2017 Buick LaCrosse Service and Repair Manual

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Factory-Grade Data

2017 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
  • Preferred Sedan 4-Door
  • Essence Sedan 4-Door

Engines covered

  • 3.6L 222Cu. 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

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Vehicle Safety Data

2017 Buick LaCrosse Recalls & Complaints

NHTSA #17V11600023/02/2017Component: STEERING:ELECTRIC POWER ASSIST SYSTEM

General Motors LLC (GM) is recalling certain 2017 Buick LaCrosse vehicles. The electrical connectors for the Electronic Power Steering (EPS) system may not be properly sealed. As a result, water may

Consequence

A loss of power steering may result in increased manual steering effort, increasing the risk of a cr

Remedy

GM will notify owners, and dealers will inspect correct the seal seating and secure the EPS connecto

NHTSA #17V26700021/04/2017Component: SUSPENSION:REAR

General Motors LLC (C) is recalling certain 2017 Buick LaCrosse vehicles. The rear suspension toe-links may have been incorrectly installed, and, as a result, they may loosen and disconnect from the

Consequence

If a rear-suspension toe-link disconnects, it may cause a loss of vehicle control, increasing the ri

Remedy

GM will notify owners, and dealers will inspect the left and right rear suspension toe-link assembli

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

TSB #11024485

The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.

Showing the 8 most recent of 1201 technical service bulletins on file with NHTSA.

20260509Component: SUSPENSION

This vehicle has major suspension issues containing the complete strut assembly, lower control arms, and strut yokes/forks, which can not be replaced due to the discontinuance of the vehicle and parts

20240823Component: SUSPENSION

The contact owns a 2017 Buick Lacrosse. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from the front driver's side wheel well. The contact stated th

20240720Component: AIR BAGS

The air bag warning light in the dash came on intermittently during driving. I took the vehicle to the dealer for service December 27, 2023, since it was a safety issue that the authorized dealer need

20240716Component: ELECTRICAL SYSTEM

The amplifier stopped working and all the sound comes through the amp including but not limited to seatbelt, door ajar, rear seat reminder, blinkers, back up sounds, and any and all sounds that the ca

20240624Component: SUSPENSION

The contact owns a 2017 Buick Lacrosse. The contact stated while driving at various speeds, the vehicle was making an abnormally loud stomping sound and the wheels were shuddering significantly. The c

Showing the 5 most serious of 42 complaints filed with NHTSA.

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