engine PONTIAC G6 2009 User Guide

Starting the Engine
Move the shift lever to P (Park) or N (Neutral).
The engine will not start in any other position.
To restart the engine when the vehicle is already
moving, use N (Neutral) only.
Notice:Do not try to shift to P (Park) if the
vehicle is moving. If you do, you could damage
the transmission. Shift to P (Park) only when the
vehicle is stopped.
Starting Procedure
1. With your foot off the accelerator pedal, turn the
ignition to START. When the engine starts, let go of
the key. The idle speed will slow down as the engine
warms. Do not race the engine immediately after
starting it. Operate the engine and transmission
gently to allow the oil to warm up and lubricate
all moving parts.The vehicle has a Computer-Controlled Cranking
System. This feature assists in starting the engine
and protects components. If the ignition key is turned
to the START position, and then released when the
engine begins cranking, the engine will continue
cranking for a few seconds or until the vehicle starts.
If the engine does not start and the key is held in
START, cranking will be stopped after 15 seconds
to prevent cranking motor damage. To prevent gear
damage, this system also prevents cranking if the
engine is already running. Engine cranking can
be stopped by turning the ignition switch to the
ACC/ACCESSORY or LOCK/OFF position.
Notice:Cranking the engine for long periods of
time, by returning the key to the START position
immediately after cranking has ended, can overheat
and damage the cranking motor, and drain the
battery. Wait at least 15 seconds between each
try, to let the cranking motor cool down.
2-23

2. If the engine does not start after 5-10 seconds,
especially in very cold weather (below 0°F or−18°C),
it could be ooded with too much gasoline. Try
pushing the accelerator pedal all the way to the oor
and holding it there as you hold the key in START
for up to a maximum of 15 seconds. Wait at least
15 seconds between each try, to allow the cranking
motor to cool down. When the engine starts, let go of
the key and accelerator. If the vehicle starts briey
but then stops again, repeat these steps. This clears
the extra gasoline from the engine. Do not race the
engine immediately after starting it. Operate the
engine and transmission gently until the oil warms
up and lubricates all moving parts.
Notice:The engine is designed to work with the
electronics in the vehicle. If you add electrical parts
or accessories, you could change the way the
engine operates. Before adding electrical equipment,
check with your dealer/retailer. If you do not, the
engine might not perform properly. Any resulting
damage would not be covered by the vehicle
warranty.Engine Coolant Heater
The engine coolant heater can provide easier starting
and better fuel economy during engine warm-up in cold
weather conditions at or below 0°F (−18°C). Vehicle
with an engine coolant heater should be plugged in at
least four hours before starting. An internal thermostat in
the plug-end of the cord may exist which will prevent
engine coolant heater operation at temperatures above
0°F (−18°C).
2-24

To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord. On
the 2.4L L4 ECOTEC
®engine, the engine coolant
heater cord is located near the air cleaner box on the
passenger’ side of the engine compartment. On the
3.5L, 3.6L and 3.9L V6 engines, the engine coolant
heater cord is located on the driver side around the
battery box. SeeEngine Compartment Overview on
page 5-14for more information on location.
3. Plug the cord into a normal, grounded 110-volt AC
outlet.
{CAUTION:
Plugging the cord into an ungrounded outlet could
cause an electrical shock. Also, the wrong kind of
extension cord could overheat and cause a re.
You could be seriously injured. Plug the cord into a
properly grounded three-prong 110-volt AC outlet.
If the cord will not reach, use a heavy-duty
three-prong extension cord rated for at least
15 amps.
4. Before starting the engine, be sure to unplug and
store the cord as it was before to keep it away
from moving engine parts and prevent damage.
The length of time the heater should remain plugged
in depends on several factors. Ask a dealer/retailer
in the area where you will be parking your vehicle
for the best advice in this.
2-25

Automatic Transmission Operation
The vehicle will have one of these styles of shifter
located in the center console between the seats.
P (Park):This position locks your front wheels.
It is the best position to use when you start the
engine because your vehicle cannot move easily.{CAUTION:
It is dangerous to get out of the vehicle if the 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). SeeShifting Into
Park on page 2-32. If you are pulling a trailer, see
Towing a Trailer on page 4-30.
Make sure the shift lever is fully in P (Park) before
starting the engine. The vehicle has an automatic
transmission shift lock control system. You must apply
the regular brake rst, then press the shift lever button
before you can shift from P (Park) while the ignition key
is in ON/RUN. If you cannot shift out of P (Park), ease
pressure on the shift lever and push the shift lever all the
way into P (Park) as you maintain brake application.
2-26

Press the shift lever button and then move the shift lever
into another gear. SeeShifting Out of Park on page 2-34
later in this section.
R (Reverse):Use this gear to back up.
Notice:Shifting to R (Reverse) while the vehicle is
moving forward could damage the transmission.
The repairs would not be covered by the vehicle
warranty. Shift to R (Reverse) only after the vehicle
is stopped.
To rock the vehicle back and forth to get out of snow,
ice, or sand without damaging the transmission, seeIf
Your Vehicle is Stuck in Sand, Mud, Ice, or Snow on
page 4-19.
N (Neutral):In this position, the engine does not
connect with the wheels. To restart the engine when
the vehicle is already moving, use N (Neutral) only.
Also, use N (Neutral) when the vehicle is being towed.
{CAUTION:
Shifting into a drive gear while the engine is
running at high speed is dangerous. Unless your
foot is rmly on the brake pedal, the vehicle could
move very rapidly. You could lose control and hit
people or objects. Do not shift into a drive gear
while the engine is running at high speed.
Notice:Shifting out of P (Park) or N (Neutral) with
the engine running at high speed may damage the
transmission. The repairs would not be covered
by the vehicle warranty. Be sure the engine is not
running at high speed when shifting the vehicle.
D (Drive):This position is for normal driving. It provides
the best fuel economy. If you need more power for
passing, and you are:
Going less than 35 mph (55 km/h), push the
accelerator pedal about halfway down.
Going about 35 mph (55 km/h) or more, push the
accelerator all the way down.
2-27

Manual Shift Mode (MSM)
To use this feature,
1. Move the shift lever from D (Drive) rearward and
then to the right into the M (Manual Mode).
While driving in manual mode, the transmission will
remain in the driver selected gear.
2. Press the shift lever forward to upshift or rearward
to downshift.
The odometer display on the instrument panel
cluster will change from vehicle mileage to the letter M,
for manual shift mode, and a number indicating the
requested gear range when moving the shift lever
forward or rearward. SeeSpeedometer and Odometer
on page 3-30for more information.
While using the MSM feature the vehicle will have rmer
shifting and sportier performance. You can use this for
sport driving or when climbing hills to stay in gear longer
or to downshift for more power or engine braking.The transmission will only allow you to shift into gears
appropriate for the vehicle speed and engine revolutions
per minute (RPM):
The transmission will not shift to the next higher
gear if the engine RPM is too low.
The transmission will not allow shifting to the next
lower gear if the engine RPM is too high.
If the vehicle does not respond to a gear change,
or detects a problem with the transmission, the range
of gears may be reduced and the Malfunction Indicator
Lamp will come on. SeeMalfunction Indicator Lamp
on page 3-38for more information.
2-29

Driver Shift Control (DSC)
To use this feature,
1. Move the shift lever from DRIVE (D) rearward to
MANUAL (M).
While driving in manual mode, the transmission
will remain in the driver selected gear. When coming
to a stop in the manual position, the vehicle will
automatically shift into FIRST (1) gear.
2. Press the + (plus) paddle located on top of
the steering wheel controls forward to upshift,
or push the backside of the shift paddle rearward
to downshift.The Driver Information Center (DIC) in the instrument
cluster will change from the currently displayed message
to the letter “M”, For MANUAL position, and a number
indicating the requested gear range when moving
the shift lever forward or rearward.
While using the DSC feature the transmission will have
rmer shifting and sportier performance. You can use
this for sport driving or when climbing hills to stay in gear
longer or to downshift for more power or engine braking.
The transmission will only allow you to shift into gears
appropriate for the vehicle speed and engine revolutions
per minute (RPM):
The transmission will not automatically shift to the
next higher gear if the vehicle speed or engine
RPM is too high.
The transmission will not allow shifting to the next
lower gear if the vehicle speed or engine RPM is
too high.
2-30

2 (Second)/3 (Third) Gear Start Feature
Notice:If you attempt a third gear start while
trailering or towing a heavy load, you will notice
reduced engine power. This could overheat and
damage your transmission. Do not attempt a third
gear start while trailering or towing your vehicle.
Vehicles with a 6-speed transmission allow 2 (Second)
and 3 (Third) gear starts. When accelerating the vehicle
from a stop in snowy and icy conditions, you may want to
shift into 2 (Second), or 3 (Third) gear. A higher gear, and
light application of the gas pedal, may allow you to gain
more traction on slippery surfaces.
With the MSM, the vehicle can accelerate from a stop in
2 (Second) or 3 (Third).
1. Move the shift lever from D (Drive) into the
M (Manual Mode) position.
2. With the vehicle stopped, move the lever forward
towards the + (plus) to select 2 (Second) or 3 (Third)
gear. The vehicle will start from a stop position in
2 (Second) or 3 (Third) gear.
3. Once the vehicle is moving select the desired
drive gear.
Parking Brake
To set the parking brake, pull up on the parking brake
handle. If the ignition is on, the brake system warning
light will come on. SeeBrake System Warning Light
on page 3-34. GT and GTP Shown, SE Similar
2-31

To release the parking brake:
1. Hold the brake pedal down.
2. Pull the parking brake handle up until you can
press the release button.
3. Hold the release button in as you move the brake
handle all the way down.
Notice:Driving with the parking brake on can
overheat the brake system and cause premature
wear or damage to brake system parts. Make sure
that the parking brake is fully released and the brake
warning light is off before driving.
If you are towing a trailer and you are parking on a hill,
seeTowing a Trailer on page 4-30.Shifting Into Park
{CAUTION:
It can be dangerous to get out of the vehicle if
the shift lever is not fully in P (Park) with the parking
brake rmly set. The vehicle can roll. 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, use the steps that follow. If you are
pulling a trailer, seeTowing a Trailer on page 4-30.
1. Hold the brake pedal down and set the parking
brake. SeeParking Brake on page 2-31for more
information.
2. Move the shift lever into P (Park) by holding in the
button on the shift lever and pushing the shift lever
all the way toward the front of the vehicle.
3. Turn the ignition key to LOCK/OFF.
4. Remove the key and take it with you. If you can
leave the vehicle with the ignition key in your
hand, the vehicle is in P (Park).
2-32

Leaving the Vehicle with the Engine
Running
{CAUTION:
It can be dangerous to leave the vehicle with the
engine running. The vehicle could move suddenly if
the shift lever is not fully in P (Park) with the parking
brake rmly set. And, if you leave the vehicle with
the engine running, it could overheat and even
catch re. You or others could be injured. Do not
leave the vehicle with the engine running.
If you have to leave the vehicle with the engine running,
be sure the vehicle is in P (Park) and the parking brake is
rmly set before you leave it. After you have moved theshift lever into P (Park), hold the regular brake pedal
down. Then, see if you can move the shift lever away
from P (Park) without rst pushing the button.
If you can, it means that the shift lever was not fully
locked in P (Park).
Torque Lock
Torque lock is when the weight of the vehicle puts
too much force on the parking pawl in the transmission.
This happens when parking on a hill and shifting the
transmission into P (Park) is not done properly and then it
is difficult to shift out of P (Park). To prevent torque lock,
set the parking brake and then shift into P (Park). To nd
out how, see “Shifting Into Park” listed previously.
If torque lock does occur, your vehicle may need to be
pushed uphill by another vehicle to relieve the parking
pawl pressure, so you can shift out of P (Park).
2-33