Chevrolet/GMC Silverado 1500 / Sierra/Sierra Denali 1500 Owner Manual
(GMNA-Localizing-MidEast-16515122) - 2023 - CRC - 8/12/22
212
Driving and Operating
Auto Stop Disable Switch
The automatic engine Stop/Start feature can
be disabled and enabled by pressing
h
.
Auto Stop/Start is enabled each time you
start the vehicle.
When the
h
indicator is illuminated, the
system is enabled.
Engine Heater (Silverado)
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).
{
Warning
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.
Base Model Shown, Others Similar
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.
{
Warning
Improper use of the heater cord or an
extension cord can damage the cord and
may result in overheating and fire.
.
Plug the cord into a three-prong
electrical utility receptacle that is
protected by a ground fault detection
function. An ungrounded outlet could
cause an electric shock.
.
Use a weatherproof, heavy-duty,
15 amp-rated extension cord if needed.
Failure to use the recommended
extension cord in good operating
condition, or using a damaged heater
(Continued)
