2019 GMC Terrain Service and Repair Manual

This factory service and repair manual for the 2019 GMC Terrain covers Denali, SL, SLE and SLT versions of the four-door sport utility, all of them turbocharged: the 1.5L and 2.0L gasoline inline-fours of 91 and 122 cubic inches, and the 1.6L inline-four diesel of 98. Three distinct engines in one body shell means three sets of clearances, service intervals and fuel system procedures, and the manual keeps them apart while sharing the chassis, brake, restraint and body content, each backed by published specifications and torque values.

Engines covered

• 1.5L inline-four (91 cu in) — DOHC, turbocharged, gasoline
• 1.6L inline-four (98 cu in) — DOHC, turbocharged, diesel
• 2.0L inline-four (122 cu in) — DOHC, turbocharged, gasoline

Body styles covered

• 4-door sport utility

Trims covered

• Denali
• SL
• SLE
• SLT

Known issues on the 2019 Terrain. Three recalls stand federally. Rear brake caliper pistons that received too little coating can develop gas pockets and give away rear braking performance; missing bolts on the start-stop accumulator endcap can let transmission oil escape, ending in a loss of propulsion; and the rear-right seat may carry insufficient welds on its head restraint bracket. The complaint record runs 181 filings, with the power train first, service brakes a close second and the electrical system third — brake hydraulics and transmission service are covered here in detail.