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2-29
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Find the plug
-
in receptacle (either behind the front
bumper or in the component box).
3. Plug a heavy
-
duty, three
-
prong extension cord
(rated for at least 15 amps) into the vehicle’s plug
-
in
receptacle first. Then plug the extension cord 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. Use a heavy
-
duty three
-
prong
extension cord rated for at least 15 amps.
4. Before starting the engine, be sure to unplug
the cord.
How long should you keep the coolant heater plugged
in? The answer depends on the outside temperature.
From 32
_F to
-
10
_F (0_C to
-
23
_C), keep the coolant
heater plugged in at least two hours. Below
-
10
_F
(
-
23
_C), keep the coolant heater plugged in for a
minimum of eight hours or overnight. It will not harm
either the coolant heater or the vehicle to leave the
coolant heater plugged in longer than the times stated.
Be sure to remove and store the cord before starting the
engine. See “Diesel Fuel Requirements and Fuel
System” in the Index for information on what fuel to
use in cold weather.
Summary of Contents for 2003 C4C042
Page 1: ......
Page 6: ...v Here are some examples of symbols you may find on your vehicle ...
Page 66: ...1 59 United States Canada ...
Page 143: ...2 68 The Instrument Panel Your Information System ...
Page 302: ...6 48 Single Axle Models ...
Page 329: ...6 75 GM Vehicle Care Appearance Materials ...
Page 377: ...7 31 Maintenance Record DATE ODOMETER READING SERVICED BY MAINTENANCE PERFORMED ...
Page 378: ...7 32 Maintenance Record DATE ODOMETER READING SERVICED BY MAINTENANCE PERFORMED ...
Page 379: ...7 33 Maintenance Record DATE ODOMETER READING SERVICED BY MAINTENANCE PERFORMED ...
Page 380: ...7 34 Maintenance Record DATE ODOMETER READING SERVICED BY MAINTENANCE PERFORMED ...