clock GMC SIERRA DENALI 2015 Owners Manual

Black plate (4,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
4-4 Storage
{ CautionThe truck bed walls will collapse if
the tie-downs are overloaded.
To install:
1. Insert a tie-down loop assembly
until it is flush with the truck
bed wall. 2. Turn the tie-down loop clockwise
to tighten. The tie-down will be
hard to turn until the toggle
moves past the installation point
on the toggle guide.
3. Fasten the tie-down firmly by
hand only. Do not use tools.
To remove:
1. Remove the tie-down loop
completely by turning
counterclockwise while holding
the backing plate against the
truck bed wall.
2. Pull the backing plate away from
the truck bed wall until a click is
heard. This locks the toggle into
position on the toggle guide.
3. Push the backing plate against
the truck bed wall. This allows
the toggle nut to spin.
4. Remove the backing plate,
toggle guide, and toggle nut
from the truck bed wall
completely. 5. Reinstall the tie-down loop
through the backing plate into
the toggle nut for reuse.

Black plate (1,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
Instruments and Controls 5-1
Instruments and
Controls Controls Steering Wheel Adjustment . . . 5-2
Steering Wheel Controls . . . . . . 5-2
Heated Steering Wheel . . . . . . . 5-3
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Windshield Wiper/Washer . . . . . 5-3
Compass . . . . . . . . . . . . . . . . . . . . . 5-4
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Power Outlets . . . . . . . . . . . . . . . . . 5-5
Warning Lights, Gauges, and
Indicators Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . . 5-8
Instrument Cluster . . . . . . . . . . . . 5-9
Speedometer . . . . . . . . . . . . . . . . 5-11
Odometer . . . . . . . . . . . . . . . . . . . . 5-11
Trip Odometer . . . . . . . . . . . . . . . 5-11
Tachometer . . . . . . . . . . . . . . . . . . 5-11
Fuel Gauge . . . . . . . . . . . . . . . . . . 5-12
Engine Oil Pressure
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-12
Engine Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-13 Transmission Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-14
Voltmeter Gauge . . . . . . . . . . . . . 5-15
Safety Belt Reminders . . . . . . . 5-15
Airbag Readiness Light . . . . . . 5-16
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . 5-17
Charging System Light . . . . . . 5-18
Malfunction
Indicator Lamp . . . . . . . . . . . . . 5-18
Brake System Warning
Light . . . . . . . . . . . . . . . . . . . . . . . 5-21
Antilock Brake System (ABS)
Warning Light . . . . . . . . . . . . . . 5-21
Four-Wheel-Drive Light . . . . . . 5-22
Tow/Haul Mode Light . . . . . . . . 5-22
Hill Descent Control Light . . . . 5-22
Lane Departure Warning
(LDW) Light . . . . . . . . . . . . . . . . 5-22
Vehicle Ahead Indicator . . . . . . 5-23
Traction Off Light . . . . . . . . . . . . 5-23
StabiliTrak ®
OFF Light . . . . . . . 5-23
Traction Control System
(TCS)/StabiliTrak ®
Light . . . . 5-24
Engine Coolant Temperature
Warning Light . . . . . . . . . . . . . . 5-24
Tire Pressure Light . . . . . . . . . . 5-25
Engine Oil Pressure Light . . . . 5-25
Low Fuel Warning Light . . . . . . 5-25 Security Light . . . . . . . . . . . . . . . . 5-26
High-Beam On Light . . . . . . . . . 5-26
Front Fog Lamp Light . . . . . . . . 5-26
Lamps On Reminder . . . . . . . . . 5-26
Cruise Control Light . . . . . . . . . 5-27
Door Ajar Light . . . . . . . . . . . . . . 5-27
Information Displays Driver Information
Center (DIC) . . . . . . . . . . . . . . . 5-27
Vehicle Messages Vehicle Messages . . . . . . . . . . . 5-31
Battery Voltage and Charging
Messages . . . . . . . . . . . . . . . . . . 5-31
Brake System Messages . . . . 5-32
Compass Messages . . . . . . . . . 5-32
Door Ajar Messages . . . . . . . . . 5-33
Engine Cooling System
Messages . . . . . . . . . . . . . . . . . . 5-33
Engine Oil Messages . . . . . . . . 5-34
Engine Power Messages . . . . 5-34
Fuel System Messages . . . . . . 5-35
Key and Lock Messages . . . . . 5-35
Lamp Messages . . . . . . . . . . . . . 5-35
Object Detection System
Messages . . . . . . . . . . . . . . . . . . 5-35
Ride Control System
Messages . . . . . . . . . . . . . . . . . . 5-36

Black plate (4,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
5-4 Instruments and Controls Windshield Washer
{ WarningIn freezing weather, do not use
the washer until the windshield is
warmed. Otherwise the washer
fluid can form ice on the
windshield, blocking your vision.
L m (Washer Fluid): Push the
paddle marked with the windshield
washer symbol at the top of the turn
signal lever, to spray washer fluid
and activate the wipers. The wipers
will continue until the paddle is
released or the maximum wash time
is reached. When the paddle is
released, additional wipes may
occur depending on how long the
windshield washer had been
activated. See Washer Fluid on
page 10-25 for information on filling
the windshield washer fluid
reservoir. Compass The vehicle may have a compass
display on the Driver Information
Center (DIC). The compass receives
its heading and other information
from the Global Positioning
System (GPS) antenna,
StabiliTrak ®
, and vehicle speed
information.
The compass system is designed to
operate for a certain number of
miles or degrees of turn before
needing a signal from the GPS
satellites. When the compass
display shows CAL, drive the
vehicle for a short distance in an
open area where it can receive a
GPS signal. The compass system
will automatically determine when a
GPS signal is restored and provide
a heading again. See Compass
Messages on page 5-32 for the
messages that may be displayed for
the compass. Clock Setting the Time and Date with
Faceplate Controls To set the time or date:
1. Select SETTINGS from the
Home Page, then select Time
and Date.
2. Select the desired function.
3. Turn the MENU knob to increase
or decrease the value.
4. Press the MENU knob to go to
the next value. After the last
value is selected, the system will
update and return to the Settings
menu. Press
o BACK to go to
the last menu and save the
changes.
Auto Set requires an OnStar
subscription.
If auto timing is set, the time
displayed on the clock may not
update immediately when driving
into a new time zone.

Black plate (5,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
Instruments and Controls 5-5To set the clock display:
1. Select SETTINGS from the
Home Page, then select Time
and Date.
2. Select Clock Display.
3. Turn the MENU knob to Off
or On.
4. Press the MENU knob to select.
Press
o BACK to go to the last
menu and save the changes.
Setting the Time and Date with
Touchscreen Controls To set the time:
1. Press the SETTINGS screen
button from the Home Page,
then press Time and Date.
2. Press Set Time and press
« or
ª to increase or decrease
hours, minutes, and AM or PM.
Press 12 – 24 Hr for 12 or
24 hour clock.
3. Press the
} screen button to go
back to the previous menu. Auto Set requires an OnStar
subscription.
If auto timing is set, the time
displayed on the clock may not
update immediately when driving
into a new time zone.
To set the date:
1. Press the SETTINGS screen
button from the Home Page,
then press Time and Date.
2. Press Set Date and press
« or
ª to increase or decrease
month, day, or year.
3. Press the
} screen button to go
back to the previous menu.
To set the clock display:
1. Press the SETTINGS screen
button and press Time and Date.
2. Press Clock Display and press
OFF or ON to turn the clock
display off or on.
3. Press the
} screen button to go
back to the previous menu. Power Outlets Accessory power outlets can be
used to plug in electrical equipment,
such as a cell phone, MP3
player, etc.
The vehicle may have up to four
accessory power outlets.
Vehicles with a Center Console .
One or two in front of the
cupholders on the center
console. .
One inside the center console. .
One on the rear of the center
console.
Vehicles with Bench Seats .
One on the center stack below
the climate control system. .
One or two in the storage area
on the bench seat.
Lift the cover to access and replace
when not in use.

Black plate (43,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
Instruments and Controls 5-43Personalization Menus
The following list of menu items may
be available: .
Time and Date .
Language (Language) .
Valet Mode .
Teen Driver .
Radio .
Vehicle .
Bluetooth .
Voice .
Display .
Rear Camera .
Return to Factory Settings .
Software Information
Detailed information for each menu
follows.
Time and Date
Manually set the time and date. See
Clock on page 5-4 . Language (Language) Select Language, then select from
the available language(s).
The selected language will display
on the system, and voice
recognition will reflect the selected
language.
Valet Mode (If Equipped) This will lock the infotainment
system and steering wheel controls.
It may also limit top speed, power,
and access to vehicle storage
locations (if equipped).
To enable valet mode:
1. Enter a four-digit code on the
keypad.
2. Press Enter to go to the
confirmation screen.
3. Re-enter the four-digit code.
Press LOCK or UNLOCK to lock or
unlock the system. Press Back to go
back to the previous menu. Teen Driver (If Equipped) Press and the following may
display: .
View Report Card .
Manage Settings .
Change PIN .
Key Registration .
Clear All Teen Keys/PIN
View Report Card
This allows the driver ’ s driving
habits to be viewed. See “ Teen
Driver ” in “ Settings ” in the
infotainment manual.
Manage Settings
Press and the following may
display: .
Audio Volume Limit .
Teen Driver Speed Limiter .
Teen Driver Speed Warning

Black plate (2,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
8-2 Climate Controls Automatic Operation
The system automatically controls
the fan speed, air delivery, air
conditioning, and recirculation in
order to heat or cool the vehicle to
the desired temperature.
When the indicator light is on, the
system is in full automatic operation.
If the air delivery mode or fan
setting is manually adjusted, the
auto indicator turns off and displays
will show the selected settings.
To place the system in
automatic mode:
1. Press AUTO.
2. Set the driver and passenger
temperature.
To find your comfort setting, start
with 22°C (72°F) and allow the
system time to stabilize. Then
adjust the temperature as
needed for best comfort.
To improve fuel efficiency and to
cool the vehicle faster, recirculation
may be automatically selected in
warm weather. The recirculation light will not come
on when automatically controlled.
Press
@ to manually select
recirculation; press it again to select
outside air.
Do not cover the solar sensor on the
top of the instrument panel near the
windshield. This sensor regulates
air temperature based on sun load.
See “ Sensors ” later in this section.
Manual Operation
O (On/Off): Press to turn the
climate control system on or off.
Outside air still enters the vehicle,
and is directed to the floor. This
direction can be changed by
pressing the air delivery mode.
9 (Fan Control): Turn clockwise
or counterclockwise to increase or
decrease the fan speed. Press the
knob to turn the fan off.
Press AUTO to return to automatic
operation. Driver and Passenger
Temperature Control: The
temperature can be adjusted
separately for the driver and
passenger.
Turn the knob clockwise or
counterclockwise to increase or
decrease the driver or passenger
temperature setting.
SYNC (Synchronized
Temperature): Press to link the
passenger temperature setting to
the driver setting. The SYNC
indicator light will turn on. When the
passenger setting is adjusted, the
SYNC indicator light is off.
The driver side or passenger side
temperature display shows the
temperature setting increasing or
decreasing.
Air Delivery Mode Control:
Press
Y ,
\ ,
[ , or
- to change
the direction of the airflow. An
indicator light comes on in the
selected mode button.

Black plate (42,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
9-42 Driving and Operating Shifting Into 4
nWhen 4
n is engaged, vehicle speed
should be kept below 72 km/h
(45 mph).
1. The ignition must be in ON/RUN
and the vehicle must be stopped
or moving less than 5 km/h
(3 mph) with the transmission in
N (Neutral). It is best for the
vehicle to be moving
1.6 to 3.2 km/h (1 to 2 mph).
2. Turn the knob to 4
n . Wait for the
4
n indicator light to stop flashing
before shifting the transmission
into gear.
If the transmission is in gear and/or
moving more than 5 km/h (3 mph),
the 4
n indicator light will flash for
30 seconds and not complete the
shift. After 30 seconds the transfer
case will shift to 4
m . Turn the knob
to 4
m to see the indicator. With the
vehicle moving less than 5 km/h
(3 mph), and the transmission in
N (Neutral), attempt the shift again. Shifting Out of 4
n 1. To shift out of 4
n the vehicle
must be stopped or moving less
than 5 km/h (3 mph) with the
transmission in N (Neutral) and
the ignition in ON/RUN. It is best
for the vehicle to be moving
1.6 to 3.2 km/h (1 to 2 mph).
2. Turn the knob to 4
m or 2
m . Wait
for the 4
m or 2
m indicator light to
stop flashing before shifting the
transmission into gear.
If the transmission is in gear and/or
moving more than 5 km/h (3 mph),
the 4
m or 2
m indicator light will flash
for 30 seconds, but will not complete
the shift. With the vehicle moving
less than 5 km/h (3 mph), and the
transmission in N (Neutral), attempt
the shift again.
Shifting Into N (Neutral)
To shift to N (Neutral):
1. Park the vehicle on a level
surface. 2. Set the parking brake and press
and hold the brake pedal. See
Parking Brake on page 9-47 .
3. Start the vehicle or turn the
ignition to ON/RUN.
4. Shift the transmission to
N (Neutral).
5. Shift the transfer case to 2
m .
6. Turn the transfer case knob
clockwise to N (Neutral) until it
stops and hold it there until the
N (Neutral) light starts blinking.
This will take at least
10 seconds. Then slowly release
the dial to the 4
n position. The
N (Neutral) light will come on
when the transfer case shift to
N (Neutral) is complete.
7. With the engine running, verify
that the transfer case is in
N (Neutral) by shifting the
transmission to R (Reverse),
then shift the transmission to
D (Drive). There should be no
movement of the vehicle while
shifting the transmission.

Black plate (45,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
Driving and Operating 9-452. Turn the knob to 4
n . Wait for the
4
n indicator light to stop flashing
before shifting the transmission
into gear.
{ CautionShifting the transmission into gear
before the requested mode
indicator light has stopped
flashing could damage the
transfer case.
If the transmission is in gear and/or
moving more than 5 km/h (3 mph),
the 4
n indicator light will flash for
30 seconds and not complete the
shift. After 30 seconds the transfer
case will shift to 4
m . Turn the knob
to 4
m to display the indicator. With
the vehicle moving less than 5 km/h
(3 mph), and the transmission in
N (Neutral), attempt the shift again. Shifting Out of 4
n To shift out of 4
n :
1. The vehicle must be stopped or
moving less than 5 km/h (3 mph)
with the transmission in
N (Neutral) and the ignition in
ON/RUN. It is best for the
vehicle to be moving
1.6 to 3.2 km/h (1 to 2 mph).
2. Turn the knob to 4
m , AUTO,
or 2
m . Wait for the 4
m , AUTO,
or 2
m indicator light to stop
flashing before shifting the
transmission into gear.
{ Caution
Shifting the transmission into gear
before the requested mode
indicator light has stopped
flashing could damage the
transfer case. If the transmission is in gear and/or
moving more than 5 km/h (3 mph),
the 4
m , AUTO, or 2
m indicator light
will flash for 30 seconds but will not
complete the shift. With the vehicle
moving less than 5 km/h (3 mph),
and the transmission in N (Neutral),
attempt the shift again.
Shifting Into N (Neutral)
To shift:
1. Park the vehicle on a level
surface.
2. Set the parking brake and press
and hold the brake pedal. See
Parking Brake on page 9-47 .
3. Start the vehicle or turn the
ignition to ON/RUN.
4. Shift the transmission to
N (Neutral).
5. Shift the transfer case to 2
m .
6. Turn the transfer case knob
clockwise to N (Neutral) until it
stops and hold it there until the
N (Neutral) light starts blinking.

Black plate (66,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
9-66 Driving and Operating
Filling the Tank If the vehicle has a diesel engine,
see the Duramax diesel supplement
for more information.
{ WarningFuel vapors and fuel fires burn
violently and can cause injury or
death. .
To help avoid injuries to you
and others, read and follow
all the instructions on the fuel
pump island. .
Turn off the engine when
refueling. .
Keep sparks, flames, and
smoking materials away
from fuel. .
Do not leave the fuel pump
unattended. .
Do not reenter the vehicle
while pumping fuel.
(Continued) Warning (Continued) .
Keep children away from the
fuel pump and never let
children pump fuel. .
Fuel can spray out if the fuel
cap is opened too quickly.
This spray can happen if the
tank is nearly full, and is
more likely in hot weather.
Open the fuel cap slowly and
wait for any hiss noise to stop
then unscrew the cap all
the way. The fuel cap is behind a hinged fuel
door on the driver side of the
vehicle. Vehicles that have a
FlexFuel badge and a yellow fuel
cap can use either unleaded
gasoline or ethanol fuel containing
up to 85% ethanol (E85). See E85
or FlexFuel on page 9-65 .
To remove the fuel cap, turn it
slowly counterclockwise.
If the vehicle is a dual fuel tank
chassis cab model, and it runs out
of fuel, refuel the front fuel tank first
to ensure a quick restart.

Black plate (67,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
Driving and Operating 9-67Be careful not to spill fuel. Do not
top off or overfill the tank and wait a
few seconds after you have finished
pumping before removing the
nozzle. Clean fuel from painted
surfaces as soon as possible. See
Exterior Care on page 10-96 .
When replacing the fuel cap, turn it
clockwise until it clicks. It will require
more effort to turn the fuel cap on
the last turn as you tighten it. Make
sure the cap is fully installed. The
diagnostic system can determine if
the fuel cap has been left off or
improperly installed. This would
allow fuel to evaporate into the
atmosphere. See Malfunction
Indicator Lamp on page 5-18 .
The TIGHTEN GAS CAP message
displays on the Driver Information
Center (DIC) if the fuel cap is not
properly installed. See Fuel System
Messages on page 5-35 for more
information. { WarningIf a fire starts while you are
refueling, do not remove the
nozzle. Shut off the flow of fuel by
shutting off the pump or by
notifying the station attendant.
Leave the area immediately.
{ CautionIf a new fuel cap is needed, be
sure to get the right type of cap
from your dealer. The wrong type
of fuel cap may not fit properly,
may cause the malfunction
indicator lamp to light, and could
damage the fuel tank and
emissions system. See
Malfunction Indicator Lamp on
page 5-18 . Filling a Portable Fuel
Container
{ WarningFilling a portable fuel container
while it is in the vehicle can cause
fuel vapors that can ignite either
by static electricity or other
means. You or others could be
badly burned and the vehicle
could be damaged. Always: .
Use approved fuel
containers. .
Remove the container from
the vehicle, trunk, or pickup
bed before filling. .
Place the container on the
ground. .
Place the nozzle inside the fill
opening of the container
before dispensing fuel, and
(Continued)