETY BELT RETRACTORS, AND REPLACE TH
CERTAIN SPORT UTILITY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARDS NO. 101, "CONTROL LOCATION, IDENTIFICATION, AND ILLUMINATION" AND NO.
THESE VEHICLES DO NOT COMPLY WITH THE STANDARD.
DEALERS WILL REPROGRAM THE INSTRUMENT PANEL CLUSTER. OWNER NOTIFICATION BEGAN MAY 29, 20
CERTAIN MINIVANS, PASSENGER AND SPORT UTILITY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 225, "CHILD RESTRAINT ANCHORAGE SYSTEM." T
THIS DOES NOT MEET THE REQUIREMENTS OF THE STANDARD.
OWNERS WILL BE PROVIDED WITH A SUPPLEMENT FOR THEIR OWNER'S MANUAL. THIS SUPPLEMENT DESCR
CERTAIN SPORT UTILITY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 114, "THEFT PROTECTION." THESE VEHICLES ARE EQUIPPED WITH A MECHAN
THESE OVERRIDES ARE NOT PERMITTED UNLESS THE VEHICLE HAS A LOCKING STEERING COLUMN.
DEALERS WILL ELIMINATE THESE CONDITIONS BY DISABLING THE OVERRIDES. OWNER NOTIFICATION BE
VEHICLE DESCRIPTION: SPORT UTILITY VEHICLES (4 WHEEL-DRIVE). SOME OF THESE VEHICLES WERE BUILT WITH A RANGE SHIFT COLLAR IN THE TRANSMISSION TRANSFER CASE THAT CONTAINS CRACKS.
THIS CONDITION COULD RESULT IN A COMPLETE FRACTURE OF THE RANGE SHIFT COLLAR AND SUBSEQUEN
DEALERS WILL REPLACE THE TRANSFER CASES AND UPDATE THE CONTROL MODULE CALIBRATION. OWNER
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
DEPENDING ON THE OCCURRENCE AND WEATHER SITUATION, DRIVER VISIBILITY COULD BE REDUCED, WHI
DEALERS WILL COVER THE WINDSHIELD WIPER MODULE VENT HOLE WITH A PATCH. ALSO, THE WIPER MO
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 IN
AN INOPERATIVE BRAKE LAMP WILL NOT CONVEY THE DRIVER'S INTENTION OF STOPPING TO DRIVERS IN
DEALERS WILL INSPECT THE TAIL LAMP/STOP LAMP ASSEMBLIES, AND IF NECESSARY, REPLACE THEM.
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have hi
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have hi
Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected mo
GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the deal
This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should
Showing the 8 most recent of 444 technical service bulletins on file with NHTSA.
THE ACCIDENT HAPPENED 10/29/2004 AROUND 7:00 PM. MY HUSBAND, WAS TRAVELING ON HIGHWAY 27 NORTH COMING HOME FROM VICKSBURG, MS. THE ACCIDENT REPORT CLAIMED HE LOST CONTROL OF THE 20
THE ACCIDENT HAPPENED 10/29/2004 AROUND 7:00 PM. MY HUSBAND, WAS TRAVELING ON HIGHWAY 27 NORTH COMING HOME FROM VICKSBURG, MS. THE ACCIDENT REPORT CLAIMED HE LOST CONTROL OF THE 20
I DRIVE A 2002 CHEVY TRAILBLAZER 4WD AND MY SON WAS DRIVING THE VEHICLE ON HALLOWEEN NIGHT. HE WAS DRIVING THE SPEED LIMIT OF 30 MPH AND SWERVED TO AVOID A POSSUM IN THE ROAD, HE
TL* THE CONTACT OWNED A 2002 CHEVROLET TRAILBLAZER. WHILE DRIVING AT APPROXIMATELY 65 MPH, THERE WAS AN ABNORMAL NOISE AND SMOKE APPEARED FROM THE HOOD. THE VEHICLE SUDDENLY CAUGHT
Showing the 4 most serious of 1573 complaints filed with NHTSA.
