Chevrolet Impala Owner Manual (GMNA-Localizing-U.S/Canada-9086448) -
2016 - CRC - 5/20/15
Lighting 153
Lighting Features
Entry Lighting
Some exterior lamps and most of
the interior lights turn on briefly
when the Remote Keyless Entry
(RKE) transmitter
Kbutton is
pressed. After about 30 seconds the
exterior lamps turn off, then the
dome lamps and remaining interior
lights dim to off. Entry lighting can
be disabled manually by changing
the ignition out of the OFF position,
or by pressing the RKE transmitter
Qbutton.
This feature can be changed. See
Vehicle Personalization 0138.
Exit Lighting
Some exterior lamps come on at
night, or in areas with limited
lighting, when the key is removed
from the ignition. The dome lamps
also come on when the key is
removed from the ignition. The
exterior lamps and dome lamps remain on after the door is closed
for a set amount of time, then
automatically turn off.
For vehicles with Keyless Access,
the exterior lamps automatically turn
on when a door is opened after the
ignition is changed to the OFF
position. The dome lamps also
come on after the ignition is
changed to the OFF position. See
Ignition Positions (Keyless Access)
0
201 orIgnition Positions (Key
Access) 0203.
The exterior lamps turn off
immediately by turning the exterior
lamps control off.
This feature can be changed. See
Vehicle Personalization 0138.
Battery Load
Management
The vehicle has Electric Power
Management (EPM), which
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 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.
