ac system GMC YUKON 2017 Service Manual
[x] Cancel search | Manufacturer: GMC, Model Year: 2017, Model line: YUKON, Model: GMC YUKON 2017Pages: 429, PDF Size: 5.79 MB
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GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 11/9/16
64 Seats and Restraints
Second Row Seats
The vehicle's second row seats
have head restraints in the outboard
seating positions that cannot be
adjusted.
The second row seat outboard head
restraints are not removable.
Third Row Seats
The third row seat head restraint
can be lowered to allow for better
visibility when the rear seat is
unoccupied.To lower the head restraint, press
the button located on the top of the
seatback and push the head
restraint down.
Return the lowered head restraint to
the upright position until it locks into
place. Push and pull on the head
restraint to make sure it is locked.
If you are installing a child restraint
in the third row seat, see
“Securing
a Child Restraint Designed for the
LATCH System” underLower
Anchors and Tethers for Children
(LATCH System) 0106.
Front Seats
Power Seat Adjustment
{Warning
You 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.
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Seats and Restraints 65
To adjust the seat:
.Move the seat forward or
rearward by sliding the control
forward or rearward.
. Raise or lower the front part of
the seat cushion by moving the
front of the control up or down.
. Raise or lower the seat by
moving the rear of the control up
or down.
To adjust the seatback, see
Reclining Seatbacks 065.
To adjust the lumbar support, see
Lumbar Adjustment 065.
Some vehicles are equipped with a
feature that activates a vibrating
pulse alert in the driver seat to help
the driver avoid crashes. See Driver
Assistance Systems 0253.Lumbar Adjustment
To adjust the lumbar support:
.
Press and hold the control
forward to increase or rearward
to decrease upper and lower
lumbar support at the same time.
. Press and hold the control up to
increase upper lumbar support
and decrease lower lumbar
support.
Press and hold the control down
to increase lower lumbar support
and decrease upper lumbar
support.
Reclining Seatbacks
To recline the seatback:
.Tilt the top of the control
rearward to recline.
. Tilt the top of the control forward
to raise.
{Warning
Sitting in a reclined position when
the vehicle is in motion can be
dangerous. Even when buckled
up, the safety belts cannot do
their job.
(Continued)
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Seats and Restraints 67
release SET; a beep will sound.
Then immediately press and hold 1,
2, or
B(Exit) on the driver door
until two beeps sound. To manually
recall these positions, press and
hold 1, 2, or
Buntil the saved
position is reached.
The vehicle identifies the current
driver ’s RKE transmitter number
(1–8).
See Remote Keyless Entry (RKE)
System Operation (Keyless Access)
0 34 orRemote Keyless Entry
(RKE) System Operation (Key
Access) 032. Only RKE
transmitters 1 and 2 can be used for
automatic memory recalls. A Driver
Information Center (DIC) welcome
message indicating the transmitter
number may display for the first few
ignition cycles following a
transmitter change. For Auto
Memory Recall to work properly,
save the positions to the memory
button (1 or 2) matching the RKE
transmitter number displayed in the
DIC welcome message. Carry the
linked RKE transmitter when
entering the vehicle. Vehicle Personalization Settings
.
To have the Auto Memory Recall
movement begin when the
vehicle is started, select the
Settings menu, then Vehicle,
then Comfort and Convenience,
and then Auto Memory Recall.
Select On or Off. See “Auto
Memory Recall” later in this
section.
. To have the Easy Exit Recall
movement begin when the
vehicle is started, select the
Settings menu, then Vehicle,
then Comfort and Convenience,
and then Easy Exit Options.
Select On or Off. See “Easy Exit
Recall” later in this section.
. See Vehicle Personalization
0 171 for additional setting
information.
Saving Memory Positions
To save preferred driving positions
1 and 2: 1. Turn the ignition on or to ACC/ ACCESSORY. A DIC welcome message may
be displayed indicating number
1 or 2 for memory recalls.
2. Adjust all available memory features to the desired driving
position.
3. Press and release SET; a beep will sound.
4. Immediately press and hold the 1 or 2 memory button matching
the above DIC welcome
message until two beeps
sound.
If too much time passes
between releasing SET and
pressing 1 or 2, the positions
will not be saved and two
beeps will not sound. Repeat
steps 3 and 4.
5. Repeat Steps 1–4 for a second driver using 1 or 2.
To save positions for
Band easy
exit features, repeat Steps 1–4
using
B. This stores the positions
for getting out of the vehicle.
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68 Seats and Restraints
Manually Recalling Memory
Positions
Press and hold 1, 2, or
Bto 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 (Keyless Access)
0 34 orRemote Keyless Entry
(RKE) System Operation (Key
Access) 032. 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 0171.
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
Bis used for all drivers. To turn
Easy Exit Recall on or off, see
"Vehicle Personalization Settings"
previously in this section and
Vehicle Personalization 0171.
If turned on, the positions saved to
Bare 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.
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Seats and Restraints 69
To 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
{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.
The buttons are on the center stack
below the climate control system. 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.
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Seats and Restraints 79
Q: If my vehicle has airbags, whyshould I have to wear safety
belts?
A: Airbags are supplemental
systems only. They work with
safety 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 safety belts.
How to Wear Safety Belts
Properly
This section is only for people of
adult size.
There are special things to know
about safety 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 099 orInfants and Young
Children 0101. 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 safety belts.
There are important things to know
about wearing a safety belt properly.
.
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.
{Warning
You can be seriously injured,
or even killed, by not wearing
your safety 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.
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80 Seats and Restraints
Lap-Shoulder Belt
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.
SeeLap Belt 085.
If you are using a rear seating
position with a detachable safety
belt, and the safety belt is not
attached, see Third Row Seats 076
for instructions on reconnecting the
safety belt to the mini-buckle.
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.
The lap-shoulder belt may lock
if you pull the belt across you
very quickly. If this happens, let
the belt go back slightly to
unlock it. Then pull the belt
across you more slowly.
If the shoulder portion of a
passenger belt is pulled out all
the way, the child restraint
locking feature may be
engaged. If this happens, let
the belt go back all the way
and start again. Engaging the child restraint
locking feature in the front
outboard seating position may
affect the passenger sensing
system. See
Passenger
Sensing System 093.
For front seating positions,
if the webbing locks in the latch
plate before it reaches the
buckle, tilt the latch plate flat to
unlock.
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82 Seats and Restraints
release it. If the webbing is still
locked in the retractor, see your
dealer.
Before a door is closed, be sure the
safety belt is out of the way. If a
door is slammed against a safety
belt, damage can occur to both the
belt and the vehicle.
Shoulder Belt Height Adjuster
The vehicle has a shoulder belt
height adjuster for the driver and
front outboard passenger positions.
Adjust the height so the shoulder
portion of the belt is on the shoulder
and not falling off of it. The belt
should be close to, but not
contacting, the neck. Improper
shoulder belt height adjustment
could reduce the effectiveness of
the safety belt in a crash. SeeHow
to Wear Safety Belts Properly 079.
Push down on the release button to
move the height adjuster to the
desired position.
Move the adjuster up by pushing up
on the shoulder belt guide.
After the adjuster is set to the
desired position, try to move it down
without pushing the release button
to make sure it has locked into
position.
Safety Belt Pretensioners
This vehicle has safety belt
pretensioners for front outboard
occupants. Although the safety belt
pretensioners cannot be seen, they
are part of the safety belt assembly. They can help tighten the safety
belts during the early stages of a
moderate to severe frontal, near
frontal, or rear crash if the threshold
conditions for pretensioner
activation are met. Safety belt
pretensioners can also help tighten
the safety belts in a side crash or a
rollover event.
Pretensioners work only once. If the
pretensioners activate in a crash,
the pretensioners and probably
other parts of the vehicle's safety
belt system will need to be replaced.
See
Replacing Safety Belt System
Parts after a Crash 086.
Do not sit on the outboard safety
belt while entering or exiting the
vehicle or at any time while sitting in
the seat. Sitting on the safety belt
can damage the webbing and
hardware.
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Seats and Restraints 85
Lap Belt
This section is only for the lap belt.
To learn how to wear a lap-shoulder
belt, seeLap-Shoulder Belt 080.
The vehicle may have a center
seating position with a lap safety
belt. The lap safety belt does not
have a retractor.
To make the belt longer, tilt the latch
plate and pull it along the belt.
Buckle, position, and release it the
same way as the lap part of a
lap-shoulder belt.
To make the belt shorter, pull its free
end as shown until the belt is snug.
If the belt is not long enough, see
Safety Belt Extender 085.
Make sure the release button on the
buckle is positioned so you would
be able to unbuckle the safety belt
quickly if necessary.
If you find that the latch plate will
not go fully into the buckle, see if
you are using the correct buckle. Be
sure that the latch plate clicks when
inserted into the buckle.
Safety Belt Extender
If the vehicle's safety belt will fasten
around you, you should use it.
But if a safety belt is not long
enough, your dealer will order you
an extender. When you go in to
order it, take the heaviest coat you
will wear, so the extender will be
long enough for you. To help avoid
personal injury, do not let someone
else use it, and use it only for the
seat it is made to fit. The extender
has been designed for adults. Never
use it for securing child restraints.
To wear it, attach it to the regular
safety belt. For more information,
see the instruction sheet that comes
with the extender.
Safety System Check
Check that the safety belt reminder,
safety belts, buckles, latch plates,
and retractors, are all working
properly. Look for any other loose or
damaged safety belt system parts
that might keep a safety belt system
from performing properly. See your
dealer to have it repaired. Torn or
frayed safety belts may not protect
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86 Seats and Restraints
you in a crash. They can rip apart
under impact forces. If a belt is torn
or frayed, have it replaced
immediately.
Make sure the safety belt reminder
light is working. SeeSafety Belt
Reminders 0142.
Keep safety belts clean and dry.
See Safety Belt Care 086.
Safety Belt Care
Keep belts clean and dry.
{Warning
Do not bleach or dye safety belt
webbing. It may severely weaken
the webbing. In a crash, they
might not be able to provide
adequate protection. Clean and
rinse safety belt webbing only
with mild soap and lukewarm
water. Allow the webbing to dry.
Safety belts should be properly
cared for and maintained. Safety belt hardware should be kept
dry and free of dust or debris. As
necessary exterior hard surfaces
and safety belt webbing may be
lightly cleaned with mild soap and
water. Ensure there is not excessive
dust or debris in the mechanism.
If dust or debris exists in the system
please see the dealer. Parts may
need to be replaced to ensure
proper functionality of the system.
Replacing Safety Belt
System Parts after a
Crash
{Warning
A crash can damage the safety
belt system in the vehicle.
A damaged safety belt system
may not properly protect the
person using it, resulting in
serious injury or even death in a
crash. To help make sure the
safety belt systems are working
properly after a crash, have them
(Continued)
Warning (Continued)
inspected and any necessary
replacements made as soon as
possible.
After a minor crash, replacement of
safety belts may not be necessary.
But the safety belt assemblies that
were used during any crash may
have been stressed or damaged.
See your dealer to have the safety
belt assemblies inspected or
replaced.
New parts and repairs may be
necessary even if the safety belt
system was not being used at the
time of the crash.
Have the safety belt pretensioners
checked if the vehicle has been in a
crash, or if the airbag readiness light
stays on after you start the vehicle
or while you are driving. See Airbag
Readiness Light 0143.