2002 GMC Envoy 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.
Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Wiring diagrams and electrical sections
- Powertrain, brakes, steering, suspension, HVAC and more
Trims covered
- SLE Sport Utility 4-Door
- SLT 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 DRIVER'S AND FRONT
IF THIS WERE TO OCCUR, THE SAFETY BELT MAY NOT RESTRAIN THE OCCUPANT AS INTENDED DURING A CRASH, AND
DEALERS WILL INSPECT THE DRIVER AND FRONT PASSENGER SAFETY BELT RETRACTORS, AND REPLACE THEM IF NECE
SOME SPORT UTILITY VEHICLES EQUIPPED WITH AN ELECTRONICALLY CONTROLLED AIR SUSPENSION (ECAS) HAVE A CONDITION IN WHICH THE ECAS MAY PRODUCE A BRIEF ELECTRICAL SPIKE WHILE THE VEHICLE IS OPERATING. TH
IF THE SPIKE DAMAGES THE PCM, THE VEHICLE MAY NOT RESTART. IF THIS HAPPENS WHILE THE VEHICLE IS MOV
DEALERS WILL INSTALL A WIRING HARNESS. THE RECALL WILL BEGIN ON AUGUST 19, 2004. OWNERS SHOULD CON
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. 208, "OCCUPANT CRASH
THESE VEHICLES DO NOT COMPLY WITH THE STANDARD.
DEALERS WILL REPROGRAM THE INSTRUMENT PANEL CLUSTER. OWNER NOTIFICATION BEGAN MAY 29, 2003. OWNE
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." THE OWNER'S MANUAL DO
THIS DOES NOT MEET THE REQUIREMENTS OF THE STANDARD.
OWNERS WILL BE PROVIDED WITH A SUPPLEMENT FOR THEIR OWNER'S MANUAL. THIS SUPPLEMENT DESCRIBES AND S
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 MECHANICAL OVERRIDE THAT C
THESE OVERRIDES ARE NOT PERMITTED UNLESS THE VEHICLE HAS A LOCKING STEERING COLUMN.
DEALERS WILL ELIMINATE THESE CONDITIONS BY DISABLING THE OVERRIDES. OWNER NOTIFICATION BEGAN ON MAY
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 SUBSEQUENT LOSS OF
DEALERS WILL REPLACE THE TRANSFER CASES AND UPDATE THE CONTROL MODULE CALIBRATION. OWNER NOTIFICATI
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 CONTINUOU
DEPENDING ON THE OCCURRENCE AND WEATHER SITUATION, DRIVER VISIBILITY COULD BE REDUCED, WHICH COULD R
DEALERS WILL COVER THE WINDSHIELD WIPER MODULE VENT HOLE WITH A PATCH. ALSO, THE WIPER MOTOR, CIRCU
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 456 technical service bulletins on file with NHTSA.
RECALL 01V126000; WHILE DRIVING 60-65 MPH CONSUMER LOST CONTROL OF VEHICLE, HIT CONCRETE MEDIAN, AND VEHICLE BOUNCED OFF MEDIAN AND HIT RIGHT GUARDRAIL. ALSO, VEHICLE CAUGHT ON FIRE, FIRE DEPARTM
RECALL 01V126000; WHILE DRIVING 60-65 MPH CONSUMER LOST CONTROL OF VEHICLE, HIT CONCRETE MEDIAN, AND VEHICLE BOUNCED OFF MEDIAN AND HIT RIGHT GUARDRAIL. ALSO, VEHICLE CAUGHT ON FIRE, FIRE DEPARTM
RECALL 01V126000; WHILE DRIVING 60-65 MPH CONSUMER LOST CONTROL OF VEHICLE, HIT CONCRETE MEDIAN, AND VEHICLE BOUNCED OFF MEDIAN AND HIT RIGHT GUARDRAIL. ALSO, VEHICLE CAUGHT ON FIRE, FIRE DEPARTM
I WAS INVOLVED IN AN ACCIDENT MAY 28, 2002 IN WHICH BOTH VEHICLES MADE CONTACT AT THEIR LEFT FRONT CORNERS. TOTAL VEHICLE SPEED WAS AT LEAST 40 MPH AT CONTACT AND MAYBE HIGHER. THE OTHER VEHICLE'S A
I AND MY PASSENGER WERE IN AN ACCIDENT ABOUT A YEAR AGO, A VERY HARD FRONT END IMPACT, AND NONE OF THE AIR BAGS DEPLOYED. WE WERE BOTH TRANSPORTED TO THE ER BY AMBULANCE, I HIT THE STEERING WHEEL HARD
Showing the 5 most serious of 626 complaints filed with NHTSA.
