The battery can be discharged at idle if the electricalloads are very high. This is true for all vehicles. This isbecause the generator (alternator) may not be spinningfast enough at idle to produce all the power that isneeded for very high electrical loads.A high electrical load occurs when several of thefollowing are on, such as: headlamps, high beams, foglamps, rear window defogger, climate control fan at highspeed, heated seats, engine cooling fans, trailer loads,and loads plugged into accessory power outlets.EPM works to prevent excessive discharge of thebattery. It does this by balancing the generator's outputand the vehicle's electrical needs. It can increaseengine idle speed to generate more power, wheneverneeded. It can temporarily reduce the power demandsof some accessories.Normally, these actions occur in steps or levels,without being noticeable. In rare cases at the highestlevels of corrective action, this action may be noticeableto the driver. If so, a Driver Information Center (DIC)message might be displayed, such as BATTERYSAVER ACTIVE, BATTERY VOLTAGE LOW, orLOW BATTERY. If this message is displayed, it isrecommended that the driver reduce the electricalloads as much as possible. See DIC Warnings andMessages on page 4‑66.Inadvertent Power Battery SaverThis feature is designed to protect your vehicle's batteryagainst drainage from the interior lamps, trunk lamp,glove box lamp, or the garage door opener. When theignition is turned off, the power to these features willautomatically turn off after 10 minutes. Power will berestored for an additional 10 minutes if any door or trunkis opened, or the courtesy lamp switch is turned on.Battery Run-Down ProtectionThis feature helps prevent the battery from beingdrained, if the interior courtesy lamps, reading/maplamps, visor vanity lamps or trunk lamp are accidentallyleft on. If any of these lamps are left on, theyautomatically turn off after 10 minutes, if the ignition isoff. The lamps will not come back on again until one ofthe following occurs:. The ignition is turned on.. The exterior lamps control is turned off, then onagain.The headlamps will timeout after 10 minutes, if they aremanually turned on with the ignition on or off.4-33InformationProvidedby:
