2019 GMC SIERRA DENALI child seat

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/15/18
14 In Brief
Seat Belts
Refer to the following sections for
important information on how to use
seat belts properly:
.
Seat Belts 0 79
.
How to Wear Seat Belts Properly
0 80
.
Lap-Shoulder Belt 0 82
.
Lower Anchors and Tethers for
Children (LATCH System) 0 106Passenger Sensing
System United States
Canada
The passenger sensing system
turns off the front outboard
passenger frontal airbag under
certain conditions. No other airbag
is affected by the passenger
sensing system. See Passenger
Sensing System 0 92 . The passenger airbag status
indicator will light on the overhead
console when the vehicle is started.
See Passenger Airbag Status
Indicator 0 148 .
Mirror Adjustment Using hood-mounted air deflectors
and add-on convex mirror
attachments could decrease mirror
performance.
Exterior Mirrors Manual Mirrors
If equipped, adjust manual mirrors
by moving them 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.
See Manual Mirrors 0 56 .

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/15/18
44 Keys, Doors, and Windows 2. Immediately press and hold
/until the turn signal lamps flash
or for at least four seconds.
When the vehicle starts, the
parking lamps will turn on. The
doors will be locked and the
climate control system may
come on.
The engine will continue to run
for 15 minutes. After
30 seconds, repeat
Steps 1 and 2 for a 15-minute
time extension.
Turn the ignition on to operate the
vehicle.
Extending Engine Run Time
The engine run time can be
extended by 15 minutes, for a total
of 30 minutes, if during the first
15 minutes Steps 1 and 2 are
repeated while the engine is still
running. An extension can be
requested 30 seconds after starting.
A maximum of two remote starts,
or a single start with an extension,
is allowed between ignition cycles. The vehicle's ignition must be
turned on and then back off to use
remote start again.
Canceling a Remote Start
To cancel a remote start, do one of
the following:
.
Press and hold
/ until the
parking lamps turn off.
.
Turn on the hazard warning
flashers.
.
Turn the ignition on and then off.
Door Locks
{ Warning
Unlocked doors can be
dangerous.
.
Passengers, especially
children, can easily open
the doors and fall out of a
moving vehicle. The doors
can be unlocked and
opened while the vehicle is
moving. The chance of
(Continued) Warning (Continued) being thrown out of the
vehicle in a crash is
increased if the doors are
not locked. So, all
passengers should wear
seat belts properly and the
doors should be locked
whenever the vehicle is
driven.
.
Young children who get into
unlocked vehicles may be
unable to get out. A child
can be overcome by
extreme heat and can suffer
permanent injuries or even
death from heat stroke.
Always lock the vehicle
whenever leaving it.
.
Outsiders can easily enter
through an unlocked door
when you slow down or stop
the vehicle. Locking the
doors can help prevent this
from happening.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/15/18
Keys, Doors, and Windows 47To open a rear door when the safety
lock is on:
1. Unlock the door by activating
the inside handle, by pressing
the power door unlock switch,
or by using the Remote
Keyless Entry (RKE)
transmitter.
2. Open the door from the
outside.
When the safety lock is enabled,
adults and older children will not be
able to open the rear door from the
inside. Cancel the safety locks to
enable the doors to open from the
inside.
To cancel the safety lock:
1. Unlock the door and open it
from the outside.
2. Move the lever up to unlock.
Do the same for the other door. Doors Tailgate Manual Tailgate
{ WarningIt is extremely dangerous to ride
on the tailgate, even when the
vehicle is operated at low speeds.
People riding on the tailgate can
easily lose their balance and fall
in response to vehicle
maneuvers. Falling from a moving
vehicle may result in serious
injuries or death. Do not allow
people to ride on the tailgate. Be
sure everyone in your vehicle is in
a seat and using a seat belt
properly.
Use the key to unlock the tailgate.
Open the tailgate by lifting up on its
handle while pulling the
tailgate down.
To shut the tailgate, firmly push it
upward until it latches. After closing the tailgate, pull it back
to be sure it is latched securely.
Some tailgates have an electric
latch. If the battery is disconnected
or has low voltage, the tailgate will
not open. The tailgate will resume
operation when the battery is
reconnected or recharged.
Power Release Tailgate
{ WarningMake sure there is no one in the
way of the power tailgate as it is
opening and closing, and keep
hands away from the tailgate
hinges when in use. You or others
could be injured if caught in the
path of the power tailgate or
tailgate hinges.
Caution
To avoid damage to the tailgate,
make sure the area behind the
tailgate is clear before opening it.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/15/18
Keys, Doors, and Windows 63The 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 the Remote Keyless Entry
(RKE) transmitter or 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 0 30 . The power windows work when the
ignition is on, in ACC/ACCESSORY,
or when Retained Accessory Power
(RAP) is active. See Retained
Accessory Power (RAP) 0 225 .
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. Window Lockout
With Power Folding Mirrors,
Without Similar
This feature stops the rear door
passenger window switches from
working except from the driver
position.
Press
2 to engage the rear
window lockout feature. The
indicator light is on when engaged.
Press
2 again to disengage.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/15/18
Seats and Restraints 67
Seats and
Restraints Head Restraints Head Restraints . . . . . . . . . . . . . . . 68
Front Seats Seat Adjustment . . . . . . . . . . . . . . . 69
Center Seat . . . . . . . . . . . . . . . . . . . . 70
Power Seat Adjustment . . . . . . . . 70
Lumbar Adjustment . . . . . . . . . . . . 71
Reclining Seatbacks . . . . . . . . . . . 71
Memory Seats . . . . . . . . . . . . . . . . . 73
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . 75
Rear Seats Rear Seats . . . . . . . . . . . . . . . . . . . . 77
Heated Rear Seats . . . . . . . . . . . . 78
Seat Belts Seat Belts . . . . . . . . . . . . . . . . . . . . . 79
How to Wear Seat Belts
Properly . . . . . . . . . . . . . . . . . . . . . . 80
Lap-Shoulder Belt . . . . . . . . . . . . . 82
Seat Belt Use During
Pregnancy . . . . . . . . . . . . . . . . . . . . 84
Seat Belt Extender . . . . . . . . . . . . . 84
Safety System Check . . . . . . . . . . 84 Seat Belt Care . . . . . . . . . . . . . . . . . 85
Replacing Seat Belt System
Parts after a Crash . . . . . . . . . . . 85
Airbag System Airbag System . . . . . . . . . . . . . . . . . 86
Where Are the Airbags? . . . . . . . 88
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . 89
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . 90
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 90
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . 91
Passenger Sensing System . . . 92
Servicing the Airbag-Equipped
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 96
Adding Equipment to the
Airbag-Equipped Vehicle . . . . . 97
Airbag System Check . . . . . . . . . . 98
Replacing Airbag System Parts
after a Crash . . . . . . . . . . . . . . . . . 98
Child Restraints Older Children . . . . . . . . . . . . . . . . . 99
Infants and Young Children . . . 100
Child Restraint Systems . . . . . . 103
Where to Put the Restraint . . . 104
Lower Anchors and Tethers for
Children (LATCH System) . . . 106 Replacing LATCH System
Parts After a Crash . . . . . . . . . . 117
Securing Child Restraints (With
the Seat Belt in the
Rear Seat) . . . . . . . . . . . . . . . . . . 117
Securing Child Restraints (In
the Center Front Seat) . . . . . . 120
Securing Child Restraints (With
the Seat Belt in the Front
Outboard Seat) . . . . . . . . . . . . . 121

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/15/18
Seats and Restraints 69Rear Head Restraints The vehicle ’ s rear seat has head
restraints in the outboard seating
positions that cannot be adjusted.
The head restraint can be folded
forward to allow for better visibility
when the rear seat is unoccupied.
To fold the head restraint, press the
button on the side of the head
restraint.
When an occupant is in the seat,
always return the head restraint to
the upright position until it locks into place. Push and pull on the head
restraint to make sure that it is
locked.
If you are installing a child restraint
in the rear seat, see Lower Anchors
and Tethers for Children (LATCH
System) 0 106 .
Center Headrest
The vehicle ’ s rear seat may be
equipped with a headrest in the
center seating position that cannot
be adjusted.
If you are installing a child restraint
in the rear seat, see Lower Anchors
and Tethers for Children (LATCH
System) 0 106 .Front Seats Seat Adjustment
{ WarningYou can lose control of the
vehicle if you try to adjust a driver
seat while the vehicle is moving.
Adjust the driver seat only when
the vehicle is not moving.
To adjust a manual seat:
1. Pull the handle at the front of
the seat.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/15/18
Seats and Restraints 77
Rear Seats Rear Seat Reminder 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.
The feature is active only once each
time the vehicle is turned on and off,
and will require reactivation by
opening and closing the second row
doors. There may be an alert even
when there is nothing in the rear
seat; for example, if a child entered the vehicle through the rear door
and left the vehicle without the
vehicle being shut off.
The feature can be turned on or off.
See Vehicle Personalization 0 167 .
Folding the Rear Seat Cushion Either side of the rear seat cushion
can be folded up for added cargo
space.
CautionFolding a rear seat with the seat
belts still fastened may cause
damage to the seat or the seat
belts. Always unbuckle the seat
belts and return them to their
normal stowed position before
folding a rear seat.
Make sure that nothing is on the
seat cushion. To fold the seat, slowly pull the seat
cushion up.
To return the seat to the normal
seating position, slowly pull the seat
cushion down.
{ Warning
A seat belt that is improperly
routed, not properly attached,
or twisted will not provide the
protection needed in a crash. The
person wearing the belt could be
seriously injured. After raising the
rear seatback, always check to be
(Continued)

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/15/18
80 Seats and Restraints Q: If my vehicle has airbags, why
should I have to wear seat
belts?
A: Airbags are supplemental
systems only. They work with
seat belts — not instead of them.
Whether or not an airbag is
provided, all occupants still have
to buckle up to get the most
protection.
Also, in nearly all states and in
all Canadian provinces, the law
requires wearing seat belts.
How to Wear Seat Belts
Properly Follow these rules for everyone's
protection.
There are additional things to know
about seat belts and children,
including smaller children and
infants. If a child will be riding in the
vehicle, see Older Children 0 99 or
Infants and Young Children 0 100 .
Review and follow the rules for
children in addition to the following
rules. It is very important for all occupants
to buckle up. Statistics show that
unbelted people are hurt more often
in crashes than those who are
wearing seat belts.
There are important things to know
about wearing a seat belt properly.
.
Sit up straight and always keep
your feet on the floor in front of
you (if possible).
.
Always use the correct buckle
for your seating position.
.
Wear the lap part of the belt low
and snug on the hips, just
touching the thighs. In a crash, this applies force to the strong
pelvic bones and you would be
less likely to slide under the lap
belt. If you slid under it, the belt
would apply force on your
abdomen. This could cause
serious or even fatal injuries.
.
Wear the shoulder belt over the
shoulder and across the chest.
These parts of the body are best
able to take belt restraining
forces. The shoulder belt locks if
there is a sudden stop or crash.
{ WarningYou can be seriously injured,
or even killed, by not wearing
your seat belt properly.