See also:

Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier for others to see the front of your vehicle during the day. DRL can be helpful in many different driving conditions, but they can be especially helpf ...

Fog Lamps
To turn on the fog lamps, the ignition and the headlamps or parking lamps must be on. If the fog lamps are turned on while the exterior lamp switch is in the AUTO position, the headlamps come on ...

Interactive Drive Control System
Buick Regal's Interactive Drive Control System chassis technology (available on models with the available 2.0L turbo engine) offers enhanced vehicle stability and greater driving safety. It is des ...