heating PONTIAC GRAND AM 1999 User Guide

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5-9
Engine Overheating
You will find a coolant temperature gage and a low
coolant warning light on your vehicle's instrument
panel. See ªEngine Coolant Temperature Gageº and
ªLow Coolant Warning Lightº in the Index.
If Steam Is Coming From Your Engine
CAUTION:
Steam from an overheated engine can burn you
badly, even if you just open the hood. Stay away
from the engine if you see or hear steam coming
from it. Just turn it off and get everyone away
from the vehicle until it cools down. Wait until
there is no sign of steam or coolant before you
open the hood.
If you keep driving when your engine is
overheated, the liquids in it can catch fire. You or
others could be badly burned. Stop your engine if
it overheats, and get out of the vehicle until the
engine is cool.
NOTICE:
If your engine catches fire because you keep
driving with no coolant, your vehicle can be
badly damaged. The costly repairs would not be
covered by your warranty.

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5-13
NOTICE: (Continued)
radiator corrosion may result. In addition, the
engine coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months,
whichever occurs first. Damage caused by the
use of coolant other than DEX
-COOL
is not
covered by your new vehicle warranty.
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 aren't, your vehicle needs service.
How to Add Coolant to the Coolant
Surge Tank
If you haven't found a problem yet, but the coolant level
isn't at or above FULL COLD, add a 50/50 mixture of
clean, drinkable water and 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 ªEngine Coolantº in the Index for
more information.)
CAUTION:
Steam and scalding liquids from a hot cooling
system can blow out and burn you badly. They are
under pressure, and if you turn the coolant surge
tank pressure cap
-- even a little -- they can come
out at high speed. Never turn the cap when the
cooling system, including the coolant surge tank
pressure cap, is hot. Wait for the cooling system
and coolant surge tank pressure cap to cool if you
ever have to turn the pressure cap.

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6-20
Engine Coolant
The cooling system in your vehicle is filled with
DEX
-COOL engine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs first, if you add only
DEX
-COOL extended life coolant.
The following explains your cooling system and how
to add coolant when it is low. If you have a problem
with engine overheating, see ªEngine Overheatingº in
the Index.
A 50/50 mixture of clean, drinkable water and
DEX
-COOL coolant will:

Give freezing protection down to
-34F (-37C).

Give boiling protection up to 265F (129C).

Protect against rust and corrosion.

Help keep the proper engine temperature.

Let the warning lights and gages work as
they should.
NOTICE:
When adding coolant, it is important that you
use only DEX
-COOL (silicate-free) coolant.
If coolant other than DEX-COOL is added to
the system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months,
whichever occurs first. Damage caused by the
use of coolant other than DEX
-COOL is not
covered by your new vehicle warranty.

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6-35
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 Pontiac Warranty booklet for details.
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 ªLoading Your Vehicleº in
the Index.
CAUTION: (Continued)
CAUTION: (Continued)

Underinflated 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.

Overinflated 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.
Inflation -- Tire Pressure
The Tire-Loading Information label, which is on
the rear edge of the driver's door, shows the correct
inflation pressures for your tires when they're cold.
ªColdº means your vehicle has been sitting for at least
three hours or driven no more than 1 mile (1.6 km).

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9-4
Easy Entry Seat 1-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Equipment, Adding 2-17, 2-18, 3-19, 6-54 . . . . . .
Electrical System 6-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine 6-10, 6-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant 6-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Heater 2-18, 2-19 . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Level Check 7-13 . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Temperature Gage 2-55 . . . . . . . . . . . . . . . . . . . . .
Exhaust 2-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Block 6-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identification 6-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Level Check 7-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overheating 5-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Running While Parked 2-28 . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 6-60, 6-61 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Your 2-16, 2-17 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Coolant 6-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Coolant Temperature Gage 2-55 . . . . . . . . . . . . . . . . .
Engine Oil 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding 6-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additives 6-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking 6-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Used 6-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What To Use 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
When to Change 6-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Oil Life Monitor 6-17 . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Overheating 5-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Enhanced Traction System Active Light 2-54, 4-9 . . . . . . . . .
Enhanced Traction System Warning Light 2-53, 4-9 . . . . . . .
Ethanol 6-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ETS (Enhanced Traction System) 4
-8 . . . . . . . . . . . . . . . . . . .
Active Light 2-54, 4-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 4-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning Light 2-53, 4-9 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust, Engine 2-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior Lamps 2-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior Lamps/Lenses, Cleaning 6-49 . . . . . . . . . . . . . . . . . .
Fabric Cleaning 6-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filling a Portable Fuel Container 6-7 . . . . . . . . . . . . . . . . . . . .
Filling Your Tank 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filter, Air 6-18, 6-61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finish Care 6-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finish Damage 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
First Gear, Automatic Transaxle 2-23 . . . . . . . . . . . . . . . . . . .
Flashers, Hazard Warning 5-2 . . . . . . . . . . . . . . . . . . . . . . . . .
Flat Tire, Changing 5-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluids and Lubricants 7-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fog Lamps 2-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign Countries, Fuel 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
French Language Manual ii. . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Reading Lamps 2
-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel 6-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filling a Portable Container 6-7 . . . . . . . . . . . . . . . . . . . . . .
Filling Your Tank 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gage 2-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In Foreign Countries 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuses and Circuit Breakers 6-54 . . . . . . . . . . . . . . . . . . . . . . .

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9-7
Maintenance, Normal Replacement Parts 6-61 . . . . . . . . . . .
Maintenance Record 7-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance Schedule 7-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Owner Checks and Services 7-13 . . . . . . . . . . . . . . . . . . . . .
Periodic Maintenance Inspections 7-17 . . . . . . . . . . . . . . . .
Recommended Fluids and Lubricants 7-19 . . . . . . . . . . . . .
Scheduled Maintenance Services 7-4 . . . . . . . . . . . . . . . . . .
Maintenance, Underbody 6-51 . . . . . . . . . . . . . . . . . . . . . . . . .
Malfunction Indicator Lamp 2-57 . . . . . . . . . . . . . . . . . . . . . .
Manual Front Seat 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Lumbar Support 1-4 . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Remote Control Mirror 2-43 . . . . . . . . . . . . . . . . . . . .
Methanol 6-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mirrors 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Convex Outside 2-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside Day/Night Rearview 2-42 . . . . . . . . . . . . . . . . . . . . .
Manual Remote Control 2-43 . . . . . . . . . . . . . . . . . . . . . . . .
Power Remote Control 2-43 . . . . . . . . . . . . . . . . . . . . . . . . .
Monitor, Engine Oil Life 6-17 . . . . . . . . . . . . . . . . . . . . . . . . .
Monitor, Oil Life 6-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mountain Roads 4-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multifunction Lever 2-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Neutral, Automatic Transaxle 2-21 . . . . . . . . . . . . . . . . . . . .
New Vehicle ªBreak-Inº 2-15 . . . . . . . . . . . . . . . . . . . . . . . . .
Night Vision 4-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Odometer 2-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Odometer, Trip 2-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Off-Road Recovery 4-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil, Engine 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Life Monitor 6-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pressure Light 2-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overdrive, Automatic Transaxle 2-22 . . . . . . . . . . . . . . . . . . .
Overheating Engine 5-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Owner Checks and Services 7-13 . . . . . . . . . . . . . . . . . . . . . . .
Owner Publications, Ordering 8-13 . . . . . . . . . . . . . . . . . . . . .
Paint Spotting, Chemical 6-57 . . . . . . . . . . . . . . . . . . . . . . . .
Park
Automatic Transaxle 2
-20 . . . . . . . . . . . . . . . . . . . . . . . . . .
Shifting Into 2-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shifting Out of 2-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking
At Night 2
-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake 2-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Mechanism Check 7-16 . . . . . . . . . . . . . . . . . . . . . . .
Lots 2-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over Things That Burn 2-27 . . . . . . . . . . . . . . . . . . . . . . . .
Passenger Position 1-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Passing 4-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
With a Trailer 4-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Passlock
2-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Periodic Maintenance Inspections 7-17 . . . . . . . . . . . . . . . . . .