2014 GMC SIERRA heater

Black plate (4,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 6/6/14
1-4 In Brief
20.Climate Control Systems (with
Heater Only) on page 8-1 or
Climate Control Systems (with
Air Conditioning) on page 8-3
(If Equipped).
Dual Automatic Climate Control
System on page 8-5
(If Equipped).
21. Traction Control/Electronic
Stability Control on page 9-54.
Pedal Adjust Switch
(If Equipped). See Adjustable
Throttle and Brake Pedal on
page 9-24.
Cargo Lamp on page 6-7.
Parking Assist Button
(If Equipped). See Assistance
Systems for Parking or Backing
on page 9-61.
Lane Departure Warning
(LDW) on page 9-66
(If Equipped). Hill Descent Control Switch
(If Equipped). See
Hill Descent
Control (HDC) on page 9-56.
Exhaust Brake (If Equipped).
See “Exhaust Brake” in the
Duramax diesel supplement.
Power Take Off (PTO) Button
(If Equipped). See the
Duramax diesel supplement.
Auxiliary Button (If Equipped).
See Add-On Electrical
Equipment on page 9-99.
22. USB Port on page 7-19.
23. Power Outlets on page 5-6.
24. Power Outlet 110V Alternating Current (If Equipped). See
Power Outlets on page 5-6.
25. Passenger Airbag On-Off Switch (If Equipped) (Out of
View). See Airbag On-Off
Switch on page 3-28.Initial Drive
Information
This section provides a brief
overview about some of the
important features that may or may
not be on your specific vehicle.
For more detailed information, refer
to each of the features which can be
found later in this owner manual.
Remote Keyless Entry
(RKE) System
The RKE transmitter functions may
work from up to 60 m (197 ft) away
from the vehicle.

Black plate (17,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 6/6/14
In Brief 1-17
Climate Controls
These systems control the heating, cooling, and ventilation.
Climate Control System (with Heater Only)
1. Fan Control
2. Air Recirculation
3. Air Delivery Mode Control4. Defrost
5. TEMP (Temperature Control)

Black plate (19,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 6/6/14
In Brief 1-19
Dual Automatic Climate Control System
1. Driver Temperature Control
2. A/C (Air Conditioning)
3. Air Delivery Mode Controls
4. Fan Control
5. Defrost
6. Passenger Temperature Control
7. AUTO (Automatic Operation)
8. Air Recirculation9. Power Button
10. Rear Window Defogger
11. SYNC (Synchronized
Temperature)
See Climate Control Systems (with
Heater Only) on page 8-1 orClimate
Control Systems (with Air
Conditioning) on page 8-3 orDual
Automatic Climate Control System
on page 8-5 (If Equipped).
Transmission
Range Selection Mode
The Range Selection Mode switch,
if equipped, is on the shift lever.
To enable:
1. Move the shift lever to the
M (Manual Mode) position. The
current range will display next to
the M. This is the highest
attainable range with all lower
gears accessible. As an
example, when 5 (Fifth) gear is
selected, 1 (First) through
5 (Fifth) gears are available.
2. Press the plus/minus buttons on the shift lever to select the
desired range of gears for
current driving conditions. See
Manual Mode on page 9-37.

Black plate (16,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 6/6/14
2-16 Keys, Doors, and Windows
Resetting the Power Folding
Mirrors
Reset the power folding mirrors if:
.The mirrors are accidentally
obstructed while folding.
.They are accidentally manually
folded/unfolded.
.The mirrors will not stay in the
unfolded position.
.The mirrors vibrate at normal
driving speeds.
Fold and unfold the mirrors three
times using the mirror controls to
reset them to their normal position.
A popping noise may be heard. This
sound is normal after a manual
folding operation.
Manual Folding
If equipped, push the mirror toward
the vehicle to fold. Push the mirror
outward to return to its original
position. Manually fold the mirrors inward to
prevent damage when going
through an automatic car wash.
Auto Folding Mirrors
If equipped, with the ignition off,
press and hold
Qon the RKE
transmitter for approximately
one second to fold the mirrors.
Press and hold
Kon the RKE
transmitter to unfold the mirrors.
See Remote Keyless Entry (RKE)
System Operation on page 2-3.
This feature is turned on and off
through Vehicle Personalization.
See Vehicle Personalization on
page 5-45.
Turn Signal Indicator
If equipped, indicator lights on the
mirror flash in the direction of the
turn or lane change.
Heated Mirrors
1
(Rear Window Defogger):
If equipped, the rear window
defogger also heats the side
mirrors.
W(Heated Side Mirrors):
If equipped, press to turn the heated
mirrors on or off.
If the vehicle has trailer-tow mirrors,
only the upper glass of the mirror is
heated. The lower convex part of
the towing mirrors is not heated.
See “Rear Window Defogger” under
Climate Control Systems (with
Heater Only) on page 8-1 orClimate
Control Systems (with Air
Conditioning) on page 8-3 orDual
Automatic Climate Control System
on page 8-5.

Black plate (8,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 6/6/14
3-8 Seats and Restraints
To stop recall movement, press one
of the memory, power mirror or
power seat controls; or press the
adjustable pedal control
(if equipped).
If something has blocked the driver
seat and/or the adjustable pedals
(if equipped) while recalling a
memory position, the recall may
stop. Remove the obstruction; then
press and hold the appropriate
manual control for the memory item
that is not recalling for two seconds.
Try recalling the memory position
again by opening the driver door
and pressing
Kon the RKE
transmitter. If the memory position is
still not recalling, see your dealer for
service.
Easy Exit Recall
If programmed on in the vehicle
personalization menu, the easy exit
feature automatically moves the
driver seat, adjustable pedals
(if equipped), and outside mirrors on
some vehicles to the memory
positions saved to the
B(Exit) button. See
“Storing Memory
Positions” listed previously. See
also Vehicle Personalization on
page 5-45.
Easy exit recall automatically
activates when one of the following
occurs:
.The vehicle is turned off and the
driver door is opened within a
short time.
.The vehicle is turned off with the
driver door open.
If something has blocked the driver
seat and/or adjustable pedals
(if equipped) while recalling the exit
position, the recall may stop.
Remove the obstruction; then press
and hold the appropriate manual
control for the exit feature not
recalling for two seconds. Try
recalling the exit position again.
If the exit position is still not
recalling, see your dealer for
service.
Heated and Cooled Front
Seats
{Warning
If you cannot feel temperature
change or pain to the skin, the
seat heater may cause burns. 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.

Black plate (33,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 6/6/14
Seats and Restraints 3-33
For some children, including
children in child restraints, and for
very small adults, the passenger
sensing system may or may not turn
off the front outboard passenger
frontal airbag, depending upon the
person's seating posture and body
build. Everyone in the vehicle who
has outgrown child restraints should
wear a safety belt
properly—whether or not there is
an airbag for that person.
{Warning
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
with the airbag system. To help
avoid injury to yourself or others,
have the vehicle serviced right
away. See Airbag Readiness
Light on page 5-18 for more
information, including important
safety information.
If the On Indicator Is Lit for a
Child Restraint
The passenger sensing system is
designed to turn off the front
outboard passenger frontal airbag if
the system determines that an infant
is present in a child restraint. If a
child restraint has been installed
and the on indicator is lit:
1. Turn the vehicle off.
2. Remove the child restraint from the vehicle.
3. Remove any additional items from the seat such as blankets,
cushions, seat covers, seat
heaters, or seat massagers. 4. Reinstall the child restraint
following the directions provided
by the child restraint
manufacturer and refer to
Securing Child Restraints
(Center Front Seat) on
page 3-58 orSecuring Child
Restraints (Front Outboard
Passenger Seat) on page 3-58
or Securing Child Restraints
(Rear Seat) on page 3-68. Even
if the child restraint is equipped
with a safety belt lock-off, make
sure the safety belt retractor is
locked by pulling the shoulder
belt all the way out of the
retractor before tightening the
safety belt. When the retractor
lock is set, the belt can be
tightened but not pulled out of
the retractor.

Black plate (34,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 6/6/14
3-34 Seats and Restraints
5. If, after reinstalling the childrestraint and restarting the
vehicle, the on indicator is still lit,
turn the vehicle off. Then slightly
recline the vehicle seatback and
adjust the seat cushion,
if adjustable, to make sure that
the vehicle seatback is not
pushing the child restraint into
the seat cushion.
Also make sure the child
restraint is not trapped under the
vehicle head restraint. If this
happens, adjust the head
restraint. See Head Restraints
on page 3-2.
6. Restart the vehicle.
The passenger sensing system may
or may not turn off the airbag for a
child in a child restraint depending
upon the child’s size. It is better to
secure the child restraint in a
rear seat.If the Off Indicator Is Lit for an
Adult-Sized Occupant
If a person of adult size is sitting in
the front outboard passenger seat,
but the off indicator is lit, it could be
because that person is not sitting
properly in the seat or that the child
restraint locking feature is engaged.
If this happens, use the following
steps to allow the system to detect
that person and enable the front
outboard passenger frontal airbag:
1. Turn the vehicle off. 2. Remove any additional material
from the seat, such as blankets,
cushions, seat covers, seat
heaters, or seat massagers.
3. Place the seatback in the fully upright position.
4. Have the person sit upright in the seat, centered on the seat
cushion, with legs comfortably
extended.
5. If the shoulder portion of the belt is pulled out all the way, the
child restraint locking feature will
be engaged. This may
unintentionally cause the
passenger sensing system to
turn the airbag off for some
adult-sized occupants. If this
happens, unbuckle the belt, let
the belt go back all the way, and
then buckle the belt again
without pulling the belt out all
the way.
6. Restart the vehicle and have the person remain in this position for
two to three minutes after the on
indicator is lit.

Black plate (35,1)GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
5853626) - 2014 - 3rd crc - 6/6/14
Seats and Restraints 3-35
{Warning
If the front outboard passenger
airbag is turned off for an
adult-sized occupant, the airbag
will not be able to inflate and help
protect that person in a crash,
resulting in an increased risk of
serious injury or even death. An
adult-sized occupant should not
ride in the front outboard
passenger seat, if the passenger
airbag off indicator is lit.
Additional Factors Affecting
System Operation
Safety belts help keep the
passenger in position on the seat
during vehicle maneuvers and
braking, which helps the passenger
sensing system maintain the
passenger airbag status. See
“Safety Belts”and“Child Restraints”
in the Index for additional
information about the importance of
proper restraint use. A thick layer of additional material,
such as a blanket or cushion,
or aftermarket equipment such as
seat covers, seat heaters, and seat
massagers can affect how well the
passenger sensing system
operates. We recommend that you
not use seat covers or other
aftermarket equipment except when
approved by GM for your specific
vehicle. See
Adding Equipment to
the Airbag-Equipped Vehicle on
page 3-36 for more information
about modifications that can affect
how the system operates.
The on indicator may be lit if an
object, such as a briefcase,
handbag, grocery bag, laptop,
or other electronic device, is put on
an unoccupied seat. If this is not
desired, remove the object from
the seat.
{Warning
Stowing of articles under the
passenger seat or between the
passenger seat cushion and
seatback may interfere with the
proper operation of the passenger
sensing system.
Servicing the
Airbag-Equipped Vehicle
Airbags affect how the vehicle
should be serviced. There are parts
of the airbag system in several
places around the vehicle. Your
dealer and the service manual have
information about servicing the
vehicle and the airbag system. To
purchase a service manual, see
Service Publications Ordering
Information on page 13-11.