See also:

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 ...

Automatic Door Unlock
The doors will automatically unlock when the shift lever is moved into P (Park). See Vehicle Personalization . ...

Automatic Dimming Mirror Operation
The automatic dimming mirror function is turned on automatically each time the ignition is started. To operate the automatic dimming mirror, do the following: 1. Make sure the green indicator ...