Engines PONTIAC G6 2009 Owners Manual

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

Service............................................................5-4
Accessories and Modications..........................5-4
California Proposition 65 Warning.....................5-5
California Perchlorate Materials Requirements.....5-5
Doing Your Own Service Work.........................5-5
Adding Equipment to the Outside of the
Vehicle......................................................5-6
Fuel................................................................5-6
Gasoline Octane............................................5-7
Gasoline Specications....................................5-7
California Fuel...............................................5-7
Additives.......................................................5-8
Fuel E85 (85% Ethanol)..................................5-8
Fuels in Foreign Countries...............................5-9
Filling the Tank............................................5-10
Filling a Portable Fuel Container.....................5-12
Checking Things Under the Hood....................5-12
Hood Release..............................................5-13
Engine Compartment Overview.......................5-14
Engine Oil...................................................5-21
Engine Oil Life System..................................5-24
Engine Air Cleaner/Filter
(3.5 L V6 Engine)......................................5-26Engine Air Cleaner/Filter (All Other Engines).....5-27
Automatic Transmission Fluid
(2.4L L4, 3.5L and 3.6L V6 Engines)............5-29
Automatic Transmission Fluid
(3.9L Engine)............................................5-29
Cooling System............................................5-32
Engine Coolant.............................................5-33
Pressure Cap...............................................5-37
Engine Overheating.......................................5-37
Overheated Engine Protection
Operating Mode........................................5-39
Power Steering Fluid.....................................5-39
Windshield Washer Fluid................................5-40
Brakes........................................................5-42
Battery........................................................5-45
Jump Starting...............................................5-46
Headlamp Aiming...........................................5-51
Bulb Replacement..........................................5-51
Halogen Bulbs..............................................5-51
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps....................................5-52
Center High-Mounted Stoplamp (CHMSL)
(Sedan)...................................................5-53
Section 5 Service and Appearance Care
5-1

If doing some of your own service work, use the proper
service manual. It tells you much more about how to
service the vehicle than this manual can. To order
the proper service manual, seeService Publications
Ordering Information on page 7-15.
This vehicle has an airbag system. Before attempting to
do your own service work, seeServicing Your
Airbag-Equipped Vehicle on page 1-74.
Keep a record with all parts receipts and list the mileage
and the date of any service work performed. See
Maintenance Record on page 6-17.
Adding Equipment to the Outside of
the Vehicle
Things added to the outside of the vehicle can affect the
airow around it. This can cause wind noise and can
affect fuel economy and windshield washer performance.
Check with your dealer/retailer before adding equipment
to the outside of the vehicle.
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 5-108.
If the vehicle has the 3.5L V6 engine (VIN Code K),
you can use either unleaded gasoline or ethanol fuel
containing up to 85% ethanol (E85). SeeFuel E85
(85% Ethanol) on page 5-8. In all other engines, use
only the unleaded gasoline described underGasoline
Octane on page 5-7.
5-6

Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that help prevent
engine and fuel system deposits from forming, allowing
the emission control system to work properly. In most
cases, you should not have to add anything to the fuel.
However, some gasolines contain only the minimum
amount of additive required to meet U.S. Environmental
Protection Agency regulations. To help keep fuel injectors
and intake valves clean, or if the vehicle experiences
problems due to dirty injectors or valves, look for gasoline
that is advertised as TOP TIER Detergent Gasoline. Also,
your dealer/retailer has additives that will help correct and
prevent most deposit-related problems.
Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines might be available in
your area. We recommend that you use these gasolines,
if they comply with the specications described earlier.
However, E85 (85% ethanol) and other fuels containing
more than 10% ethanol must not be used in vehicles that
were not designed for those fuels.
Notice:This vehicle was not designed for fuel that
contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in the fuel
system and also damage plastic and rubber parts.
That damage would not be covered under the
vehicle warranty.Some gasolines that are not reformulated for low
emissions can contain an octane-enhancing additive
called methylcyclopentadienyl manganese tricarbonyl
(MMT); ask the attendant where you buy gasoline
whether the fuel contains MMT. We recommend against
the use of such gasolines. Fuels containing MMT can
reduce the life of spark plugs and the performance of the
emission control system could be affected. The
malfunction indicator lamp might turn on. If this occurs,
return to your dealer/retailer for service.
Fuel E85 (85% Ethanol)
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 5-108.
If the vehicle has the 3.5L V6 engine (VIN Code K),
you can use either unleaded gasoline or ethanol fuel
containing up to 85% ethanol (E85). SeeFuel on
page 5-6. In all other engines, use only the unleaded
gasoline described underGasoline Octane on page 5-7.
Only vehicles that have the 3.5L V6 engine (VIN Code K)
can use 85% ethanol fuel (E85). We encourage the use
of E85 in vehicles that are designed to use it. The ethanol
in E85 is a “renewable” fuel, meaning it is made from
renewable sources such as corn and other crops.
5-8

A.Engine Air Cleaner/Filter (3.5 L V6 Engine) on
page 5-26orEngine Air Cleaner/Filter (All Other
Engines) on page 5-27.
B. Engine Cooling Fan. SeeCooling System on
page 5-32.
C. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-21.
D. Engine Oil Dipstick (Out of View). See “Checking
Engine Oil” underEngine Oil on page 5-21.
E. Engine Coolant Surge Tank. SeeEngine Coolant
on page 5-33.F. Pressure Cap. SeeCooling System on page 5-32.
G. Brake Master Cylinder Reservoir. See “Brake
Fluid” underBrakes on page 5-42.
H.Battery on page 5-45.
I. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 5-40.
J.Engine Compartment Fuse Block on page 5-112.
5-15

A.Engine Air Cleaner/Filter (3.5 L V6 Engine) on
page 5-26orEngine Air Cleaner/Filter (All Other
Engines) on page 5-27.
B.Power Steering Fluid on page 5-39.
C. Engine Cooling Fan. SeeCooling System on
page 5-32.
D. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-21.
E. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-21.
F. Engine Coolant Surge Tank. SeeEngine Coolant
on page 5-33.G. Pressure Cap. SeeCooling System on page 5-32.
H. Brake Master Cylinder Reservoir. See “Brake
Fluid” underBrakes on page 5-42.
I.Battery on page 5-45.
J. SeeEngine Compartment Fuse Block on
page 5-112.
K. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 5-40.
5-17

A.Engine Air Cleaner/Filter (3.5 L V6 Engine) on
page 5-26orEngine Air Cleaner/Filter (All Other
Engines) on page 5-27.
B.Power Steering Fluid on page 5-39.
C. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-21.
D. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-21.
E. Electric Engine Cooling Fans (Out of View).
SeeCooling System on page 5-32.
F. Engine Coolant Surge Tank. SeeEngine Coolant on
page 5-33.
G. Pressure Cap. SeeCooling System on page 5-32.H. Brake Master Cylinder Reservoir. See “Brake Fluid”
underBrakes on page 5-42.
I. Automatic Transmission Fluid Cap/Dipstick.
See “Checking the Fluid Level” underAutomatic
Transmission Fluid (2.4L L4, 3.5L and 3.6L V6
Engines) on page 5-29orAutomatic Transmission
Fluid (3.9L Engine) on page 5-29.
J.Battery on page 5-45.
K. Underhood Fuse Block. SeeEngine Compartment
Fuse Block on page 5-112.
L. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 5-40.
5-19

A.Engine Air Cleaner/Filter (3.5 L V6 Engine) on
page 5-26orEngine Air Cleaner/Filter (All Other
Engines) on page 5-27.
B. Engine Coolant Bleed Valve.
C.Power Steering Fluid on page 5-39.
D. Automatic Transmission Fluid Dipstick (Out of View).
See “Checking the Fluid Level” underAutomatic
Transmission Fluid (2.4L L4, 3.5L and 3.6L V6
Engines) on page 5-29orAutomatic Transmission
Fluid (3.9L Engine) on page 5-29.
E. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-21.
F. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-21.
G. Engine Coolant Surge Tank. SeeEngine Coolant on
page 5-33.
H. Pressure Cap. SeeCooling System on page 5-32.
I. Brake Master Cylinder Reservoir. See “Brake
Fluid” underBrakes on page 5-42.
J.Battery on page 5-45.
K. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 5-40.
L.Engine Compartment Fuse Block on page 5-112.Engine Oil
Checking Engine Oil
It is a good idea to check the engine oil every time you
get fuel. In order to get an accurate reading, the oil
must be warm and the vehicle must be on level ground.
The engine oil dipstick handle is a yellow loop. See
Engine Compartment Overview on page 5-14for
the location of the engine oil dipstick.
1. Turn off the engine and give the oil several minutes
to drain back into the oil pan. If you do not do this,
the oil dipstick might not show the actual level.
2. Pull the dipstick and clean it with a paper towel or
cloth, then push it back in all the way. Remove it
again, keeping the tip down and check the level.
5-21

What Kind of Engine Oil to Use
Look for three things:
GM6094M
Use only an oil that meets GM Standard GM6094M.
SAE 5W-30
SAE 5W-30 is best for the vehicle. These numbers
on an oil container show its viscosity, or thickness.
Do not use other viscosity oils such as SAE 20W-50.
American Petroleum Institute (API) starburst symbol
Oils meeting these
requirements should have
the starburst symbol on
the container. This symbol
indicates that the oil
has been certied by the
American Petroleum
Institute (API).
Notice:Use only engine oil identied as meeting
GM Standard GM6094M and showing the American
Petroleum Institute Certied For Gasoline Engines
starburst symbol. Failure to use the recommended
oil can result in engine damage not covered by
the vehicle warranty.
5-23

3. Lift off the cover.
4. Inspect or replace the engine air cleaner/lter.
5. Reverse Steps 1 through 3 to reinstall the cover and
reconnect the electrical connector.
{CAUTION:
Operating the engine with the air cleaner/lter off
can cause you or others to be burned. The air
cleaner not only cleans the air; it helps to stop
ames if the engine backres. If it is not there and
the engine backres, you could be burned. Do not
drive with it off, and be careful working on the
engine with the air cleaner/lter off.
Notice:If the air cleaner/lter is off, a backre can
cause a damaging engine re. And, dirt can easily get
into the engine, which will damage it. Always have
the air cleaner/lter in place when you are driving.
Engine Air Cleaner/Filter (All Other
Engines)
SeeEngine Compartment Overview on page 5-14for
the location of the engine air cleaner/lter.
5-27