2020 DODGE CHALLENGER cooling

6
DEALER SERVICE .............................................. 252 Engine Oil ...................................................252
Engine Oil Filter .........................................255
Engine Air Cleaner Filter ...........................255
Air Conditioner Maintenance ....................257
Accessory Drive Belt Inspection................258Body Lubrication ........................................259
Windshield Wiper Blades ..........................259
Exhaust System .........................................261
Cooling System ........................................262
Brake System ............................................266
Clutch Hydraulic System — Manual
Transmission (If Equipped) .......................267 Manual Transmission — If Equipped ........267Automatic Transmission — If Equipped ....267
All Wheel Drive (AWD) — If Equipped .......268
Rear Axle ....................................................268
RAISING THE VEHICLE ...................................... 269
TIRES ................................................................... 269
Tire Safety Information .............................. 269
Tires — General Information .....................276Tire Types ...................................................280
Spare Tires — If Equipped .........................281
Wheel And Wheel Trim Care .....................283Tire Chains And Traction Devices —
Non-SRT......................................................284 Tire Chains And Traction Devices —
SRT .............................................................285 Tire Rotation Recommendations —
Non-SRT ..................................................... 285 Tire Rotation Recommendations —
SRT ............................................................ 285 Tire Rotation—Different Tire Size On
Front And Rear Axle ................................... 286
DEPARTMENT OF TRANSPORTATION
UNIFORM TIRE QUALITY GRADES ................... 286
Treadwear .................................................. 286
Traction Grades ......................................... 286
Temperature Grades ................................. 287
VEHICLE STORAGE ...........................................287
BODYWORK ........................................................ 287
Protection From Atmospheric Agents ...... 287
Body And Underbody Maintenance .......... 288Preserving The Bodywork .......................... 288
INTERIORS ......................................................... 289
Seats And Fabric Parts .............................. 289
Plastic And Coated Parts ........................... 290
Leather Parts ............................................. 290
Glass Surfaces .......................................... 290
TECHNICAL SPECIFICATIONS
IDENTIFICATION DATA .......................................291Vehicle Identification Number .................. 291
BRAKE SYSTEM ................................................. 291 WHEEL AND TIRE TORQUE
SPECIFICATIONS .............................................. 291
Torque Specifications................................ 292
FUEL REQUIREMENTS ....................................... 293
3.6L Engine ................................................ 293
5.7L Engine (With Automatic
Transmission) ............................................ 293 5.7L Engine (With Manual
Transmission) ............................................ 293 6.2L Supercharged Engine ....................... 2946.4L Engine ................................................ 294
Reformulated Gasoline ............................. 294
Materials Added To Fuel ........................... 295
Gasoline/Oxygenate Blends ..................... 295
Do Not Use E-85 In Non-Flex Fuel
Vehicles ...................................................... 295 CNG And LP Fuel System
Modifications ............................................. 295 MMT In Gasoline........................................ 296
Fuel System Cautions................................ 296
Carbon Monoxide Warnings...................... 296
FLUID CAPACITIES — NON-SRT ........................ 297
FLUID CAPACITIES — SRT ................................. 298
FLUIDS AND LUBRICANTS — NON-SRT .......... 299
Engine ....................................................... 299
Chassis ................................................... 301
FLUIDS AND LUBRICANTS — SRT .................... 302
Engine ........................................................ 302
Chassis ....................................................... 304

20_LA_OM_EN_USC_t.book Page 6

52GETTING TO KNOW YOUR VEHICLE
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,
press 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:
For Manual Climate Controls, if the system is
in Mix, Floor or Defrost Mode, the A/C can be
turned off, but the A/C system shall remain
active to prevent fogging of the windows.
If fog or mist appears on the windshield or
side glass, select Defrost mode, and increase
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
the AUTO button on the touchscreen on the
Automatic Temperature Control (ATC)
Panel.
2. Next, adjust the temperature that 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 move 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.

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GETTING TO KNOW YOUR VEHICLE53
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.
SRT Storage
SRT models include a Storage Mode feature to
prevent battery drain while parked for long
durations. The vehicle can be put into Storage
Mode through the info menu in the instrument
cluster display by selecting “Enter Storage
Mode”.
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.
2

20_LA_OM_EN_USC_t.book Page 53

70GETTING TO KNOW YOUR INSTRUMENT PANEL
INSTRUMENT CLUSTER DESCRIPTIONS

1. Tachometer

Indicates the engine speed in revolutions
per minute (RPM x 1000).
2. Instrument Cluster Display
When the appropriate conditions exist,
this display shows the instrument cluster
display messages. Refer to “Instrument
Cluster Display” in “Getting To Know
Your Instrument Panel” for further
information.
3. Speedometer
Indicates vehicle speed.
4. Temperature Gauge
The temperature gauge shows engine
coolant temperature. Any reading within
the normal range indicates that the
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.
Refer to “Refueling The Vehicle” in “Starting
And Operating” for further information.
NOTE:
The hard telltales will illuminate for a bulb check
when the ignition is first cycled.
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. If you decide to look under the
hood yourself, see “Servicing And
Maintenance.” Follow the warnings under the
Cooling System Pressure Cap paragraph.
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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GETTING TO KNOW YOUR INSTRUMENT PANEL73
SRT INSTRUMENT CLUSTER
D
ESCRIPTIONS

1. Tachometer

Indicates the engine speed in revolutions
per minute (RPM x 1000).
2. Instrument Cluster Display
When the appropriate conditions exist,
this display shows the instrument cluster
display messages. Refer to “Instrument
Cluster Display” in “Getting To Know Your
Instrument Panel” for further informa -
tion.
3. Speedometer
Indicates vehicle speed.
4. Temperature Gauge
The temperature gauge shows engine
coolant temperature. Any reading within
the normal range indicates that the
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.
Refer to “Refueling The Vehicle” in “Starting
And Operating” for further information.
NOTE:
The hard telltales will illuminate for a bulb check
when the ignition is first cycled.
INSTRUMENT CLUSTER DISPLAY
Your vehicle will be 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.
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 greater than 230°F
(110°C) 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 above 230°F
(110°C), turn the engine off immediately and
call an authorized dealer for service.
3

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SAFETY145
(Continued)
(Continued)
TRANSPORTING PETS
Air Bags deploying in the front seat could harm
your pet. An unrestrained pet will be thrown
about and possibly injured, or injure a
passenger during panic braking or in a collision.
Pets should be restrained in the rear seat (if
equipped) in pet harnesses or pet carriers that
are secured by seat belts.
SAFETY TIPS
TRANSPORTING PASSENGERS
NEVER TRANSPORT PASSENGERS IN THE
CARGO AREA.
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.
WARNING!
Do not leave children or animals inside
parked vehicles in hot weather. Interior
heat build-up may cause serious injury or
death.
It is extremely dangerous to ride in a cargo
area, inside or outside of a vehicle. In a
collision, people riding in these areas are
more likely to be seriously injured or killed.
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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196STARTING AND OPERATING

Seven-Pin Connector

TOWING TIPS
Before setting out on a trip, practice turning,
stopping, and backing up the trailer in an area
located away from heavy traffic.
Automatic Transmission — If Equipped
Select the DRIVE range when towing. The
transmission controls include a drive strategy to
avoid frequent shifting when towing. However, if
frequent shifting does occur while in DRIVE, you
can use the AutoStick shift control to manually
select a lower gear.
NOTE:
Using a lower gear while operating the vehicle
under heavy loading conditions will improve
performance and extend transmission life by
reducing excessive shifting and heat buildup.
This action will also provide better engine
braking.
Speed Control — If Equipped
Do not use on hilly terrain or with heavy
loads.
When using the Speed Control, if you experi -
ence speed drops greater than 10 mph
(16 km/h), disengage until you can get back
to cruising speed.
Use Speed Control in flat terrain and with
light loads to maximize fuel efficiency.
AutoStick
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.
1 — Battery
2 — Backup Lamps
3 — Right Stop/Turn
4 — Electric Brakes
5 — Ground
6 — Left Stop/Turn
7 — Running Lamps

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210IN CASE OF EMERGENCY
21 30 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 BlueAuto 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 AC Clutch/ EPS */ Vacuum Pump *
Cavity Cartridge Fuse Mini-Fuse Description

20_LA_OM_EN_USC_t.book Page 210