2018 Buick Regal Sportback Service and Repair Manual

This factory service and repair manual for the 2018 Buick Regal Sportback covers the 4-door hatchback body, which came in five trims: Base, Essence, GS, Preferred and Preferred II. Two gasoline engines are listed. One is the turbocharged 2.0L inline-four with dual overhead camshafts; the other is the 3.6L V6, also DOHC but naturally aspirated. Procedures, specifications and torque values follow both engines, with diagnostics and wiring diagrams for the fuel system, ignition and electrical system.

Engines covered

• 2.0L inline-four (122 cu in) — DOHC, turbocharged, gasoline
• 3.6L V6 (222 cu in) — DOHC, naturally aspirated, gasoline

Body styles covered

• 4-door hatchback

Trims covered

• Base
• Essence
• GS
• Preferred
• Preferred II

Known issues on the 2018 Regal Sportback. For the 2018 Regal Sportback, the key systems are the turbocharged 2.0L inline-four and the naturally aspirated 3.6L V6, both gasoline DOHC engines, feeding a hatchback body with five trim levels. The manual supplies engine and cooling system procedures and torque values for each engine, fuel system and ignition diagnostics, transmission and drivetrain specifications, and service data for the brakes, suspension and steering. Wiring diagrams cover the electrical system across the Base, Essence, GS, Preferred and Preferred II trims.