2021 DODGE CHALLENGER cabin filter

52GETTING TO KNOW YOUR VEHICLE
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 Úpage 298.
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.
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 wiper de-icer activates automatically 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 wiper de-icer activates automatically 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 is acti -
vated. Exiting Remote Start will resume previous
operation. If the windshield wiper de-icer is
active, the timer and operation will continue.
Operating Tips Chart
WEATHER CONTROL SETTINGS
Hot Weather And
Vehicle Interior Is Very Hot Set the mode control to
(Panel Mode),
(MAX A/C) on, and
blower on high. Roll
down the windows for a minute to flush out the hot air. Adjust the
controls as needed to achieve comfort.
Warm Weather Turn (A/C)
on and set the mode
control to (Panel Mode).
Cool Sunny Operate in (Bi-Level
Mode).
Cool & Humid Conditions Set the mode control to
(Mix Mode) and
turn on (A/C) to
keep windows clear.

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248SERVICING AND MAINTENANCE
Mileage or time passed
(whichever comes first)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
Additional Inspections
Inspect the CV/Universal joints. X X X X X X X X X X X X X X
Inspect front suspension, tie rod ends,
boot seals and replace if necessary. X
XX X X XX
Inspect the rear axle fluid. Inspect the
front axle fluid (All Wheel Drive Only). X
XX X X XX
Inspect the manual transmission fluid
(if equipped). X
XX X X XX
Inspect the brake linings, replace as
necessary. X
XX X X XX
Adjust parking brake on vehicles
equipped with four wheel disc brakes. X
XX X X XX
Inspect transfer case fluid (All Wheel
Drive Only). X
X X X X
Additional Maintenance
Replace engine air cleaner filter. XX X X X
Replace cabin air filter. XXX X X XX

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258SERVICING AND MAINTENANCE
Refrigerant Recovery And Recycling
R-134a — If Equipped
R-134a Air Conditioning Refrigerant is a hydrofluo -
rocarbon (HFC) that is an ozone-friendly
substance. The manufacturer recommends that
air conditioning service be performed by an
authorized dealer or other service facilities using
recovery and recycling equipment.
NOTE:Use only manufacturer approved A/C system PAG
compressor oil and refrigerants.
Refrigerant Recovery And Recycling
R-1234yf — If Equipped
R–1234yf Air Conditioning Refrigerant is a
hydrofluoroolefin (HFO) that is endorsed by the
Environmental Protection Agency and is an
ozone-friendly substance with a low
global-warming potential. The manufacturer
recommends that air conditioning service be
performed by an authorized dealer using recovery
and recycling equipment.
NOTE:Use only manufacturer approved A/C system PAG
compressor oil, and refrigerants.
Cabin Air Filter
The filter is located in the fresh air inlet under the
hood, behind a removable panel in the cowl on the
passenger side of the vehicle, next to the
windshield wipers. When installing a new filter,
ensure its proper orientation.

1. Remove the access door in the cowl screen by pressing the retaining clips.

Access Door
2. Unsnap both ends and lift the filter access
cover.

Filter Access Cover

3. Remove the used filter.
4. Install the new filter with arrows pointing in the direction of airflow, which is toward the rear of
the vehicle (text and arrows on the filter will
indicate this).

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SERVICING AND MAINTENANCE259
(Continued)

Cabin Air Filter

5. Close the filter access cover.
For the proper maintenance intervals Úpage 246.
ACCESSORY DRIVE BELT INSPECTION
When inspecting accessory drive belts, small
cracks that run across ribbed surface of belt from
rib to rib, are considered normal. These are not a
reason to replace belt. However, cracks running
along a rib (not across) are not normal. Any belt
with cracks running along a rib must be replaced.
Also have the belt replaced if it has excessive wear,
frayed cords or severe glazing.

Accessory Belt (Serpentine Belt)
Conditions that would require replacement:
Rib chunking (one or more ribs has separated
from belt body)
Rib or belt wear
Longitudinal belt cracking (cracks between two
ribs)
Belt slips
“Groove jumping" (belt does not maintain
correct position on pulley)
Belt broken (note: identify and correct problem
before new belt is installed)
Noise (objectionable squeal, squeak, or rumble
is heard or felt while drive belt is in operation)
Some conditions can be caused by a faulty
component such as a belt pulley. Belt pulleys
should be carefully inspected for damage and
proper alignment.
Belt replacement on some models requires the
use of special tools, we recommend having your
vehicle serviced at an authorized dealer.
WARNING!
Do not attempt to inspect an accessory drive
belt with vehicle running.
When working near the radiator cooling fan,
disconnect the fan motor lead. The fan is
temperature controlled and can start at any
time regardless of ignition mode. You could be
injured by the moving fan blades.
You can be badly injured working on or around
a motor vehicle. Only do service work for which
you have the knowledge and the proper equip -
ment. If you have any doubt about your ability
to perform a service job, take your vehicle to a
competent mechanic.
WARNING!
8

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