2021 Chevrolet Blazer Service and Repair Manual

This factory service and repair manual for the 2021 Chevrolet Blazer sorts a six-trim range — Base, L, LT, Premier, RS and True North — around three gasoline engines in one four-door sport utility body: a naturally aspirated 2.5-liter inline-four of 153 cubic inches, a naturally aspirated 3.6-liter V6 of 222 cubic inches, and a turbocharged 2.0-liter inline-four of 122 cubic inches. Each carries its own torque figures, service intervals and diagnostic trouble trees, and the chassis and body sections then serve all three.

Engines covered

• 2.5L inline-four (153 cu in) — DOHC, naturally aspirated, gasoline
• 3.6L V6 (222 cu in) — DOHC, naturally aspirated, gasoline
• 2.0L inline-four (122 cu in) — DOHC, turbocharged, gasoline

Body styles covered

• 4-door sport utility

Trims covered

• Base
• L
• LT
• Premier
• RS
• True North

Known issues on the 2021 Blazer. One recall is on the federal record: incorrect bolts may have been used to attach a seat belt assembly to the vehicle, and a belt anchored with the wrong fastener cannot be counted on to hold an occupant in a crash. It is a reminder of why fastener specifications matter, and this manual gives them for the restraint anchorages along with every other threaded joint. Complaints total 130, led by the electrical system at 28, with the engine and the service brakes tied at 17.