2010 Chevrolet HHR Service and Repair Manual

This factory service and repair manual for the 2010 Chevrolet HHR is written for five trims, LS, LS Panel, LT, LT Panel and SS, in two-door and four-door wagon form, with three DOHC inline-fours between them: a turbocharged 2.0L of 122 cubic inches and naturally aspirated flex-fuel 2.2L and 2.4L units of 134 and 145. The turbocharged engine and the flex-fuel pair need separate fuel, ignition and emissions data, and each is given its own specifications, torque values and diagnostic charts.

Engines covered

• 2.0L inline-four (122 cu in) — DOHC, turbocharged, gasoline
• 2.2L inline-four (134 cu in) — DOHC, naturally aspirated, flex-fuel
• 2.4L inline-four (145 cu in) — DOHC, naturally aspirated, flex-fuel

Body styles covered

• 4-door wagon
• 2-door wagon

Trims covered

• LS
• LS Panel
• LT
• LT Panel
• SS

Known issues on the 2010 HHR. Four recalls sit on the federal record for this model year. Two of them describe control being lost while driving: a sudden loss of electric power steering assist on cars without the turbocharged engine, which makes low-speed steering heavy without warning, and an ignition switch that a loaded key ring can drag out of run, cutting the engine and leaving the air bags inert. A third lets the key come out with the switch not off, so the car can roll away, and the fourth covers replacement switches with the same flaw. Steering dominates the 515 complaints with 231.