Geo PRIZM 1993 Manual page 195

If your engine catches
fue
because
you keep driving with
no
coolant,
your
vehicle can be badly
damaged. The costly repairs would
not be covered by your warranty.
If No Steam Is Coming from Your
Engine:
If you get the overheat warning but see
or hear no steam, the problem may not
be too serious. Sometimes the engine
can get a little too hot when you:
Climb a long hill on a hot day.
I
Stop after high speed driving.
Idle for long periods in traffic.
Tow a trailer.
If you get the overheat warning with no
sign of steam, try this for a minute or
1
.
If
you
have an air conditioner, turn it
2. Turn on your heater to full hot at the
so:
off.
highest fan speed and open the
window as necessary.
3. Try to keep your engine under load
(in a drive gear where the engine
runs slower).
If you no longer have the overheat
warning, you can drive. Just to be safe,
drive slower for about ten minutes. If
the warning doesn't come back
on,
you
can drive normally.
If the warning continues, pull over,
stop, and park your vehicle right away.
If there's still no sign of steam, you can
idle the engine for two or three minutes
while you're parked, to see if the
warning stops. But then, if you still havc
the warning, TURN OFF THE
ENGINE AND GET EVERYONE OUT
OF THE VEHICLE until it cools down.
You may decide not to lift the hood but
to get service help right away.