Chevrolet/GMC 2013 DURAMAX Diesel, Owner'S Manual

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Black plate (9,1)
Chevrolet/GMC DURAMAX Diesel - 2013 - CRC - 5/29/12
Driving and Operating 9-9
4. Attach the metal hooks, one
each at the top corners.
5. To remove the winter cover,
reverse the steps listed
previously.
Engine Heater
The engine coolant heater can
provide easier starting and better
fuel economy during engine
warm-up in cold weather conditions
at or below
− 18°C (0°F). The engine
coolant heater should be plugged in
at least four hours before starting.
To Use the Engine Heater
1. Turn off the engine.
2. Open the hood and unwrap the
electrical cord. The cord is
located in the engine
compartment, on the passenger
side of the vehicle, near the right
side auxiliary battery.
3. Plug it into a normal, grounded
110-volt AC outlet.
{
WARNING
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.
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,
and prevent damage.
The length of time the heater should
remain plugged in depends on the
outside temperature. You may wish
to use the coolant heater to improve
ease of starting at temperatures
between
− 18°C (0°F) and − 29°C
( − 20°F). Keep the coolant heater
plugged in for a minimum of four
hours. At temperatures below
− 29°C
( − 20°F), the coolant heater should
remain plugged in for at least eight
hours. 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 store the cord before starting
the engine. See
Fuel for Diesel
Engines on page 9 ‑ 19 for
information on what fuel to use in
cold weather.