The 2010 Chevrolet HHR is a distinctive compact vehicle, recognized for its retro-inspired styling and practical wagon-like utility. Built on the GM Delta platform, it offers a versatile interior with flexible cargo space, making it suitable for a variety of everyday needs. Available in trims ranging from the LS to the performance-oriented SS Turbocharged variant, the HHR features a choice of Ecotec engines, including a 2.2L, a 2.4L, and a potent 2.0L turbocharged option for the SS model, delivering power outputs from 150 hp up to 260 hp. Its unique design, combined with a comfortable ride and a range of available features, positioned it as a practical and stylish alternative in the compact segment.

This manual serves as a comprehensive guide for the 2010 Chevrolet HHR, covering essential operation, maintenance, and basic troubleshooting. It details the vehicle's powertrain, transmission, braking, suspension, steering, electrical systems, HVAC, and infotainment features. The manual includes information on routine maintenance procedures, user adjustments, and an overview of driver information systems. While it provides user-level understanding and basic diagnostic insights, it is not intended as a full repair manual with in-depth diagnostic procedures or detailed part replacement instructions. This guide is designed to assist owners and technicians in maintaining the HHR's optimal performance and longevity.