Description
Factory Buick LaCrosse Workshop Manual (2012-2016)
This factory-level service manual covers every second-generation Buick LaCrosse built between 2012 and 2016, giving US owners and technicians the complete repair, diagnostic, and wiring information needed to service these GM Epsilon II-based sedans at home or in the shop.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol / Hybrid | 2.4L LUK Ecotec (eAssist mild hybrid), 3.6L LFX V6 |
| Diesel | N/A |
| Transmissions | 6-speed automatic 6T40, 6-speed automatic 6T70 |
| Drive | FWD and AWD |
| Model Years | 2012, 2013, 2014, 2015, 2016 |
| Badge Twins | N/A |
Common LaCrosse Repairs Covered
| System | Procedures |
|---|---|
| 3.6L LFX Timing Chain | Timing chain tensioner inspection, chain replacement, and cam phaser service – a known wear item on the LFX after high mileage |
| eAssist Mild Hybrid System | Belt alternator/starter (BAS) unit diagnostics, 115V lithium battery module replacement, and eAssist DTC resolution |
| 6T70 Transmission | Valve body removal, solenoid replacement, fluid and filter service, and shift quality fault diagnosis |
| Suspension & Steering | Front strut and rear shock replacement, stabilizer link service, electronic power steering calibration |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Is the 2.4L eAssist hybrid system fully covered in this manual?
Yes. The manual includes complete procedures for the 2.4L LUK eAssist mild hybrid setup, including the belt alternator/starter unit, the 115V lithium-ion battery pack, regenerative braking calibration, and all related diagnostic trouble code (DTC) charts specific to the hybrid system found in 2012-2016 LaCrosse models.
Does this manual cover both FWD and AWD LaCrosse variants?
Absolutely. Both front-wheel drive and all-wheel drive configurations used on the second-generation LaCrosse are addressed, including AWD transfer unit service, rear axle procedures, and drivetrain-specific wiring diagrams across all model years from 2012 through 2016.
Are wiring diagrams and electrical schematics included?
Yes. Full electrical coverage includes engine management, transmission controls, ABS/stability control, airbag systems, IntelliLink infotainment, climate control, lighting circuits, and more. Each schematic details connector locations, wire colors, pin assignments, and ground point positions to speed up fault diagnosis.
What format is the manual?
The manual is delivered as a PDF file available for instant download after purchase. It is fully searchable and compatible with Windows, Mac, iOS, and Android devices. Individual pages or entire sections can be printed for use in the garage, and the file may be saved on multiple devices for convenient access.
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