Engine Heater - Chevrolet Silverado 1500 2021 Owner's Manual

234 Driving and Operating
The driver door has been opened or the
driver seat belt has been unbuckled.
The hood has been opened.
The Auto Stop has reached the maximum
allowed time.
Auto Stop Disable Switch
If equipped, the automatic engine Stop/Start
feature can be disabled and enabled by
h
pressing the switch with the
Auto Stop is enabled each time you start
the vehicle.
h
When is illuminated, the system is
enabled.

Engine Heater

If equipped, the engine heater can provide
easier starting and better fuel economy
during engine warm-up in cold weather
conditions at or below 18 °C (0 °F). Vehicles
with an engine heater should be plugged in
at least four hours before starting. An
internal thermostat in the plug-end of the
cord may exist, which will prevent engine
heater operation at temperatures above
18 °C (0 °F).
Do not plug in the engine block heater
while the vehicle is parked in a garage or
under a carport. Property damage or
personal injury may result. Always park
the vehicle in a clear open area away
from buildings or structures.
symbol.
Warning
To Use the Engine Heater
1. Turn off the engine.
2. Check the heater cord for damage. If it is
damaged, do not use it. See your dealer
for a replacement. Inspect the cord for
damage yearly.
3. Plug the heater cord into the connector
on the vehicle.
4. Plug the cord into a grounded 110-volt
AC outlet that is protected by a ground
fault detection function.