2004 PONTIAC GTO heating

Adding Coolant
If you need more coolant, add the proper DEX-COOL®
coolant mixtureat the surge tank, but only when the
engine is cool.
{CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
and it will burn if the engine parts are hot
enough. Do not spill coolant on a hot engine.
When the level is correct, replace the cap and turn
clockwise until secure.
Engine Overheating
Immediate action is required if your engine overheats.
This is indicated by the coolant temperature gage
and the Engine Temp Hot message on the trip computer
display.Engine Coolant Temperature Gage on
page 3-28.
If Steam Is Coming From Your Engine
5-28

The coolant level should be at or above the COLD FILL
mark. If it isn’t, 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.
{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 fan is running. If
the engine is overheating, the fan should be running.
If it isn’t, 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 5-31for 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.
5-32

Tires
Your new vehicle comes with high-quality tires made by
a leading tire manufacturer. If you ever have questions
about your tire warranty and where to obtain service,
see your GM Warranty booklet for details. For additional
information refer to the tire manufacturer’s booklet
included with your vehicle’s Owner’s Manual.
{CAUTION:
Poorly maintained and improperly used tires
are dangerous.
Overloading your tires can cause
overheating as a result of too much
friction. You could have an air-out and a
serious accident. See “Loading Your
Vehicle” in the Index.
Underinated tires pose the same danger
as overloaded tires. The resulting accident
could cause serious injury. Check all tires
frequently to maintain the recommended
pressure. Tire pressure should be checked
when your tires are cold.
CAUTION: (Continued)
CAUTION: (Continued)

Overinated tires are more likely to be
cut, punctured or broken by a sudden
impact — such as when you hit a pothole.
Keep tires at the recommended pressure.
Worn, old tires can cause accidents. If
your tread is badly worn, or if your tires
have been damaged, replace them.
Notice:If your vehicle has low-prole tires, they
are more susceptible to damage from road hazards
or curb impact than standard prole tires. Tire
and or wheel assembly damage can occur when
coming into contact with road hazards like, potholes
or sharp edged objects or when sliding into a
curb. Your GM warranty does not cover this type of
damage. Keep tires set to the correct ination
pressure and, when possible avoid contact with
curbs, potholes and other road hazards.
5-51

E
Electrical System
Add-On Equipment......................................5-87
Fuses and Circuit Breakers...........................5-87
Emergency Trunk Release Handle.....................2-10
Emissions Inspection and Maintenance
Programs...................................................3-31
Engine
Air Cleaner/Filter.........................................5-18
Battery.......................................................5-41
Change Engine Oil Light...............................3-33
Check and Service Engine Soon Light............3-29
Coolant......................................................5-25
Coolant Temperature Gage...........................3-28
Drive Belt Routing.......................................6-16
Engine Compartment Overview......................5-12
Exhaust.....................................................2-27
Oil .............................................................5-13
Overheating................................................5-28
Starting......................................................2-17
Engine Compartment Fuse Block......................5-90
Engine Oil Additives........................................5-16
Entering Programming Mode............................2-33
Entry Lighting.................................................3-15
Event Data Recorders (EDR)............................. 7-9
EXIT OPTIONS MENU....................................2-37Exiting Programming Mode...............................2-37
Express-Down Window....................................2-12
Extender, Safety Belt.......................................1-25
Exterior Lamps...............................................3-12
F
Filter
Engine Air Cleaner......................................5-18
Finding a Station............................................3-43
Finish Care....................................................5-82
Finish Damage...............................................5-84
Flash-to-Pass Feature....................................... 3-7
Flat Tire........................................................5-70
Flat Tire, Changing.........................................5-71
Fluid
Automatic Transmission................................5-19
Manual Transmission....................................5-23
Power Steering...........................................5-36
Windshield Washer......................................5-37
FM ...............................................................3-54
Fog Lamp Light..............................................3-33
Fog Lamps....................................................3-14
Front Reading Lamps......................................3-16
Front Storage Area.........................................2-31
5