fuel GMC ACADIA 2009 Owner's Guide

Driving Your
Vehicle
Your Driving, the Road,
and the Vehicle
Driving for Better Fuel
Economy...........................4-1
Defensive Driving................4-2
Drunk Driving.....................4-2
Control of a Vehicle............4-3
Braking...............................4-3
Antilock Brake
System (ABS)...................4-4
Braking in Emergencies......4-5
StabiliTrak®System............4-5
All-Wheel Drive (AWD)
System.............................4-7
Steering..............................4-8
Off-Road Recovery.............4-9
Passing..............................4-9
Loss of Control...................4-9
Driving at Night.................4-10
Driving in Rain and on
Wet Roads......................4-11
Before Leaving on a
Long Trip........................4-12
Highway Hypnosis.............4-12
Hill and Mountain Roads. . .4-12
Winter Driving...................4-13
If Your Vehicle is Stuck
in Sand, Mud, Ice,
or Snow
..........................4-15
Rocking Your Vehicle to
Get It Out.......................4-15
Loading the Vehicle..........4-16
Towing
Towing Your Vehicle.........4-20
Recreational Vehicle
Towing............................4-21
Towing a Trailer................4-24
Your Driving, the
Road, and the Vehicle
Driving for Better Fuel
Economy
Driving habits can affect fuel
mileage. Here are some driving
tips to get the best fuel economy
possible.
Avoid fast starts and accelerate
smoothly.
Brake gradually and avoid
abrupt stops.
Avoid idling the engine for long
periods of time.
When road and weather
conditions are appropriate, use
cruise control, if equipped.
Always follow posted speed limits
or drive more slowly when
conditions require.
Driving Your Vehicle 4-1

Before Leaving on a
Long Trip
To prepare your vehicle for a long
trip, consider having it serviced
by your dealer/retailer before
departing.
Things to check on your own
include:
Windshield Washer Fluid:
Reservoir full? Windows
clean — inside and outside?
Wiper Blades:In good shape?
Fuel, Engine Oil, Other Fluids:All
levels checked?
Lamps:Do they all work and are
lenses clean?
Tires:Are treads good? Are tires
inated to recommended
pressure?
Weather and Maps:Safe to
travel? Have up-to-date maps?
Highway Hypnosis
Always be alert and pay attention
to your surroundings while driving.
If you become tired or sleepy,
nd a safe place to park your
vehicle and rest.
Other driving tips include:
Keep the vehicle well ventilated.
Keep interior temperature cool.
Keep your eyes moving — scan
the road ahead and to the sides.
Check the rearview mirror and
vehicle instruments often.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on at or rolling terrain. Tips for
driving in these conditions include:
Keep the vehicle serviced
and in good shape.
Check all uid levels and brakes,
tires, cooling system, and
transmission.
Going down steep or long hills,
shift to a lower gear.
{CAUTION
If you do not shift down, the
brakes could get so hot that they
would not work well. You would
then have poor braking or even
none going down a hill. You could
crash. Shift down to let the engine
assist the brakes on a steep
downhill slope.
4-12 Driving Your Vehicle

To save fuel, run the engine for only
short periods as needed to warm the
vehicle and then shut the engine off
and close the window most of the
way to save heat. Repeat this until
help arrives but only when you feel
really uncomfortable from the cold.
Moving about to keep warm also
helps.
If it takes some time for help to
arrive, now and then when you run
the engine, push the accelerator
pedal slightly so the engine runs
faster than the idle speed. This
keeps the battery charged to restart
the vehicle and to signal for help with
the headlamps. Do this as little as
possible to save fuel.
If Your Vehicle is
Stuck in Sand, Mud, Ice,
or Snow
Slowly and cautiously spin the
wheels to free the vehicle when
stuck in sand, mud, ice, or snow.
SeeRocking Your Vehicle to Get It
Out on page 4-15.If the vehicle has a traction system,
it can often help to free a stuck
vehicle. Refer to the vehicle’s
traction system in the Index. If stuck
too severely for the traction
system to free the vehicle, turn the
traction system off and use the
rocking method.
{CAUTION
If you let your vehicle’s tires spin
at high speed, they can explode,
and you or others could be
injured. The vehicle can overheat,
causing an engine compartment
re or other damage. Spin the
wheels as little as possible and
avoid going above 35 mph
(55 km/h) as shown on the
speedometer.
For information about using tire
chains on the vehicle, seeTire
Chains on page 5-54.
Rocking Your Vehicle to
Get It Out
Turn the steering wheel left and
right to clear the area around
the front wheels. Turn off any
traction or stability system. Shift
back and forth between R (Reverse)
and a forward gear, spinning the
wheels as little as possible. To
prevent transmission wear, wait until
the wheels stop spinning before
shifting gears. Release the
accelerator pedal while shifting, and
press lightly on the accelerator
pedal when the transmission is in
gear. Slowly spinning the wheels in
the forward and reverse directions
causes a rocking motion that
could free the vehicle. If that does
not get the vehicle out after a
few tries, it might need to be towed
out. If the vehicle does need to
be towed out, seeTowing Your
Vehicle on page 4-20.
Driving Your Vehicle 4-15

The combined weight of the
driver, passengers, and cargo
should never exceed your
vehicle’s capacity weight.
Certication/Tire Label
A vehicle specic Certication/
Tire label is attached to the rear
edge of the driver’s door.The label shows the gross
weight capacity of your vehicle.
This is called the Gross
Vehicle Weight Rating (GVWR).
The GVWR includes the
weight of the vehicle, all
occupants, fuel, and cargo.
The Certication/Tire label also
tells you the maximum weights
for the front and rear axles, called
the Gross Axle Weight Rating
(GAWR). To nd out the actual
loads on your front and rear
axles, you need to go to a weigh
station and weigh your vehicle.
Your dealer/retailer can help you
with this. Be sure to spread out
your load equally on both sides of
the centerline.Never exceed the GVWR for
your vehicle or the GAWR
for either the front or rear axle.
{CAUTION
Do not load the vehicle any
heavier than the Gross Vehicle
Weight Rating (GVWR), or
either the maximum front or
rear Gross Axle Weight Rating
(GAWR). If you do, parts on
the vehicle can break, and it
can change the way your
vehicle handles. These could
cause you to lose control and
crash. Also, overloading can
shorten the life of the vehicle.
Notice
:Overloading your
vehicle may cause damage.
Repairs would not be covered
by your warranty. Do not
overload your vehicle.
Label Example
Driving Your Vehicle 4-19

Recreational Vehicle
Towing
Recreational vehicle towing means
towing the vehicle behind another
vehicle – such as behind a
motorhome. The two most common
types of recreational vehicle towing
are known as “dinghy towing” (towing
the vehicle with all four wheels on the
ground) and “dolly towing” (towing
the vehicle with two wheels on the
ground and two wheels up on a
device known as a “dolly”).
Here are some important things to
consider before recreational
vehicle towing:
What is the towing capacity of the
towing vehicle? Be sure to read
the tow vehicle manufacturer’s
recommendations.
What is the distance that will be
travelled? Some vehicles have
restrictions on how far and how
long they can tow.
Is the proper towing equipment
going to be used? See your
dealer/retailer or trailering
professional for additional advice
and equipment recommendations.
Is the vehicle ready to be towed?
Just as preparing the vehicle for a
long trip, make sure the vehicle is
prepared to be towed. SeeBefore
Leaving on a Long Trip on
page 4-12.
Dinghy Towing
If the vehicle is front-wheel-drive, it
can be dinghy towed from the front.These vehicles may also be towed
by putting the front wheels on a dolly.
See “Dolly Towing” later in this
section.
If the vehicle is all-wheel-drive, it can
be dinghy towed from the front.
These vehicles can also be towed by
placing them on a platform trailer
with all four wheels off of the ground.
These vehicles cannot be towed
using a dolly.
For vehicles being dinghy towed, the
vehicle should be run at the
beginning of each day and at each
RV fuel stop for about ve minutes.
This will ensure proper lubrication of
transmission components. Re-install
the fuse to start the vehicle.
To tow the vehicle from the front
with all four wheels on the ground:
1. Position the vehicle to tow
and then secure it to the towing
vehicle.
2. Shift the transmission to P (Park)
and turn the ignition to
LOCK/OFF.
Driving Your Vehicle 4-21

Towing a Trailer
{CAUTION
The driver can lose control when
pulling a trailer if the correct
equipment is not used or the
vehicle is not driven properly.
For example, if the trailer is too
heavy, the brakes may not work
well — or even at all. The driver
and passengers could be
seriously injured. The vehicle may
also be damaged; the resulting
repairs would not be covered by
the vehicle warranty. Pull a trailer
only if all the steps in this section
have been followed. Ask your
dealer/retailer for advice and
information about towing a trailer
with the vehicle.
To identify the trailering capacity of
the vehicle, read the information
in “Weight of the Trailer” that
appears later in this section.Trailering is different than just
driving the vehicle by itself.
Trailering means changes in
handling, acceleration, braking,
durability and fuel economy.
Successful, safe trailering takes
correct equipment, and it has to be
used properly.
The following information has many
time-tested, important trailering
tips and safety rules. Many of these
are important for the safety of the
driver and the passengers. So
please read this section carefully
before pulling a trailer.
Load-pulling components such as
the engine, transmission, rear
axle, wheel assemblies and tires are
forced to work harder against the
drag of the added weight. The
engine is required to operate
at relatively higher speeds and
under greater loads, generating
extra heat. What’s more, the trailer
adds considerably to wind
resistance, increasing the pulling
requirements.
Pulling A Trailer
Here are some important points:
There are many different
laws, including speed limit
restrictions, having to do with
trailering. Make sure the rig will
be legal, not only where you
live but also where you will be
driving. A good source for
this information can be state or
provincial police.
Consider using a sway control.
See “Hitches” later in this section.
Do not tow a trailer at all during
the rst 500 miles (800 km) the
new vehicle is driven. The engine,
axle or other parts could be
damaged.
Then, during the rst 500 miles
(800 km) that a trailer is towed, do
not drive over 50 mph (80 km/h)
and do not make starts at full
throttle. This helps the engine and
other parts of the vehicle wear in
at the heavier loads.
4-24 Driving Your Vehicle

Tow/Haul Mode
Tow/Haul is a feature that assists
when pulling a heavy trailer or
a large or heavy load. The purpose
of the Tow/Haul mode is to:
Reduce the frequency and
improve the predictability of
transmission shifts when pulling
a heavy trailer or a large or
heavy load.
Provide the same solid shift feel
when pulling a heavy trailer or a
large or heavy load as when
the vehicle is unloaded.
Improve control of vehicle speed
while requiring less throttle pedal
activity when pulling a heavy
trailer or a large or heavy load.
Increase the charging system
voltage to assist in recharging
a battery installed in a trailer.Press this button located on the
console to turn on and turn off the
Tow/Haul mode.
The Tow/Haul light on the
instrument panel will come on to
indicate that Tow/Haul mode
has been selected.
Tow/Haul may be turned off by
pressing the button again, at which
time the indicator light on the
instrument panel will turn off. The
vehicle will automatically turn
off Tow/Haul every time it is started.
Tow/Haul is designed to be most
effective when the vehicle and
trailer combined weight is at
least 75 percent of the vehicle’s
Gross Combined Weight Rating
(GCWR). See Weight of the Trailerearlier in this section. Tow/Haul is
most useful under the following
driving conditions:
When pulling a heavy trailer or a
large or heavy load through
rolling terrain.
When pulling a heavy trailer or a
large or heavy load in stop and
go traffic.
When pulling a heavy trailer or a
large or heavy load in busy
parking lots where improved low
speed control of the vehicle is
desired.
Operating the vehicle in Tow/Haul
when lightly loaded or with no trailer
at all will not cause damage.
However, there is no benet to the
selection of Tow/Haul when the
vehicle is unloaded. Such a selection
when unloaded may result in
unpleasant engine and transmission
driving characteristics and reduced
fuel economy. Tow/Haul is
recommended only when pulling a
heavy trailer or a large or heavy load.
Driving Your Vehicle 4-31

Service and
Appearance Care
Service
Service...............................5-3
Accessories and
Modications.....................5-3
California Proposition 65
Warning............................5-3
California Perchlorate
Materials Requirements.....5-3
Doing Your Own
Service Work....................5-4
Adding Equipment to the
Outside of the Vehicle......5-4
Fuel
Fuel....................................5-5
Gasoline Octane.................5-5
Gasoline Specications.......5-5
California Fuel....................5-5
Additives.............................5-5
Fuels in Foreign
Countries..........................5-6
Filling the Tank...................5-7
Filling a Portable Fuel
Container..........................5-8
Checking Things
Under the Hood
Checking Things Under
the Hood..........................5-9
Hood Release.....................5-9
Engine Compartment
Overview.........................5-10
Engine Oil.........................5-11
Engine Oil Life System.....5-13
Engine Air Cleaner/Filter. . .5-15
Automatic Transmission
Fluid................................5-16
Cooling System.................5-16
Engine Coolant.................5-17
Engine Overheating...........5-21
Overheated Engine
Protection
Operating Mode
...............5-23
Power Steering Fluid.........5-23
Windshield Washer Fluid. . .5-24
Brakes..............................5-25
Battery..............................5-28
Jump Starting...................5-28
All-Wheel Drive
All-Wheel Drive.................5-33
Headlamp Aiming
Headlamp Aiming..............5-33
Bulb Replacement
Bulb Replacement.............5-33
Halogen Bulbs..................5-33
License Plate Lamp..........5-34
Replacement Bulbs...........5-34
Windshield Wiper
Blade Replacement
Windshield Wiper Blade
Replacement...................5-34
Tires
Tires.................................5-35
Tire Sidewall Labeling.......5-36
Tire Terminology and
Denitions.......................5-38
Ination - Tire Pressure. . . .5-41
Tire Pressure Monitor
System............................5-42
Tire Pressure Monitor
Operation........................5-44
Tire Inspection and
Rotation..........................5-47
Service and Appearance Care 5-1

Doing Your Own
Service Work
{CAUTION
You can be injured and the
vehicle could be damaged if you
try to do service work on a vehicle
without knowing enough about it.
Be sure you have sufficient
knowledge, experience, the
proper replacement parts, and
tools before attempting any
vehicle maintenance task.
Be sure to use the proper
nuts, bolts, and other
fasteners. English and metric
fasteners can be easily
confused. If the wrong
fasteners are used, parts
can later break or fall off.
You could be hurt.If doing some of your own service
work, use the proper service
manual. It tells you much more
about how to service the vehicle
than this manual can. To order
the proper service manual,
seeService Publications Ordering
Information on page 7-15.
This vehicle has an airbag system.
Before attempting to do your
own service work, seeServicing
Your Airbag-Equipped Vehicle
on page 1-59.
Keep a record with all parts receipts
and list the mileage and the date
of any service work performed. See
Maintenance Record on page 6-16.
Adding Equipment to the
Outside of the Vehicle
Things added to the outside of the
vehicle can affect the airow
around it. This can cause wind
noise and can affect fuel economy
and windshield washer performance.
Check with your dealer/retailer
before adding equipment to
the outside of the vehicle.
5-4 Service and Appearance Care

Fuel
Use of the recommended fuel
is an important part of the proper
maintenance of this vehicle. To help
keep the engine clean and maintain
optimum vehicle performance, we
recommend the use of gasoline
advertised as TOP TIER Detergent
Gasoline.
Gasoline Octane
Use regular unleaded gasoline with
a posted octane rating of 87 or
higher. If the octane rating is less
than 87, you might notice an audible
knocking noise when you drive,
commonly referred to as spark
knock. If this occurs, use a gasoline
rated at 87 octane or higher as
soon as possible. If you are using
gasoline rated at 87 octane or higher
and you hear heavy knocking, the
engine needs service.
Gasoline Specications
At a minimum, gasoline
should meet ASTM specication
D 4814 in the United States or
CAN/CGSB-3.5 or 3.511 in Canada.
Some gasolines contain an
octane-enhancing additive called
methylcyclopentadienyl manganese
tricarbonyl (MMT). We recommend
against the use of gasolines
containing MMT. SeeAdditives on
page 5-5for additional information.
California Fuel
If the vehicle is certied to meet
California Emissions Standards,
it is designed to operate on fuels
that meet California specications.
See the underhood emission control
label. If this fuel is not available in
states adopting California emissions
standards, the vehicle will operate
satisfactorily on fuels meeting federal
specications, but emission controlsystem performance might be
affected. The malfunction indicator
lamp could turn on and the vehicle
might fail a smog-check test. See
Malfunction Indicator Lamp on
page 3-41. If this occurs, return to
your authorized dealer/retailer for
diagnosis. If it is determined that the
condition is caused by the type of
fuel used, repairs might not be
covered by the vehicle warranty.
Additives
To provide cleaner air, all gasolines
in the United States are now required
to contain additives that help prevent
engine and fuel system deposits
from forming, allowing the emission
control system to work properly.
In most cases, you should not have
to add anything to the fuel. However,
some gasolines contain only the
minimum amount of additive required
to meet U.S. Environmental
Protection Agency regulations.
Service and Appearance Care 5-5