2012 CHEVROLET SILVERADO light

Black plate (10,1)Chevrolet Silverado Owner Manual - 2012
2-10 Keys, Doors, and Windows
Tailgate
{WARNING
It is extremely dangerous to ride
on the tailgate, even when the
vehicle is operated at low speeds.
People riding on the tailgate can
easily lose their balance and
fall in response to vehicle
maneuvers. Falling from a
moving vehicle may result in
serious injuries or death. Do not
allow people to ride on the
tailgate. Be sure everyone in your
vehicle is in a seat and using a
safety belt properly.
On vehicles with a lock on the
tailgate, use the key to lock or
unlock the tailgate. Open the tailgate by lifting up
on its handle while pulling the
tailgate down.
To shut the tailgate, firmly push it
upward until it latches.
After closing the tailgate, pull it back
to be sure it latches securely.
Tailgate Removal
The tailgate can be removed to
allow for different loading situations.
Assistance may be needed with the
removal to avoid damage to the
vehicle.
On vehicles with a Rear Vision
Camera, it must be disconnected
before removing the tailgate.
See
Rear Vision Camera (RVC) on
page 9‑70 for more information. To remove the tailgate:
1. Raise the tailgate slightly, pull
out and hold the cable retaining
clip (A). Push the cable (C) up
and off of the bolt (B). Repeat on
the other side.

Black plate (11,1)Chevrolet Silverado Owner Manual - 2012
Keys, Doors, and Windows 2-11
2. With the tailgate about halfwayopen, lift the right edge of the
tailgate from the lower pivot.
On vehicles with the tailgate
assist feature, raise the tailgate
nearly all the way to the closed
position prior to removing the
left edge.
3. Move the tailgate to the right to release the left edge.
Reverse this procedure to reinstall
the tailgate. Make sure the tailgate
is secure.Vehicle Security
This vehicle has theft-deterrent
features; however, they do not make
it impossible to steal.
Anti-theft Alarm System
This vehicle may have a content
theft-deterrent alarm system.
This is the security light.
To arm the theft-deterrent system:
1. Open the door.
2. Lock the door with the Remote Keyless Entry (RKE) transmitter.
The security light should flash. If the delayed locking feature is
active, the alarm will not be
activated until all doors are
closed and the security light
goes off.
3. Close all doors. The security light will stop flashing and go off
after approximately 30 seconds.
The system is armed when the
security light goes off.
If a locked driver door is opened
without using the RKE transmitter,
a 10 second pre-alarm will occur.
The horn will chirp and the lights will
flash. If the key is not placed in the
ignition and turned to START or the
door is not unlocked by pressing
the unlock button on the RKE
transmitter during the 10 second
pre-alarm, the alarm will go off.
The vehicle's headlamps will flash
and the horn will sound for about
30 seconds, then will turn off to save
the battery power.

Black plate (12,1)Chevrolet Silverado Owner Manual - 2012
2-12 Keys, Doors, and Windows
The theft-deterrent system will not
activate if the doors are locked with
the key or the manual door lock.
It activates only if you use the
power door lock switch or the RKE
transmitter. The vehicle can be
started with the correct key if the
alarm is set off.
To avoid setting off the alarm by
accident:
.If you do not want to activate
the theft-deterrent system,
the vehicle should be locked
with the door key after the doors
are closed.
.Always unlock a door with the
RKE transmitter.
If the alarm is set off, press unlock
on the RKE transmitter or place the
key in the ignition and turn it to
START.
Testing the Alarm
To test the alarm:
1. Lower the driver window and open the driver door.
2. Press lock on the RKE transmitter.
3. Close the door and wait for the security light to go out.
4. Reach in through the window, unlock the door with the manual
door lock, and open the door.
This should set off the alarm.
If the alarm does not sound when
it should but the headlamps flash,
check to see if the horn works.
The horn fuse may be blown.
To replace the fuse, see Fuses and
Circuit Breakers on page 10‑47.
If the alarm does not sound or the
headlamps do not flash, see your
dealer for service.
Immobilizer
See Radio Frequency Statement on
page 13‑21 for information
regarding Part 15 of the Federal
Communications Commission (FCC)
rules and Industry Canada
Standards RSS-GEN/210/220/310.
Immobilizer Operation
This vehicle has PASS-Key®III+
(Personalized Automotive Security
System) theft-deterrent system.
PASS-Key III+ is a passive
theft-deterrent system.
The system is automatically armed
when the key is removed from the
ignition.
The system is automatically
disarmed when the key is turned
to ON/RUN, ACC/ACCESSORY,
or START from the LOCK/OFF
position.

Black plate (13,1)Chevrolet Silverado Owner Manual - 2012
Keys, Doors, and Windows 2-13
You do not have to manually arm or
disarm the system.
The security light will come on if
there is a problem with arming or
disarming the theft-deterrent
system.
When the PASS-Key III+ system
senses that someone is using the
wrong key, it prevents the vehicle
from starting. Anyone using a
trial-and-error method to start the
vehicle will be discouraged because
of the high number of electrical
key codes.
If the engine does not start and the
security light on the instrument
panel cluster comes on when trying
to start the vehicle, there may be a
problem with the theft-deterrent
system. Turn the ignition off and
try again.If the engine still does not start, and
the key appears to be undamaged,
try another ignition key. At this time,
you may also want to check the
fuse. See
Fuses and Circuit
Breakers on page 10‑47. If the
engine still does not start with the
other key, the vehicle needs service.
If the vehicle does start, the first key
may be faulty. See your dealer who
can service the PASS-Key III+ to
have a new key made.
It is possible for the PASS-Key III+
decoder to learn the transponder
value of a new or replacement key.
Up to 10 keys may be programmed
for the vehicle. The following
procedure is for programming
additional keys only. If all the
currently programmed keys are lost
or do not operate, you must see your dealer or a locksmith who can
service PASS-Key III+ to have keys
made and programmed to the
system.
See your dealer or a locksmith who
can service PASS-Key III+ to get a
new key blank cut exactly as the
ignition key that operates the
system.
To program the new additional key:
1. Verify that the new key has
a
1stamped on it.
2. Insert the original, already programmed key in the ignition
and start the engine. If the
engine will not start, see your
dealer for service.
3. After the engine has started, turn the key to LOCK/OFF, and
remove the key.

Black plate (14,1)Chevrolet Silverado Owner Manual - 2012
2-14 Keys, Doors, and Windows
4. Insert the new key to beprogrammed and turn it to
the ON/RUN position within
five seconds of turning the
ignition to the LOCK/OFF
position in Step 3.
The security light will turn off
once the key has been
programmed.
5. Repeat Steps 1 through 4 if additional keys are to be
programmed.
If you lose or damage your
PASS-Key III+ key, see your dealer
or a locksmith who can service
PASS-Key III+ to have a new
key made.
Do not leave the key or device
that disarms or deactivates the
theft-deterrent system in the vehicle.Exterior Mirrors
Convex Mirrors
{WARNING
A convex mirror can make things,
like other vehicles, look farther
away than they really are. If you
cut too sharply into the right lane,
you could hit a vehicle on the
right. Check the inside mirror or
glance over your shoulder before
changing lanes.
The passenger side mirror is convex
shaped. A convex mirror's surface is
curved so more can be seen from
the driver seat.
Manual Mirrors
Vehicles with outside manual
mirrors can be adjusted by moving
the mirror up and down or left to
right to see a little of the side of the
vehicle, and have a clear view
behind the vehicle.
Using hood-mounted air deflectors
and add-on convex mirror
attachments could decrease mirror
performance.

Black plate (17,1)Chevrolet Silverado Owner Manual - 2012
Keys, Doors, and Windows 2-17
Park Tilt Mirrors
If the vehicle has the memory
package, the passenger and/or
driver mirror tilts to a preselected
position when the vehicle is in
R (Reverse). This feature lets the
driver view the curb when parallel
parking. The mirror(s) return to the
original position when the vehicle is
shifted out of R (Reverse), or the
ignition is turned off or to
OFF/LOCK.
Turn this feature on or off through
the Driver Information Center (DIC).
SeeVehicle Personalization
(With DIC Buttons) on page 5‑52
for more information.
Interior Mirrors
Manual Rearview Mirror
Hold the mirror in the center to
move it for a clearer view of behind
your vehicle. Adjust the mirror to
avoid glare from the headlamps
behind you. Push the tab at the
bottom of the mirror forward for
daytime use and pull it for
nighttime use.
Automatic Dimming
Rearview Mirror
The vehicle may have an automatic
dimming inside rearview mirror.
Automatic dimming reduces the
glare from the headlamps of the
vehicle behind you. The dimming
feature comes on and the indicator
light illuminates each time the
ignition is turned to start.
O(On/Off): Press to turn the
dimming feature on or off.
The vehicle may also have a Rear
Vision Camera (RVC). See Rear
Vision Camera (RVC) on page 9‑70
for more information.
If the vehicle has a RVC, the
O
button for turning the dimming
feature on or off will not be
available.
Vehicles with OnStar have three
additional control buttons for the
OnStar system. See your dealer for
more information about OnStar and
how to subscribe to it. See OnStar
Overview on page 14‑1.
Cleaning the Mirror
Do not spray glass cleaner directly
on the mirror. Use a soft towel
dampened with water.

Black plate (19,1)Chevrolet Silverado Owner Manual - 2012
Keys, Doors, and Windows 2-19
Crew Cab Shown
If the vehicle has power windows,
switches are located on each door.
The driver door has a switch for the
passenger and rear windows as
well. The power windows will work
when the ignition is in ON/RUN or
ACC/ACCESSORY, or when Retained Accessory Power (RAP) is
active. See
Retained Accessory
Power (RAP) on page 9‑32.
Push the switch down to lower the
window, and pull up the front of the
switch to raise the window.
Express-down Windows
Vehicles with the express-down
feature allow the driver and front
passenger windows to be lowered
without holding the switch. Push the
switch down to the second detent,
then release, to activate the
express-down mode. The
express-down mode can be
canceled at any time by pulling up
on the front of the switch. To open
the window partway, push the switch
down to the first detent until the
window is at the desired position.
Window Lockout
o(Window Lockout): If a crew
cab or extended cab vehicle has
power windows, the driver door
power window switch has a lockout
feature. This feature prevents the
rear windows from operating, except
from the driver position. Press the
switch to engage or disengage the
lockout feature. An indicator light on
the switch will come on when the
lockout feature is engaged, and will
go off when disengaged.

Black plate (10,1)Chevrolet Silverado Owner Manual - 2012
3-10 Seats and Restraints
Heated and Ventilated
Front Seats
{WARNING
If you cannot feel temperature
change or pain to the skin, the
seat heater may cause burns
even at low temperatures.
To reduce the risk of burns,
people with such a condition
should use care when using the
seat heater, especially for long
periods of time. Do not place
anything on the seat that
insulates against heat, such as
a blanket, cushion, cover,
or similar item. This may cause
the seat heater to overheat.
An overheated seat heater may
cause a burn or may damage
the seat.
Heated and Cooled Seat
Buttons Shown, Heated Seat Buttons Similar
If available, the buttons are on the
front doors.
H(Cooled Seat): If available,
press to cool the seat.
I(Heated Seatback): Press to
heat the seatback only.
J(Heated Seat and Seatback):
Press to heat the seat and
seatback. Press the button once for the
highest setting. With each press of
the button, the seat will change to
the next lower setting, and then to
the off setting. The lights indicate
three for the highest setting and one
for the lowest.
The passenger seat may take
longer to heat up.
On vehicles with heated seats,
the heated seats are canceled
10 seconds after the ignition is
turned off.
On vehicles with heated and cooled
seats, the heated and cooled seats
are canceled when the ignition is
turned off.
To use this feature after restarting
the vehicle, press the desired button
again.