2003 GMC Yukon Service and Repair Manual
2003 GMC Yukon 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
- Denali Sport Utility 4-Door
- SLT Sport Utility 4-Door
Engines covered
- 5.3L 5328CC 325Cu. In. V8 FLEX OHV Naturally Aspirated
- 5.3L 5328CC 325Cu. In. V8 GAS OHV Naturally Aspirated
- 4.8L 294Cu. In. V8 GAS OHV Naturally Aspirated
- 6.0L 5967CC 364Cu. In. V8 GAS OHV 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
ON CERTAIN CREW CAB PICKUP TRUCKS AND SPORT UTILITY VEHICLES, THE 2ND ROW CENTER OCCUPANT SEAT BELT ROUTING MAY MAKE IT DIFFICULT TO POSITION THE LAP PORTION OF THE SAFETY BELT LOW AROUND THE HIPS OF
A LAP PORTION OF THE SEAT BELT ROUTING THAT IS NOT LOW AND SNUG ON THE HIPS CAN ALLOW THE LAP BELT T
DEALERS WILL CUT OPEN THE GUIDE LOOP, REMOVE A PORTION OF THE LOOP, AND THEN THE REMAINING TWO SIDES
CERTAIN PICKUP TRUCK, VAN, AND MINI VAN CONVERSIONS EQUIPPED WITH SOUTHERN COMFORT BUILT RUNNING BOARDS THAT CONTAIN CERTAIN COURTESY LIGHTS MANUFACTURED BY AMERICAN TECHNOLOGY COMPONENTS, INC. THESE
THIS OVERHEATING CONDITION CAN CAUSE THE RUNNING BOARD TO MELT OR CAUSE A FIRE.
DEALERS WILL REPLACE THE WIRING HARNESS ON THESE RUNNING BOARDS. OWNER NOTIFICATION BEGAN MARCH 7,
CERTAIN SPORT UTILITY VEHICLES FAIL TO COMPLY WITH REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 214, "SIDE IMPACT PROTECTION." THESE VEHICLES ARE BUILT WITH FOUR WELDS ON THE REAR DOOR U
AS A RESULT, THE DOOR STRENGTH MAY BE DEGRADED DURING A SIDE IMPACT VEHICLE CRASH.
DEALERS WILL INSPECT THE WELDS ON THE LEFT REAR DOOR UPPER HINGE. IF A WELD IS FOUND OUT-OF-SPECIFI
CERTAIN SPORT UTILITY VEHICLES, PICKUP TRUCKS, AND PASSENGER VANS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 135, ?PASSENGER CAR BRAKE SYSTEMS.? SOME OF THESE V
CONSEQUENTLY, THE VALVE O-RING SEAL MAY FRACTURE. STEERING EFFORTS MAY BE SLIGHTLY INCREASED WHILE
DEALERS ARE TO REPLACE THE HYDRO-BOOST RELIEF VALVE. THE RECALL BEGAN ON JUNE 18, 2004. OWNERS S
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
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
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed fo
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
Showing the 8 most recent of 486 technical service bulletins on file with NHTSA.
DT*: THE CONTACT STATED WHILE DRIVING THERE WAS A SQUEALING NOISE THAT APPEARED TO BE COMING FROM THE BRAKES. DURING A NORMAL MAINTENANCE SERVICE, THE SERVICE DEALER DETERMINED THE SQUEALING NOISE WA
DT*: THE CONTACT STATED WHILE DRIVING THERE WAS A SQUEALING NOISE THAT APPEARED TO BE COMING FROM THE BRAKES. DURING A NORMAL MAINTENANCE SERVICE, THE SERVICE DEALER DETERMINED THE SQUEALING NOISE WA
WHILE DRIVING ON A RESIDENTIAL STREET CONSUMER FELL ASLEEP BEHIND THE WHEEL AND HIT ANOTHER VEHICLE ON THE FRONT DRIVER'S SIDE. SLIGHT INJURIES WERE SUSTAINED BY THE PASSENGERS OF THE OTHER VEHICLE.
DT*: THE CONTACT STATED THE VEHICLE WAS INVOLVED IN A T-BONE COLLISION AT 10MPH AND THE AIRBAGS DID NOT DEPLOY. THERE WAS NO PRE-BRAKING PRIOR TO IMPACT. ALTHOUGH THE OCCUPANTS WERE WEARING SEATBEL
I CROSSED OVER SUNSET AND GOT ON 77 S AT APPROXIMATELY 10:30 P.M. ALL OF A SUDDEN MY VEHICLE SPINNED OUT OF CONTROL. IT SKIDDED TO THE LEFT, I HAD NO CONTROL OF THE VEHICLE, IT SKIDDED BACK TO THE R
Showing the 5 most serious of 251 complaints filed with NHTSA.
