2008 GMC ACADIA check engine light

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 will come on
briey when you start your
engine. If it does not,
have your vehicle serviced.
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 2-21.
3-54

BATTERY SAVER ACTIVE
This message displays when the system detects
that the battery voltage is dropping below expected
levels. The battery saver system starts reducing
certain features of the vehicle that you may be able
to notice. At the point that the features are disabled,
this message is displayed. It means that the vehicle
is trying to save the charge in the battery.
Turn off all unnecessary accessories to allow the
battery to recharge.
The normal battery voltage range is 11.5 to 15.5 volts.
CHANGE ENGINE OIL SOON
This message displays when the engine oil needs to
be changed. When you change the engine oil, be sure
to reset the CHANGE ENGINE OIL SOON message.
SeeEngine Oil Life System on page 5-18for information
on how to reset the message. SeeEngine Oil on
page 5-15andScheduled Maintenance on page 6-4
for more information.
CHECK TIRE PRESSURE
This message displays when the pressure in one or
more of the vehicle’s tires needs to be checked.
This message also displays LEFT FRONT, RIGHT
FRONT, LEFT REAR, or RIGHT REAR to indicate
which tire needs to be checked. You can receive more
than one tire pressure message at a time. To read
the other messages that may have been sent at
the same time, press the set/reset button or the trip
odometer reset stem. If a tire pressure message
appears on the DIC, stop as soon as you can. Have
the tire pressures checked and set to those shown
on the Tire Loading Information label. SeeTires
on page 5-48,Loading Your Vehicle on page 4-21,
andInflation - Tire Pressure on page 5-55. The DIC
also shows the tire pressure values. See “DIC Operation
and Displays (With DIC Buttons)” earlier in this section.
If the tire pressure is low, the low tire pressure
warning light comes on. SeeTire Pressure Light
on page 3-50.
CRUISE SET TO XXX
This message displays whenever the cruise control
is set. SeeCruise Control on page 3-12for more
information.
3-67

STARTING DISABLED SERVICE
THROTTLE
This message displays when your vehicle’s throttle
system is not functioning properly. Have your vehicle
serviced by your dealer/retailer.
THEFT ATTEMPTED
This message displays if the content theft-deterrent
system has detected a break-in attempt while you were
away from your vehicle. SeeContent Theft-Deterrent
on page 2-21for more information.
TIGHTEN GAS CAP
This message may display along with the check engine
light on the instrument panel cluster if the vehicle’s
fuel cap is not tightened properly. SeeMalfunction
Indicator Lamp on page 3-50. Reinstall the fuel cap
fully. SeeFilling the Tank on page 5-9. The diagnostic
system can determine if the fuel cap has been left
off or improperly installed. A loose or missing fuel
cap allows fuel to evaporate into the atmosphere.
A few driving trips with the cap properly installed
should turn this light and message off.
TIRE LEARNING ACTIVE
This message displays when the Tire Pressure Monitor
System (TPMS) is re-learning the tire positions on
your vehicle. The tire positions must be re-learned after
rotating the tires or after replacing a tire or sensor.
SeeTire Inspection and Rotation on page 5-62,
Tire Pressure Monitor System on page 5-57, and
Inflation - Tire Pressure on page 5-55for more
information.
TRACTION CONTROL OFF
This message displays when the Traction Control
System (TCS) is turned off. Adjust your driving
accordingly. SeeStabiliTrak
®System on page 4-6for
more information. This message clears itself after
10 seconds.
3-74

Antilock Brake System (ABS)
Your vehicle has the Antilock Brake System (ABS), an
advanced electronic braking system that will help
prevent a braking skid.
When you start the engine and begin to drive away,
ABS will check itself. You might hear a momentary
motor or clicking noise while this test is going on, and
you might even notice that the brake pedal moves
a little. This is normal.
If there is a problem with
ABS, this warning light will
stay on. SeeAntilock
Brake System Warning
Light on page 3-48.
Let us say the road is wet and you are driving safely.
Suddenly, an animal jumps out in front of you. You slam
on the brakes and continue braking. Here is what
happens with ABS:
A computer senses that wheels are slowing down. If
one of the wheels is about to stop rolling, the computer
will separately work the brakes at each wheel.ABS can change the brake pressure faster than any
driver could. The computer is programmed to make the
most of available tire and road conditions. This can
help you steer around the obstacle while braking hard.
As you brake, the computer keeps receiving updates
on wheel speed and controls braking pressure
accordingly.
Remember: ABS does not change the time you need to
get your foot up to the brake pedal or always decrease
stopping distance. If you get too close to the vehicle in
front of you, you will not have time to apply the brakes if
that vehicle suddenly slows or stops. Always leave
enough room up ahead to stop, even though you
have ABS.
Using ABS
Do not pump the brakes. Just hold the brake pedal
down rmly and let antilock work for you. You might hear
the antilock pump or motor operate, and feel the
brake pedal pulsate, but this is normal.
4-5

You can run the engine to keep warm, but be careful.
{CAUTION:
Snow can trap exhaust gases under your
vehicle. This can cause deadly CO (carbon
monoxide) gas to get inside. CO could
overcome you and kill you. You cannot see it
or smell it, so you might not know it is in your
vehicle. Clear away snow from around the
base of your vehicle, especially any that is
blocking the exhaust pipe. And check around
again from time to time to be sure snow does
not collect there.
Open a window just a little on the side of the
vehicle that is away from the wind. This will
help keep CO out.
Run the engine only as long as you must. This saves fuel.
When you run the engine, make it go a little faster than
just idle. That is, push the accelerator slightly. This uses
less fuel for the heat that you get and it keeps the battery
charged. You will need a well-charged battery to restart
the vehicle, and possibly for signaling later on with the
headlamps. Let the heater run for a while.
4-19

4. Open the hoods and locate the positive (+) and
negative (−) terminal locations on the other
vehicle. Your vehicle has a remote positive (+) and
a remote negative (−) jump starting terminal.
SeeEngine Compartment Overview on page 5-14
for more information on the terminal locations.
{CAUTION:
Using a match near a battery can cause battery
gas to explode. People have been hurt doing
this, and some have been blinded. Use a
ashlight if you need more light.
Be sure the batteries have enough water. You
do not need to add water to the ACDelco
®
battery (or batteries) installed in your new
vehicle. But if a battery has ller caps, be sure
the right amount of uid is there. If it is low,
add water to take care of that rst. If you do
not, explosive gas could be present.
Battery uid contains acid that can burn you.
Do not get it on you. If you accidentally get it
in your eyes or on your skin, ush the place
with water and get medical help immediately.
{CAUTION:
Fans or other moving engine parts can injure
you badly. Keep your hands away from moving
parts once the engine is running.
5. Check that the jumper cables do not have loose or
missing insulation. If they do, you could get a
shock. The vehicles could be damaged too.
Before you connect the cables, here are some
basic things you should know. Positive (+) will go to
positive (+) or to a remote positive (+) terminal if
the vehicle has one. Negative (−) will go to a heavy,
unpainted metal engine part or to a remote
negative (−) terminal if the vehicle has one.
Do not connect positive (+) to negative (−)oryou
will get a short that would damage the battery
and maybe other parts too. And do not connect the
negative (−) cable to the negative (−) terminal on
the dead battery because this can cause sparks.
5-40

Audio System (cont.)
Setting the Time..........................................3-85
Theft-Deterrent Feature...............................3-127
Audio System(s).............................................3-87
Automatic Transmission
Fluid..........................................................5-21
Operation...................................................2-30
B
Battery..........................................................5-38
Electric Power Management..........................3-19
Run-Down Protection...................................3-20
Brake
Emergencies................................................ 4-6
Brakes..........................................................5-35
System Warning Light..................................3-47
Braking........................................................... 4-4
Braking in Emergencies..................................... 4-6
Break-In, New Vehicle.....................................2-25
Bulb Replacement...........................................5-45
Halogen Bulbs............................................5-45
Headlamp Aiming........................................5-45
License Plate Lamps....................................5-46
Replacement Bulbs......................................5-46
Buying New Tires...........................................5-64
C
Calibration.....................................................2-40
California Fuel.................................................. 5-7
California Perchlorate Materials Requirements....... 5-4
California Proposition 65 Warning....................... 5-4
Canadian Owners................................................ ii
Capacities and Specications..........................5-107
Carbon Monoxide...................2-14, 2-38, 4-17, 4-30
Care of
Safety Belts................................................5-92
Cargo Cover..................................................2-58
Cargo Management System.............................2-59
Cargo Tie Downs............................................2-59
CD, MP3 ............................................3-104, 3-108
Center Console Storage Area...........................2-56
Chains, Tire...................................................5-70
Charging System Light....................................3-45
Check
Engine Light...............................................3-50
Checking Things Under the Hood......................5-12
Chemical Paint Spotting...................................5-96
Child Restraints
Child Restraint Systems...............................1-43
Infants and Young Children...........................1-39
Lower Anchors and Tethers for Children..........1-47
Older Children.............................................1-36
2

Engine
Air Cleaner/Filter.........................................5-20
Check and Service Engine Soon Light............3-50
Coolant......................................................5-22
Coolant Heater............................................2-29
Coolant Temperature Gage...........................3-49
Coolant Temperature Warning Light................3-49
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-14
Exhaust.....................................................2-38
Oil .............................................................5-15
Oil Life System...........................................5-18
Overheated Protection Operating Mode...........5-26
Overheating................................................5-25
Running While Parked..................................2-39
Starting......................................................2-27
Entry Lighting.................................................3-17
Event Data Recorders.....................................7-16
Extender, Safety Belt.......................................1-36
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-20
Finish Damage...............................................5-95
Flashers, Hazard Warning.................................. 3-6Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-71
Flat Tire, Changing.........................................5-72
Flat Tire, Storing.............................................5-84
Floor Mats.....................................................2-57
Fluid.............................................................5-21
Power Steering...........................................5-33
Windshield Washer......................................5-34
Fog Lamp
Fog ...........................................................3-16
Fog Lamp Light..............................................3-55
Fuel............................................................... 5-6
Additives...................................................... 5-7
California Fuel.............................................. 5-7
Filling a Portable Fuel Container....................5-12
Filling the Tank............................................. 5-9
Fuels in Foreign Countries.............................. 5-8
Gage.........................................................3-56
Gasoline Octane........................................... 5-6
Gasoline Specications.................................. 5-6
Fuses
Fuses and Circuit Breakers.........................5-100
Instrument Panel Fuse Block.......................5-100
Underhood Fuse Block...............................5-103
Windshield Wiper.......................................5-100
5