Description
Factory GMC Terrain Workshop Manual (2010–2017)
This factory-sourced service manual covers every first-generation GMC Terrain built for the US market between 2010 and 2017, spanning all trim levels from the base SL through the range-topping Denali.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | 2.4L Ecotec I4 (LAF/LEA), 3.0L V6 (LF1/LFW) |
| Diesel | N/A |
| Transmissions | 6-speed automatic (6T40 / 6T45 / 6T70) |
| Drive | FWD, AWD |
| Model Years | 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 |
| Badge Twins | Chevrolet Equinox (GMT699 platform) |
Common Terrain Repairs Covered
| System | Procedures |
|---|---|
| 2.4L Engine Oil Consumption | Piston ring diagnosis, cylinder leak-down test, oil consumption monitoring per GM bulletin |
| Timing Chain | Timing chain stretch inspection, tensioner replacement, cam phaser service on LAF/LEA engines |
| Transmission | 6T40/6T45 fluid and filter service, solenoid replacement, valve body removal and overhaul |
| HVAC & Water Intrusion | Evaporator drain clearing, blower motor replacement, cabin air filter housing seal inspection |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Is the 2.4L oil consumption issue addressed in this manual?
Yes. The 2.4L Ecotec (LAF/LEA) excessive oil consumption problem—flagged in multiple GM technical service bulletins—is covered through detailed piston ring inspection procedures, cylinder leak-down test sequences, and engine teardown specifications that allow you to assess and correct the root cause properly.
Does this manual cover the Chevrolet Equinox as well?
The first-generation Terrain shares the GMT699 platform with the Chevrolet Equinox, and a large portion of the mechanical procedures overlap. However, this manual is published specifically for the GMC Terrain designation, trim levels, and associated part numbers. A separate Equinox-specific manual is recommended for that vehicle.
Are wiring diagrams and ABS/stability control diagnostics included?
Full electrical coverage is provided, including circuit schematics with connector pinouts, wire colors, and splice locations for the engine management system, ABS, StabiliTrak stability control, airbag system, lighting, and climate control. Systematic fault-finding routines guide technicians through each circuit step by step.
What format is the manual?
The manual is delivered as a fully searchable PDF document compatible with Windows, Mac, Linux, Android, and iOS. Individual pages or entire chapters can be printed as needed, and keyword search makes locating specific torque specs or procedures fast and straightforward.




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