alternator PONTIAC G5 2009 Owners Manual

Dome Lamp
The vehicle may have a dome lamp.
Move the lever to the following positions:
9(Off):Turns the lamp off, even when a door is
opened.
1(Door):Turns the lamp on whenever a door is
opened.
+(On):Turns the dome lamp on.
Entry/Exit Lighting
The lamps inside the vehicle will go on when any door
is opened. These lamps fade out about 20 seconds after
all of the doors have been closed or when the ignition is
turned to ON/RUN. These lamps will also go on when
pressing the trunk release, unlock symbol, or the horn
symbol button on the Remote Keyless Entry System
(RKE) Transmitter.
After the key is removed from the ignition, the lamps
inside the vehicle stay on for about 20 seconds to
provide an illuminated exit.
Mirror Reading Lamps
The vehicle may have reading lamps on the rearview
mirror. Press the button to turn the reading lamps on
and off.
Electric Power Management
This vehicle has Electric Power Management (EPM),
an advanced control system. It estimates the battery’s
temperature and state of charge and then adjusts
the voltage for best performance and extended life
of the battery.
When the battery’s state of charge is low, the voltage is
raised slightly to quickly put the charge back in. When the
state of charge is high, the voltage is lowered slightly to
prevent overcharging. If the vehicle has a voltmeter gage
or voltage display on the Driver Information Center (DIC),
you may see the voltage move up or down. This is
normal. If there is a problem, an alert will be displayed.
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.
3-15