engine PONTIAC G8 2009 Service Manual

CAUTION (Continued)
The exhaust system leaks
due to corrosion or damage.
The vehicle’s exhaust system
has been modied, damaged
or improperly repaired.
There are holes or openings
in the vehicle body from
damage or after-market
modications that are not
completely sealed.
If unusual fumes are detected or if
it is suspected that exhaust is
coming into the vehicle:
Drive it only with the windows
completely down.
Have the vehicle repaired
immediately.
Never park the vehicle with the
engine running in an enclosed
area such as a garage or a
building that has no fresh air
ventilation.
Running the Vehicle
While Parked
It is better not to park with the
engine running. But if you ever have
to, here are some things to know.
{CAUTION
Idling a vehicle in an enclosed
area with poor ventilation is
dangerous. Engine exhaust may
enter the vehicle. Engine exhaust
contains Carbon Monoxide (CO)
which cannot be seen or smelled.
It can cause unconsciousness
and even death. Never run the
engine in an enclosed area that
has no fresh air ventilation. For
more information, see Engine
ExhaustEngine Exhaust on
page 8-14.
{CAUTION
It can be dangerous to get out
of the vehicle if the automatic
transmission shift lever is not fully
in P (Park) with the parking brake
rmly set. The vehicle can roll.
Do not leave the vehicle when the
engine is running unless you have
to. If you have left the engine
running, the vehicle can move
suddenly. You or others could be
injured. To be sure the vehicle will
not move, even when you are on
fairly level ground, always set the
parking brake and move the shift
lever to P (Park).
Follow the proper steps to be sure
the vehicle will not move. See
Shifting Into Park (Automatic
Transmission) on page 8-12.
If parking on a hill and pulling a
trailer, seeTowing a Trailer
on page 9-89.
Driving and Operating 8-15

And, of course, actual stopping
distances vary greatly with the
surface of the road, whether it is
pavement or gravel; the condition of
the road, whether it is wet, dry, or icy;
tire tread; the condition of the brakes;
the weight of the vehicle; and the
amount of brake force applied.
Avoid needless heavy
braking. Some people drive in
spurts — heavy acceleration
followed by heavy braking — rather
than keeping pace with traffic.
This is a mistake. The brakes might
not have time to cool between
hard stops. The brakes will wear out
much faster if you do a lot of
heavy braking. If you keep pace
with the traffic and allow realistic
following distances, you will
eliminate a lot of unnecessary
braking. That means better braking
and longer brake life.
If your vehicle’s engine ever stops
while you are driving, brake normally
but do not pump the brakes. If you
do, the pedal could get harder topush down. If the engine stops, you
will still have some power brake
assist. But you will use it when you
brake. Once the power assist is used
up, it can take longer to stop and the
brake pedal will be harder to push.
Adding non-dealer/non-retailer
accessories can affect your vehicle’s
performance. SeeAccessories
and Modifications on page 9-3.
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. See
Antilock Brake System (ABS)
Warning Light on page 4-16.
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 the 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
to each wheel, as required, faster
than any driver could. This can help
you steer around the obstacle while
braking hard.
8-18 Driving and Operating

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.
Braking in Emergencies
With ABS, you can steer and
brake at the same time. In many
emergencies, steering can help
you more than even the very best
braking.
Electronic Stability
Program
The vehicle has the Electronic
Stability Program (ESP®) that assists
with directional control of the vehicle
in difficult driving conditions by
reducing engine power and applying
the brakes to individual wheels. This
is especially useful in slippery road
conditions. The system operates if it
senses that the rear wheels are
spinning too much, are beginning to
lose traction or if it senses that the
vehicle is not moving in its intended
direction. It turns on automatically
every time the vehicle is started.When ESP is working, this light
and the STABILITY CONTROL
ASSISTANCE message will come on
and the ESP CTRL message will be
displayed at the bottom of the DIC.
The STABILITY CONTROL
ASSISTANCE message will remain
on while the system is working
until the
3button is pressed to
display the trip computer. The
ESP CTRL message stays on at the
bottom of the DIC while the
system is working.
Driving and Operating 8-19

When this light and the STABILITY
CTRL OFF message is on briey and
the ESP OFF message is displayed
at the bottom of the DIC, the system
will not limit wheel spin.
If the ESP OFF message is always
displayed at the bottom of the
DIC when the button is pressed
to turn the system on or off, the
system needs repair. Contact your
dealer/retailer.The system is on when this light
and the STABILITY CTRL ON
message is displayed briey on
the DIC.
ESP Operation
ESP limits wheel spin by reducing
engine power to the wheels and
by applying brakes to each
individual wheel as necessary.
The ESP system is enabled
automatically when the vehicle
is started, and it will activate
the STABILITY CONTROL
ASSISTANCE light and the ESP
CTRL message on the DIC if it
senses that any of the wheels are
spinning or beginning to lose traction
while driving.Notice:If the wheel(s) of one axle
are allowed to spin excessively
while the ESC/TCS, ABS and
Brake warning lights and the
SERVICE ESC and/or SERVICE
TRACTION messages are
displayed, the differential could be
damaged. The repairs would not
be covered by the vehicle
warranty. Reduce engine power
and do not spin the wheel(s)
excessively while these lights and
this message are displayed.
The traction control system may
activate on dry or rough roads or
under conditions such as heavy
acceleration while turning or
abrupt upshifts/downshifts of the
transmission. When this happens,
a noise, vibration, or a reduction
in acceleration may be noticed.
This is normal.
Adding non-dealer/non-retailer
accessories can affect the vehicle’s
performance. SeeAccessories
and Modifications on page 9-3for
more information.
Driving and Operating 8-21

Steering
Power Steering
If you lose power steering assist
because the engine stops or the
system is not functioning, you can
steer but it will take much more effort.
Steering Tips
It is important to take curves at a
reasonable speed.
Traction in a curve depends on the
condition of the tires and the
road surface, the angle at which the
curve is banked, and your speed.
While in a curve, speed is the
one factor you can control.
If you need to reduce speed, do it
before you enter the curve, while the
front wheels are straight ahead.
Try to adjust the speed so you can
drive through the curve. Maintain
a reasonable, steady speed. Wait to
accelerate until you are out of the
curve, and then accelerate
gently into the straightaway.
Steering in Emergencies
There are times when steering can
be more effective than braking.
For example, you come over a hill
and nd a truck stopped in your
lane, or a car suddenly pulls
out from nowhere, or a child darts
out from between parked cars
and stops right in front of you.
You can avoid these problems by
braking — if you can stop in
time. But sometimes you cannot;
there is not room. That is the
time for evasive action — steering
around the problem.
Your vehicle can perform very well
in emergencies like these. First
apply the brakes. SeeBraking on
page 8-17. It is better to remove as
much speed as you can from a
possible collision. Then steer around
the problem, to the left or right
depending on the space available.An emergency like this requires
close attention and a quick decision.
If you are holding the steering wheel
at the recommended 9 and 3 o’clock
positions, you can turn it a full
180 degrees very quickly without
removing either hand. But you have
to act fast, steer quickly, and just as
quickly straighten the wheel once
you have avoided the object.
The fact that such emergency
situations are always possible is a
good reason to practice defensive
driving at all times and wear
safety belts properly.
8-22 Driving and Operating

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.
8-26 Driving and Operating

{CAUTION
Coasting downhill in N (Neutral)
or with the ignition off is
dangerous. The brakes will have
to do all the work of slowing down
and they 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. Always have the
engine running and the vehicle in
gear when going downhill.
Stay in your own lane. Do not
swing wide or cut across the
center of the road. Drive at
speeds that let you stay in your
own lane.
Top of hills: Be alert — something
could be in your lane (stalled car,
accident).
Pay attention to special road
signs (falling rocks area, winding
roads, long grades, passing or
no-passing zones) and take
appropriate action.
Winter Driving
Driving on Snow or Ice
Drive carefully when there is snow
or ice between the tires and the road,
creating less traction or grip. Wet ice
can occur at about 32°F (0°C) when
freezing rain begins to fall, resulting
in even less traction. Avoid driving on
wet ice or in freezing rain until roads
can be treated with salt or sand.
Drive with caution, whatever the
condition. Accelerate gently
so traction is not lost. Accelerating
too quickly causes the wheels
to spin and makes the surface under
the tires slick, so there is even
less traction.
Driving and Operating 8-27

Try not to break the fragile traction.
If you accelerate too fast, the drive
wheels will spin and polish the
surface under the tires even more.
TheAntilock Brake System (ABS)
on page 8-18improves vehicle
stability during hard stops on
a slippery roads, but apply the
brakes sooner than when on
dry pavement.
Allow greater following distance on
any slippery road and watch for
slippery spots. Icy patches
can occur on otherwise clear roads
in shaded areas. The surface of
a curve or an overpass can remain
icy when the surrounding roads
are clear. Avoid sudden steering
maneuvers and braking while on ice.
Turn off cruise control, if equipped,
on slippery surfaces.Blizzard Conditions
Being stuck in snow can be in a
serious situation. Stay with the
vehicle unless there is help nearby.
If possible, use theRoadside
Assistance Program on page 12-6.
To get help and keep everyone
in the vehicle safe:
Turn on theHazard Warning
Flashers on page 4-4.
Tie a red cloth to an outside
mirror.
{CAUTION
Snow can trap engine exhaust
under the vehicle. This may cause
exhaust gases to get inside.
Engine exhaust contains carbon
monoxide (CO) which cannot be
seen or smelled. It can cause
unconsciousness and even death.
If the vehicle is stuck in the snow:
Clear away snow from
around the base of your
vehicle, especially any that is
blocking the exhaust pipe.
Check again from time to
time to be sure snow does
not collect there.
Open a window about
two inches on the side of the
vehicle that is away from the
wind to bring in fresh air.
(Continued)
8-28 Driving and Operating

CAUTION (Continued)
Fully open the air outlets on
or under the instrument panel.
Adjust the Climate Control
system to a setting that
circulates the air inside the
vehicle and set the fan speed
to the highest setting. See
Climate Control System in the
Index.
For more information about carbon
monoxide, seeEngine Exhaust on
page 8-14.
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 exhaustRun the engine for short periods
only as needed to keep warm,
but be careful.
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 8-30.
{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 9-65.
Driving and Operating 8-29

If you put things inside the
vehicle — like suitcases,
tools, packages, or anything
else — they will go as fast as
the vehicle goes. If you have
to stop or turn quickly, or if there
is a crash, they will keep going.
{CAUTION
Things you put inside the
vehicle can strike and injure
people in a sudden stop or
turn, or in a crash.
Put things in the trunk of
your vehicle. In a trunk,
put them as far forward as
you can. Try to spread the
weight evenly.
(Continued)
CAUTION (Continued)
Never stack heavier
things, like suitcases,
inside the vehicle so that
some of them are above
the tops of the seats.
Do not leave an unsecured
child restraint in the
vehicle.
When you carry something
inside the vehicle, secure it
whenever you can.
Do not leave a seat folded
down unless you need to.
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.
The 8th digit of the Vehicle
Identication Number (VIN) shows
the code letter or number that
identies the vehicle’s engine.
The VIN is at the top left of the
instrument panel. SeeVehicle
Identification Number (VIN) on
page 10-1.
8-34 Driving and Operating