2009 Buick LaCrosse 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
- Super Sedan 4-Door
Engines covered
- 3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally Aspirated
- 5.3L 5328CC 325Cu. 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
This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if
If the key is not in the run position, the air bags may not deploy if the vehicle is involved in a c
GM will notify owners, and dealers will install two key rings and an insert in the key slot or a cov
General Motors LLC (GM) is recalling certain model year 2007 Pontiac Grand Prix, 2006-2009 Buick LaCrosse, 2006-2007 Buick Rainier, Chevrolet Trailblazer, GMC Envoy, 2006 Chevrolet Trailblazer EXT, GM
Headlamps that do not illuminate reduce the driver's ability to see the roadway and reduce the vehic
GM will notify owners, and dealers will replace the HDM, free of charge. The recall began on May 17
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 service bulletin provides a procedure to flush and bleed power steering system to correct a power steering noise or fluid leak concern that is caused during extremely low temperatures.
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
Showing the 8 most recent of 335 technical service bulletins on file with NHTSA.
LEFT HOME FOR LOCAL RESTAURANT ABOUT 7:AM ON MAY 8. TRAVELING DOWN HWY 2 LANE, MUST HAVE DROPPED WHEEL OFF PAVEMENT AND THE CAR WENT CRAZY. I DO NOT REMEMBER WHAT HAPPENED. THE ACCIDENT REPORT SAY
LEFT HOME FOR LOCAL RESTAURANT ABOUT 7:AM ON MAY 8. TRAVELING DOWN HWY 2 LANE, MUST HAVE DROPPED WHEEL OFF PAVEMENT AND THE CAR WENT CRAZY. I DO NOT REMEMBER WHAT HAPPENED. THE ACCIDENT REPORT SAY
I HAD COMPLETELY STOPPED MY VEHICLE IN A PARKING AREA AT A CONDOMINIUM COMPLEX WHERE I WAS DELIVERING A MEAL TO MY NEPHEW WHO RESIDES THERE. BECAUSE I HAD JUST RECENTLY LEARNED THAT SOMEONE FROM MY CO
WHILE ENTERING A PARKING LOT AT APPROXIMATELY 20 MPH VEHICLE SUDDENLY ACCELERATED AT VERY HIGH RPMS AND JUMPED THE CURB HITTING A TREE, EXTREME PRESSURE ON BRAKE PEDAL WOULD NOT STOP VEHICLE.. THIS WA
WHILE ENTERING A PARKING LOT AT APPROXIMATELY 20 MPH VEHICLE SUDDENLY ACCELERATED AT VERY HIGH RPMS AND JUMPED THE CURB HITTING A TREE, EXTREME PRESSURE ON BRAKE PEDAL WOULD NOT STOP VEHICLE.. THIS WA
Showing the 5 most serious of 146 complaints filed with NHTSA.
