2018 GMC SIERRA window

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
ContentsIntroduction . . . . . . . . . . . . . . . . . . . . . . 2
In Brief . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Keys, Doors, and Windows . . . . . 34
Seats and Restraints . . . . . . . . . . . 57
Storage . . . . . . . . . . . . . . . . . . . . . . . 124
Instruments and Controls . . . . . . 128
Lighting . . . . . . . . . . . . . . . . . . . . . . . 176
Infotainment System . . . . . . . . . . 186
Climate Controls . . . . . . . . . . . . . . 224
Driving and Operating . . . . . . . . . 234
Vehicle Care . . . . . . . . . . . . . . . . . . 341
Service and Maintenance . . . . . 446
Technical Data . . . . . . . . . . . . . . . . 460
Customer Information . . . . . . . . . 465
Reporting Safety Defects . . . . . . 476
OnStar . . . . . . . . . . . . . . . . . . . . . . . . 479
Index . . . . . . . . . . . . . . . . . . . . 491

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
10 In Brief
Power Door Locks
Crew/Double Cab Premium TrimShown, Other Models Similar
Q:Press to lock the doors.
K:Press to unlock the doors.
See Door Locks 040 and Power
Door Locks 041.
Windows
Power Windows
Crew/Double Cab Premium Trim
Shown, Other Models Similar
Power windows work when the
ignition is on, in ACC/ACCESSORY,
or when Retained Accessory Power
(RAP) is active. See Retained
Accessory Power (RAP) 0260.
Using the window switch, press to
open or pull to close the window.
The windows may be temporarily
disabled if they are used repeatedly
within a short time.
Power Sliding Rear Window
If equipped, the power sliding rear
window works when the ignition has
been turned on or to ACC/
ACCESSORY, or when Retained
Accessory Power (RAP) is active.
See Retained Accessory Power
(RAP) 0260.
Using the window switch, press to
open or pull to close the window.
The power sliding rear window
cannot be operated manually. See
“Power Sliding Rear Window” in
Rear Windows 054.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
In Brief 21
Climate Control System (with Air Conditioning)
1. Fan Control
2. A/C (Air Conditioning)
3. Air Delivery Mode Control
4. Defrost
5. TEMP (Temperature Control)6.K(Rear Window Defogger, If
Equipped)
f(Outside Heated Mirror, If
Equipped)
8(Outside Air, If Equipped)
7. Air Recirculation

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
22 In Brief
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 TemperatureControl
7. SYNC (Synchronized Temperature) 8. Rear Window Defogger
9. Power Button
10. Air Recirculation
11. AUTO (Automatic Operation)
See Dual Automatic Climate Control
System 0228.
Transmission
Range Selection Mode
The Range Selection Mode switch,
if equipped, is on the shift lever.
1. To enable the Range Selection feature, move the shift lever to
the L (Manual Mode) position.
The current range will appear
next to the L. 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 0268.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
34 Keys, Doors, and Windows
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . 37
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . . 37
Remote Vehicle Start . . . . . . . . . . 39
Door Locks . . . . . . . . . . . . . . . . . . . . 40
Power Door Locks . . . . . . . . . . . . . 41
Automatic Door Locks . . . . . . . . . 41
Lockout Protection . . . . . . . . . . . . . 42
Safety Locks . . . . . . . . . . . . . . . . . . . 42
Doors
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . 43
Power Assist Steps . . . . . . . . . . . . 43
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . 44
Vehicle Alarm System . . . . . . . . . 44
Immobilizer . . . . . . . . . . . . . . . . . . . . 46
Immobilizer Operation . . . . . . . . . 46
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . 47
Manual Mirrors . . . . . . . . . . . . . . . . . 47 Trailer-Tow Mirrors . . . . . . . . . . . . . 48
Power Mirrors . . . . . . . . . . . . . . . . . . 48
Folding Mirrors . . . . . . . . . . . . . . . . . 49
Heated Mirrors . . . . . . . . . . . . . . . . . 50
Automatic Dimming Mirror . . . . . 50
Blind Spot Mirrors . . . . . . . . . . . . . . 50
Reverse Tilt Mirrors . . . . . . . . . . . . 51
Interior Mirrors
Interior Rearview Mirrors . . . . . . . 51
Manual Rearview Mirror . . . . . . . . 52
Automatic Dimming Rearview
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . 52
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . 52
Manual Windows . . . . . . . . . . . . . . 52
Power Windows . . . . . . . . . . . . . . . 52
Rear Windows . . . . . . . . . . . . . . . . . 54
Sun Visors . . . . . . . . . . . . . . . . . . . . . 55
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 55
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.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Keys, Doors, and Windows 35
{Warning
If the key is unintentionally
rotated while the vehicle is
running, the ignition could be
moved out of the RUN position.
This could be caused by heavy
items hanging from the key ring,
or by large or long items attached
to the key ring that could be
contacted by the driver or
steering wheel. If the ignition
moves out of the RUN position,
the engine will shut off, braking
and steering power assist may be(Continued)
Warning (Continued)
impacted, and airbags may not
deploy. To reduce the risk of
unintentional rotation of the
ignition key, do not change the
way the ignition key and Remote
Keyless Entry (RKE) transmitter,
if equipped, are connected to the
provided key rings.
The ignition key and key rings, and
RKE transmitter, if equipped, are
designed to work together as a
system to reduce the risk of
unintentionally moving the key out
of the RUN position. The ignition
key has a small hole to allow
attachment of the provided key ring.
It is important that any replacement
ignition keys have a small hole. See
your dealer if a replacement key is
required.
The combination and size of the
rings that came with your keys were
specifically selected for your
vehicle. The rings are connected to
the key like two links of a chain to reduce the risk of unintentionally
moving the key out of the RUN
position. Do not add any additional
items to the ring attached to the
ignition key. Attach additional items
only to the second ring, and limit
added items to a few essential keys
or small, light items no larger than
an RKE transmitter.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
36 Keys, Doors, and Windows
Interference from radio-frequency
identification (RFID) tags may
prevent the key from starting the
vehicle. Keep RFID tags away from
the key when starting the vehicle.
The key is used for the ignition, all
door locks and glove box,
if equipped.
If equipped with memory seats,
keys 1 and 2 are linked to seating
positions of memory 1 or 2. See
Memory Seats062.
Programming Keys
Follow these procedures to program
up to eight keys to the vehicle. Programming with Two
Recognized Keys
To program a new key:
1. Insert the original, already programmed key in the ignition
and turn the ignition on.
2. Turn the ignition off, and remove the key.
3. Quickly, within five seconds, insert the second original
already programmed key in the
ignition and turn the ignition on.
4. Turn the ignition off, and remove the key.
5. Insert the key to be programmed and turn the
ignition on within five seconds.
6. The security light will turn off once the key has been
programmed.
7. Repeat Steps 1–5 if additional keys are to be programmed.
If a key is lost or damaged, see your
dealer to have a new key made. Programming without
Recognized Keys
Program a new key to the vehicle
when a recognized key is not
available. Canadian regulations
require that owners see their dealer.
If two currently recognized keys are
not available, follow this procedure
to program the first key.
This procedure will take
approximately 30 minutes to
complete for the first key. The
vehicle must be off and all of the
keys you wish to program must be
with you.
1. Insert the new vehicle key into the ignition.
2. Turn the ignition on. The security light will come on.
3. Wait 10 minutes until the security light turns off.
4. Turn the ignition off.
5. Repeat Steps 2–4 two more times. After the third time, turn
the ignition on; the key is