2018 GMC SIERRA DENALI Owners Manual

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
64 Seats and Restraints Save preferred memory feature
positions to both 1 and 2 if you are
the only driver.
Manually Recalling Memory
Positions
Press and hold 1, 2, or
B to recall
the previously stored memory
positions.
To stop manual recall movement,
release 1, 2, or
B . Recall can also
be stopped by pressing a power
seat, SET, power mirror control,
power steering wheel control,
or adjustable pedal control,
if memory equipped. The driver or
passenger side mirror must be
selected.
Auto Memory Recall
The vehicle identifies the number of
the current driver ’ s RKE transmitter
(1 – 8). See Remote Keyless Entry
(RKE) System Operation 0 37 . If the
RKE transmitter is 1 or 2, and Auto
Memory Recall is programmed on in
vehicle personalization, the
positions saved to the same
memory button number 1 or 2 are automatically recalled when the
ignition is turned on, or turned from
off to ACC/ACCESSORY. RKE
transmitters 3 – 8 will not provide
automatic memory recalls.
To turn Auto Memory Recall on or
off, see "Vehicle Personalization
Settings" previously in this section
and Vehicle Personalization 0 165 .
The transmission must be in
P (Park) to initiate Auto Memory
Recall. Auto Memory Recall will
complete if the vehicle is shifted out
of P (Park) prior to reaching the
stored memory position.
To stop Auto Memory Recall
movement, turn the ignition off or
press any of the following memory
controls:
.
Power seat
.
Memory SET, 1, 2, or
B.
Power mirror, with the driver or
passenger side mirror selected
.
Power steering wheel,
if equipped
.
Adjustable pedals, if equipped If the stored memory seat position
does not automatically recall or
recalls to the wrong positions, the
driver ’ s RKE transmitter number
(1 or 2) may not match the memory
button number that positions were
saved to. Try storing the position to
the other memory button or try the
other RKE transmitter.
Easy Exit Recall
Easy Exit Recall is not linked to an
RKE transmitter. The position stored
to
B is used for all drivers. To turn
Easy Exit Recall on or off, see
"Vehicle Personalization Settings"
previously in this section and
Vehicle Personalization 0 165 .
If turned on, the position saved to
B is automatically recalled 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.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Seats and Restraints 65To stop Easy Exit Recall movement,
press any of the following memory
controls:
.
Power seat
.
Memory SET, 1, 2, or
B.
Power mirror, with the driver or
passenger side mirror selected
.
Power steering wheel,
if equipped
.
Adjustable pedals, if equipped
Obstructions
If something has blocked the driver
seat and/or power steering wheel
while recalling a memory position,
the recall may stop. Remove the
obstruction and try the recall again.
If the memory position still does not
recall, see your dealer for service. Heated and Ventilated
Front Seats
{ WarningIf temperature change or pain to
the skin cannot be felt, the seat
heater may cause burns. To
reduce the risk of burns, 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
I to heat the driver or
passenger seatback only.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
66 Seats and Restraints Press
J to heat the driver or
passenger seat cushion and
seatback.
Press
C to 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.
The heated or ventilated seats will
not turn on during a remote start
unless they are enabled in the
vehicle personalization menu.
See Remote Vehicle Start 0 39 and
Vehicle Personalization 0 165 .Rear Seats Rear Seats (Double Cab
Full Bench) Rear Seat Reminder (Full
Bench Only) 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.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Seats and Restraints 67The 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 0 165 .
Folding the Rear Seat
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. To fold the seat:
1. Pull up on the front of the seat
cushion while pulling down on
the release strap loop under
the seat cushion.
2. Pull the seat cushion up until it
latches with the seatback.
3. Pull forward on the seat
cushion to make sure it is
locked in place. To unfold the seat:
1. Push the seat cushion
rearward while pulling the
release strap loop under the
seat cushion. Pull the seat
cushion down until it latches.
2. Pull up on the seat cushion to
make sure it is locked in place.
Make sure the seat belts are
not twisted or caught in the
seat cushion.
{ WarningA 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
sure that the seat belts are
properly routed and attached, and
are not twisted.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
68 Seats and Restraints
Rear Seats (Split Bench) Folding the Rear Seat Either side of the rear seat can be
folded 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.
Make sure the seat belts are not
twisted or caught in the seat
cushion. { WarningA 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
sure that the seat belts are
properly routed and attached, and
are not twisted.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Seats and Restraints 69
Seat Belts This section describes how to use
seat belts properly, and some things
not to do.
{ WarningDo not let anyone ride where a
seat belt cannot be worn properly.
In a crash, if you or your
passenger(s) are not wearing
seat belts, injuries can be much
worse than if you are wearing
seat belts. You can be seriously
injured or killed by hitting things
inside the vehicle harder or by
being ejected from the vehicle. In
addition, anyone who is not
buckled up can strike other
passengers in the vehicle.
It is extremely dangerous to ride
in a cargo area, inside or outside
of a vehicle. In a collision,
passengers riding in these areas
are more likely to be seriously
injured or killed. Do not allow
(Continued) Warning (Continued) passengers to ride in any area of
the vehicle that is not equipped
with seats and seat belts.
Always wear a seat belt, and
check that all passenger(s) are
restrained properly too.
This vehicle has indicators as a
reminder to buckle the seat belts.
See Seat Belt Reminders 0 146 .
Seat Belt Assurance System This vehicle may have the Seat Belt
Assurance System, which prevents
the vehicle from shifting out of
P (Park). A message displays in the
Driver Information Center (DIC)
indicating the shift lever is locked
when the brake pedal is applied and
the seat belts for either the driver or
front outboard passenger are not
buckled. The vehicle will not shift
out of P (Park). Buckle the seat
belts to unlock the shift lever. If the front passenger seat is unoccupied,
only the driver seat belt must be
buckled to unlock the shift lever.
This system may not allow the
vehicle to shift out of P (Park) if an
object — such as a briefcase,
handbag, grocery bag, laptop,
or other electronic device — is on
the front outboard passenger seat.
If this happens, remove the object
from the seat or buckle the
seat belt.
If the driver or front outboard
passenger unbuckles their seat belt
while driving, the seat belt reminder
chime and light(s) will come on. See
Seat Belt Reminders 0 146 .
The Seat Belt Assurance System
will time out 30 seconds after the
brake pedal is initially pressed.
A message displays in the DIC
indicating the shift lever is unlocked
allowing the vehicle to be shifted out
of P (Park). See “ Seat Belts ” and
“ Child Restraints ” in the Index for
information about the importance of
proper restraint use.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
70 Seats and Restraints This system may not function
properly if the airbag readiness light
is on. See Airbag Readiness Light
0 147 .
Why Seat Belts Work
When riding in a vehicle, you travel
as fast as the vehicle does. If the
vehicle stops suddenly, you keep
going until something stops you.
It could be the windshield, the
instrument panel, or the seat belts!
When you wear a seat belt, you and
the vehicle slow down together.
There is more time to stop because
you stop over a longer distance and, when worn properly, your strongest
bones take the forces from the seat
belts. That is why wearing seat belts
makes such good sense.
Questions and Answers About
Seat Belts Q: Will I be trapped in the vehicle
after a crash if I am wearing a
seat belt?
A: You could be — whether you are
wearing a seat belt or not. Your
chance of being conscious
during and after a crash, so you
can unbuckle and get out, is
much greater if you are belted.
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 This section is only for people of
adult size.
There are special things to know
about seat belts and children, and
there are different rules for smaller
children and infants. If a child will be
riding in the vehicle, see Older
Children 0 92 or Infants and Young
Children 0 94 . Follow those rules for
everyone's protection.
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.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Seats and Restraints 71
.
Sit up straight and always keep
your feet on the floor in front
of you.
.
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.
.
Never allow the lap or
shoulder belt to become
loose or twisted.
.
Never wear the shoulder
belt under both arms or
behind your back.
.
Never route the lap or
shoulder belt over an
armrest.
Lap-Shoulder Belt If the vehicle is a regular cab, then
all seating positions in the vehicle
have a lap-shoulder belt. If the
vehicle is a double or crew cab, then all seating positions in the
vehicle have a lap-shoulder belt
except for the center front
passenger position (if equipped),
which has a lap belt. See Lap Belt
0 75 .
The following instructions explain
how to wear a lap-shoulder belt
properly.
1. Adjust the seat, if the seat is
adjustable, so you can sit up
straight. To see how, see
“ Seats ” in the Index.
2. Pick up the latch plate and pull
the belt across you. Do not let
it get twisted.