change time GMC SIERRA 2017 Owner's Manual

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
In Brief 17
Interior Lighting
Dome Lamps
There are dome lamps in the
overhead console and the headliner,
if equipped.
To change the dome lamp settings,
press the following:
OFF :Turns the lamps off, even
when a door is open.
DOOR : The lamps come on
automatically when a door is
opened.
ON : Turns all dome lamps on. Reading Lamps
There are reading lamps in the
overhead console and the headliner,
if equipped. To operate, the ignition
must be on or in ACC/ACCESSORY
or using Retained Accessory
Power (RAP).
Pressmornnext to each reading
lamp to turn it on or off.
For more information about interior
lighting, see Instrument Panel
Illumination Control 0184.
Exterior Lighting
The exterior lamp control is on the
instrument panel to the left of the
steering wheel.
O:Turns off the automatic
headlamps and Daytime Running
Lamps (DRL). Turn the headlamp
control to
Oagain to turn the
automatic headlamps or DRL
back on.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
In Brief 31
Fuel (Diesel)
For diesel vehicles, do not use
gasoline. See“Fuel for Diesel
Engines” in the Duramax diesel
supplement.
E85 or FlexFuel
FlexFuel Possible
Certain models are compatible with
E85 fuel. See E85 or FlexFuel
0 317.
Engine Oil Life System
The engine oil life system calculates
engine oil life based on vehicle use
and, on most vehicles, displays a
DIC message when it is necessary
to change the engine oil and filter.
The oil life system should be reset
to 100% only following an oil
change. Resetting the Oil Life System
To reset the engine oil life system:
1. Display OIL LIFE REMAINING on the DIC.
See Driver Information Center
(DIC) (Base Level Cluster)
0 152 orDriver Information
Center (DIC) (Uplevel and
Denali Cluster) 0154. If the
vehicle does not have DIC
buttons, the vehicle must be in
P (Park) to access this display.
2. Press and hold
Von the DIC,
or the trip odometer reset stem
if the vehicle does not have
DIC buttons, for several
seconds. The oil life will
change to 100%.
The oil life system can also be reset
as follows: 1. Display OIL LIFE REMAINING on the DIC.
See Driver Information Center
(DIC) (Base Level Cluster)
0 152 orDriver Information
Center (DIC) (Uplevel and
Denali Cluster) 0154. 2. Fully press the accelerator
pedal slowly three times within
five seconds.
3. If the display changes to 100%, the system is reset.
See Engine Oil Life System 0367.
Driving for Better Fuel
Economy
Driving habits can affect fuel
mileage. Here are some driving tips
to get the best fuel economy
possible.
.
Avoid fast starts and accelerate
smoothly.
. Brake gradually and avoid
abrupt stops.
. Avoid idling the engine for long
periods of time.
. When road and weather
conditions are appropriate, use
cruise control.
. Always follow posted speed
limits or drive more slowly when
conditions require.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
44 Keys, Doors, and Windows
If the driver door is opened without
first unlocking with the RKE
transmitter, the horn will chirp and
the lights will flash to indicate
pre-alarm. If the vehicle is not
started, or the door is not unlocked
by pressing
Kon the RKE
transmitter during the 10-second
pre-alarm, the alarm will be
activated.
The alarm will also be activated if a
passenger door or the hood is
opened without first disarming the
system. When the alarm is
activated, the turn signals flash and
the horn sounds for about
30 seconds. The alarm system will
then re-arm to monitor for the next
unauthorized event.
Disarming the Alarm System
To disarm the alarm system or turn
off the alarm if it has been activated:
. Press
Kon the RKE transmitter.
. Start the vehicle. To avoid setting off the alarm by
accident:
.
Lock the vehicle after all
occupants have exited.
. Always unlock a door with the
RKE transmitter.
Unlocking the driver door with
the key will not disarm the
system or turn off the alarm.
How to Detect a Tamper
Condition
IfKis pressed on the RKE
transmitter and the horn chirps three
times, an alarm occurred previously
while the alarm system was armed.
If the alarm has been activated, a
message will appear on the DIC.
See Security Messages 0163.
Inclination Sensor and
Intrusion Sensor
In addition to the standard
theft-deterrent system features, this
system may also have an,
inclination sensor and intrusion
sensor. The inclination sensor can set off
the alarm if it senses movement of
the vehicle, such as a change in
vehicle orientation.
The intrusion sensor monitors the
vehicle interior, and can activate the
alarm if it senses unauthorized entry
into the vehicle’s interior. Do not
allow passengers or pets to remain
in the vehicle when the intrusion
sensor is activated.
Before arming the theft-deterrent
system and activating the intrusion
sensor:
.
Make sure all doors and
windows are completely closed.
. Secure any loose items such as
sunshades.
. Make sure there are no
obstructions blocking the
sensors in the front overhead
console.
. Close DVD screens, if equipped,
before leaving the vehicle.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
48 Keys, Doors, and Windows
Folding Mirrors
Crew/Double Cab Premium TrimShown, Other Models Similar
Power Folding
If equipped with power folding
mirrors:
1. Press (2) to fold the mirrors out to the driving position.
2. Press (2) again to fold the mirrors in to the folded position.
The mirrors may also include a
memory function that works with the
memory seats. See Memory Seats
0 60. 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.
Manually fold both mirrors if they
are out of sync. 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 Mirror Folding
If equipped, with the ignition off,
press and hold
Qon the RKE
transmitter for approximately
one second to automatically fold the
exterior mirrors. Press and hold
K
on the RKE transmitter for
approximately one second to unfold.
See Remote Keyless Entry (RKE)
System Operation 036.
This feature is turned on or off
through vehicle personalization. See
Vehicle Personalization 0167.
Turn Signal Indicator
If equipped, indicator lights on the
mirror flash in the direction of the
turn or lane change.
Heated Mirrors
If equipped with heated mirrors:
K:Press to heat the outside
mirrors. If the vehicle has trailer-tow
mirrors, only the upper glass of the
mirror is heated. The lower convex
part of the trailer-tow mirrors is not
heated.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
Seats and Restraints 61
Automatically Recalling Memory
Positions (Auto Recall)
If programmed on in the vehicle
personalization menu, the Auto
(Automatic) Memory Recall feature
automatically recalls the current
driver’s previously stored 1 or 2
position when the ignition is
changed from OFF to ON/RUN or
ACC/ACCESSORY.
See “Auto Memory Recall” under
“Comfort and Convenience” in
Vehicle Personalization 0167.
To stop recall movement, press one
of the memory, power mirror or
power seat controls; or press the
adjustable pedal control (if
equipped).
RKE transmitters are not labeled
with a number. If your memory seat
position is stored to 1 or 2 but this
position is not automatically
recalling, then store your positions
to the other button or switch RKE
transmitters with the other driver. Easy Exit Recall
If programmed on in the vehicle
personalization menu, the easy exit
feature automatically recalls the
previously stored
B(Exit) position.
See “Storing Memory Positions”
listed previously. See also Vehicle
Personalization 0167.
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.
To stop recall movement, press one
of the memory, power mirror or
power seat controls; or press the
adjustable pedal control (if
equipped). Obstructions
If something has blocked the driver
seat and/or adjustable pedals while
recalling a memory position, the
recall may stop. Remove the
obstruction. Then do one of the
following:
.
For manual or automatic recall
positions, press and hold the
appropriate manual control for
two seconds. Try recalling again
by pressing the appropriate
memory button.
. For exit recall position, press
and hold the appropriate manual
control for the exit feature not
recalling for two seconds. Then
try recalling the exit position
again.
If the memory position is still not
recalling, see your dealer for
service.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
62 Seats and Restraints
Heated and Ventilated
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.
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.
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.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
Instruments and Controls 127
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 0158 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
oBACK
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.
To 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
oBACK to go to the last
menu and save the changes.
Setting the Time and Date with
Touchscreen Controls
To set the time:
1. Touch SETTINGS from the Home Page, then touch Time
and Date.
2. Touch Set Time and touch
«
orªto increase or decrease
hours, minutes, and AM or PM.
Touch 12–24 Hr for 12 or
24 hour clock.
3. Touch the
}or0screen
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.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
Instruments and Controls 153
Average Fuel Economy
The Average Fuel Economy display
shows the approximate average
liters per 100 kilometers (L/100 km)
or miles per gallon (mpg). This
number reflects only the
approximate average fuel economy
that the vehicle has right now, and
will change as driving conditions
change. This number is based on
the number of L/100 km (mpg)
recorded since the last time this
menu item was reset. Reset this
display by pressing the trip
odometer reset stem.
Tire Pressure
Turn the trip odometer reset stem
until a vehicle with the approximate
pressures of all four tires displays.
Tire pressure is displayed in either
kilopascal (kPa) or in pounds per
square inch (psi).
SeeTire Pressure Monitor System
0 410 andTire Pressure Monitor
Operation 0411. Remaining Oil Life
Turn the trip odometer reset stem
until REMAINING OIL LIFE
displays. An estimate of the oil's
remaining useful life is shown.
REMAINING OIL LIFE 99% means
99% of the current oil life remains.
When the remaining oil life is low,
the CHANGE ENGINE OIL SOON
message will appear on the display.
See
Engine Oil Messages 0159.
The oil should be changed as soon
as possible. See Engine Oil0364.
In addition to the engine oil life
system monitoring the oil life,
additional maintenance is
recommended in the Maintenance
Schedule. See Maintenance
Schedule 0455.
The Oil Life display must be reset
after each oil change. It will not
reset itself. Do not reset the Oil Life
display at any time other than when
the oil has just been changed.
It cannot be reset accurately until
the next oil change. To reset the
engine oil life system, see Engine
Oil Life System 0367. Transmission Fluid Temperature
The temperature of the automatic
transmission fluid displays in either
degrees Celsius (°C) or degrees
Fahrenheit (°F).
Trailer Brake
On vehicles with the Integrated
Trailer Brake Control (ITBC) system,
turn the trip odometer reset stem
until TRAILER GAIN and TRAILER
OUTPUT displays.
TRAILER GAIN shows the Trailer
Gain setting. This setting can be
adjusted from 0.0 to 10.0 with either
a trailer connected or disconnected.
TRAILER OUTPUT shows the
power output to the trailer anytime a
trailer with electric brakes is
connected. Output is displayed as a
bar graph. Dashes may appear in
the TRAILER OUTPUT display if a
trailer is not connected.
Hourmeter
This display shows the total number
of hours the engine has run.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
Instruments and Controls 155
Speed :Shows the vehicle speed in
either kilometers per hour (km/h) or
miles per hour (mph). The vehicle
odometer is also shown on
this page.
Trip A or Trip B, Average Fuel
Economy, and Average Speed :
Shows the current distance traveled,
in either kilometers (km) or
miles (mi), since the trip odometer
was last reset.
The Average Fuel Economy display
shows the approximate average
liters per 100 kilometers (L/100 km)
or miles per gallon (mpg). This
number is calculated based on the
number of L/100 km (mpg) recorded
since the last time this menu item
was reset. This number reflects only
the approximate average fuel
economy that the vehicle has right
now, and will change as driving
conditions change.
The Average Speed display shows
the average speed of the vehicle in
kilometers per hour (km/h) or miles
per hour (mph). This average is calculated based on the various
vehicle speeds recorded since the
last reset of this value.
Press and hold
Vwhile this display
is active to reset the trip odometer,
the average fuel economy, and the
average speed. Or press
pand
select reset in the menu.
Fuel Range and Instantaneous
Fuel Economy : Shows the
approximate distance the vehicle
can be driven without refueling.
LOW will be displayed when the
vehicle is low on fuel. The fuel
range estimate is based on an
average of the vehicle's fuel
economy over recent driving history
and the amount of fuel remaining in
the fuel tank. It also shows if the
Active Fuel Management is active
and in V4 mode, or inactive and in
V8 mode. See Active Fuel
Management 0281.
The Instantaneous Fuel Economy
display shows the approximate
current fuel economy in either liters
per 100 kilometers (L/100 km) or
miles per gallon (mpg). This number
reflects only the approximate fuel economy that the vehicle has right
now and changes frequently as
driving conditions change.
Timer :
This display can be used as
a timer. To start the timer, press
V
while this display is active. The
display will show the amount of time
that has passed since the timer was
last reset. To stop the timer, press
V
briefly while this display is active
and the timer is running.
Press and hold
Vwhile this display
is active to reset the timer. Each of
these items can be reset individually
by pressing
pwhile this display is
active.
Oil Life : Shows an estimate of the
oil's remaining useful life.
If REMAINING OIL LIFE 99% is
displayed, that means 99% of the
current oil life remains.
When the remaining oil life is low,
the CHANGE ENGINE OIL SOON
message will appear on the display.
See Engine Oil Messages 0159.
The oil should be changed as soon
as possible. See Engine Oil0364.
In addition to the engine oil life

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
156 Instruments and Controls
system monitoring the oil life,
additional maintenance is
recommended in the Maintenance
Schedule. SeeMaintenance
Schedule 0455.
The Oil Life display must be reset
after each oil change. It will not
reset itself. Do not to reset the Oil
Life display at any time other than
when the oil has just been changed.
It cannot be reset accurately until
the next oil change. To reset the
engine oil life system, press and
hold
Vfor several seconds while
the Oil Life display is active. See
Engine Oil Life System 0367.
Tire Pressure : Shows the
approximate pressures of all four
tires. Tire pressure is displayed in
either kilopascal (kPa) or in pounds
per square inch (psi). If the pressure
is low, the value for that tire is
shown in amber.
See Tire Pressure Monitor System
0 410 andTire Pressure Monitor
Operation 0411. Best Fuel Economy :
Displays
average fuel economy, the best fuel
economy over the selected
distance, and a bar graph showing
instantaneous fuel economy.
Press
pto change the selected
distance. Press and hold
Vwhile
this display is active to reset the
best fuel economy and average fuel
economy. This display can also be
reset by selecting reset in the menu.
Top Consumers : Shows a list of
the features that are currently
impacting the fuel economy, in order
from highest to lowest. If a feature is
turned off, it will be removed from
the list.
Economy Trend : Shows history of
the Average Fuel Economy from the
last 50 km (30 mi). Each bar
represents about 5 km (3 mi) of
driving. During driving the bars will
shift to always reflect the most
recent distance on the right side.
Press and hold
Vto clear the graph
or press
pto reset through
the menu. ECO Index :
The bar graph
provides feedback on the efficiency
of current driving behavior. The
graph shows a value that is based
on current fuel consumption
compared to what is expected from
the vehicle with good and bad
driving habits. It also shows if the
Active Fuel Management is active
and in V4 mode, or inactive and in
V8 mode. See Active Fuel
Management 0281.
Engine Hours : Shows the total
number of hours the engine has run.
This display also shows the engine
idle hours.
Trailer Brake : On vehicles with the
Integrated Trailer Brake Control
(ITBC) system, the trailer brake
display appears in the DIC.
TRAILER GAIN shows the trailer
gain setting. This setting can be
adjusted from 0.0 to 10.0 with either
a trailer connected or disconnected.
OUTPUT shows the power output to
the trailer any time a trailer with
electric brakes is connected. Output
is displayed as a bar graph. Dashes
may appear in the OUTPUT display.