2013 Chevrolet Express 1500 Cargo Owner Manual - Page 156

7-2 Infotainment System Notice: The chime signals related to safety belts, parking brake, and other functions of the vehicle operate through the radio/ entertainment system. If that equipment is replaced or additional equipment is added to the vehicle, the chimes may not work. Make sure that replacement or additional equipment is compatible with the vehicle before installing it. See Accessories and Modifications on page 10‑3. 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 9‑19 for more information. 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.