Battery Run-Down Protection; Accessory Power Outlet(S) - Pontiac 2007 G5 Owner's Manual

The battery can be discharged at idle if the
electrical loads are very high. This is true for all
vehicles. This is because the generator (alternator)
may not be spinning fast enough at idle to
produce all the power that is needed for very high
electrical loads.
A high electrical load occurs when several of the
following loads are on: headlamps, high beams,
fog lamps, rear window defogger, climate
control fan at high speed, heated seats, engine
cooling fans, trailer loads, and loads plugged into
accessory power outlets.
EPM works to prevent excessive discharge of the
battery. It does this by balancing the generator's
output and the vehicle's electrical needs. It can
increase engine idle speed to generate more
power, whenever needed. It can temporarily reduce
the power demands of some accessories.
Normally, these actions occur in steps or levels,
without being noticeable. In rare cases at the
highest levels of corrective action, this action may
be noticeable to the driver.
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Battery Run-Down Protection

Your vehicle has a battery saver feature designed
to protect your vehicle's battery.
When any interior lamp is left on and the ignition is
turned off, the battery rundown protection system
will automatically turn the lamp off after 20 minutes.
This will avoid draining the battery.

Accessory Power Outlet(s)

Accessory power outlets can be used to connect
electrical equipment such as a cellular phone
or CB radio.
The accessory power outlet is located in the
center console, rearward of the shift lever.
To use the outlet, remove the cover. When not in
use, always cover the outlet with the protective cap.
Notice: Leaving electrical equipment on for
extended periods will drain the battery. Always
turn off electrical equipment when not in use
and do not plug in equipment that exceeds the
maximum amperage rating.