2010 GMC Terrain Service and Repair Manual

This factory service and repair manual for the 2010 GMC Terrain covers the first year of the four-door sport utility, sold in SLE and SLT trim with two gasoline engines: a naturally aspirated 3.0L DOHC V6 of 182 cubic inches and a 2.4L DOHC inline-four of 145 cubic inches. The two share a platform but almost nothing under the hood, and the manual keeps them separate where it matters, giving each its own engine mechanical procedures, published specifications, torque values and diagnostic routines alongside the shared chassis and body coverage.

Engines covered

• 3.0L V6 (182 cu in) — DOHC, naturally aspirated, gasoline
• 2.4L inline-four (145 cu in) — DOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sport utility

Trims covered

• SLE
• SLT

Known issues on the 2010 Terrain. Three recalls stand on the federal record. On power-adjustable front seats the bolt securing the height adjuster can work loose and drop out, letting the seat fall unexpectedly under the driver; a software fault in the center instrument panel can leave the heating and air conditioning unable to defrost or defog the windshield; and the headlight housings throw a reflection bright enough to glare oncoming drivers. Owners have filed 295 complaints, clustering on the engine, the power train and the electrical system — the same territory the manual's diagnostics, wiring diagrams and torque specifications cover in depth.