alternator CHEVROLET COLORADO 2008 1.G Owners Manual

Instrument Panel Brightness
D(Instrument Panel Lights):Turn the thumbwheel
up or down to brighten or dim the instrument panel
lights and the radio display. The instrument panel lights,
cluster, and radio display do not dim to complete
darkness. The instrument panel light brightness control
will only work if the headlamps or parking lamps are
on. SeeExterior Lamps on page 3-13.
Dome Lamp
The dome lamps, located in the front and cargo area of
the vehicle, come on when any door is opened.
Turn the dome lamps on by turning the thumbwheel,
located next to the exterior lamps control, all the way up.
In this position, the lamps remain on whether a door
is opened or closed.
Dome Lamp Override
E(Dome Lamp Override):This button, located
below the exterior lamps control, can set the dome
lamps to either come on automatically when a door is
opened, or to remain off. Press the button in to make the
dome lamps remain off when the doors are open. To
return the lamps to automatic operation, press the button
again and return it to the out position.
Exit Lighting
With exit lighting, the interior lamps will come on when
you remove the key from the ignition. The lamps will not
come on if the dome override button is pressed in.
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 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, 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 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.
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