Pontiac 2002 Grand Prix - Manual (Page 98)

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Engine Coolant Heater (Option)
In very cold weather, 0
_F ( - 18
_C) or colder, the engine
coolant heater can help. You’ll get easier starting and
better fuel economy during engine warm
- up. Usually,
the coolant heater should be plugged in a minimum of
four hours prior to starting your vehicle. At temperatures
above 32
_F (0_C), use of the coolant heater is
not required.
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
The cord is located below the engine air
cleaner/filter near the coolant reservoir bottle.
See “Engine Compartment Overview” in the
Index for more information on location.
3. Plug it 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 fire. You could be seriously injured. Plug the
cord into a properly grounded three
- prong
110 - volt AC outlet. If the cord won’t reach, use a
heavy - duty three - prong extension cord rated for
at least 15 amps.