2007 Buick Lucerne Owner's Manual - Page 115

Key In the Ignition Never leave your vehicle with the keys inside, as it is an easy target for joy riders or thieves. If you leave the key in the ignition and park your vehicle, a chime will sound, when you open the driver's door. Always remember to remove your key from the ignition and take it with you. This will lock your ignition and transaxle. Also, always remember to lock the doors. The battery could be drained if you leave the key in the ignition while your vehicle is parked. You may not be able to start your vehicle after it has been parked for an extended period of time. Retained Accessory Power (RAP) After you turn the ignition off and remove the key, you will still have power to such accessories as the power windows, clock, radio, and if equipped, audio steering wheel controls and sunroof. The power to the accessories can last up to 10 minutes. The instrument panel cluster lights will stay on for a few seconds, then will go out. Once you open the driver's door, the power will shut off. Your vehicle has a feature designed to protect the battery against drainage. For more information see Inadvertent Power Battery Saver on page 177 and Electric Power Management on page 176. 115