See also:

OnStar®
For vehicles with an active OnStar subscription, OnStar uses several innovative technologies and live Advisors to provide a wide range of safety, security, navigation, diagnostics, and calling servi ...

Performance
The Regal I tested packs the base engine — a 2.4-liter four-cylinder that's good for 182 horsepower. There's no way around it: This is a sedate engine. You probably won't notice that it lacks po ...

Retained Accessory Power (RAP)
These vehicle accessories can be used for up to 10 minutes after the engine is turned off: • Audio System • Power Windows • Sunroof (If Equipped) • Auxiliary Power Outlet Power to the ...