2014 Buick LaCrosse Service and Repair Manual

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Covers all 2014 LaCrosse trims — Premium Sedan 4-Door, Base Sedan 4-Door, Leather Sedan 4-Door ·
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2014 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

  • Premium Sedan 4-Door
  • Base Sedan 4-Door
  • Leather Sedan 4-Door

Engines covered

  • 2.4L 2384CC 145Cu. In. l4 MILD HYBRID EV-GAS (MHEV) DOHC Naturally Aspirated
  • 3.6L 3564CC 217Cu. In. V6 FLEX 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 #17V43700010/07/2017Component: AIR BAGS:FRONTAL

General Motors LLC (GM) is recalling certain model year 2014-2016 Buick Lacrosse and Chevrolet Spark EV, Caprice PPV and SS vehicles, 2014-2017 Buick Encore and Chevrolet Corvette, Silverado 1500 and

Consequence

A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessi

Remedy

GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous

NHTSA #16V65100008/09/2016Component: AIR BAGS:FRONTAL

General Motors LLC (GM) is recalling certain model year 2015-2017 Chevrolet Silverado 2500 HD, 3500 HD, Tahoe, Suburban, GMC Sierra 2500 HD and 3500 HD, GMC Yukon, GMC Yukon XL, Cadillac Escalade and

Consequence

A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessi

Remedy

GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous

TSB #11032947

This document provides the technician with a diagnostic tip if the vehicle stalls and set diagnostic trouble code P0191 and may also set P0172. The diagnostic tip has the technician inspect the high pressure fuel pump body markings to confi

TSB #11030974

This preliminary information communicates information about how to determine if a wheel and tires size change is available.

TSB #11030092

This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.

TSB #11030091

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

TSB #11027601

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

TSB #11026104

This service bulletin provides information on Tire Sidewall Irregularities.

TSB #11026017

This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.

TSB #11025755

This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customers vehicles that exhibit vibration conditions without utilizing the s

Showing the 8 most recent of 750 technical service bulletins on file with NHTSA.

20190319Component: AIR BAGSCrash reported1 injured

WAS IN A ACCIDENT 2/16 SPEED LIMIT 40 DRIVING ON CITY STREET. CAR IN FRONT OF ME STOPPED IN MIDDLE OF THE RD AND STARTED BACKING UP TRIED TO AVOID COLLISION AND STILL HAD IMPACT. THE AIRBAGS DID NOT

20190319Component: SERVICE BRAKESCrash reported1 injured

WAS IN A ACCIDENT 2/16 SPEED LIMIT 40 DRIVING ON CITY STREET. CAR IN FRONT OF ME STOPPED IN MIDDLE OF THE RD AND STARTED BACKING UP TRIED TO AVOID COLLISION AND STILL HAD IMPACT. THE AIRBAGS DID NOT

20190319Component: ENGINECrash reported1 injured

WAS IN A ACCIDENT 2/16 SPEED LIMIT 40 DRIVING ON CITY STREET. CAR IN FRONT OF ME STOPPED IN MIDDLE OF THE RD AND STARTED BACKING UP TRIED TO AVOID COLLISION AND STILL HAD IMPACT. THE AIRBAGS DID NOT

20161208Component: AIR BAGSCrash reported1 injured

TL* THE CONTACT OWNS A 2014 BUICK LACROSSE. WHILE DRIVING APPROXIMATELY 25 MPH, ANOTHER VEHICLE DROVE THROUGH A STOP SIGN AND CRASHED INTO THE CONTACT'S VEHICLE. THE AIR BAGS FAILED TO DEPLOY. THE CON

20161026Component: AIR BAGSCrash reported1 injured

TL* THE CONTACT OWNS A 2014 BUICK LACROSSE. ANOTHER VEHICLE CRASHED HEAD ON INTO THE CONTACT'S VEHICLE WHILE IT WAS STATIONARY. THE AIR BAGS FAILED TO DEPLOY. THE CONTACT SUSTAINED BRUISES TO THE STOM

Showing the 5 most serious of 89 complaints filed with NHTSA.

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