2025 Chevrolet Trailblazer Service and Repair Manual

After its 2024 update brought a larger touchscreen and fresh styling, the Trailblazer enters 2025 largely unchanged apart from new paint colors. Front-wheel-drive models use a turbocharged 1.2L three-cylinder with a continuously variable transmission, while all-wheel-drive models get a turbocharged 1.3L three-cylinder and a nine-speed automatic. Trims are LS, LT, ACTIV and RS. Two engines and two transmissions mean fluid capacities, service intervals and torque values differ between otherwise identical SUVs, and this factory service and repair manual separates them, with procedures, wiring diagrams, diagnostics and maintenance schedules for each drivetrain.

Engines covered

• 1.2L inline-three — DOHC, turbocharged, gasoline
• 1.3L inline-three — DOHC, turbocharged, gasoline

Body styles covered

• 4-door sport utility

Trims covered

• ACTIV
• LS
• LT
• RS

Known issues on the 2025 Trailblazer. One recall is on federal record: the rearview camera screen may display a distorted or blank image, reducing visibility behind the vehicle. Owners have lodged 22 complaints, mainly against the electrical system, the power train and the engine. Camera wiring, transmission and engine diagnostics are set out in this manual with the relevant specifications.