engine PONTIAC G6 2007 Service Manual

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 assure 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 may 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, your emission
controls may not work as well, your fuel
economy may not be as good, and your engine
may not run as smoothly. This could lead to
costly repairs that may not be covered by your
warranty.
Notice:Modications made to the engine,
transaxle, 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 may
cause this light to come on. Modications to
these systems could lead to costly repairs not
covered by your warranty. This may also
result in a failure to pass a required Emission
Inspection/Maintenance test. SeeAccessories
and Modifications on page 308.
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This light should come on, as a check to show
you it is working, when the ignition is on and the
engine is not running. If the light does not
come on, have it repaired. This light will also
come on during a malfunction in one of two ways:
Light Flashing— A misre condition has
been detected. A misre increases vehicle
emissions and may damage the emission
control system on your vehicle. Diagnosis and
service may be required.
Light On Steady— An emission control
system malfunction has been detected on your
vehicle. Diagnosis and service may be
required.
If the Light is Flashing
The following may prevent more serious damage
to your vehicle:
Reducing vehicle speed
Avoiding hard accelerations
Avoiding steep uphill grades
If you are towing a trailer, reduce the amount
of cargo being hauled as soon as it is
possibleIf the light stops ashing and remains on steady,
see “If the Light Is On Steady” following.
If the light continues to ash, when it is safe to do
so, stop the vehicle. Find a safe place to park
your vehicle. Turn the key off, wait at least
10 seconds and restart the engine. If the light
remains on steady, see “If the Light Is On Steady”
following. If the light is still ashing, follow the
previous steps, and see your dealer for service as
soon as possible.
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully
install the cap. SeeFilling the Tank on page 313.
The diagnostic system can determine if the
fuel cap has been left off or improperly installed.
A loose or missing fuel cap will allow fuel to
evaporate into the atmosphere. A few driving trips
with the cap properly installed should turn the
light off.
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Did you just drive through a deep puddle of
water?
If so, your electrical system may be wet. The
condition will usually be 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 310. Poor fuel
quality will cause your engine not to run as
efficiently as designed. You may 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 may 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 can check the vehicle.
Your dealer has the proper test equipment and
diagnostic tools to x any mechanical or electrical
problems that may have developed.Emissions Inspection and
Maintenance Programs
Some state/provincial and local governments have
or may 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 your battery or if your battery has
run down. The diagnostic system is designed to
evaluate critical emission control systems
during normal driving. This may 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
can prepare the vehicle for inspection.
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Oil Pressure Light
If you have a low engine
oil pressure problem,
this light will stay on after
you start your engine, or
come on when you are
driving. This indicates
that your engine is not
receiving enough oil.
The engine could be low on oil, or could have
some other oil problem. Have it xed immediately.
The oil light could also come on in three other
situations:
When the ignition is on but the engine is not
running, the light will come on as a test to
show you it is working, but the light will go out
when you turn the ignition to START. If it
doesn’t come on with the ignition on, you may
have a problem with the fuse or bulb. Have
it xed right away.
If the vehicle is idling at a stop sign, the light
may blink on and then off.
If you make a hard stop, the light may come
on for a moment. This is normal.
{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.
Security Light
For information
regarding this light, see
Theft-Deterrent
Systems on page 118.
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Information Mode
INFO/4(Information):Press this button to scroll
through the vehicle information mode displays
in the following order:
TRIP A
TRIP B
FUEL RANGE (Fuel Range Until Empty)
ECON (Average Fuel Economy)
AV SPEED (Average Vehicle Speed)
OIL LIFE (Engine Oil Life System)
TRIP A or TRIP B:Press the information button
until TRIP A or TRIP B is displayed. This
shows the current distance traveled since the last
reset for each trip odometer in either miles (mi)
or kilometers (km). Both odometers can be used at
the same time. Each trip odometer can be reset
to zero separately by pressing and holding
the enter button for a few seconds while the
desired trip odometer is displayed.FUEL RANGE:Press the information button until
FUEL RANGE is displayed. This shows the
remaining distance you can drive without refueling.
It is based on fuel economy and the fuel
remaining in the tank.
When the fuel level is low, FUEL RANGE LOW
displays.
The fuel economy data used to determine fuel
range is an average of recent driving conditions.
As your driving conditions change, this data is
gradually updated. Fuel range cannot be reset.
ECON (Economy):Press the information button
until ECON is displayed. Average fuel economy is
how many miles per gallon (mpg) or liters per
100 kilometers (L/100 km) your vehicle is getting
based on current and past driving conditions.
Press and hold the enter button while ECON is
displayed to reset the average fuel economy.
Average fuel economy will then be calculated
starting from that point. If the average fuel economy
is not reset, it will be continually updated each time
you drive.
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AV (Average) SPEED:Press the information
button until AV SPEED is displayed. This shows the
vehicle’s average speed in miles per hour (mph) or
kilometers per hour (km/h).
Press and hold the enter button while AV SPEED is
displayed to reset the average vehicle speed.
OIL LIFE:Press the information button until
OIL LIFE is displayed. The engine oil life system
shows an estimate of the oil’s remaining useful life.
It shows 100% when the system is reset after
an oil change. It will alert you to change the oil on
a schedule consistent with your driving conditions.
Always reset the engine oil life system after an oil
change. SeeEngine Oil Life System on page 328.
In addition to the engine oil life system monitoring
the oil life, additional maintenance is recommended
in the Maintenance Schedule in this manual. See
Scheduled Maintenance on page 431andEngine
Oil on page 325.Personalization
MENU:Press this button while the ignition is ON to
scroll through each of the personalization options in
the following order. To avoid excessive drain on the
battery, it is recommended that the headlamps are
turned off. If the vehicle is moving faster than 2 mph
(3 km/h), the personalization menu options are not
available, except for the UNITS option. All of the
personalization options may not be available on
your vehicle. Only the options available display on
the DIC.
Oil Life Reset
Units Selection (English/Metric)
Remote Start Capability
Horn Chirp During Remote Keyless Entry
Locking
Horn Chirp During Remote Keyless Entry
Unlocking
Exterior Light Flash During Remote Keyless
Entry Locking or Unlocking
Delayed Locking
Automatic Vehicle Unlocking: Specic Doors
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BRAKE FLUID:This message displays to inform
the driver that the brake uid level is low while the
ignition is in ON. The brake system warning light on
the instrument panel cluster also comes on. See
Brake System Warning Light on page 199for more
information. Have the brake system serviced by
your dealer as soon as possible.
CHANGE OIL SOON:This message displays
when the life of the engine oil has expired and it
should be changed.
When you acknowledge the CHANGE OIL SOON
message by clearing it from the display, you
still must reset the engine oil life system
separately. SeeEngine Oil Life System on
page 328,Engine Oil on page 325, andScheduled
Maintenance on page 431for more information.
CHECK CARGO TOP:If your vehicle has a
retractable hardtop, this message displays if the
cargo divider is not in place when operating
the retractable hardtop. Open the trunk and make
sure the cargo divider is secure and no objects
are on the divider. SeeTrunk on page 113,
Lowering the Retractable Hardtop on page 154,
andRaising the Retractable Hardtop on page 157
for more information.CHECK GAS CAP:This message displays if the
fuel cap has not been fully tightened. Recheck
the fuel cap to make sure that it is on properly.
A few driving trips with the cap properly installed
should turn the message off.
DOOR AJAR:This message displays if one or
more of the vehicle’s doors are not closed
properly. When this message displays, make sure
that the door is closed completely.
ENGINE DISABLED:This message displays if
the starting of the engine is disabled. Have
your vehicle serviced immediately by your dealer.
ENG (Engine) PWR (Power) REDUCED:This
message displays to inform you that the vehicle
has reduced engine power to avoid damaging the
engine. Reduced engine power can affect the
vehicle’s ability to accelerate. If this message is on,
but there is no reduction in performance, proceed
to your destination. The performance may be
reduced the next time the vehicle is driven. The
vehicle may be driven at a reduced speed
while this message is on, but acceleration and
speed may be reduced. Anytime this message
stays on, the vehicle should be taken to your
dealer for service as soon as possible.
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ICE POSSIBLE:This message displays when the
outside air temperature is cold enough to create
icy road conditions. Adjust your driving accordingly.
KEY FOB BATT (Battery) LOW:This message
displays if the Remote Keyless Entry (RKE)
transmitter battery is low. Replace the battery in
the transmitter. See “Battery Replacement”
underRemote Keyless Entry System Operation on
page 101.
LOW FUEL:This message displays along with a
low fuel warning light on the instrument panel
cluster when your vehicle is low on fuel. Rell the
fuel tank as soon as possible. SeeLow Fuel
Warning Light on page 208,Fuel on page 310,
andFilling the Tank on page 313.
LOW OIL LEVEL:This message may display on
some vehicles. For correct operation of the low oil
sensing system, your vehicle should be on a level
surface. A false LOW OIL LEVEL message may
appear if the vehicle is parked on a grade. The oil
level sensing system does not check for actual oil
level if the engine has been off for a short period of
time. The oil level is never checked while the
engine is running. If the LOW OIL LEVEL message
appears, and your vehicle has been parked on levelground with the engine off for at least 30 minutes,
the oil level should be checked by looking at the oil
dipstick. Prior to checking the oil level, be sure the
engine has been off for a few minutes and your
vehicle is on a level surface. Then check the
dipstick and add oil if necessary. SeeEngine Oil on
page 325.
LOW WASHER FLUID:This message displays
when your vehicle is low on windshield washer
uid. Rell the windshield washer uid reservoir as
soon as possible. See “Adding Washer Fluid”
underWindshield Washer Fluid on page 350.
PARKING BRAKE:This message displays if the
parking brake is left engaged and you try to
drive away. SeeParking Brake on page 135for
more information.
POWER STEERING:This message displays if a
problem has been detected with the electric
power steering, if your vehicle has this feature.
Have your vehicle serviced immediately by
your dealer.
SERVICE AIR BAG:This message displays if
there is a problem with the airbag system.
Have your vehicle serviced immediately by your
dealer.
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TRUNK AJAR:This message displays when the
trunk lid is not closed completely. Make sure
that the trunk lid is closed completely. SeeTrunk
on page 113for more information.
DIC Vehicle Personalization
The following personalization options may appear
on your vehicle’s audio display by pressing the
MENU button:
OIL LIFE RESET:When this option is displayed,
you can reset the engine oil life system. To
reset the system, seeEngine Oil Life System on
page 328.
UNITS:When UNITS appears on the display,
press the enter button to move between METRIC
or ENGLISH. When you have made your
choice, press the MENU button to record your
selection. The initial setting from the factory
is English for the United States and metric for
Canada.
If you choose English, all information will be
displayed in English units. For example, distance
in miles and fuel economy in miles per gallon
is displayed.If you choose metric, all information will be
displayed in metric units. For example, distance in
kilometers and fuel economy in liters per
100 kilometers is displayed.
The unit measurement will also change the trip
odometer, temperature, and average fuel economy
displays.
REMOTE START:If your vehicle has this feature,
the remote start option can be enabled or
disabled. When REMOTE START appears on the
display, press the enter button to move between
OFF and ON. When you have made your
choice, press the MENU button to record your
selection. The initial setting from the factory is ON.
LOCK HORN:If your vehicle has Remote
Keyless Entry (RKE), this option which allows the
vehicle’s horn to chirp every time the lock
button on the RKE transmitter is pressed, can be
enabled or disabled. When LOCK HORN
appears on the display, press the enter button to
move between ON and OFF. When you have
made your choice, press the MENU button
to record your selection. The initial setting from
the factory is OFF.
216

Set up your audio system by presetting your
favorite radio stations, setting the tone, and
adjusting the speakers. Then, when driving
conditions permit, you can tune to your favorite
radio stations using the presets and steering
wheel controls if the vehicle has them.
Notice:Before adding any sound equipment
to your vehicle, such as an audio system,
CD player, CB radio, mobile telephone,
or two-way radio, make sure that it can be
added by checking with your dealer. Also,
check federal rules covering mobile radio and
telephone units. If sound equipment can be
added, it is very important to do it properly.
Added sound equipment may interfere with the
operation of your vehicle’s engine, radio, or
other systems, and even damage them.
Your vehicle’s systems may interfere with the
operation of sound equipment that has
been added.
Your vehicle has a feature called Retained
Accessory Power (RAP). With RAP, the audio
system can be played even after the ignition
is turned off. SeeRetained Accessory Power
(RAP) on page 124for more information.Setting the Time for Radios without
Radio Data Systems (RDS)
To set the hour, press the clock button. The clock
symbol appears on the display and the hour
number ashes. Turn the ADJ (adjust) knob to
increase or to decrease the hours. To set
the minutes, press the clock button again. The
minute numbers ashes. Turn the ADJ knob
to increase or to decrease the minutes. The time
can be set with the ignition on or off.
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