2021 DODGE CHALLENGER overheating

40GETTING TO KNOW YOUR VEHICLE
PROGRAMMING HOMELINK® TO A
M
ISCELLANEOUS DEVICE
Follow the procedure on programming HomeLink®
to a garage door opener Ú page 39. Be sure to
determine if the device has a rolling code, or
non-rolling code before beginning the
programming process.
NOTE:Canadian radio frequency laws require transmitter
signals to time-out (or quit) after several seconds
of transmission, which may not be long enough for
HomeLink® to pick up the signal during
programming. Similar to this Canadian law, some
U.S. gate operators are designed to time-out in the
same manner. The procedure may need to be
performed multiple times to successfully pair the
device to your HomeLink® buttons.
REPROGRAMMING A SINGLE
H
OMELINK® BUTTON
To reprogram a single HomeLink® button that has
been previously trained, without erasing all the
channels, follow the procedure below. Be sure to
determine whether the new device you want to
program the HomeLink® button to has a rolling
code or non-rolling code.

1. Place the ignition in the ON/RUN position,
without starting the engine.

2. Push and hold the desired HomeLink® button until the HomeLink® Indicator light begins to
flash after 20 seconds. Do not release the
button.
3. Without releasing the button , proceed with
Step 2 in “Programming HomeLink® To A
Garage Door Opener” and follow all remaining
steps.
CANADIAN/GATE OPERATOR
P
ROGRAMMING
For programming transmitters in Canada/United
States that require the transmitter signals to
“time-out” after several seconds of transmission.
Canadian radio frequency laws require transmitter
signals to time-out (or quit) after several seconds
of transmission – which may not be long enough
for HomeLink® to pick up the signal during programming. Similar to this Canadian law, some
U.S. gate operators are designed to time-out in the
same manner.
It may be helpful to unplug the device during the
cycling process to prevent possible overheating of
the garage door or gate motor.

1. Place the ignition in the ON/RUN position.

2. Place the hand-held transmitter 1 to 3 inches
(3 to 8 cm) away from the HomeLink® button
you wish to program while keeping the
HomeLink® indicator light in view.
3. Continue to press and hold the HomeLink® button, while you press and release (cycle)
your hand-held transmitter every two seconds
until HomeLink® has successfully accepted
the frequency signal. The indicator light will
flash slowly and then rapidly when fully
trained.
4. Watch for the HomeLink® indicator to change flash rates. When it changes, it is
programmed. It may take up to 30 seconds or
longer in rare cases. The garage door may
open and close while you are programming.
5. Press and hold the programmed HomeLink® button and observe the indicator light.
Do not run your vehicle in a closed garage or
confined area while programming the trans -
ceiver. Exhaust gas from your vehicle contains
Carbon Monoxide (CO) which is odorless and
colorless. Carbon Monoxide is poisonous
when inhaled and can cause you and others to
be severely injured or killed.
WARNING!

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GETTING TO KNOW YOUR VEHICLE51
Mix Mode
Air is directed through the floor, defrost,
and side window demister outlets. This
setting works best in cold or snowy
conditions that require extra heat to the
windshield. This setting is good for maintaining
comfort while reducing moisture on the
windshield.
Climate Control OFF Button
Press and release this button to turn the
Climate Control ON/OFF.
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 US or
Metric units within Uconnect Settings
Úpage 120.
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 RECOGNITION
Adjust vehicle temperatures hands-free and keep
everyone comfortable while you keep moving
ahead. (If vehicle is equipped with climate control.)
Push the VR button . After the beep, say one of the
following commands:
“ Set driver temperature to 70 degrees ”
“Set passenger temperature to 70 degrees ”
TIP:Voice Command for Climate may only be used to
adjust the interior temperature of your vehicle.
Voice Command will not work to adjust the heated
seats or steering wheel if equipped.
OPERATING TIPS
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.
2

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IN CASE OF EMERGENCY241
IF YOUR ENGINE OVERHEATS
If the vehicle is overheating, it will need to be
serviced by an authorized dealer.
In any of the following situations, you can reduce
the potential for overheating by taking the
appropriate action.
On the highways — slow down.
In city traffic — while stopped, place the trans -
mission in NEUTRAL, but do not increase the
engine idle speed while preventing vehicle
motion with the brakes.
NOTE:There are steps that you can take to slow down an
impending overheat condition:
If your Air Conditioner (A/C) is on, turn it off. The
A/C system adds heat to the engine cooling
system and turning the A/C off can help remove
this heat.
You can also turn the temperature control to
maximum heat, the mode control to floor and
the blower control to high. This allows the heater
core to act as a supplement to the radiator and
aids in removing heat from the engine cooling
system.
MANUAL PARK RELEASE — 8 – SPEED
TRANSMISSION WARNING!
You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator.
If you see or hear steam coming from under the
hood, do not open the hood until the radiator
has had time to cool. Never try to open a cooling
system pressure cap when the radiator or
coolant bottle is hot.
CAUTION!
Driving with a hot cooling system could damage
your vehicle. If the temperature gauge reads
HOT (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 HOT (H), and you hear
continuous chimes, turn the engine off
immediately and call for service.
WARNING!
Always secure your vehicle by fully applying the
parking brake before activating the Manual Park
Release. In addition, you should be seated in the
driver's seat with your foot firmly on the brake
pedal when activating the Manual Park Release.
Activating the Manual Park Release will allow
your vehicle to roll away if it is not secured by the
parking brake, or by proper connection to a tow
vehicle. Activating the Manual Park Release on
an unsecured vehicle could lead to serious
injury or death for those in or around the vehicle.
7

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IN CASE OF EMERGENCY243
FREEING A STUCK VEHICLE
If your vehicle becomes stuck in mud, sand, or
snow, it can often be moved using a rocking
motion. Turn the steering wheel right and left to
clear the area around the front wheels. For
vehicles with automatic transmission, push and
hold the lock button on the gear selector. Then
shift back and forth between DRIVE and REVERSE
(with automatic transmission) or FIRST gear and
REVERSE (with manual transmission), while gently
pressing the accelerator. Use the least amount of
accelerator pedal pressure that will maintain the
rocking motion, without spinning the wheels or
racing the engine.
NOTE:For vehicles with automatic transmission: Shifts
between DRIVE and REVERSE can only be
achieved at wheel speeds of 5 mph (8 km/h) or
less. Whenever the transmission remains in
NEUTRAL for more than two seconds, you must
press the brake pedal to engage DRIVE or
REVERSE.
Push the ESC OFF button to place the Electronic
Stability Control (ESC) system in “Partial OFF”
mode, before rocking the vehicle Ú page 180.
Once the vehicle has been freed, push the ESC OFF
button again to restore “ESC On” mode.
CAUTION!
Racing the engine or spinning the wheels may
lead to transmission overheating and failure.
Allow the engine to idle with the transmission in
NEUTRAL for at least one minute after every five
rocking-motion cycles. This will minimize
overheating and reduce the risk of clutch or
transmission failure during prolonged efforts to
free a stuck vehicle.
WARNING!
Fast spinning tires can be dangerous. Forces
generated by excessive wheel speeds may
cause damage, or even failure, of the axle and
tires. A tire could explode and injure someone.
Do not spin your vehicle's wheels faster than
30 mph (48 km/h) or for longer than 30
seconds continuously without stopping when
you are stuck and do not let anyone near a
spinning wheel, no matter what the speed.
CAUTION!
When “rocking” a stuck vehicle by shifting
between DRIVE / FIRST gear and REVERSE, do
not spin the wheels faster than 15 mph
(24 km/h), or drivetrain damage may result.
Revving the engine or spinning the wheels too
fast may lead to transmission overheating and
failure. It can also damage the tires. Do not
spin the wheels above 30 mph (48 km/h)
while in gear (no transmission shifting occur -
ring).
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262SERVICING AND MAINTENANCE
Under normal operating conditions, the catalytic
converter will not require maintenance. However, it
is important to keep the engine properly tuned to
ensure proper catalyst operation and prevent
possible catalyst damage.
NOTE:Intentional tampering with emissions control
systems can result in civil penalties being
assessed against you.
In unusual situations involving grossly
malfunctioning engine operation, a scorching odor
may suggest severe and abnormal catalyst
overheating. If this occurs, stop the vehicle, turn off
the engine and allow it to cool. Service, including a
tune-up to manufacturer's specifications, should
be obtained immediately.
To minimize the possibility of catalytic converter
damage:
Do not shut off the engine or interrupt the igni-
tion when the transmission is in gear and the
vehicle is in motion.
Do not try to start the engine by pushing or
towing the vehicle.
Do not idle the engine with any spark plug wires
disconnected or removed, such as when diag -
nostic testing, or for prolonged periods during
very rough idle or malfunctioning operating
conditions.
NOTE:The vehicle exhaust system may be equipped with
an Electronic Exhaust Valve (EEV) system, if the
exhaust system is replaced with aftermarket
products a Malfunction Indicator Lamp (MIL) will
illuminate.
COOLING SYSTEM
Coolant Checks
Check engine coolant (antifreeze) protection every
12 months (before the onset of freezing weather,
where applicable). If the engine coolant is dirty, the
system should be drained, flushed, and refilled
with fresh Organic Additive Technology (OAT)
coolant (conforming to MS.90032) by an
authorized dealer. Check the front of the radiator
for any accumulation of bugs, leaves, etc. If dirty,
clean by gently spraying water from a garden hose
vertically down the face of the condenser.
Check the coolant recovery bottle tubing for brittle
rubber, cracking, tears, cuts, and tightness of the
connection at the bottle and radiator. Inspect the
entire system for leaks. DO NOT REMOVE THE
COOLANT PRESSURE CAP WHEN THE COOLING
SYSTEM IS HOT.
Cooling System — Drain, Flush And Refill
NOTE:Some vehicles require special tools to add coolant
properly. Failure to fill these systems properly
could lead to severe internal engine damage. If any
coolant is needed to be added to the system
please contact an authorized dealer.
WARNING!
You or others can be badly burned by hot
engine coolant (antifreeze) or steam from your
radiator. If you see or hear steam coming from
under the hood, do not open the hood until the
radiator has had time to cool. Never open a
cooling system pressure cap when the radi -
ator or coolant bottle is hot.
Keep hands, tools, clothing, and jewelry away
from the radiator cooling fan when the hood is
raised. The fan starts automatically and may
start at any time, whether the engine is
running or not.
When working near the radiator cooling fan,
disconnect the fan motor lead or turn the igni -
tion to the OFF mode. The fan is temperature
controlled and can start at any time the igni -
tion is in the ON mode.

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288SERVICING AND MAINTENANCE
(Continued)
TIRES — GENERAL INFORMATION
Tire Pressure
Proper tire inflation pressure is essential to the
safe and satisfactory operation of your vehicle.
Four primary areas are affected by improper tire
pressure:
Safety
Fuel Economy
Tread Wear
Ride Comfort and Vehicle Stability
Safety Both underinflation and overinflation affect the
stability of the vehicle and can produce a feeling of
sluggish response or over responsiveness in the
steering.
NOTE:
Unequal tire pressures from side to side may
cause erratic and unpredictable steering
response.
Unequal tire pressure from side to side may
cause the vehicle to drift left or right.
Fuel Economy
Underinflated tires will increase tire rolling
resistance resulting in higher fuel consumption. Tread Wear
Improper cold tire inflation pressures can cause
abnormal wear patterns and reduced tread life,
resulting in the need for earlier tire replacement.
Ride Comfort And Vehicle Stability
Proper tire inflation contributes to a comfortable
ride. Overinflation produces a jarring and
uncomfortable ride.
Tire Inflation Pressures
The proper cold tire inflation pressure is listed on
the driver's side B-pillar or rear edge of the driver's
side door.
At least once a month:
Check and adjust tire pressure with a good
quality pocket-type pressure gauge. Do not
make a visual judgment when determining
proper inflation. Tires may look properly inflated
even when they are underinflated.
Inspect tires for signs of tire wear or visible
damage.
WARNING!
Improperly inflated tires are dangerous and
can cause collisions.
Underinflation increases tire flexing and can
result in overheating and tire failure.
Overinflation reduces a tire's ability to cushion
shock. Objects on the road and chuckholes
can cause damage that result in tire failure.
Overinflated or underinflated tires can affect
vehicle handling and can fail suddenly,
resulting in loss of vehicle control.
Unequal tire pressures can cause steering
problems. You could lose control of your
vehicle.
Unequal tire pressures from one side of the
vehicle to the other can cause the vehicle to
drift to the right or left.
Always drive with each tire inflated to the
recommended cold tire inflation pressure.
WARNING!
CAUTION!
After inspecting or adjusting the tire pressure,
always reinstall the valve stem cap. This will
prevent moisture and dirt from entering the
valve stem, which could damage the valve stem.

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314 Corrosion Protection
...................................... 298Cruise Control.................................................. 93Cruise Control (Speed Control)........................ 94Cruise Light.............................................. 75, 76Customer Assistance..................................... 308Customer Programmable Features................120Cybersecurity................................................. 119
D
Daytime Running Lights................................... 42Dealer Service............................................... 254Deck Lid Power Release............................................ 59Defroster, Windshield.................................... 223De-Icer, Remote Start...................................... 20Delay (Intermittent) Wipers.............................. 46Deleting A Phone........................................... 155Diagnostic System, Onboard........................... 76Dimmer SwitchHeadlight..................................................... 42DipsticksOil (Engine)................................................ 253Disabled Vehicle Towing................................ 244Disc Drive...................................................... 148Disconnecting................................................ 155DisposalAntifreeze (Engine Coolant)....................... 264Disturb........................................................... 157
Door Ajar.......................................................... 71Door Ajar Light................................................. 71Door LocksAutomatic.................................................... 24Doors............................................................... 21Drag & Drop.................................................. 138Drive Modes.................................................. 173Driver Memory Presets................................. 145Driver’s Seat Back Tilt...................................... 29DrivingThrough Flowing, Rising, Or Shallow Standing Water
................................................... 118
E
Electric Brake Control System....................... 179Anti-Lock Brake System............................ 178Electronic Roll Mitigation................. 179, 183Electric Remote Mirrors................................... 37Electrical Power Outlets................................... 54
Electronic Power Distribution Center (Fuses)... 268
Electronic Speed Control (Cruise Control)........ 94Electronic Stability Control (ESC).................. 180Electronic Throttle Control Warning Light......... 71Emergency, In Case OfFreeing Vehicle When Stuck..................... 243Jacking..................................................... 229Jump Starting......................... 238, 239, 240Towing...................................................... 244
Emission Control System Maintenance............77Engine.................................................. 251, 252Air Cleaner................................................ 256Block Heater................................................81Break-In Recommendations........................82Checking Oil Level.................................... 253Compartment.................................. 251, 252Compartment Identification...................... 251Coolant (Antifreeze).................................. 262Cooling...................................................... 262Exhaust Gas Caution................................ 225Fails To Start................................................81Flooded, Starting.........................................81Fuel Requirements................................... 302Jump Starting......................... 238, 239, 240Oil...........................................255, 305, 306Oil Filler Cap............................................. 251Oil Filter.................................................... 256Oil Selection..................................... 255, 305Oil Synthetic.............................................. 255Overheating.............................................. 241Starting.................................................78, 79
Enhanced Accident Response Feature... 206, 245
Ethanol.......................................................... 303Exhaust Gas Cautions................................... 225Exhaust System................................... 225, 261Exterior Lighting...............................................41Exterior Lights........................................ 41, 225

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318 Materials Added To
................................... 256Pressure Warning Light............................... 71Recommendation............................ 255, 305Synthetic................................................... 255Viscosity.................................................... 305Onboard Diagnostic System............................ 76Operating Precautions..................................... 76Operator ManualOwner's Manual........................................ 311Outside Rearview Mirrors................................ 37Overheating, Engine...................................... 241
P
Paddle Shift Mode........................................... 91Paddle Shifters................................................ 91Paint Care...................................................... 298Pair (Link) Uconnect Phone To A
Mobile Phone
b
......................................... 152Parking Brake.................................................. 82ParkSense System, Rear............................... 103Passenger SeatEasy Entry................................................... 34Passing Light................................................... 43Performance.................................................... 65Performance Shift Indicator............................. 64Personalized Main Menu Bar........................ 138
Pets.............................................................. 223Phone Mode................................................. 150Pinch Protection.............................................. 57Placard, Tire And Loading Information.......... 285PowerBrakes...................................................... 301Deck Lid Release......................................... 59Distribution Center (Fuses)....................... 272Door Locks.................................................. 22Mirrors......................................................... 37Outlet (Auxiliary Electrical Outlet)................ 54Seats........................................................... 31Steering....................................................... 93Sunroof........................................................ 56Tilt/Telescoping Steering Column................ 25Windows...................................................... 56Power SeatsForward....................................................... 31Lumbar........................................................ 31Rearward..................................................... 31Power Steering Fluid..................................... 307Pregnant Women And Seat Belts.................. 197Preparation For Jacking................................ 230Presets......................................................... 145PretensionersSeat Belts................................................. 198Programmable Features............................... 120
R
Radial Ply Tires.............................................. 289Radiator Cap (Coolant Pressure Cap)............ 264RadioPresets..................................................... 145Radio Controls.............................................. 140Radio Mode................................................... 140Radio Operation................................... 140, 177Radio Remote Controls................................. 139Rain Sensitive Wiper System...........................47Rear Camera................................................. 108Rear ParkSense System................................ 103Rear Seats, Folding..........................................30Recreational Towing...................................... 117Reformulated Gasoline................................. 303Refrigerant.................................................... 258Release, Hood..................................................58Reminder, Lights On........................................43Reminder, Seat Belt...................................... 194Remote ControlStarting System...........................................17Remote Keyless Entry......................................13Arm The Alarm.............................................20Programming Additional Key Fobs...............15Unlatch The Trunk.......................................14Remote Sound System (Radio) Control......... 139

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