2005 PONTIAC GRAND AM coolant level

Climate Controls
Climate Control System
With this system you can control the heating, cooling
and ventilation for your vehicle.
Operation
To change the current mode, select one of the following:
HMAX:This mode is used for maximum cooling. It
will recirculate much of the air inside your vehicle.
It maximizes your air conditioner’s performance and your
vehicle’s fuel economy. The air-conditioning compressor
will run automatically in this mode when it is needed
to help dry the air in the vehicle.
H(Vent):This mode directs air to the instrument
panel outlets.
)(Bi-Level):This mode directs half of the air to the
instrument panel outlets, then directs most of the
remaining air to the floor outlets with some air directed
at the side windows.
A(Floor):This mode directs most of the air to the
floor outlets with some air directed to the side windows.
The right knob can also be used to select defog or
defrost modes. Information on defogging and defrosting
can be found later in this section.
9(Fan):Turn the left knob clockwise or
counterclockwise to increase or decrease the fan speed.
Temperature Control:Turn the center knob clockwise
or counterclockwise to manually increase or decrease
the temperature inside your vehicle.
When it’s cold outside 0°F (−18°C) or lower, use the
engine coolant heater, if equipped, to provide warmer air
faster to your vehicle. An engine coolant heater warms
the coolant that the engine uses to provide heat to
warm the inside of your vehicle. For more information,
seeEngine Coolant Heater on page 2-19.
3-19

Low Coolant Warning Light
This light comes on briefly
when you turn your
ignition on.
If this light comes on and stays on and you hear a
chime, the coolant level in your vehicle is low.
SeeEngine Coolant on page 5-22. If the light is on
along with an overheat warning, you may have a serious
overheating problem. SeeEngine Coolant Temperature
Gage on page 3-29.
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.
SeeEngine Overheating on page 5-24for information
on what to do.
Your vehicle should be serviced as soon as possible.
Malfunction Indicator Lamp
Service Engine Soon Light in the
United States or Check Engine Light in
Canada
Your vehicle is equipped with a computer which
monitors operation of the fuel, ignition, and emission
control systems.
United StatesCanada
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A. Engine Coolant Surge Tank. SeeCooling System on
page 5-26.
B. Power Steering Fluid Reservoir. SeePower Steering
Fluid on page 5-31.
C. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-15.
D. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-15.
E. Brake Fluid Reservoir. See “Brake Fluid” under
Brakes on page 5-33.
F. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-20.
G. Battery. SeeBattery on page 5-36.
H. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 5-32.Engine Oil
Checking Engine Oil
It is a good idea to check your 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 5-12for
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 out 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.
5-15

If you have to add coolant more than four times a year,
have your dealer check your cooling system.
Notice:If you use the proper coolant, you do not
have to add extra inhibitors or additives which claim
to improve the system. These can be harmful.
Checking Coolant
The coolant surge tank is located in the engine
compartment on the passenger’s side of the vehicle. See
Engine Compartment Overview on page 5-12for more
information on location.
{CAUTION:
Turning the surge tank pressure cap when the
engine and radiator are hot can allow steam
and scalding liquids to blow out and burn you
badly. Never turn the surge tank pressure
cap — even a little — when the engine and
radiator are hot.
The vehicle must be on a level surface. When your
engine is cold, the coolant level should be at the hash
mark, or a little higher.
If the LOW COOLANT light
comes on and stays on, it
means you are low on
engine coolant.
SeeLow Coolant Warning Light on page 3-30. 2.2L L4 ECOTEC™ engine shown, 3400 V6 engine
similar
5-23

Cooling System
When you decide it is safe to lift the hood, here is what
you will see:
A. Coolant Surge Tank with Pressure Cap
B. Electric Engine Cooling Fans{CAUTION:
An electric engine cooling fan under the hood
can start up even when the engine is not
running and can injure you. Keep hands,
clothing and tools away from any underhood
electric fan.
If the coolant inside the coolant surge tank is boiling, do
not do anything else until it cools down. The vehicle
should be parked on a level surface.
The coolant level should be at or above the hash mark on
the label. If it is not, you may have a leak at the pressure
cap or in the radiator hoses, heater hoses, radiator, water
pump or somewhere else in the cooling system.
2.2L L4 Engine shown, 3400 V6 Engine similar
5-26

{CAUTION:
Heater and radiator hoses, and other engine
parts, can be very hot. Do not touch them. If
you do, you can be burned.
Do not run the engine if there is a leak. If you
run the engine, it could lose all coolant. That
could cause an engine re, and you could be
burned. Get any leak xed before you drive the
vehicle.
If there seems to be no leak, with the engine on, check
to see if the electric engine cooling fans are running.
If the engine is overheating, both fans should be
running. If they are not, your vehicle needs service.
Notice:If you operate the engine without coolant
or fail to maintain the cooling system properly,
you could damage the engine. The repairs would not
be covered by your warranty. Always follow the
maintenance schedule in this manual for
maintaining your cooling system. SeeCooling
System on page 5-26for more information.Notice:Using coolant other than DEX-COOL
®may
cause premature engine, heater core or radiator
corrosion. In addition, the engine coolant may
require changing sooner, at 30,000 miles (50 000 km)
or 24 months, whichever occurs rst. Any repairs
would not be covered by your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your vehicle.
How to Add Coolant to the Coolant
Surge Tank
Notice:This vehicle has a specic coolant ll
procedure. Failure to follow this procedure could
cause your engine to overheat and be severely
damaged.
If you have not found a problem yet, check to see if
coolant is visible in the surge tank. If coolant is visible
but the coolant level is not at or above the hash
mark, add a 50/50 mixture ofclean, drinkable waterand
DEX-COOL
®coolant at the coolant surge tank, but
be sure the cooling system, including the coolant surge
tank pressure cap, is cool before you do it. See
Engine Coolant on page 5-22for more information.
5-27

3. Fill the coolant surge tank with the proper mixture, to
the hash mark on the label. Wait about five minutes,
then check to see if the level is below the hash mark.
If the level is below the hash mark, add additional
coolant to bring the level up to the hash mark.
Repeat this procedure until the level remains
constant at the hash mark for at least five minutes.4. With the coolant surge tank pressure cap off, start
the engine and let it run until you can feel the upper
radiator hose getting hot. Watch out for the
engine cooling fans.
By this time, the coolant level inside the coolant
surge tank may be lower. If the level is lower than
the hash mark, add more of the proper mixture
to the coolant surge tank until the level reaches the
hash mark.
5. Replace the pressure cap. Be sure the pressure
cap is hand-tight and fully seated.
See your dealer, if necessary.
5-30

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and filter. SeeEngine Oil on page 5-15. Reset oil life
system. SeeEngine Oil Life System on page 5-18.An Emission Control
Service.••
Visually check for any leaks or damage.See footnote (j).••
Inspect engine air cleaner filter. If necessary, replace filter. SeeEngine Air
Cleaner/Filter on page 5-20.An Emission Control Service. See footnotes †
and (k).•
Rotate tires and check inflation pressures and wear. SeeTires on page 5-46.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer fluid levels and add fluid as
needed.••
Perform any needed additional services. See “Additional Required Services” in
this section.••
Inspect suspension and steering components.See footnote (b).•
Inspect engine cooling system.See footnote (c).•
Inspect wiper blades.See footnote (d).•
Inspect restraint system components.See footnote (e).•
Lubricate body components.See footnote (f).•
Inspect throttle system.See footnote (g).•
6-5