2021 CHRYSLER 300 cabin filter

50 GETTING TO KNOW YOUR VEHICLE
To provide you with maximum comfort in the
Automatic mode during cold start-ups, the blower
fan will remain on low until the engine warms up.
The blower will increase in speed and transition
into Auto mode.
Manual Operation Override
This system offers a full complement of manual
override features. The AUTO symbol in the front
ATC display will be turned off when the system is
being used in the manual mode.
CLIMATE VOICE COMMANDS
Adjust vehicle temperatures hands-free and keep
everyone comfortable while you keep moving
ahead.
Push the VR button. After the beep, say one of the
fol

lowing commands:
“Set the driver temperature to 70 degrees ”
“Set the passenger temperature to 70 degrees ”
TIP:
Voice Command for Climate may only be used to
a d
just the interior temperature of your vehicle.
Voice Command will not work to adjust the heated
seats or steering wheel if equipped.
OPERATING TIPS
NOTE:
Refer to the chart at the end of this section for
s u
ggested control settings for various weather
conditions.
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.
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 242.
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.

SERVICING AND MAINTENANCE 197
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: 2345678910 1112131415
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. XXXXXXXXXXXXXX
Inspect front suspension, tie rod ends, boot seals, and replace if
ne
cessary. X
XXXXXX
Inspect the rear axle fluid. Inspect the front axle fluid (All Wheel
D r

ive Only). X
XXXXXX
Inspect the brake linings, replace as necessary. XXXXXXX
Adjust parking brake on vehicles equipped with four wheel disc
b r

akes. X
XXXXXX
Inspect transfer case fluid (All Wheel Drive Only). XXXXX
Additional Maintenance
Replace engine air cleaner filter. XXXXX
Replace cabin air filter. XXXXXXX
Replace spark plugs.
1X
Flush and replace the engine coolant at 10 years or 150,000 miles
( 2

40,000 km) whichever comes first. X
X
8

204 SERVICING AND MAINTENANCE
AIR CONDITIONER MAINTENANCE
For best possible performance, your air conditioner
should be checked and serviced by an authorized
dealer at the start of each warm season. This
service should include cleaning of the condenser
fins and a performance test. Drive belt tension
should also be checked at this time.
Refrigerant Recovery And Recycling
R-134a — If Equipped
R-134a Air Conditioning Refrigerant is a hydrofluo -
rocarbon (HFC) that is an ozone-friendly
s u
bstance. 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
c om
pressor oil and refrigerants.
Refrigerant Recovery And Recycling
R-1234yf — If Equipped
R-1234yf Air Conditioning Refrigerant is a hydroflu -
oroolefin (HFO) that is endorsed by the
E n
vironmental 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
c om
pressor oil, and refrigerants.
Cabin Air Filter
The cabin air 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 cabin
air filter, ensure its proper orientation.

1. R emove the access door in the cowl screen by
p
ressing the retaining clips.

Access Door

WARNING!
Use only refrigerants and compressor lubri -
cants approved by the manufacturer for your
a i
r conditioning system. Some unapproved
refrigerants are flammable and can explode,
injuring you. Other unapproved refrigerants or
lubricants can cause the system to fail,
requiring costly repairs. Refer to Warranty
Information Book, for further warranty infor -
mation.
The air conditioning system contains refrig -
erant under high pressure. To avoid risk of
p e
rsonal injury or damage to the system,
adding refrigerant or any repair requiring lines
to be disconnected should be done by an
experienced technician.
CAUTION!
Do not use chemical flushes in your air condi -
tioning system as the chemicals can damage
y ou
r air conditioning components. Such damage
is not covered by the New Vehicle Limited War -
ranty.

SERVICING AND MAINTENANCE 205
(Continued)
2. Unsnap both ends and lift the cabin air filter access cover.

Filter Access Cover

3. R emove the used cabin air filter.
4
. I nstall the new cabin air filter with arrows
p
ointing in the direction of airflow, which is
toward the rear of the vehicle (text and arrows
on the cabin air filter will indicate this).
Cabin Air Filter

5. Close the cabin air filter access cover.
F
or the proper maintenance intervals
Ú page 195.
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)

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
t o

perform a service job, take your vehicle to a
competent mechanic.
WARNING!
8