Jeep GRAND CHEROKEE 2022 Owner's Manual page 76

74 GETTING TO KNOW YOUR VEHICLE
Summer Operation
The engine cooling system must be protected with a
high-quality antifreeze coolant to provide proper
corrosion protection and to protect against engine
overheating. OAT coolant (conforming to MS.90032) is
recommended. For more information, see
Ú page 390.
Winter Operation
To ensure the best possible heater and defroster
performance, make sure the engine cooling
system is functioning properly and the proper
amount, type, and concentration of coolant is
used. Use of the Air Recirculation mode during
Winter months is not recommended, because it
may cause window fogging.
Vacation/Storage
For information on maintaining the Climate Control
system when the vehicle is being stored for an
extended period of time, see Ú page 382.
Window Fogging
Vehicle windows tend to fog on the inside in mild, rainy,
and/or humid weather. To clear the windows, select
Defrost or Mix mode and increase the front blower
speed. Do not use the Recirculation mode without
A/C for long periods, as fogging may occur.
Outside Air Intake
Make sure the air intake, located directly in front of
the windshield, is free of obstructions, such as
leaves. Leaves collected in the air intake may
reduce airflow, and if they enter the air distribution
box, they could plug the water drains. In Winter
months, make sure the air intake is clear of ice,
slush, and snow.
Cabin Air Filter
The Climate Control system filters out dust and
pollen from the air. Contact an authorized dealer to
service your cabin air filter, and to have it replaced
when needed.
Stop/Start System — If Equipped
While in an Autostop, the Climate Control system
may automatically adjust airflow to maintain cabin
comfort. Customer settings will be maintained
upon return to an engine running condition.
Windshield Wiper De-Icer — If Equipped
The Windshield Wiper De-Icer is a heating element
located at the base of the windshield.
It operates automatically once the following
conditions are met:
Activation By Front Defrost

The Windshield Wiper De-Icer activates auto-
matically during a cold weather manual start
with full defrost, and when the ambient
temperature is below 33°F (0.6°C).
Activation By Rear Defrost

The Windshield Wiper De-Icer activates auto-
matically when the Rear Defrost is operating
and the ambient temperature is below
33°F (0.6°C).
Activation By Remote Start Operation

When the Remote Start is activated and the
outside ambient temperature is less than
33°F (0.6°C) the Windshield Wiper De-Icer will
activate. Exiting Remote Start will resume its
previous operation. If the Windshield Wiper
De-Icer was active, the timer and operation
will continue.