2013 GMC SIERRA warning

Black plate (1,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
Keys, Doors, and Windows 2-1
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . 2-2
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . 2-2
Remote Vehicle Start . . . . . . . . . 2-4
Door Locks . . . . . . . . . . . . . . . . . . . 2-6
Power Door Locks . . . . . . . . . . . . 2-7
Delayed Locking . . . . . . . . . . . . . . 2-7
Automatic Door Locks . . . . . . . . . 2-7
Lockout Protection . . . . . . . . . . . . 2-8
Safety Locks . . . . . . . . . . . . . . . . . . 2-8
Doors
Rear Doors (Extended Cab) . . . . . . . . . . . . . . 2-8
Tailgate . . . . . . . . . . . . . . . . . . . . . . . 2-9
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . 2-10
Vehicle Alarm System . . . . . . . 2-10
Immobilizer . . . . . . . . . . . . . . . . . . 2-11
Immobilizer Operation . . . . . . . . 2-11
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . 2-13
Manual Mirrors . . . . . . . . . . . . . . . 2-13
Trailer-Tow Mirrors . . . . . . . . . . . 2-13
Power Mirrors . . . . . . . . . . . . . . . . 2-14
Folding Mirrors . . . . . . . . . . . . . . . 2-15
Heated Mirrors . . . . . . . . . . . . . . . 2-16
Park Tilt Mirrors . . . . . . . . . . . . . . 2-16
Interior Mirrors
Manual Rearview Mirror . . . . . . 2-16
Automatic Dimming Rearview Mirror . . . . . . . . . . . . . . . . . . . . . . . 2-17
Windows
Windows . . . . . . . . . . . . . . . . . . . . . 2-17
Manual Windows . . . . . . . . . . . . 2-18
Power Windows . . . . . . . . . . . . . 2-18
Rear Windows . . . . . . . . . . . . . . . 2-19
Sun Visors . . . . . . . . . . . . . . . . . . . 2-19
Roof
Sunroof (Extended Cab) . . . . . 2-20
Sunroof (Crew Cab) . . . . . . . . . 2-21
Keys and Locks
Keys
{WARNING
Leaving children in a vehicle with
the ignition key is dangerous and
children or others could be
seriously injured or killed. They
could operate the power windows
or other controls or make the
vehicle move. The windows will
function with the keys in the
ignition, and children or others
could be caught in the path of a
closing window. Do not leave
children in a vehicle with the
ignition key.

Black plate (5,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
Keys, Doors, and Windows 2-5
During a remote start, if the vehicle
has an automatic climate control
system and heated seats, the
heated seats will turn on during
colder outside temperatures and will
shut off when the key is turned to
ON/RUN. If the vehicle does not
have an automatic climate control
system, during remote start,
manually turn the heated seats on
and off. SeeHeated and Ventilated
Front Seats on page 3‑8 for
additional information.
Laws in some communities may
restrict the use of remote starters.
For example, some laws may
require a person using the remote
start to have the vehicle in view
when doing so. Check local
regulations for any requirements on
remote starting of vehicles.
Do not use the remote start feature
if the vehicle is low on fuel. The
vehicle may run out of fuel.
The RKE transmitter range may be
less while the vehicle is running. There are other conditions which
can affect the performance of the
transmitter. See
Remote Keyless
Entry (RKE) System on page 2‑2 for
additional information.
/(Remote Start): This button will
be on the RKE transmitter if the
vehicle has remote start.
To start the vehicle using the remote
start feature:
1. Aim the RKE transmitter at the vehicle.
2. Press and release
Q.
3. Immediately press and hold
/
until the turn signal lamps flash.
If you cannot see the vehicle's
lamps, press and hold
/for at
least two seconds.
When the vehicle starts, the
parking lamps will turn on and
remain on while the vehicle is
running. The doors will be
locked and the climate control
system may come on. The engine will continue to run
for 10 minutes. Repeat the steps
for a 10-minute time extension.
Remote start can be extended
only once.
After entering the vehicle during a
remote start, insert and turn the key
to ON/RUN to drive the vehicle.
To cancel a remote start:
.Aim the RKE transmitter at the
vehicle and press and hold
/
until the parking lamps turn off.
.Turn on the hazard warning
flashers.
.Turn the ignition on and then
back off.
The vehicle can be remote started
two separate times between driving
sequences. The engine will run for
10 minutes after each remote start.
Or, you can extend the engine run
time by another 10 minutes within
the first 10 minute remote start time
frame, and before the engine stops.

Black plate (6,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
2-6 Keys, Doors, and Windows
For example, ifQand then/are
pressed again after the vehicle has
been running for five minutes,
10 minutes are added, allowing the
engine to run for 15 minutes.
The additional 10 minutes are
considered a second remote vehicle
start.
Once two remote starts, or a single
remote start with one time extension
has been done, the vehicle must be
started with the key. After the key is
removed from the ignition, the
vehicle can be remote started again.
The vehicle cannot be remote
started if the key is in the ignition,
the hood is not closed, or if there is
an emission control system
malfunction and the check engine
light is on.
Also, the engine will turn off during a
remote vehicle start if the coolant
temperature gets too high or if the
oil pressure gets low.Remote Start Ready
If the vehicle does not have the
remote vehicle start feature, it may
have the remote start ready feature.
This feature allows your dealer to
add the manufacturer's remote
vehicle start feature.
See your dealer to add the
manufacturer's remote vehicle start
feature to the vehicle.
Door Locks
{WARNING
Unlocked doors can be
dangerous.
.Passengers, especially
children, can easily open the
doors and fall out of a moving
vehicle. When a door is
locked, the handle will not
open it. The chance of being
thrown out of the vehicle in a
crash is increased if the
(Continued)
WARNING (Continued)
doors are not locked. So, all
passengers should wear
safety belts properly and the
doors should be locked
whenever the vehicle is
driven.
.Young children who get into
unlocked vehicles may be
unable to get out. A child can
be overcome by extreme heat
and can suffer permanent
injuries or even death from
heat stroke. Always lock the
vehicle whenever leaving it.
.Outsiders can easily enter
through an unlocked door
when you slow down or stop
the vehicle. Locking the doors
can help prevent this from
happening.
There are several ways to lock and
unlock the vehicle.

Black plate (9,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
Keys, Doors, and Windows 2-9
To open a rear access door from the
inside, first open the front door.
Then, use the handle located on the
inside of the rear access door
to open.
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(Continued)
WARNING (Continued)
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 9‑60.
To remove the tailgate:

Black plate (13,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
Keys, Doors, and Windows 2-13
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
If the vehicle has manual mirrors,
they 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.
Trailer-Tow Mirrors
If the vehicle has towing mirrors,
they can be adjusted for a clearer
view of the objects behind you.
Manually pull out the mirror head to
extend it for better visibility when
towing a trailer.
The lower portion of the mirror is
convex. A convex mirror's surface is
curved to see more from the driver
seat. The convex mirror can be
adjusted manually to the driver
preferred position for better vision.
The mirror may have a turn signal
arrow that flashes in the direction of
the turn or lane change.

Black plate (17,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
Keys, Doors, and Windows 2-17
Automatic Dimming
Rearview Mirror
Adjustment
Hold the rearview mirror in the
center and move it to view the area
behind the vehicle.
Operation
For vehicles with an automatic
dimming rearview mirror, the mirror
will automatically reduce the glare of
the headlamps from behind. The
dimming feature comes on each
time the vehicle is started.
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 9‑60
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 located at
the bottom of the mirror. See a
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.
Windows
{WARNING
Never leave a child, a helpless
adult, or a pet alone in a vehicle,
especially with the windows
closed in warm or hot weather.
They can be overcome by the
extreme heat and suffer
permanent injuries or even death
from heat stroke.

Black plate (18,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
2-18 Keys, Doors, and Windows
The vehicle aerodynamics are
designed to improve fuel economy
performance. This may result in a
pulsing sound when either rear
window is down and the front
windows are up. To reduce the
sound, open either a front window
or the sunroof, if equipped.
Manual Windows
Turn the hand crank on each door
to manually raise or lower the
manual windows.
Power Windows
{WARNING
Children could be seriously
injured or killed if caught in the
path of a closing window. Never
leave keys in a vehicle with
children. When there are children
in the rear seat, use the window
lockout button to prevent
operation of the windows. See
Keys on page 2‑1.
Crew Cab Premium Trim Shown,Other Models Similar
The driver door has a switch to
control all windows. Each
passenger door has a switch to
control that window. The power
windows only 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 9‑27.
Push the switch down to lower the
window, and pull up the front of the
switch to raise the window.
Express-down Windows
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.

Black plate (2,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
3-2 Seats and Restraints
Head Restraints
Front Seats
The front seats have adjustable
head restraints in the outboard
seating positions.
{WARNING
With head restraints that are not
installed and adjusted properly,
there is a greater chance that
occupants will suffer a neck/
spinal injury in a crash. Do not
drive until the head restraints for
all occupants are installed and
adjusted properly.
Adjust the head restraint so that the
top of the restraint is at the same
height as the top of the occupant's
head. This position reduces the
chance of a neck injury in a crash.The height of the head restraint can
be adjusted. Pull the head restraint
up to raise it. Try to move the head
restraint to make sure that it is
locked in place.
To lower the head restraint, press
the button, located on the top of the
seatback, and push the restraint
down. Try to move the head
restraint after the button is released
to make sure that it is locked in
place.
The front seat outboard head
restraints are not designed to be
removed.