2020 CHRYSLER 300 cooling

6
DEALER SERVICE .............................................. 239 Engine Oil .................................................. 240Engine Oil Filter ..........................................241Engine Air Cleaner Filter ...........................241
Air Conditioner Maintenance ...................242Accessory Drive Belt Inspection................243Body Lubrication ........................................244
Windshield Wiper Blades ..........................244
Exhaust System .........................................246
Cooling System .........................................247
Brake System ............................................250
Automatic Transmission ...........................251
All Wheel Drive (AWD) — If Equipped .......253
Rear Axle ....................................................253
RAISING THE VEHICLE ...................................... 253
TIRES ................................................................... 253
Tire Safety Information .............................253Tires — General Information .....................261Tire Types ...................................................265
Spare Tires — If Equipped .........................266
Wheel And Wheel Trim Care ....................268
Tire Chains and Traction Devices .............269
Tire Rotation Recommendations .............270 DEPARTMENT OF TRANSPORTATION
UNIFORM TIRE QUALITY GRADES .................. 270
Treadwear .................................................. 270
Traction Grades ......................................... 271
Temperature Grades ................................. 271
VEHICLE STORAGE .............................................271
BODYWORK ........................................................ 272
Protection From Atmospheric Agents....... 272
Body And Underbody Maintenance .......... 272Preserving The Bodywork .......................... 272
INTERIORS ......................................................... 273
Seats And Fabric Parts .............................. 273
Plastic And Coated Parts ........................... 274
Leather Parts ............................................. 274
Glass Surfaces .......................................... 274
TECHNICAL SPECIFICATIONS
IDENTIFICATION DATA .......................................275Vehicle Identification Number .................. 275
BRAKE SYSTEM ................................................. 275
WHEEL AND TIRE TORQUE
SPECIFICATIONS ................................................ 275
Torque Specifications ................................ 275 FUEL REQUIREMENTS ...................................... 276
3.6L Engine ................................................ 276
5.7L Engine ................................................ 276
Reformulated Gasoline ............................ 277Materials Added To Fuel ........................... 277
Gasoline/Oxygenate Blends ..................... 277
Do Not Use E-85 In Non-Flex Fuel
Vehicles ...................................................... 278 CNG And LP Fuel System Modifications .. 278MMT In Gasoline........................................ 278
Fuel System Cautions................................ 279
Carbon Monoxide Warnings...................... 279
FLUID CAPACITIES ............................................ 280
FLUIDS AND LUBRICANTS ............................... 281
Engine ........................................................ 281
Chassis ...................................................... 283MULTIMEDIA
UCONNECT SYSTEMS ....................................... 284
CYBERSECURITY ............................................... 284
UCONNECT SETTINGS ...................................... 285 Customer Programmable Features —
Uconnect 4C/4C NAV Settings ................ 285

20_LX_OM_EN_USC_t.book Page 6

GETTING TO KNOW YOUR VEHICLE55
CLIMATE CONTROL FUNCTIONS
A/C (Air Conditioning)
The Air Conditioning (A/C) button allows the
operator to manually activate or deactivate the
air conditioning system. When the air
conditioning system is turned on, cool
dehumidified air will flow through the outlets
into the cabin. For improved fuel economy, push
the A/C button to turn off the air conditioning
and manually adjust the blower and airflow
mode settings. Also, make sure to select only
Panel, Bi-Level, or Floor modes.
NOTE:
If fog or mist appears on the windshield or
side glass, select Defrost mode and adjust
blower speed if needed.
If your air conditioning performance seems
lower than expected, check the front of the
A/C condenser (located in front of the radi -
ator), for an accumulation of dirt or insects.
Clean with a gentle water spray from the front
of the radiator and through the condenser.
MAX A/C
MAX A/C sets the control for maximum cooling
performance. Press and release to toggle between MAX A/C
and the prior settings. The button illuminates
when MAX A/C is on.
In MAX A/C, the blower level and mode position
can be adjusted to desired user settings.
Pressing other settings will cause the MAX A/C
operation to switch to the selected setting and
MAX A/C to exit.
Recirculation
In cold weather, use of Recirculation mode may
lead to excessive window fogging. The
Recirculation feature may be unavailable
(button on the touchscreen greyed out) if
conditions exist that could create fogging on the
inside of the windshield.
AUTOMATIC TEMPERATURE CONTROL
(ATC)
Automatic Operation

1. Push the AUTO button on the faceplate, or
press and release the AUTO button on the
touchscreen on the Automatic
Temperature Control (ATC) Panel.

2. Next, adjust the temperature you would like the system to maintain by adjusting the driver and passenger temperature control
buttons. Once the desired temperature is
displayed, the system will achieve and
automatically maintain that comfort level.
3. When the system is set up for your comfort level, it is not necessary to change the
settings. You will experience the greatest
efficiency by simply allowing the system to
function automatically.
NOTE:
It is not necessary to change the temperature
settings for cold or hot vehicles. The system
automatically adjusts the temperature,
mode, and blower speed to provide comfort
as quickly as possible.
The temperature can be displayed in U.S. or
Metric units by selecting the U.S./Metric
customer-programmable feature. Refer to
the “Uconnect Settings” in “Multimedia” for
further information.
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.
2

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56GETTING TO KNOW YOUR VEHICLE
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.
OPERATING TIPS
NOTE:
Refer to the chart at the end of this section for
suggested 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
Before you store your vehicle, or keep it out of
service (i.e., vacation) for two weeks or more,
run the air conditioning system at idle for about
five minutes, in fresh air with the blower setting
on high. This will ensure adequate system
lubrication to minimize the possibility of
compressor damage when the system is started
again.
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
plenum, they could plug the water drains. In
Winter months, make sure the air intake is clear
of ice, slush, and snow.
CAUTION!
Failure to follow these cautions can cause
damage to the heating elements:
Use care when washing the inside of the
rear window. Do not use abrasive window
cleaners on the interior surface of the
window. Use a soft cloth and a mild
washing solution, wiping parallel to the
heating elements. Labels can be peeled off
after soaking with warm water.
Do not use scrapers, sharp instruments, or
abrasive window cleaners on the interior
surface of the window.
Keep all objects a safe distance from the
window.

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78GETTING TO KNOW YOUR INSTRUMENT PANEL
engine cooling system is operating satis-
factorily.
The gauge pointer will likely indicate a
higher temperature when driving in hot
weather, up mountain grades, or when
towing a trailer. It should not be allowed
to exceed the upper limits of the normal
operating range. 5. Fuel Gauge
The pointer shows the level of fuel in the
fuel tank when the Keyless Push Button
Ignition is in the ON/RUN position.
 The fuel pump symbol points
to the side of the vehicle where
the fuel door is located.
For further information refer to “Refueling
The Vehicle” in “Starting And Operating.”
NOTE:
The warning / indicator Lights will briefly illumi -
nate for a bulb check when the ignition is first
cycled.
INSTRUMENT CLUSTER DISPLAY
Your vehicle is equipped with an instrument
cluster display, which offers useful information
to the driver. With the ignition in the OFF mode,
opening/closing of a door will activate the
display for viewing, and display the total miles,
or kilometers, in the odometer. Your instrument
cluster display is designed to display important
information about your vehicle’s systems and
features. Using a driver interactive display
located on the instrument panel, your
instrument cluster display can show you how systems are working and give you warnings
when they are not. The steering wheel mounted
controls allow you to scroll through the main
menus and submenus. You can access the
specific information you want and make
selections and adjustments.
LOCATION AND CONTROLS
The instrument cluster display features an
interactive display which is located in the
instrument cluster.
This system conveniently allows the driver to
select a variety of useful information by pushing
the arrow buttons located on the left side of the
steering wheel. The instrument cluster display
menu items consist of the following:
Speedometer
Vehicle Info
Driver Assist — If Equipped
Fuel Economy
Trip
Audio
Messages
Screen Setup
WARNING!
A hot engine cooling system is dangerous.
You or others could be badly burned by steam
or boiling coolant. You may want to call an
authorized dealer for service if your vehicle
overheats.
CAUTION!
Driving with a hot engine cooling system
could damage your vehicle. If the
temperature gauge reads “H,” pull over and
stop the vehicle. Idle the vehicle with the air
conditioner turned off until the pointer drops
back into the normal range. If the pointer
remains on the “H,” turn the engine off
immediately and call an authorized dealer for
service.

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SAFETY143
(Continued)
EXHAUST GAS The best protection against carbon monoxide
entry into the vehicle body is a properly
maintained engine exhaust system.
Whenever a change is noticed in the sound of
the exhaust system, when exhaust fumes can
be detected inside the vehicle, or when the
underside or rear of the vehicle is damaged,
have a competent mechanic inspect the
complete exhaust system and adjacent body
areas for broken, damaged, deteriorated, or
mispositioned parts. Open seams or loose
connections could permit exhaust fumes to
seep into the passenger compartment. In
addition, inspect the exhaust system each time
the vehicle is raised for lubrication or oil
change. Replace as required.
SAFETY CHECKS YOU SHOULD MAKE
I
NSIDE THE VEHICLE
Seat Belts
Inspect the seat belt system periodically,
checking for cuts, frays, and loose parts.
Damaged parts must be replaced immediately.
Do not disassemble or modify the system.
Front seat belt assemblies must be replaced
after a collision. Rear seat belt assemblies must
be replaced after a collision if they have been
damaged (i.e., bent retractor, torn webbing,
etc.). If there is any question regarding seat belt
or retractor condition, replace the seat belt.
Air Bag Warning Light
The Air Bag warning light will turn on for four
to eight seconds as a bulb check when the
ignition switch is first turned to ON/RUN. If the
light is either not on during starting, stays on, or
turns on while driving, have the system
inspected at an authorized dealer as soon as
possible. After the bulb check, this light will
Do not allow people to ride in any area of
your vehicle that is not equipped with seats
and seat belts.
Be sure everyone in your vehicle is in a seat
and using a seat belt properly.
WARNING!
Exhaust gases can injure or kill. They contain
carbon monoxide (CO), which is colorless and
odorless. Breathing it can make you
unconscious and can eventually poison you.
To avoid breathing (CO), follow these safety
tips:
Do not run the engine in a closed garage or
in confined areas any longer than needed
to move your vehicle in or out of the area.
If you are required to drive with the trunk/
liftgate/rear doors open, make sure that all
windows are closed and the climate control
BLOWER switch is set at high speed. DO
NOT use the recirculation mode.
WARNING! (Continued)
If it is necessary to sit in a parked vehicle
with the engine running, adjust your
heating or cooling controls to force outside
air into the vehicle. Set the blower at high
speed.
WARNING! (Continued)
4

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198STARTING AND OPERATING
AutoStick — If Equipped
When using the AutoStick shift control, select
the highest gear that allows for adequate
performance and avoids frequent down -
shifts. For example, choose “5” if the desired
speed can be maintained. Choose “4” or “3”
if needed to maintain the desired speed.
To prevent excess heat generation, avoid
continuous driving at high RPM. Reduce
vehicle speed as necessary to avoid
extended driving at high RPM. Return to a
higher gear or vehicle speed when grade and
road conditions allow.
Cooling System
To reduce potential for engine and transmission
overheating, take the following actions:
City Driving
In city traffic — while stopped, place the trans -
mission in NEUTRAL, but do not increase
engine idle speed.
Highway Driving
Reduce speed.
Temporarily turn off air conditioning.
RECREATIONAL TOWING (BEHIND
MOTORHOME, ETC.)
Recreational towing (with all four wheels on the
ground, or using a tow dolly) is NOT ALLOWED.
The only acceptable method for towing this
vehicle (behind another vehicle) is on a vehicle
trailer with all four wheels OFF the ground.
DRIVING TIPS
DRIVING ON SLIPPERY SURFACES
Information in this section will aid in safe
controlled launches in adverse conditions.
Acceleration
Rapid acceleration on snow covered, wet, or
other slippery surfaces may cause the driving
wheels to pull erratically to the right or left. This
phenomenon occurs when there is a difference
in the surface traction under the rear (driving)
wheels.
CAUTION!
Towing this vehicle in violation of the above
requirements can cause severe transmission
and/or transfer case damage. Damage from
improper towing is not covered under the New
Vehicle Limited Warranty.
WARNING!
Rapid acceleration on slippery surfaces is
dangerous. Unequal traction can cause
sudden pulling of the front wheels. You could
lose control of the vehicle and possibly have a
collision. Accelerate slowly and carefully
whenever there is likely to be poor traction
(ice, snow, wet, mud, loose sand, etc.).

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212IN CASE OF EMERGENCY
2130 Amp Pink
20 Amp Blue – Police –Headlamp Washers – If Equipped
Police Bat Feed #2
22 40 Amp Green /
20 Amp Blue – Police –
Engine Cooling Pump (6.2L Supercharged) / Police Bat Feed # 3
23 20 Amp Blue –Police Bat Feed # 1
24 50 Amp Red /
20 Amp Blue –
Radiator Fan (6.2L Supercharged) / Police Ignition Run/ACC Feed # 3
28 – –Fuse – Spare
29 –15 Amp Blue Transmission Control Module (Challenger / Charger Police)
30 – –Fuse – Spare
31 –25 Amp Clear Engine Module
32 – –Fuse – Spare
33 – –Fuse – Spare
34 –25 Amp Clear ASD Feed #1
35 –20 Amp Yellow ASD Feed #2
36 –10 Amp RedAnti-Lock Brake Module / Steering Column Lock Module (300 if
equipped)
37 –10 Amp Red Engine Controller
38 –10 Amp Red Airbag Module
39 –10 Amp Red A/C Clutch / EPS – If Equipped / Vacuum Pump – If Equipped
Cavity Cartridge Fuse Mini-FuseDescription

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222IN CASE OF EMERGENCY
(Continued)
ROAD TIRE INSTALLATION

1. Mount the road tire on the axle.

2. Install the remaining lug nuts with the cone shaped end of the nut toward the wheel.
Lightly tighten the lug nuts.
3. Lower the vehicle to the ground by turning the jack handle counterclockwise.
4. Refer to “Wheel And Tire Torque Specifi -
cations” in “Technical Specifications” for
proper lug nut torque.
5. After 25 miles (40 km), check the lug nut torque with a torque wrench to ensure that
all lug nuts are properly seated against the
wheel.
JUMP STARTING
If your vehicle has a discharged battery, it can
be jump started using a set of jumper cables
and a battery in another vehicle, or by using a
portable battery booster pack. Jump starting
can be dangerous if done improperly, so please
follow the procedures in this section carefully.
NOTE:
When using a portable battery booster pack,
follow the manufacturer's operating instruc -
tions and precautions.
PREPARATIONS FOR JUMP START
The battery is stored under an access cover in
the trunk. Remote battery posts are located on
the right side of the engine compartment for
jump starting.

Jump Starting Locations

WARNING!
To avoid the risk of forcing the vehicle off the
jack, do not tighten the wheel nuts fully until
the vehicle has been lowered. Failure to
follow this warning may result in serious
injury.WARNING!
Do not attempt jump starting if the battery is
frozen. It could rupture or explode and cause
personal injury.
CAUTION!
Do not use a portable battery booster pack or
any other booster source with a system
voltage greater than 12 Volts or damage to
the battery, starter motor, alternator or
electrical system may occur.Remote Positive (+) Post
Remote Negative (-) Post
WARNING!
Take care to avoid the radiator cooling fan
whenever the hood is raised. It can start
anytime the ignition switch is ON. You can
be injured by moving fan blades.

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