mirror GMC SIERRA 1500 2015 User Guide

Black plate (13,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
Keys, Doors, and Windows 2-13
It is possible for the immobilizer
system to learn new or replacement
keys. Up to eight keys can be
programmed for the vehicle. To
program additional keys, seeKeys
on page 2-1. To program additional
transmitters, see Remote Keyless
Entry (RKE) System Operation on
page 2-3.
Do not leave the key or device that
disarms or deactivates the vehicle
theft system in the vehicle.
See your dealer to get a new key
blank cut exactly as the ignition key
that operates the system.Exterior Mirrors
Convex Mirrors
{Warning
A convex mirror can make things,
like other vehicles, look farther
away than they really are. If you
cut too sharply into the right lane,
you could hit a vehicle on the
right. Check the inside mirror or
glance over your shoulder before
changing lanes.
The passenger side mirror is convex
shaped. A convex mirror's surface is
curved so more can be seen from
the driver seat.
Manual Mirrors
If equipped, adjust manual mirrors
by moving the mirror up and down
or left to right to see a little of the
side of the vehicle and to have a
clear view behind the vehicle. Using hood-mounted air deflectors
and add-on convex mirror
attachments could decrease mirror
performance.
Trailer-Tow Mirrors
If equipped, adjust trailer-tow
mirrors for a clearer view of the
objects behind you. Manually pull
out the mirror head to extend it for
better visibility when towing a trailer.
The lower portion of the mirror is
convex. A convex mirror's surface is
curved to see more from the driver

Black plate (14,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
2-14 Keys, Doors, and Windows
seat. The convex mirror can be
adjusted manually to the driver
preferred position for better vision.
The mirror may have a turn signal
arrow that flashes in the direction of
the turn or lane change.
Power Mirrors
Base Power Mirrors
If equipped with power mirrors:
1. Press (1) or (2) to select the driver or passenger side mirror. 2. Press one of the four arrows on
the control pad to move the
mirror in the desired direction.
3. Adjust each outside mirror so that a little of the vehicle and the
area behind it can be seen.
4. Move the selector switch to the center position when not
adjusting either outside mirror.
Crew/Double Cab Premium
Shown, Other Models Similar
1. Press (1) or (2) to select the driver or passenger side mirror. 2. Press one of the four arrows on
the control pad while the
indicator light on button (1) or (2)
is illuminated, to move the mirror
in the desired direction.
3. Adjust each outside mirror so that a little of the vehicle and the
area behind it can be seen.
4. Press either (1) or (2) again to deselect the mirror.
If you do not deselect the mirror, the
feature will turn off after about
one minute.
If equipped, the mirrors may include
a memory function that works with
the memory seats. See Memory
Seats on page 3-6.

Black plate (15,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
Keys, Doors, and Windows 2-15
Folding Mirrors
Power Folding
If equipped with power folding
mirrors:
1. Press
g(2) to fold the mirrors
out to the driving position.
2. Press
g(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
on page 3-6. 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.

Black plate (16,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
2-16 Keys, Doors, and Windows
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.
Automatic Dimming
Mirror
If equipped, the driver outside mirror
automatically adjusts for the glare of
the headlamps from behind. This
feature comes on when the vehicle
is started.
Blind Spot Mirrors
If equipped, there is a small convex
mirror built into the upper and outer
corner of the driver outside rearview
mirror. It can show objects that may
be in the vehicle's blind zone.
Driving with the Blind Spot
Mirror
Actual Mirror View

Black plate (17,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
Keys, Doors, and Windows 2-17
1. When the approaching vehicle isa long distance away, the image
in the main mirror is small and
near the inboard edge of the
mirror.
2. As the vehicle gets closer, the image in the main mirror gets
larger and moves outboard.
3. As the vehicle enters the blind zone, the image transitions from
the main mirror to the blind spot
mirror.
4. When the vehicle is in the blind zone, the image only appears in
the blind spot mirror.
Using the Outside Mirror with
the Blind Spot Mirror
1. Set the main mirror so that theside of the vehicle can just be
seen and the blind spot mirror
has an unobstructed view.
2. When checking for traffic or before changing a lane, look at
the main driver/passenger side
mirror to observe traffic in the
adjacent lane, behind your vehicle. Check the blind spot
mirror for a vehicle in the blind
zone. Then, glance over your
shoulder to double check before
moving slowly into the
adjacent lane.
Reverse Tilt Mirrors
If equipped with the memory
package, the passenger and/or
driver mirror tilts to a preselected
position when the vehicle is in
R (Reverse). This feature allows the
driver to view the curb when parallel
parking. The mirror(s) return to the
original position when the vehicle is
shifted out of R (Reverse), the
ignition is turned off, or if the vehicle
is driven in (R) above a
predetermined speed.
Turn this feature on or off through
vehicle personalization. See
Vehicle
Personalization on page 5-45.
Interior Mirrors
Interior Rearview Mirrors
Adjust the rearview mirror for a clear
view of the area behind your
vehicle.
If equipped with OnStar, the vehicle
may have three control buttons at
the bottom of the mirror. See your
dealer for more information about
OnStar and how to subscribe to it.
See OnStar Overview on page 14-1.
Do not spray glass cleaner directly
on the mirror. Use a soft towel
dampened with water.
Manual Rearview Mirror
If equipped, push the tab forward for
daytime use and pull it rearward for
nighttime use to avoid glare from
the headlamps from behind.

Black plate (18,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
2-18 Keys, Doors, and Windows
Automatic Dimming
Rearview Mirror
If equipped, the mirror will
automatically reduce the glare of the
headlamps from behind. The
dimming feature comes on each
time the vehicle is started.
Windows
{Warning
Never leave a child, a helpless
adult, or a pet alone in a vehicle,
especially with the windows
closed in warm or hot weather.
They can be overcome by the
extreme heat and suffer
permanent injuries or even death
from heat stroke.
The vehicle aerodynamics are
designed to improve fuel economy
performance. This may result in a
pulsing sound when either rear
window is down and the front
windows are up. To reduce the
sound, open either a front window
or the sunroof, if equipped.
Manual Windows
If equipped, turn the hand crank on
each door to manually raise or lower
the manual windows.
Power Windows
{Warning
Children could be seriously
injured or killed if caught in the
path of a closing window. Never
leave keys in a vehicle with
children. When there are children
in the rear seat, use the window
lockout button to prevent
operation of the windows. See
Keys on page 2-1.

Black plate (6,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
3-6 Seats and Restraints
To adjust a manual seatback:
1. Lift the lever.The seatback will automatically
fold forward.
2. To recline, move the seatback rearward to the desired position,
then release the lever to lock the
seatback in place.
3. Push and pull on the seatback to make sure it is locked.
To return the seatback to the upright
position:
1. Lift the lever fully without applying pressure to the
seatback, and the seatback will
return to the upright position.
2. Push and pull on the seatback to make sure it is locked.Power Reclining Seatbacks
To recline a power seatback,
if equipped:
.Tilt the top of the control
rearward to recline.
.Tilt the top of the control forward
to raise.
Memory Seats
Crew/Double Cab Shown, Other
Models Similar
If memory equipped, the SET, "1,"
"2," and
B(Exit) buttons on the
driver door are used to manually
save and recall memory settings for
the driver seat, outside mirrors, and
adjustable pedals (if equipped).

Black plate (7,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
Seats and Restraints 3-7
Storing Memory Positions
To save positions to the“1”and “2”
buttons:
1. Adjust the driver seat, outside mirrors, and adjustable pedals (if
equipped) to the desired driving
positions.
2. Press and release SET, then immediately press and hold “1”
until a beep sounds.
3. Repeat Steps 1 and 2 for a second driver using “2.”
To save positions to the
B(Exit)
button and easy exit features:
1. Adjust the driver seat, adjustable pedals (if equipped), and the
outside mirrors on some vehicles
to the desired positions for
getting out of the vehicle.
2. Press and release SET, then immediately press and hold
B
until a beep sounds. Manually Recalling Memory
Positions
If the vehicle is OFF or not in
P (Park), press and hold "1," "2," or
Bto manually recall the previously
stored memory positions. Releasing
"1,” "2," or
Bbefore the stored
positions are reached stops the
recall.
If the vehicle is ON and in P (Park),
press and release “1,” “2,”or
Bto
manually recall the previously
stored memory positions. Placing
the ignition in OFF/LOCK before the
stored positions are reached stops
the recall.
If something has blocked the driver
seat and/or adjustable pedals 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 pressing
the appropriate memory button. If the memory position is still not
recalling, see your dealer for
service.
Automatically Recalling Memory
Positions (Auto Memory Recall)
The Auto (Automatic) Memory
Recall feature automatically recalls
the current driver
’s previously stored
“1” or“2” position when entering the
vehicle.
If the Auto Memory Recall feature is
enabled in the vehicle
personalization menu, memory “1”
or “2” positions are recalled in the
following ways:
.PressKon the RKE transmitter
and open the driver door.
.PressKon the RKE transmitter
when the driver door is
already open.
See Vehicle Personalization on
page 5-45.

Black plate (8,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
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 (39,1)GMC Sierra Owner Manual (GMNA Localizing-U.S/Canada/Mexico-
7299746) - 2015 - crc - 11/11/13
Instruments and Controls 5-39
Key and Lock Messages
REPLACE BATTERY IN
REMOTE KEY
This message displays if a Remote
Keyless Entry (RKE) transmitter
battery is low. The battery needs to
be replaced in the transmitter. See
“Battery Replacement”under
Remote Keyless Entry (RKE)
System Operation on page 2-3.
Lamp Messages
TURN SIGNAL ON
This message displays and a chime
sounds if a turn signal is left on for
1.2 km (0.75 mi). Move the turn
signal lever to the off position.
Object Detection System
Messages
FORWARD COLLISION
ALERT OFF
This message displays when the
Forward Collision Alert has been
turned off.
FRONT CAMERA BLOCKED
CLEAN WINDSHIELD
This message displays when the
camera is blocked. Cleaning the
outside of the windshield behind the
rearview mirror may correct the
issue. The Lane Departure Warning
(LDW) system and Forward
Collision Alert (FCA) will not
operate.
LANE DEPARTURE WARNING
UNAVAILABLE
This message displays when
attempting to activate the Lane
Departure Warning (LDW) system when it is temporarily unavailable.
The LDW system does not need
service.
This message could be due to the
camera being blocked. Cleaning the
outside of the windshield behind the
rearview mirror may correct the
issue.
PARK ASSIST OFF
This message displays when the
Parking Assist system has been
turned off or when there is a
temporary condition causing the
system to be disabled.
SERVICE FRONT CAMERA
If this message remains on after
continued driving, the vehicle needs
service. Do not use the Lane
Departure Warning (LDW) and
Forward Collision Alert (FCA)
features. Take the vehicle to your
dealer.