2004 Buick LeSabre 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
- Custom Sedan 4-Door
- Limited Sedan 4-Door
Engines covered
- 3.8L 3800CC 231Cu. In. V6 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
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 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
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
Showing the 8 most recent of 228 technical service bulletins on file with NHTSA.
I WAS GOING EAST ON A ONELANE STREET,WHEN THE OTHER CAR MADE A LEFT HAND TURN IN FRONT OF ME CAUSING THE ACCIDENT,MY AIRBAG DID NOT DEPLOY CAUSING MY SEATBELT TO TIGHTEN AROUND MY LOWER BACK AND CREAT
TL* THE CONTACT OWNS A 2004 BUICK LESABRE. WHILE DRIVING 60 MILES PER HOUR DURING SLIPPERY WEATHER CONDITIONS THE CONTACT LOST CONTROL OF THE VEHICLE, CRASHED INTO A DITCH AND A TREE. THE AIR BAGS DID
INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) ACCIDENT 05/02/10 ON ILLINOIS ROUTE 83 AND WASHING TO STREET IN GRAYSLAKE IL. THE INCIDENT INVOLVED A 2004
MY BROTHER WAS DRIVING MY 2004 BUICK LESABRE CUSTOM AND CRASHED INTO IRON GATE AND THE AIR BAG DID NOT DEPLOY. *TR
TL* THE CONTACT OWNED A 2004 BUICK LESABRE. WHILE PARKED IN THE DRIVEWAY, THE VEHICLE CAUGHT ON FIRE. THE CONTACT STATED THAT THE FIRE STARTED UNDER THE HOOD. THE FIRE DEPARTMENT WAS NOTIFIED AND WAS
Showing the 5 most serious of 212 complaints filed with NHTSA.
