2011 CHEVROLET SILVERADO headlamp

Black plate (54,1)Chevrolet Silverado Owner Manual - 2011
5-54 Instruments and Controls
To change customization
preferences, use the following
procedure.
Entering the Feature
Settings Menu
1. Turn the ignition on and placethe vehicle in P (Park).
To avoid excessive drain on the
battery, turn the headlamps off.
2. Press the customization button to scroll through the available
customizable options.
Feature Settings Menu Items
The following customization features
allow you to program settings to the
vehicle:
DISPLAY IN ENGLISH
This feature will only display if a
language other than English has
been set. This feature allows you to
change the language in which the
DIC messages appear to English. Press the customization button until
the PRESS
VTO DISPLAY IN
ENGLISH screen appears on the
DIC display. Press the set/reset
button once to display all DIC
messages in English.
DISPLAY LANGUAGE
This feature allows you to select
the language in which the DIC
messages will appear.
Press the customization button until
the DISPLAY LANGUAGE screen
appears on the DIC display. Press
the set/reset button once to access
the settings for this feature. Then
press the customization button to
scroll through the following settings:
ENGLISH (default): All messages
will appear in English. FRANCAIS:
All messages will
appear in French.
ESPANOL: All messages will
appear in Spanish.
NO CHANGE: No change will be
made to this feature. The current
setting will remain.
To select a setting, press the
set/reset button while the desired
setting is displayed on the DIC.
You can also change the language
by pressing the trip odometer reset
stem. See “Language” underDriver
Information Center (DIC)
on
page 5‑34for more information.

Black plate (1,1)Chevrolet Silverado Owner Manual - 2011
Lighting 6-1
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . . 6-1
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . . 6-3
Headlamp High/Low-Beam Changer . . . . . . . . . . . . . . . . . . . . . 6-3
Flash-to-Pass . . . . . . . . . . . . . . . . . 6-3
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . 6-4
Automatic Headlamp System . . . . . . . . . . . . . . . . . . . . . . 6-4
Hazard Warning Flashers . . . . . 6-5
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . 6-6
Fog Lamps . . . . . . . . . . . . . . . . . . . . 6-6
Auxiliary Roof-Mounted Lamp . . . . . . . . . 6-7
Interior Lighting
Instrument Panel IlluminationControl . . . . . . . . . . . . . . . . . . . . . . 6-7
Cargo Lamp . . . . . . . . . . . . . . . . . . 6-8
Dome Lamps . . . . . . . . . . . . . . . . . 6-8
Reading Lamps . . . . . . . . . . . . . . . 6-8
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . . 6-9
Exit Lighting . . . . . . . . . . . . . . . . . . . 6-9
Battery Load Management . . . . 6-9
Battery Power Protection . . . . 6-10
Exterior Lighting
Exterior Lamp Controls
The exterior lamps control is located
on the instrument panel to the left of
the steering wheel.

Black plate (2,1)Chevrolet Silverado Owner Manual - 2011
6-2 Lighting
It controls the following systems:
.Headlamps
.Taillamps
.Parking Lamps
.License Plate Lamps
.Instrument Panel Lights
The exterior lamps control has four
positions:
O(Off): Turns off the automatic
headlamps and daytime running
lamps (DRL). Turn the headlamp
control to the off position again to
turn the automatic headlamps or
DRL back on.
For vehicles first sold in Canada,
the off position will only work when
the vehicle is shifted into P (Park). AUTO (Automatic):
Automatically
turns on the headlamps at normal
brightness, together with the
following:
.Parking Lamps
.Instrument Panel Lights
.Taillamps
.License Plate Lamps
When the vehicle is turned off
and the headlamps are in AUTO,
the headlamps may automatically
remain on for a set time. The time of
the delay can be changed using the
DIC. See Driver Information Center
(DIC) on page 5‑34
;(Parking Lamps): Turns on
the parking lamps together with the
following:
.Instrument Panel Lights
.Taillamps
.License Plate Lamps
2(Headlamps): Turns on the
headlamps together with the
following:
.Parking Lamps
.Instrument Panel Lights
.Taillamps
.License Plate Lamps
When the headlamps are turned
on while the vehicle is on, the
headlamps turn off automatically
10 minutes after the ignition is
turned off. When the headlamps
are turned on while the vehicle is
off, the headlamps will stay on for
10 minutes before automatically
turning off to prevent the battery
from being drained. Turn the
headlamp control to off and then
back to the headlamp on position
to make the headlamps stay on
for an additional 10 minutes.

Black plate (3,1)Chevrolet Silverado Owner Manual - 2011
Lighting 6-3
Push the turn signal/multifunction
lever toward the instrument panel
to change the headlamps from low
beam to high beam.
Exterior Lamps Off
Reminder
For vehicles with a radio, a reminder
chime sounds when the headlamps
or parking lamps are manually
turned on, the ignition is off, and a
door is open. To disable the chime,
turn the lamp off.
Headlamp High/
Low-Beam Changer
5 3
(Headlamp High/Low‐Beam
Changer): Push the lever toward
the instrument panel, to change the
headlamps from low to high beam.
Pull the multifunction lever toward
you and release it, to return to
low-beam headlamps.
When the high beams are on, this
indicator light on the instrument
panel cluster will also be on.
Flash-to-Pass
This feature lets you use the
high-beam headlamps to signal
a driver in front of you that you
want to pass. It works even if the
headlamps are in the automatic
position.
To use it, pull the turn signal lever
toward you, then release it.
If the headlamps are in the
automatic position or on low
beam, the high-beam headlamps
will turn on. They will stay on as
long as you hold the lever toward
you. The high-beam indicator on the
instrument panel cluster will come
on. Release the lever to return to
normal operation.

Black plate (4,1)Chevrolet Silverado Owner Manual - 2011
6-4 Lighting
Daytime Running
Lamps (DRL)
Daytime Running Lamps (DRL) can
make it easier for others to see the
front of your vehicle during the day.
Fully functional daytime running
lamps are required on all vehicles
first sold in Canada.
The DRL system comes on when
the following conditions are met:
.The ignition is on.
.The exterior lamps control is
in AUTO.
.The transmission is not in Park.
.The light sensor determines it is
daytime.When the DRL system is on,
only the DRL lamps are on.
The taillamps, sidemarker,
instrument panel lights, and
other lamps will not be on.
When it begins to get dark, the
automatic headlamp system
switches from DRL to the
headlamps.
To turn off the DRL lamps, turn
the exterior lamps control to the
OFF position and then release.
For vehicles first sold in Canada,
the transmission must be in the
P (Park) position before the DRL
lamps can be turned off.
Automatic Headlamp
System
When it is dark enough outside, the
automatic headlamp system turns
on the headlamps at the normal
brightness, along with the taillamps,
sidemarker, parking lamps, and the
instrument panel lights. The radio
lights will also be dim.
To turn off the automatic headlamp
system, turn the exterior lamps
switch to the off position and then
release it. For vehicles first sold in
Canada, the transmission must be
in the P (Park) position before the
automatic headlamp system can
be turned off.

Black plate (5,1)Chevrolet Silverado Owner Manual - 2011
Lighting 6-5
The vehicle has a light sensor
located on the top of the instrument
panel in the defroster grille which
regulates when the automatic
headlamps turn on. Do not
cover the sensor, otherwise
the headlamps will come on
whenever the ignition is on.
The system may also turn on the
headlamps when driving through a
parking garage or heavy overcast
weather. This is normal.
There is a delay in the transition
between the daytime and nighttime
operation of the Daytime Running
Lamps (DRL) and the automatic
headlamp systems so that driving
under bridges or bright overhead
street lights does not affect the
system. The DRL and automatic
headlamp system are only affected
when the light sensor detects a
change in lighting lasting longer
than the delay.
If the vehicle is started in a dark
garage, the automatic headlamp
system comes on immediately.Once the vehicle leaves the garage,
it takes approximately one minute
for the automatic headlamp system
to change to DRL if it is bright
enough outside. During that delay,
the instrument panel cluster may
not be as bright as usual. Make sure
the instrument panel brightness
control is in the full bright position.
See
Instrument Panel Illumination
Control on page 6‑7.
To idle the vehicle with the
automatic headlamp system off,
turn the control to the off position.
The headlamps will also stay
on after you exit the vehicle.
This feature can be programmed
using the Driver Information Center
(DIC). See Vehicle Personalization
(with DIC Buttons) on page 5‑53.
If the vehicle is not equipped
with DIC buttons, exit lighting
is automatic. When it is dark
enough outside, the exterior lamps
remain on for 30 seconds after the
ignition is moved from ON/RUN to
LOCK/OFF. For vehicles without a radio, the
instrument panel light remains on
for 30 seconds with the driver door
closed. For vehicles with a radio,
the instrument panel light remains
on for 10 minutes with the driver
door closed. See
Retained
Accessory Power (RAP)
on
page 9‑35.
The regular headlamp system can
be turned on when needed.
Hazard Warning Flashers
|
(Hazard Warning Flashers):
Press this button located on top of
the steering column, to make the
front and rear turn signal lamps
flash on and off. This warns others
that you are having trouble. Press
again to turn the flashers off.
When the hazard warning flashers
are on, the vehicle's turn signals will
not work.

Black plate (6,1)Chevrolet Silverado Owner Manual - 2011
6-6 Lighting
Turn and Lane-Change
Signals
An arrow on the instrument panel
cluster flashes in the direction of the
turn or lane change.
Move the lever all the way up or
down to signal a turn.
Raise or lower the lever for less
than one second until the arrow
starts to flash to signal a lane
change. This causes the turn
signals to automatically flash
three times. It will flash six times
if Tow/Haul Mode is active.Holding the turn signal lever for
more than one second will cause
the turn signals to flash until you
release the lever.
The lever returns to its starting
position whenever it is released.
If after signaling a turn or a lane
change the arrows flash rapidly or
do not come on, a signal bulb could
be burned out.
Have the bulbs replaced. If the bulb
is not burned out, check the fuse.
See
Fuses and Circuit Breakers
on
page 10‑48.
Turn Signal On Chime
If the turn signal is left on for more
than 1.2 km (0.75 miles), a chime
sounds at each flash of the turn
signal, if the vehicle has a radio.
The message TURN SIGNAL ON
will also appear in the Driver
Information Center (DIC). To turn
the chime and message off, move
the turn signal lever to the off
position.
Fog Lamps
For vehicles with fog lamps, the
control is located next to the exterior
lamps control on the instrument
panel, to the left of the steering
column.
The ignition must be in the ON/RUN
position for the fog lamps to
come on.
#(Fog Lamps): Press to turn the
fog lamps on or off. A light will come
on in the instrument panel cluster.
When the fog lamps are turned on,
the parking lamps automatically
turn on.
When the headlamps are changed
to high beam, the fog lamps also go
off. When the high-beam headlamps
are turned off, the fog lamps will
come on again.
Some localities have laws that
require the headlamps to be on
with the fog lamps.

Black plate (9,1)Chevrolet Silverado Owner Manual - 2011
Lighting 6-9
Lighting Features
Entry Lighting
The vehicle has an illuminated entry
feature.
When the doors are opened, the
dome lamps will come on if the
dome override button is in the
extended position. If the dome
override button is pressed in,
the lamps will not come on.
Exit Lighting
The interior lamps come on when
the key is removed from the ignition.
They turn off automatically in
20 seconds. The lights do not come
on if the dome override button is
pressed in.
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.
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
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.