Reading Lamps; Lighting Features; Entry Lighting; Battery Load Management - GMC 2011 Terrain Owner's Manual

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(Door): The lamps come on
automatically when a door is
opened.
(On): Turns the dome lamps on.
The dome lamps can also be turned
on and off by pressing the buttons
next to the lamps.

Reading Lamps

The reading lamps are located on
the overhead console. These lamps
come on automatically when any
door is opened.
For manual operation, press the
button next to each lamp to turn it
on or off.

Lighting Features

Entry Lighting

The dome lamp, cargo lamp, and
foot lamp inside the vehicle come
on when any door is opened, if the
dome lamp is in the door position.
In addition, these lamps come on
when the Remote Keyless Entry
(RKE) unlock button is pressed.
They stay on for 20 seconds or until
a door is opened. After the door is
opened and then closed, the light
remains on for 20 seconds, or until
the ignition is turned to ON/RUN.
Battery Load
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.
Lighting
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 gauge 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
of the power 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.
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