2007 Buick LaCrosse Service and Repair Manual

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Covers all 2007 LaCrosse trims — CXL Sedan 4-Door, CX Sedan 4-Door, CXS Sedan 4-Door ·
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2007 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
  • CXS Sedan 4-Door

Engines covered

  • 3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally Aspirated
  • 3.6L 3564CC 217Cu. In. V6 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
NHTSA #06V41900031/10/2006Component: FUEL SYSTEM, GASOLINE:STORAGE

ON CERTAIN VEHICLES, THE FUEL TANK IS MISSING THE ADHESIVE LAYER THAT BONDS THE BARRIER LAYER TO THE OUTER SHELL OF THE FUEL TANK.

Consequence

WITH THIS CONDITION, FUEL AND/OR FUEL VAPORS COULD SEEP OUT BETWEEN THE LAYERS, INCREASING THE RISK

Remedy

DEALERS WILL INSPECT THE SERIAL NUMBER ON THE FUEL TANK AND REPLACE THE FUEL TANK IF NECESSARY. THE

NHTSA #09E00500017/02/2009Component: STEERING

DORMAN IS RECALLING 979 STEERING KNUCKLES, DORMAN P/NOS. 697-902 AND 697-903, SOLD UNDER DORMAN'S "OE SOLUTIONSTM" BRAND NAME, AND NAPA P/NOS. 7-8502 AND 7-8503 WHICH WERE SOLD FOR REPLACEM

Consequence

A BROKEN STEERING KNUCKLE COULD RESULT IN LOSS OF STEERING CONTROL AND A POSSIBLE CRASH WITHOUT WARN

Remedy

DORMAN WILL NOTIFY OWNERS AND REPLACE THE DEFECTIVE STEERING KNUCKLES FREE OF CHARGE AND REIMBURSE T

TSB #11021792

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

TSB #11020816

This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.

TSB #11019074

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.

TSB #11019073

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.

TSB #11019072

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.

TSB #11014455

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

TSB #11011782

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

TSB #11009531

This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.

Showing the 8 most recent of 292 technical service bulletins on file with NHTSA.

20160311Component: AIR BAGSCrash reported2 injured

TL* THE CONTACT OWNED A 2007 BUICK LACROSSE. WHILE DRIVING APPROXIMATELY 3 MPH, THE CONTACT'S VEHICLE WAS STRUCK BY ANOTHER VEHICLE. THE AIR BAGS DEPLOYED. A POLICE REPORT WAS FILED. THE VEHICLE WAS T

20210820Component: SERVICE BRAKESCrash reported

AT 3:30PM THE DRIVER APPLIED THE BRAKES IN A LINE OF CARS AT ABOUT 25 MPH. THE PEDAL WENT TO THE FLOOR AND THE BRAKES FAILED COMPLETELY. THE CAR THEN ACCELLERATED INDEPENDENTLY AND STRUCK ANOTHER C

20210820Component: AIR BAGSCrash reported

AT 3:30PM THE DRIVER APPLIED THE BRAKES IN A LINE OF CARS AT ABOUT 25 MPH. THE PEDAL WENT TO THE FLOOR AND THE BRAKES FAILED COMPLETELY. THE CAR THEN ACCELLERATED INDEPENDENTLY AND STRUCK ANOTHER C

20151217Component: EXTERIOR LIGHTINGCrash reported

LOW BEAM HEADLIGHTS CAN GO OUT AT ANY TIME WHILE DRIVING. STARTED HAPPENING ABOUT 7/2013. WOULD ONLY DRIVE DURING DAY/ HAD MODULE REPLACED A YEAR AGO WHEN RECALL NOTICE CAME OUT AND HAD LIGHTS FOR A A

20140818Component: ENGINECrash reported

TL* THE CONTACT OWNS A 2007 BUICK LACROSSE. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 60 MPH, SHE HIT A POT HOLE AND THE VEHICLE STALLED. THE VEHICLE COASTED TO THE SHOULDER OF THE ROAD. THE VEHI

Showing the 5 most serious of 326 complaints filed with NHTSA.

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