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.

Automatic transmission: A wire for the transmission's torque converter clutch may rub on its clip and short out causing harsh shifting. (2006)

Check-engine light: The check engine (service engine soon) light may come on if the car idles over 30 minutes requiring reprogramming of the powertrain control module. (2006)

Hard starting: On vehicles equipped with 3.8L engine, a wiring harness may rub on the transmission sifter cable causing a no-start condition. (2006)

Keyless entry: The remote keyless entry system may not work or may work poorly and/or the tire pressure warning may come on due to a malfunction of the receiver and antenna. (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 Lucerne w/V8: Power steering hose connectors may leak fluid, which could cause loss of steering assist and increased steering effort at low speeds; if fluid contacted hot engine, fire could occur.