Buick 2006 Lucerne User Manual download pdf (Page 100)

Engine Coolant Heater

If your vehicle has this feature, 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.

On vehicles with the 3.8L V6 engine, the coolant

heater cord is located on the passenger’s side of the

vehicle, above the headlamp assembly. On

vehicles with the 4.6L V8 engine, the cord is located

on the driver’s side of the vehicle on the right

side of the engine air cleaner. It is between the

engine cover and the engine air cleaner.

{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 will

not reach, use a heavy-duty three-prong

extension cord rated for at least 15 amps.

3. Plug the cord into a normal, grounded 110-volt AC

outlet.

4. Before starting the engine, be sure to unplug and

store the cord as it was before to keep it away

from moving engine parts. If you do not, it could be

damaged.

How long should you keep the coolant heater plugged

in? The answer depends on the outside temperature, the

kind of oil you have, and some other things. Instead

of trying to list everything here, we ask that you contact

your dealer in the area where you will be parking

your vehicle. The dealer can give you the best advice

for that particular area.

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Buick 2006 Lucerne User Manual Page 100