2010 Buick LaCrosse Owner's Manual - Page 146

6-2 Infotainment System The vehicle has Retained Accessory Power (RAP). With RAP, the audio system can be played even after the ignition is turned off. See Retained Accessory Power (RAP) on page 8‑20 for more information. For more information, see Defensive Driving on page 8‑3. Notice: Contact your dealer/ retailer before adding any equipment. Adding audio or communication equipment could interfere with the operation of the vehicle's engine, radio, or other systems, and could damage them. Follow federal rules covering mobile radio and telephone equipment. Theft-Deterrent Feature The theft-deterrent feature works by learning a portion of the Vehicle Identification Number (VIN) to the infotainment system. The infotainment system does not operate if it is stolen or moved to a different vehicle. Navigation/Radio System For vehicles with a navigation radio system, see the separate Navigation System manual.