Consumer Guide's® Auto Editors have scoured repair bulletins and questioned mechanics to search for commonly occurring problems for a particular vehicle. In some cases we also give possible manufacturer-suggested solutions. In many instances these trouble spots are Technical Service Bulletins posted by the manufacturer, however, we have our own expert looking at additional vehicle problems.

Engine noise: Growling sounds in the engine compartment when the A/C is running are caused by the high pressure line at the condenser outlet requiring a redesigned line. (2006)

Engine stalling: The engine may quit running because the driver inadvertently switches off the ignition with his/her knee, especially if a large, heavy key ring for which the company offers a cover for the ignition key. (2006)

Steering noise: A clunk that may also be felt in the steering wheel when turning may be due to insufficient lubrication in the steering intermediate shaft. (2006)

Steering problems: Power steering fuses are frequently blown due to improper jump starting when both cable leads are connected to the terminals of the underhood junction block because both terminals are positive. (2006-07)

This table lists costs of likely repairs for comparison with other vehicles. The dollar amount includes the cost of the part(s) and labor (based on $50 per hour) for the typical repair without extras or add-ons. Like the pricing information, replacement costs can vary widely depending on region. Expect charges at a new-car dealership to be slightly higher.

2006 Chevrolet HHR w/aftermarket leather seats: Testing has indicated that the aftermarket leather seat covers can cause the passenger sensing system to malfunction. If the passenger sensing system malfunctions, the front air bag on the passenger side may be disabled when it should be enabled, or enabled when it should be disabled. GM will purchase these vehicles for the full price paid for it (not exceeding the fair market value at the time it was bought), including taxes and fees, if the vehicle is returned to GM's possession by January 31, 2007. Through January 31, 2007, GM will also pay for the removal of any aftermarket accessories that may have been installed and return them to the customer.