2017 GMC ACADIA Ac system

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
Keys, Doors, and Windows 53
open position. The sunshade can be
manually opened or closed when
the sunroof is closed.
If equipped, the rear sunshade can
only be opened or closed manually.
The sunroof cannot be opened or
closed if the vehicle has an
electrical failure.
Automatic Reversal System
The sunroof is equipped with an
automatic reversal system that is
only active when the sunroof is
being operated in express mode.
If an object is in the path of the
sunroof while it is express-closing,
the reversal system will detect the
object and stop. In the event of
closing difficulties like frost or other
conditions, it is possible to override
the reversal system. To override the
reversal system, close in manual
mode. To stop the movement,
release the switch.
Dirt and debris may collect on the
sunroof seal or in the track. This
could cause an issue with sunroof
operation or noise. It could also plug
the water drainage system.
Periodically open the sunroof and
remove any obstacles or loose
debris. Wipe the sunroof seal and
roof sealing area using a clean
cloth, mild soap, and water. Do not
remove grease from the sunroof.
If water is seen dripping into the
water drainage system, this is
normal.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
54 Seats and Restraints
Seats and
Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . . . 55
Front Seats
Seat Adjustment . . . . . . . . . . . . . . . 57
Power Seat Adjustment . . . . . . . . 57
Lumbar Adjustment . . . . . . . . . . . . 58
Reclining Seatbacks . . . . . . . . . . . 58
Memory Seats . . . . . . . . . . . . . . . . . 60
Heated and Ventilated FrontSeats . . . . . . . . . . . . . . . . . . . . . . . . . 61
Rear Seats
Rear Seats . . . . . . . . . . . . . . . . . . . . 63
Heated Rear Seats . . . . . . . . . . . . 66
Third Row Seats . . . . . . . . . . . . . . . 66
Safety Belts
Safety Belts . . . . . . . . . . . . . . . . . . . . 68
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . . . 69
Lap-Shoulder Belt . . . . . . . . . . . . . 70
Safety Belt Use During Pregnancy . . . . . . . . . . . . . . . . . . . . 73
Safety Belt Extender . . . . . . . . . . . 74
Safety System Check . . . . . . . . . . 74 Safety Belt Care . . . . . . . . . . . . . . . 74
Replacing Safety Belt System
Parts after a Crash . . . . . . . . . . . 74
Airbag System
Airbag System . . . . . . . . . . . . . . . . . 75
Where Are the Airbags? . . . . . . . 77
When Should an AirbagInflate? . . . . . . . . . . . . . . . . . . . . . . . 78
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . 79
How Does an Airbag Restrain? . . . . . . . . . . . . . . . . . . . . . 80
What Will You See after an Airbag Inflates? . . . . . . . . . . . . . . 80
Passenger Sensing System . . . 81
Servicing the Airbag-Equipped Vehicle . . . . . . . . . . . . . . . . . . . . . . . 85
Adding Equipment to the Airbag-Equipped Vehicle . . . . . 86
Airbag System Check . . . . . . . . . . 86
Replacing Airbag System Parts after a Crash . . . . . . . . . . . . . . . . . 87
Child Restraints
Older Children . . . . . . . . . . . . . . . . . 87
Infants and Young Children . . . . 89
Child Restraint Systems . . . . . . . 91
Where to Put the Restraint . . . . . 93
Lower Anchors and Tethers forChildren (LATCH System) . . . . 94 Replacing LATCH System
Parts After a Crash . . . . . . . . . 101
Securing Child Restraints (With the Safety Belt in the
Rear Seat) . . . . . . . . . . . . . . . . . . 102
Securing Child Restraints (With the Safety Belt in the
Front Seat) . . . . . . . . . . . . . . . . . . 104

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
58 Seats and Restraints
.Raise or lower the front part of
the seat cushion by moving the
front of the control up or down.
. Raise or lower the entire seat by
moving the rear of the control up
or down.
To adjust the seatback, see
Reclining Seatbacks 058.
To adjust the lumbar support, see
Lumbar Adjustment 058.
Some vehicles are equipped with a
feature that activates a vibration in
the driver seat to help the driver
avoid crashes. See Driver
Assistance Systems 0254.Lumbar Adjustment
Press and hold the control forward
to increase or rearward to decrease
support.
Reclining Seatbacks
{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)
Warning (Continued)
The shoulder belt will not be
against your body. Instead, it will
be in front of you. In a crash, you
could go into it, receiving neck or
other injuries.
The lap belt could go up over
your abdomen. The belt forces
would be there, not at your pelvic
bones. This could cause serious
internal injuries.
For proper protection when the
vehicle is in motion, have the
seatback upright. Then sit well
back in the seat and wear the
safety belt properly.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
Seats and Restraints 69
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 087 orInfants and Young
Children 089. 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.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
70 Seats and Restraints
Lap-Shoulder Belt
All seating positions in the vehicle
have a lap-shoulder belt.
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 081.
If the webbing locks in the latch
plate before it reaches the
buckle, tilt the latch plate flat to
unlock.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
Seats and Restraints 71
3. Push the latch plate into thebuckle until it clicks.
Pull up on the latch plate to
make sure it is secure. If the
belt is not long enough, see
Safety Belt Extender 074.
Position the release button on
the buckle so that the safety
belt could be quickly unbuckled
if necessary.
4. To make the lap part tight, pull up on the shoulder belt.
To unlatch the belt, push the button
on the buckle. The belt should
return to its stowed position.
Always stow the safety belt slowly.
If the safety belt webbing returns
quickly to the stowed position, the
retractor may lock and cannot be
pulled out. If this happens, pull the
safety belt straight out firmly to
unlock the webbing, and then
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
safety belt and the vehicle.
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 074.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
74 Seats and Restraints
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 protectyou 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. See
Safety Belt
Reminders 0130.
Keep safety belts clean and dry.
See Safety Belt Care 074.
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)

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
Seats and Restraints 75
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 0131.
Airbag System
The vehicle has the following
airbags:
.
A frontal airbag for the driver.
. A frontal airbag for the front
outboard passenger.
. A knee airbag for the driver.
. A front center airbag for the
driver and front outboard
passenger.
. A seat-mounted side impact
airbag for the driver.
. A seat-mounted side impact
airbag for the front outboard
passenger.
. A roof-rail airbag for the driver
and for the second and third row
passengers seated directly
behind the driver.
. A roof-rail airbag for the front
outboard passenger and the
second and third row
passengers seated directly
behind the front outboard
passenger. All vehicle airbags have the word
AIRBAG on the trim or on a label
near the deployment opening.
For frontal airbags, the word
AIRBAG is on the center of the
steering wheel for the driver and on
the instrument panel for the front
outboard passenger.
For knee airbags, the word AIRBAG
is on the lower part of the
instrument panel.
For the front center airbag, the word
AIRBAG is on the inboard side of
the driver seatback.
For seat-mounted side impact
airbags, the word AIRBAG is on the
side of the seat closest to the door.
For roof-rail airbags, the word
AIRBAG is on the ceiling or trim.
Airbags are designed to supplement
the protection provided by safety
belts. Even though today's airbags
are also designed to help reduce
the risk of injury from the force of an
inflating bag, all airbags must inflate
very quickly to do their job.