Saturn 2009 VUE Automobile User Manual


 
Reading Lamps
The reading lamps are located on
the overhead console.
To turn the reading lamps on or off,
press the button located next to
each lamp.
Electric Power
Management
The vehicle has Electric Power
Management (EPM) that estimates
the battery’s temperature and state
of charge. It 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 bring the charge back up.
When the state of charge is high,
the voltage is lowered slightly to
prevent overcharging. If the vehicle
has a voltmeter gage or a 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.
A high electrical load occurs when
several of the following are on,
such as: 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. If so, a Driver Information
Center (DIC) message might be
displayed, such as BATTERY
SAVER ACTIVE, BATTERY
VOLTAGE LOW, or LOW BATTERY.
If this message is displayed, it is
recommended that the driver reduce
the electrical loads as much as
possible. See DIC Warnings and
Messages on page 3-49.
Instrument Panel 3-15