Jeep Grand Cherokee SRT 2018 Owner's Manual page 59

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 in-
crease the front blower speed. Do not use the
Recirculation mode without A/C for long periods,
as fogging may occur.
Operating Tips Chart
56
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 plenum,
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.