2007 GMC ACADIA maintenance

Tires
..................................................... 435
Appearance Care
.................................. 478
Vehicle Identication
............................. 488
Electrical System
.................................. 489
Capacities and Specications
................ 497
Maintenance Schedule
............................... 499
Maintenance Schedule
.......................... 500Customer Assistance Information
............. 517
Customer Assistance and Information
.... 518
Reporting Safety Defects
...................... 533
Vehicle Data Recording and Privacy
..... 536
Index
........................................................... 539
2

You may want to consider not using seat covers
or other aftermarket equipment. SeeAdding
Equipment to Your Airbag-Equipped Vehicle on
page 91for more information about modications
that can affect how the system operates.
{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. You do
not want the system to inate while someone is
working on your vehicle. Your dealer/retailerand the service manual have information about
servicing your vehicle and the airbag system.
To purchase a service manual, seeService
Publications Ordering Information on page 535.
{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.
The airbag system does not need regular
maintenance.
90

Restraint System Check
Checking the Restraint Systems
Safety Belts
Now and then, make sure the safety belt reminder
light and all your belts, buckles, latch plates,
retractors, and anchorages are working properly.
SeeSafety Belt Reminder Light on page 216
for more information.
Look for any other loose or damaged safety belt
system parts. If you see anything that might keep a
safety belt system from doing its job, have it
repaired. Keep safety belts clean and dry. See
Care of Safety Belts on page 482for more
information.
Torn or frayed safety belts may not protect you in
a crash. They can rip apart under impact forces.
If a belt is torn or frayed, get a new one right away.
Airbag System
The airbag system does not need regularly
scheduled maintenance or replacement. Make
sure the airbag readiness light is working.
SeeAirbag Readiness Light on page 217for more
information.
Notice:If an airbag covering is damaged,
opened, or broken, the airbag may not work
properly. Do not open or break the airbag
coverings. If there are any opened or broken
airbag covers, have the airbag covering and/or
airbag module replaced. For the location of
the airbag modules, seeWhat Makes an Airbag
Inflate? on page 83. See your dealer/retailer
for service.
92

Malfunction Indicator Lamp
Check Engine Light
Your vehicle has a
computer which
monitors operation
of the fuel, ignition,
and emission control
systems.
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended
to make sure that emissions are at acceptable
levels for the life of the vehicle, helping to produce
a cleaner environment. The check engine light
comes on to indicate that there is a problem and
service is required. Malfunctions often will be
indicated by the system before any problem is
apparent. This can prevent more serious damage
to your vehicle. This system is also designed
to assist your service technician in correctly
diagnosing any malfunction.Notice:If you keep driving your vehicle with
this light on, after awhile, the emission controls
might not work as well, your vehicle’s fuel
economy might not be as good, and the engine
might not run as smoothly. This could lead
to costly repairs that might not be covered
by your warranty.
Notice:Modications made to the engine,
transmission, exhaust, intake, or fuel system
of your vehicle or the replacement of the
original tires with other than those of the same
Tire Performance Criteria (TPC) can affect
your vehicle’s emission controls and can cause
this light to come on. Modications to these
systems could lead to costly repairs not
covered by your warranty. This could also
result in a failure to pass a required Emission
Inspection/Maintenance test. SeeAccessories
and Modifications on page 385.
226

Did you just drive through a deep puddle
of water?
If so, your vehicle’s electrical system might be
wet. The condition is usually corrected when
the electrical system dries out. A few driving trips
should turn the light off.
Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel.
SeeGasoline Octane on page 388. Poor fuel
quality causes the engine not to run as efficiently
as designed. You might notice this as stalling
after start-up, stalling when you put the vehicle
into gear, misring, hesitation on acceleration,
or stumbling on acceleration — these conditions
might go away once the engine is warmed up.
This will be detected by the system and cause
the light to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at
least one full tank of the proper fuel to turn the
light off.
If none of the above steps have made the light
turn off, your dealer/retailer can check the vehicle.
Your dealer/retailer has the proper test equipment
and diagnostic tools to x any mechanical or
electrical problems that might have developed.Emissions Inspection and
Maintenance Programs
Some state/provincial and local governments have
or might begin programs to inspect the emission
control equipment on your vehicle. Failure to pass
this inspection could prevent you from getting a
vehicle registration.
Here are some things you need to know to help
your vehicle pass an inspection:
Your vehicle will not pass this inspection if the
check engine light is on or not working properly.
Your vehicle will not pass this inspection if
the OBD (on-board diagnostic) system determines
that critical emission control systems have not
been completely diagnosed by the system.
The vehicle would be considered not ready for
inspection. This can happen if you have recently
replaced the battery or if the battery has run
down. The diagnostic system is designed
to evaluate critical emission control systems
during normal driving. This can take several days
of routine driving. If you have done this and
your vehicle still does not pass the inspection for
lack of OBD system readiness, your dealer/retailer
can prepare the vehicle for inspection.
228

Oil Pressure Light
{CAUTION:
Do not keep driving if the oil pressure is
low. If you do, your engine can become
so hot that it catches re. You or others
could be burned. Check your oil as soon as
possible and have your vehicle serviced.
Notice:Lack of proper engine oil maintenance
may damage the engine. The repairs would
not be covered by your warranty. Always follow
the maintenance schedule in this manual for
changing engine oil.
This light tells you if
there could be a
problem with your
engine oil pressure.The light comes on when you turn your key to ON
or START. It goes off once you start your engine.
That is a check to be sure the light works. If it does
not come on, be sure to have it xed so it will be
there to warn you if something goes wrong.
When the light comes on and stays on, it means
that oil is not owing through your engine properly.
You could be low on oil and you might have
some other system problem.
Security Light
This light ashes
when the security
system is activated.
For more information, seeTheft-Deterrent
Systems on page 118.
229

T(Vehicle Information):Press this button to
display the oil life, park assist on vehicles with this
feature, units, tire pressure readings, Tire Pressure
Monitor (TPM) system programming, and Remote
Keyless Entry (RKE) transmitter programming.
3(Trip/Fuel):Press this button to display the
odometer, trip odometers, fuel range, average
economy, timer, fuel used, and average speed.
Vehicle Information Menu Items
T
(Vehicle Information):Press this button
to scroll through the following menu items:
OIL LIFE
Press the vehicle information button until OIL LIFE
REMAINING displays. This display shows an
estimate of the oil’s remaining useful life. If you
see 99% OIL LIFE REMAINING on the display,
that means 99% of the current oil life remains.
The engine oil life system will alert you to change
the oil on a schedule consistent with your
driving conditions.When the remaining oil life is low, the CHANGE
ENGINE OIL SOON message will appear on
the display. See “CHANGE ENGINE OIL
SOON” underDIC Warnings and Messages
on page 244. You should change the oil as
soon as you can. SeeEngine Oil on page 397.
In addition to the engine oil life system
monitoring the oil life, additional maintenance
is recommended in the Maintenance Schedule
in this manual. SeeScheduled Maintenance
on page 502for more information.
Remember, you must reset the OIL LIFE display
yourself after each oil change. It will not reset
itself. Also, be careful not to reset the OIL LIFE
display accidentally at any time other than
when the oil has just been changed. It cannot
be reset accurately until the next oil change.
To reset the engine oil life system, seeEngine
Oil Life System on page 400.
234

OIL LIFE
To access this display, the vehicle must be in
PARK (P). Press the trip odometer reset stem until
OIL LIFE REMAINING displays. This display
shows an estimate of the oil’s remaining useful
life. If you see 99% OIL LIFE REMAINING on the
display, that means 99% of the current oil life
remains. The engine oil life system will alert you
to change the oil on a schedule consistent
with your driving conditions.
When the remaining oil life is low, the CHANGE
ENGINE OIL SOON message will appear on
the display. See “CHANGE ENGINE OIL
SOON” underDIC Warnings and Messages
on page 244. You should change the oil as
soon as you can. SeeEngine Oil on page 397.In addition to the engine oil life system
monitoring the oil life, additional maintenance is
recommended in the Maintenance Schedule
in this manual. SeeScheduled Maintenance
on page 502for more information.
Remember, you must reset the OIL LIFE
display yourself after each oil change. It will not
reset itself. Also, be careful not to reset the
OIL LIFE display accidentally at any time other
than when the oil has just been changed.
It cannot be reset accurately until the next oil
change. To reset the engine oil life system,
seeEngine Oil Life System on page 400.
241