2000 Pontiac Bonneville Owner's Manual - Page 111

If your vehicle's battery remains in a heavy discharge condition for a long period of time, the blower 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. Monitor the battery voltage when in the BATTERY SAVER ACTIVE mode. Electrochromic Day/Night Rearview Mirror (If Equipped) D If the voltmeter remains in the red area (below 11 volts) when driving then have the charging system serviced immediately. D If the voltage increases above 12 volts then the battery needs to be recharged. Try driving on the highway with as few electrical accessories on as possible. Your vehicle may have an automatic electrochromic day/night rearview mirror. When this feature is turned on, the mirror automatically changes to reduce glare from headlamps behind you. A photocell on the mirror senses when it is becoming dark outside. Another photocell built into the mirror face senses when headlamps are behind you. At night, when the glare is too high, the mirror will gradually darken to reduce glare (this change may take a few seconds). The mirror will return to its clear daytime state when the glare is reduced. Mirrors Inside Day/Night Manual Rearview Mirror When you are sitting in a comfortable driving position, adjust the mirror so you can see clearly behind your vehicle. Grip the mirror in the center to move it up or down and side to side. The day/night adjustment allows you to adjust the mirror to avoid glare from the lamps behind you. Push the tab away from you for daytime use; pull it toward you for night use. 2-47