2012 Buick LaCrosse Service & Repair Manual

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The service and repair manual for the 2012 Buick LaCrosse — 2.4L I4 and 3.6L V6 engines, 6 trims. Matched to this exact model year, so the specifications and sequences are the ones Buick published for your car, not figures carried over from a neighbouring year.

01 / FitmentWhat this manual covers

Model year2012
Engines
2.4L I4 — 145 cu in, DOHC
3.6L V6 — 217 cu in, DOHC
TrimsPremium Sedan 4-Door · Base Sedan 4-Door · Leather Sedan 4-Door · Convenience Sedan 4-Door · CXS Sedan 4-Door · Touring Sedan 4-Door
Federal record3 recalls · 298 complaints · 782 technical service bulletins (refreshed 2026-08-21)

02 / InsideSample pages from the 2012 LaCrosse manual

2012 Buick LaCrosse service manual page 12012 Buick LaCrosse service manual page 22012 Buick LaCrosse service manual page 32012 Buick LaCrosse service manual page 42012 Buick LaCrosse service manual page 52012 Buick LaCrosse service manual page 6

03 / ContentsSections in the manual

  • Quick Lookups 697
  • General Information 1,855
  • Accessories & Equipment 5,981
  • Heating, Ventilation & A/C (HVAC) 246
  • Body & Frame 2,085
  • Hybrid/Electric Powertrain 1,098
  • Brakes 725
  • Drivelines & Axles 176
  • Restraints 288
  • Electrical 2,925
  • Steering 377
  • Engine Mechanical 521
  • Suspension 268
  • Engine Performance 3,564
  • Transmission 900
  • Rear Fist Pass - 111
  • Second Pass - Loosen 45
  • Final Pass - 184

04 / Known issuesRecalls on federal record for the 2012 LaCrosse

  1. Suspension — rear · 21V00F000
    A rear toe link fracture may reduce the driver's ability to control the vehicle, increasing the risk.
  2. Electrical System · 13V173000
    If the vehicle is continued to be driven, the engine may stall and/or the vehicle may not start. in.
  3. Electronic Stability Control (Esc) · 11V404000
    The improper diagnosing may cause the esc to falsely activate, resulting in sudden changes in vehicl.

Owners have filed 298 complaints and Buick has issued 782 technical service bulletins for the 2012 LaCrosse. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.

FAQQuestions about the 2012 LaCrosse manual

Is this manual specific to the 2012 LaCrosse?

Yes. It is the OEM manual matched to the 2012 model year, covering the 2.4L I4 and 3.6L V6 across the Premium Sedan 4-Door, Base Sedan 4-Door, Leather Sedan 4-Door, Convenience Sedan 4-Door, CXS Sedan 4-Door, Touring Sedan 4-Door trims. Specifications and procedure sequences are the ones Buick published for this year.

What 2012 LaCrosse problems does it help with?

3 recalls are on federal record for the 2012 LaCrosse, covering suspension, electrical system, electronic stability control (esc). The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Buick dealers.

Does it include 2012 LaCrosse wiring diagrams?

Yes — the complete wiring diagrams for the 2012 build, alongside repair procedures, specifications and diagnostics.

Is it a subscription?

No. $29.99 once and the manual is yours. It is a digital manual — nothing ships; access details arrive by email after checkout and it works on any device.

RelatedOther LaCrosse years and 2012 Buick models

2018 LaCrosse · 2017 LaCrosse · 2016 LaCrosse · 2015 LaCrosse · 2014 LaCrosse · 2013 LaCrosse · 2011 LaCrosse · 2010 LaCrosse · 2009 LaCrosse · 2008 LaCrosse · 2007 LaCrosse · 2006 LaCrosse · all 15 years

2012 Buick Enclave · 2012 Buick Regal · 2012 Buick Verano · every 2012 model