2003 Buick LeSabre Owner's Manual - Page 139
2003 Buick LeSabre Manual
Page 139 highlights
Front Reading Lamps Power will be restored for an additional 10 minutes if any door is opened, the trunk is opened or the courtesy lamp switch is turned on. To restore power back to the cigarette lighters the ignition must be turned back to RUN. Battery Load Management The battery load management feature is designed to monitor the vehicle's electrical load and determine when the battery is in a heavy discharge condition. During times of high electrical loading, the engine may idle at a higher rpm setting than normal to make sure the battery charges. High electrical loads may occur when several of the following are on: headlamps, high beams, rear window defogger, fan at high speed, heated seats (if equipped) and engine cooling fans. If your vehicle's battery remains in a heavy discharge condition for a long period of time, the fan, rear defogger, heated seats and heated mirrors will be disabled and the DIC will display BATTERY SAVER ACTIVE. This can happen either under long periods of idling or low speed driving with high electrical loading, or in the event of a charging system fault. The front reading lamps, located on the headliner, are turned on or off by pressing one of the buttons located near each lamp. Inadvertent Power Battery Saver This feature is designed to protect your vehicle's battery against drainage from the interior lamps, trunk lamp, glove box lamp, cigarette lighters or garage door opener. When the ignition is turned off, the power to these features will automatically turn off after 10 minutes. 3-18