2013 GMC Terrain Service and Repair Manual

This factory service and repair manual for the 2013 GMC Terrain marks the year the 3.6L DOHC V6 of 217 cubic inches replaced the smaller six alongside the 2.4L DOHC inline-four, and the year Denali joined SLE and SLT on the trim list. The body remains the four-door sport utility. A larger V6 changes cooling, exhaust and drivetrain loading, and the manual reflects that with engine-specific procedures, published specifications and torque values, plus wiring diagrams and diagnostics written for the systems as fitted.

Engines covered

• 2.4L inline-four (145 cu in) — DOHC, naturally aspirated, gasoline or flex-fuel
• 3.6L V6 (217 cu in) — DOHC, naturally aspirated, flex-fuel or gasoline

Body styles covered

• 4-door sport utility

Trims covered

• Denali
• SLE
• SLT

Known issues on the 2013 Terrain. Three recalls are recorded federally. Ball joints inside the windshield wiper module can corrode and wear until one or both wipers stop moving; the park lock lever can release the ignition key with the transmission out of Park, allowing a rollaway; and the headlight housings cast a reflection bright enough to glare oncoming traffic. Owners have logged 369 complaints, led heavily by the engine and followed by visibility and wipers and the power train — systems the manual covers with diagnostics, wiring diagrams and torque specifications.