2008 Buick Lucerne 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
- CXL Sedan 4-Door
- CX Sedan 4-Door
- CXS Sedan 4-Door
- Super Sedan 4-Door
Engines covered
- 3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally Aspirated
- 4.6L 281Cu. In. V8 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
GM IS RECALLING 857,735 MY 2006-2008 BUICK LUCERNE; CADILLAC DTS; HUMMER H2; MY 2007-2008 CADILLAC ESCALADE, ESCALADE ESV, ESCALADE EXT; CHEVROLET AVALANCHE, SILVERADO, SUBURBAN, TAHOE; GMC ACADIA, SI
THIS MAY CAUSE OTHER ELECTRICAL FEATURES TO MALFUNCTION, CREATE AN ODOR, OR CAUSE SMOKE INCREASING T
DEALERS WILL INSTALL A WIRE HARNESS WITH AN IN-LINE FUSE FREE OF CHARGE. THE RECALL BEGAN ON SEPTEM
GM IS RECALLING CERTAIN MODEL YEAR 2006-2009 BUICK, LUCERNE; CADILLAC DTS; HUMMER H2; MODEL YEAR 2008-2009 BUICK ENCLAVE; CADILLAC CTS; MODEL YEAR 2007-2009 CADILLAC ESCALADE, ESCALADE ESV, ESCALADE E
IT IS POSSIBLE FOR THE HEATED WASHER MODULE TO IGNITE AND A FIRE MAY OCCUR.
DEALERS WILL PERMANENTLY DISABLE AND REMOVE THE HEATED WASHER FLUID MODULE. AN UPDATED PAGE FOR THE
New Vehicle Monitoring Programs Section in IVH
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble
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 the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
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 communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking
Showing the 8 most recent of 325 technical service bulletins on file with NHTSA.
2008 BUICK LUCERNE. CONSUMER WRITES IN REGARDS TO POWER STEERING AND BRAKE FAILURE, THAT WAS A CONSTANT ISSUE. *TGW THE CONSUMER WAS INVOLVED IN AN ACCIDENT, WHERE THE STEERING AND BRAKES FAILED. *JB
2008 BUICK LUCERNE. CONSUMER WRITES IN REGARDS TO POWER STEERING AND BRAKE FAILURE, THAT WAS A CONSTANT ISSUE. *TGW THE CONSUMER WAS INVOLVED IN AN ACCIDENT, WHERE THE STEERING AND BRAKES FAILED. *JB
TL* THE CONTACT OWNS A 2008 BUICK LUCERNE. WHILE DRIVING APPROXIMATELY 30 MPH AND CHANGING LANES, ANOTHER VEHICLE CRASHED INTO THE DRIVER SIDE OF THE CONTACT'S VEHICLE. THE SIDE AIR BAGS FAILED TO DEP
TL* THE CONTACT OWNS A 2008 BUICK LUCERNE. WHILE DRIVING APPROXIMATELY 30 MPH AND CHANGING LANES, ANOTHER VEHICLE CRASHED INTO THE DRIVER SIDE OF THE CONTACT'S VEHICLE. THE SIDE AIR BAGS FAILED TO DEP
I RAN OFF ROAD AND HIT A TREE. NOTED WHITE SMOKE BUT AIRBAG DID NOT DEPLOY. SEAT BELT IN USE. ONLY MINOR INJURIES. INSURANCE COMPANY TOTALED CAR. REPORTED INCIDENT TO GM. THEY REPLIED WITH PHONE NUMBE
Showing the 5 most serious of 320 complaints filed with NHTSA.
