tow GMC ACADIA 2008 Owner's Manual

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
..............................................1-11
Safety Belts
.............................................1-16
Child Restraints
.......................................1-36
Airbag System
.........................................1-61
Restraint System Check
............................1-77
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
......................................2-10
Windows
.................................................2-18
Theft-Deterrent Systems............................2-21
Starting and Operating Your Vehicle
...........2-25
Mirrors
....................................................2-40
Object Detection Systems
..........................2-45
OnStar
®System
......................................2-47
Universal Home Remote System
................2-50
Storage Areas
.........................................2-55
Sunroof
..................................................2-60
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-26
Warning Lights, Gages, and Indicators
........3-39
Driver Information Center (DIC)
..................3-57
Audio System(s)
.......................................3-84Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-26
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-6
Checking Things Under the Hood
...............5-12
All-Wheel Drive
........................................5-43
Headlamp Aiming
.....................................5-45
Bulb Replacement
....................................5-45
Windshield Wiper Blade Replacement
.........5-47
Tires
......................................................5-48
Appearance Care
.....................................5-89
Vehicle Identication
.................................5-98
Electrical System
......................................5-99
Capacities and Specications
...................5-107
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-13
Vehicle Data Recording and Privacy
...........7-15
Index................................................................ 1
2008 GMC Acadia Owner ManualM

Rear Seats
Rear Seat Operation
A. Seat Adjustment Handle.
B. Reclining Seatback Strap.
C. Sliding Seat Lever.
Entering and Exiting the Third Row
{CAUTION:
Using the third row seating position while the
second row is folded, or folded and tumbled,
could cause injury in a sudden stop or crash.
Be sure to return the seat to the passenger
seating position. Push and pull on the seat to
make sure it is locked into place.
Notice:Folding a rear seat with the safety belts
still fastened may cause damage to the seat or the
safety belts. Always unbuckle the safety belts
and return them to their normal stowed position
before folding a rear seat.
1-11

To access the third row:
1. Remove objects on the oor in front of or on the
second row seat, or in the seat tracks on the
oor.
2. Move the front center console armrest completely
forward. SeeCenter Console Storage on page 2-56
3. Place folding armrests in the upright position.
4. The safety belt must be unfastened and in the
stowed position.
5. Pull the sliding seat lever (C) forward and move the
seatback forward. The seat cushion will fold, and
the entire seat will slide forward.Returning the Seat to the Seating
Position
To return the second row seat to its normal seating
position:
1. Remove objects on the oor behind the second row
seat, or in the seat tracks on the oor.
2. Pull the seatback rearward until it is locked in place.
3. Slide the seat rearward by pushing on the
seatback until it is locked into place.
4. Push down on the rear of the seat cushion until it is
locked in place.
5. Push and pull on the seatback and seat cushion to
make sure they are locked in place
6. Check that the safety belt is not under the seat
cushion.
1-12

Reclining the Seatbacks
To recline the seatback:
1. Leaning forward in the seat, pull the reclining
seatback strap (B).
2. Move the seatback to the desired position, then
release the strap to lock the seatback in place.
3. Push and pull on the seatback to make sure it is
locked.
Folding the Rear Seat
To fold the second row seats:
1. Remove anything on or under the seat.
2. Place the armrest in the upright position, and
unfasten the safety belt.
3. Pull forward on the reclining seatback strap (B) and
push down on the seatback.
4. If the headrest hits the front seat, slide the second
row seat rearward.
To return the seatback to the seating position, lift the
upper corner of the seatback and push it rearward until
it locks into place. Push and pull on the seatback to
make sure it is locked.
Adjusting the Seats
To adjust the second row seats, pull outward on the seat
adjustment handle (A). Slide the seat forward or rearward
to the desired position. Release the handle and push and
pull on the seat to make sure it is locked.
Third Row Seats
{CAUTION:
Using the third row seating position while the
second row is folded, or pushed forward in the
entry position, could cause injury in a sudden
stop or crash. Be sure to return the seat to the
passenger seating position. Push and pull on
the seat to make sure it is locked into place.
The third row seats can be folded forward or removed.
Notice:Folding a rear seat with the safety belts
still fastened may cause damage to the seat or the
safety belts. Always unbuckle the safety belts
and return them to their normal stowed position
before folding a rear seat.
1-13

To fold the seatback:
1. Remove anything on or under the seat.
2. Disconnect the rear safety belt mini-latch, using a
key in the slot on the mini-buckle, let the belt
retract into the headliner. Stow the mini-latch in the
holder located in the headliner.3. Pull up on the release
lever located on the
back of the seat.
The headrest moves
forward automatically.
4. Push the seatback forward to lay at.
To return the seatback to the seating position:
1. Raise the seatback into place by using the pullstrap
from the rear of the vehicle, or by pushing it into
place from inside the vehicle.
2. The headrest must be locked into place before
sitting in the seat.
1-14

{CAUTION:
If the seatback is not locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
push and pull on the seatback to be sure it is
locked.
3. Push and pull on the seatback to make sure it is
locked in place.
{CAUTION:
A safety 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 safety belts are properly routed
and attached, and are not twisted.
4. Reconnect the center safety belt mini-latch to the
mini-buckle. Do not let it twist.
5. Pull on the safety belt to be sure the mini-latch is
secure.
Removing the Third Row Seats
1. Remove the cargo management system, if it is in
the vehicle. SeeCargo Management System on
page 2-59.
2. Remove anything on or under the seat.
Notice:Folding a rear seat with the safety belts
still fastened may cause damage to the seat or the
safety belts. Always unbuckle the safety belts
and return them to their normal stowed position
before folding a rear seat.
3. Fold the seatback down. See “Folding the Seatback”
earlier in this section.
4. Remove the rear bolts located on the oor on each
side of the seat.
5. Remove the seat by tilting it slightly upward, and
then pulling it out of the rear of the vehicle in one
motion.
6. Put the bolts back into the holes on the oor so
they do not get misplaced.
1-15

{CAUTION:
Children can be seriously injured or strangled
if a shoulder belt is wrapped around their neck
and the safety belt continues to tighten.
Secure any unused safety belts behind the
child restraint so children cannot reach them.
Pull the shoulder belt all the way out of the
retractor to set the lock, if your vehicle has
one, after the child restraint has been installed.
Be sure to follow the instructions of the child
restraint manufacturer.
Notice:Contact between the child restraint LATCH
attachment parts and the vehicle’s safety belt
assembly may cause damage to these parts. Make
sure when securing unused safety belts behind
the child restraint that there is no contact between
the child restraint LATCH attachment parts and
the vehicle’s safety belt assembly.Folding an empty rear seat with the safety belts
secured may cause damage to the safety belt or the
seat. When removing the child restraint, always
remember to return the safety belts to their normal,
stowed position before folding the rear seat.
1. Attach and tighten the lower attachments to the
lower anchors. If the child restraint does not have
lower attachments or the desired seating position
does not have lower anchors, secure the child
restraint with the top tether and the safety belts.
Refer to your child restraint manufacturer
instructions and the instructions in this manual.
1.1. Find the lower anchors for the desired
seating position.
1.2. Recline the seatback to the full reclined
position.
Make sure the second row bench seatbacks
are aligned at the same angle before
placing the child restraint on the seat. Make
sure the third row bench seatbacks are
both upright before placing the child restraint
on the seat.
1.3. Put the child restraint on the seat.
1.4. Attach and tighten the lower attachments on
the child restraint to the lower anchors.
1-53

But airbags would not help in many types of collisions,
primarily because the occupant’s motion is not
toward those airbags. SeeWhen Should an Airbag
Inflate? on page 1-67for more information.
Airbags should never be regarded as anything more
than a supplement to safety belts.
What Will You See After an Airbag
Inates?
After the frontal airbags and seat-mounted side impact
airbags inate, they quickly deate, so quickly that
some people may not even realize an airbag inated.
Roof-rail airbags may still be at least partially inated for
some time after they deploy. Some components of
the airbag module may be hot for several minutes. For
location of the airbag modules, seeWhat Makes an
Airbag Inflate? on page 1-68.
The parts of the airbag that come into contact with you
may be warm, but not too hot to touch. There may
be some smoke and dust coming from the vents in the
deated airbags. Airbag ination does not prevent
the driver from seeing out of the windshield or being
able to steer the vehicle, nor does it prevent people from
leaving the vehicle.
{CAUTION:
When an airbag inates, there may be dust in
the air. This dust could cause breathing
problems for people with a history of asthma
or other breathing trouble. To avoid this,
everyone in the vehicle should get out as soon
as it is safe to do so. If you have breathing
problems but cannot get out of the vehicle
after an airbag inates, then get fresh air by
opening a window or a door. If you experience
breathing problems following an airbag
deployment, you should seek medical
attention.
Your vehicle has a feature that may automatically
unlock the doors, turn the interior lamps on, and turn
the hazard warning ashers on when the airbags inate.
You can lock the doors, turn the interior lamps off,
and turn the hazard warning ashers off by using the
controls for those features.
1-69

{CAUTION:
Stowing of articles under the passenger’s seat
or between the passenger’s seat cushion and
seatback may interfere with the proper
operation of the passenger sensing system.
Servicing Your Airbag-Equipped
Vehicle
Airbags affect how your vehicle should be serviced.
There are parts of the airbag system in several places
around your vehicle. Your dealer/retailer and the service
manual have information about servicing your vehicle
and the airbag system. To purchase a service manual,
seeService Publications Ordering Information on
page 7-14.
{CAUTION:
For up to 10 seconds after the ignition is
turned off and the battery is disconnected, an
airbag can still inate during improper service.
You can be injured if you are close to an
airbag when it inates. Avoid yellow
connectors. They are probably part of the
airbag system. Be sure to follow proper
service procedures, and make sure the person
performing work for you is qualied to do so.
1-75

Keys...............................................................2-3
Remote Keyless Entry (RKE) System................2-4
Remote Keyless Entry (RKE) System
Operation...................................................2-5
Remote Vehicle Start......................................2-7
Doors and Locks............................................2-10
Door Locks..................................................2-10
Power Door Locks........................................2-11
Delayed Locking...........................................2-11
Programmable Automatic Door Locks..............2-11
Rear Door Security Locks..............................2-11
Lockout Protection........................................2-12
Liftgate........................................................2-13
Power Liftgate..............................................2-14
Windows........................................................2-18
Power Windows............................................2-19
Sun Visors...................................................2-21
Theft-Deterrent Systems..................................2-21
Content Theft-Deterrent.................................2-21
PASS-Key
®III+............................................2-23
PASS-Key®III+ Operation..............................2-23
Starting and Operating Your Vehicle................2-25
New Vehicle Break-In....................................2-25
Ignition Positions..........................................2-26Retained Accessory Power (RAP)...................2-27
Starting the Engine.......................................2-27
Engine Coolant Heater..................................2-29
Automatic Transmission Operation...................2-30
Tow/Haul Mode............................................2-34
Parking Brake..............................................2-35
Shifting Into PARK (P)...................................2-36
Shifting Out of PARK (P)...............................2-37
Parking Over Things That Burn.......................2-38
Engine Exhaust............................................2-38
Running the Engine While Parked...................2-39
Mirrors...........................................................2-40
Manual Rearview Mirror with OnStar
®..............2-40
Automatic Dimming Rearview Mirror with
OnStar
®and Compass...............................2-40
Outside Power Mirrors...................................2-42
Outside Power Foldaway Mirrors.....................2-43
Outside Convex Mirror...................................2-44
Outside Heated Mirrors..................................2-44
Object Detection Systems...............................2-45
Ultrasonic Rear Parking
Assist (URPA)...........................................2-45
Rear Vision Camera......................................2-47
OnStar
®System.............................................2-47
Section 2 Features and Controls
2-1