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Under the hood
Unique with its all-four-cylinder powertrain, the Buick Regal relies on the excellent horsepower-per-liter ratio of the Ecotec engine family to deliver smart, on-demand performance that is also ve ...

Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF in each shift lever position. The ignition should turn to LOCK/OFF only when the shift lever is in P (Park). ...

Safety
Optional side curtain-type airbags incorporate a new rollover sensing system for 2006. All seating positions have three-point safety belts, and all-disc antilock brakes are standard. GM's StabiliT ...