2018 GMC SIERRA Heated and ventilated seats

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
In Brief 5
In Brief
Instrument Panel
Instrument Panel . . . . . . . . . . . . . . . . 6
Initial Drive Information
Initial Drive Information . . . . . . . . . . 8
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Vehicle Start . . . . . . . . . . . 9
Door Locks . . . . . . . . . . . . . . . . . . . . . 9
Windows . . . . . . . . . . . . . . . . . . . . . . . 10
Seat Adjustment . . . . . . . . . . . . . . . 11
Memory Features . . . . . . . . . . . . . . 13
Heated and Ventilated Seats . . . 13
Head Restraint Adjustment . . . . 14
Seat Belts . . . . . . . . . . . . . . . . . . . . . 14
Passenger Sensing System . . . 14
Mirror Adjustment . . . . . . . . . . . . . . 15
Steering Wheel Adjustment . . . . 16
Throttle and Brake Pedal Adjustment . . . . . . . . . . . . . . . . . . . 17
Interior Lighting . . . . . . . . . . . . . . . . 17
Exterior Lighting . . . . . . . . . . . . . . . 18
Windshield Wiper/Washer . . . . . . 19
Climate Controls . . . . . . . . . . . . . . . 20
Transmission . . . . . . . . . . . . . . . . . . 22
Four-Wheel Drive . . . . . . . . . . . . . . 23
Vehicle Features
Infotainment System . . . . . . . . . . . 24
Radio(s) . . . . . . . . . . . . . . . . . . . . . . . 24
Satellite Radio . . . . . . . . . . . . . . . . . 25
Portable Audio Devices . . . . . . . . 25
Bluetooth . . . . . . . . . . . . . . . . . . . . . . 25
Steering Wheel Controls . . . . . . . 26
Cruise Control . . . . . . . . . . . . . . . . . 26
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . 27
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . 27
Forward Automatic Braking (FAB) . . . . . . . . . . . . . . . . 27
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . 28
Lane Keep Assist (LKA) . . . . . . . 28
Rear Vision Camera (RVC) . . . . 28
Parking Assist . . . . . . . . . . . . . . . . . 28
Power Outlets . . . . . . . . . . . . . . . . . 28
Universal Remote System . . . . . 29
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 29
Performance and Maintenance
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . 30
Tire Pressure Monitor . . . . . . . . . . 31
Fuel (Gasoline - Except L86 6.2L Engine) . . . . . . . . . . . . . 31 Fuel (Gasoline - L86 6.2L
Engine) . . . . . . . . . . . . . . . . . . . . . . . 32
Fuel (Diesel) . . . . . . . . . . . . . . . . . . . 32
E85 or FlexFuel . . . . . . . . . . . . . . . . 32
Engine Oil Life System . . . . . . . . 32
Driving for Better Fuel Economy . . . . . . . . . . . . . . . . . . . . . 33
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . . . 33

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
In Brief 7
1.Instrument Panel Illumination
Control 0182.
2. Integrated Trailer Brake Control (ITBC) System (If Equipped).
See Towing Equipment 0325.
3. Exterior Lamp Controls 0176.
Fog Lamps 0181 (If
Equipped).
4. Air Vents 0231.
5. Turn Signal Lever. See Turn
and Lane-Change Signals
0 181.
Windshield Wiper/Washer
0 130.
6. Favorite Switches (Out of View). See Steering Wheel
Controls 0129.
Volume Switches (Out of View).
See Steering Wheel Controls
0 129.
7. Instrument Cluster 0138.
8. Hazard Warning Flashers
0180.
9. Shift Lever. See Automatic
Transmission 0265. Tow/Haul Selector Button (If
Equipped). See
Tow/Haul
Mode 0271.
Range Selection Mode (If
Equipped). See Manual Mode
0 268.
10. Light Sensor. See Automatic
Headlamp System 0179.
11. Infotainment 0186.
12. Passenger Airbag On-Off Switch (If Equipped) (Out of
View). See Airbag On-Off
Switch 084.
13. Heated and Ventilated Front
Seats 065 (If Equipped).
14. Power Outlet 110/120V Alternating Current (If
Equipped). See Power Outlets
0 133.
15. Power Outlets 0133 (If
Equipped).
16. USB Port 0197 (If Equipped).
17.
gTraction Control/Electronic
Stability Control 0282.
0Pedal Adjust Switch (If
Equipped). See Adjustable
Throttle and Brake Pedal
0 256.
{Cargo Lamp 0183.
XParking Assist Button (If
Equipped). See Assistance
Systems for Parking or Backing
0 289.
ALane Keep Assist (LKA)
(1500 Series) 0297 (If
Equipped).
5Hill Descent Control Switch
(If Equipped). See Hill Descent
Control (HDC) 0284.
qExhaust Brake Switch (If
Equipped). See “Exhaust
Brake” in the Duramax diesel
supplement.
gPower Take Off (PTO)
Switch (If Equipped). See the
Duramax diesel supplement.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
In Brief 13
.Tilt the top of the control forward
to raise.
See Reclining Seatbacks 061.
Memory Features
Crew/Double Cab Shown, Other
Models Similar
If equipped, memory seats allow two
drivers to store and recall their
unique seat positions for driving the
vehicle, and a shared exit position
for getting out of the vehicle. Other
feature positions may also be set,
such as power mirrors, power
steering wheel, and adjustable
pedals, if equipped. Memory positions are linked to RKE
transmitter 1 or 2 for automatic
memory recalls.
Before storing, adjust all available
memory feature positions. Turn the
ignition on and then press and
release SET; a beep will sound.
Then immediately press and hold 1,
2, or
B(Exit) on the driver door
until two beeps sound. To manually
recall these positions, press and
hold 1, 2, or
Buntil the saved
position is reached.
When Auto Memory Recall is
enabled in vehicle personalization,
positions previously stored to
memory buttons 1 and 2 are
recalled when the ignition is
changed from off to on or ACC/
ACCESSORY.
When Easy Exit Options is enabled
in vehicle personalization, the
feature automatically recalls the
previously stored exit position when
exiting the vehicle. See Memory
Seats 062.
Heated and Ventilated
Seats
Heated and Ventilated Seat
Buttons Shown, Heated Seat Buttons Similar
If equipped, the buttons are on the
center stack. To operate, the engine
must be running.
Press
Ito heat the driver or
passenger seatback only.
Press
Jto heat the driver or
passenger seat cushion and
seatback.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
14 In Brief
PressCto ventilate the driver or
passenger seat.
See Heated and Ventilated Front
Seats 065.
Head Restraint
Adjustment
Do not drive until the head restraints
for all occupants are installed and
adjusted properly.
To achieve a comfortable seating
position, change the seatback
recline angle as little as necessary
while keeping the seat and the head
restraint height in the proper
position.
See Head Restraints 058 and
Power Seat Adjustment 060.
Seat Belts
Refer to the following sections for
important information on how to use
seat belts properly:
.
Seat Belts 069.
. How to Wear Seat Belts Properly
070.
. Lap-Shoulder Belt 071.
. Lower Anchors and Tethers for
Children (LATCH System) 099.
Passenger Sensing
System
The passenger sensing system,
if equipped, turns off the front
outboard passenger frontal airbag
under certain conditions. No other
airbag is affected by the passenger
sensing system.
If the vehicle has one of the
indicators pictured in the following
illustrations, then the vehicle has a
passenger sensing system for the
front outboard passenger position
unless there is an airbag off switch
on the instrument panel endcap.
If there is an airbag off switch, the
vehicle does not have a passenger
sensing system. See Airbag On-Off
Switch 084 for more information.
The passenger airbag status
indicator will be visible on the
overhead console when the vehicle
is started.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Keys, Doors, and Windows 39
Caution
When replacing the battery, do
not touch any of the circuitry on
the transmitter. Static from your
body could damage the
transmitter.
To replace the battery:
1. Separate and remove the back cover of the transmitter with a
flat, thin object, such as a coin.
2. Press and slide the batterydown toward the pocket of the
transmitter in the direction of
the key ring. Do not use a
metal object.
3. Remove the battery.
4. Insert the new battery, positive side facing up. Replace with a
CR2032 or equivalent battery.
5. Push together the transmitter back cover top side first, and
then the bottom toward the
key ring.
Remote Vehicle Start
If equipped with the remote start
feature, the climate control system
will come on when the vehicle is
started remotely, depending on the
outside temperature.
The rear defog and heated and
ventilated seats, if equipped, may
also come on. See Heated and
Ventilated Front Seats 065 and
Vehicle Personalization 0165.
Laws in some communities may
restrict the use of remote starters.
Check local regulations for any
requirements on remote starting of
vehicles.
Do not use remote start if the
vehicle is low on fuel.
The vehicle cannot be remote
started if:
. The key is in the ignition.
. The hood is not closed.
. There is an emission control
system malfunction and the
malfunction indicator lamp is on.
. Fuel level is too low.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Seats and Restraints 57
Seats and
Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . . . 58
Front Seats
Seat Adjustment . . . . . . . . . . . . . . . 59
Center Seat . . . . . . . . . . . . . . . . . . . . 59
Power Seat Adjustment . . . . . . . . 60
Lumbar Adjustment . . . . . . . . . . . . 60
Reclining Seatbacks . . . . . . . . . . . 61
Memory Seats . . . . . . . . . . . . . . . . . 62
Heated and Ventilated FrontSeats . . . . . . . . . . . . . . . . . . . . . . . . . 65
Rear Seats
Rear Seats (Double Cab FullBench) . . . . . . . . . . . . . . . . . . . . . . . 66
Rear Seats (Split Bench) . . . . . . 68
Seat Belts
Seat Belts . . . . . . . . . . . . . . . . . . . . . 69
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . 70
Lap-Shoulder Belt . . . . . . . . . . . . . 71
Seat Belt Use During Pregnancy . . . . . . . . . . . . . . . . . . . . 74
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . 75 Seat Belt Extender . . . . . . . . . . . . . 75
Safety System Check . . . . . . . . . . 75
Seat Belt Care . . . . . . . . . . . . . . . . . 76
Replacing Seat Belt System
Parts after a Crash . . . . . . . . . . . 76
Airbag System
Airbag System . . . . . . . . . . . . . . . . . 77
Where Are the Airbags? . . . . . . . 78
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . 80
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . 82
How Does an Airbag Restrain? . . . . . . . . . . . . . . . . . . . . . 82
What Will You See after an Airbag Inflates? . . . . . . . . . . . . . . 82
Airbag On-Off Switch . . . . . . . . . . 84
Passenger Sensing System . . . 86
Servicing the Airbag-Equipped Vehicle . . . . . . . . . . . . . . . . . . . . . . . 90
Adding Equipment to the Airbag-Equipped Vehicle . . . . . 90
Airbag System Check . . . . . . . . . . 91
Replacing Airbag System Parts after a Crash . . . . . . . . . . . . . . . . . 92
Child Restraints
Older Children . . . . . . . . . . . . . . . . . 92
Infants and Young Children . . . . 94
Child Restraint Systems . . . . . . . 96 Where to Put the Restraint . . . . . 98
Lower Anchors and Tethers for
Children (LATCH System) . . . . 99
Replacing LATCH System Parts After a Crash . . . . . . . . . . 111
Securing Child Restraints (With the Seat Belt in the
Rear Seat) . . . . . . . . . . . . . . . . . . 111
Securing Child Restraints (With the Seat Belt in the Center
Front Seat) . . . . . . . . . . . . . . . . . . 114
Securing Child Restraints (With the Seat Belt in the Front
Passenger Seat) . . . . . . . . . . . . 115

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Seats and Restraints 65
To stop Easy Exit Recall movement,
press any of the following memory
controls:
.Power seat
. Memory SET, 1, 2, or
B
.Power mirror, with the driver or
passenger side mirror selected
. Power steering wheel,
if equipped
. Adjustable pedals, if equipped
Obstructions
If something has blocked the driver
seat and/or power steering wheel
while recalling a memory position,
the recall may stop. Remove the
obstruction and try the recall again.
If the memory position still does not
recall, see your dealer for service.
Heated and Ventilated
Front Seats
{Warning
If temperature change or pain to
the skin cannot be felt, the seat
heater may cause burns. To
reduce the risk of burns, 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 Ventilated Seat
Buttons Shown, Heated Seat Buttons Similar
If equipped, the buttons are on the
center stack. To operate, the engine
must be running.
Press
Ito heat the driver or
passenger seatback only.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
66 Seats and Restraints
PressJto heat the driver or
passenger seat cushion and
seatback.
Press
Cto ventilate the driver or
passenger seat.
The indicator light on the button
comes on when this feature is on.
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 indicator lights
next to the buttons indicate three for
the highest setting and one for the
lowest. If the heated seats are on
high for an extended time, their level
may automatically be lowered. Remote Start Auto Heated and
Ventilated Seats
During a remote start, the heated or
ventilated seats can be turned on
automatically. When it is cold
outside, the heated seats turn on,
and when it is hot outside the
ventilated seats turn on. The heated
or ventilated seats are canceled
when the ignition is turned on. Press
the heated or ventilated seat button
to use the heated or ventilated seats
after the vehicle is started.
The heated or ventilated seat
indicator lights do not turn on during
a remote start.
The temperature performance of an
unoccupied seat may be reduced.
This is normal.
The heated or ventilated seats will
not turn on during a remote start
unless they are enabled in the
vehicle personalization menu.
See
Remote Vehicle Start 039 and
Vehicle Personalization 0165.
Rear Seats
Rear Seats (Double Cab
Full Bench)
Rear Seat Reminder (Full
Bench Only)
If equipped, the message REAR
SEAT REMINDER LOOK IN REAR
SEAT displays under certain
conditions indicating there may be
an item or passenger in the rear
seat. Check before exiting the
vehicle.
This feature will activate when a
second row door is opened while
the vehicle is on or up to 10 minutes
before the vehicle is turned on.
There will be an alert when the
vehicle is turned off. The alert does
not directly detect objects in the rear
seat; instead, under certain
conditions, it detects when a rear
door is opened and closed,
indicating that there may be
something in the rear seat.