2023 DODGE HORNET overheating

38GETTING TO KNOW YOUR VEHICLE
Non-Rolling Code Garage Door Opener Final Steps

1. Push and hold the programmed HomeLink® button
and observe the HomeLink® indicator light. If the
HomeLink® indicator light stays on constantly,
programming is complete.

2. Push the programmed HomeLink® button to confirm that the garage door opener motor operates. If the
garage door opener motor does not operate, repeat
the steps from the beginning.PROGRAMMING HOMELINK® TO A
M
ISCELLANEOUS DEVICE
The procedure on how to program HomeLink® to a
miscellaneous device follows the same procedure as
programming to a garage door opener
Úpage 130.
Be sure to determine if the device has a rolling code, or
non-rolling code before beginning the programming
process.
NOTE:Canadian Radio Frequency (RF) laws require transmitter
signals to time-out (or quit) after several seconds of trans -
mission, 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,
proceed as follows. 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 (RF) 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.

NOTE:For vehicles equipped with Keyless Enter ‘n Go™, place
the ignition in the RUN position. Make sure while
programming HomeLink® with the engine on that your
vehicle is outside of your garage, or that the garage door
remains open at all times.
WARNING!
 Your motorized door or gate will open and close while
you are programming the universal transmitter. Do
not program the transmitter if people or pets are in
the path of the door or gate.
 Do not run your vehicle in a closed garage or
confined area while programming the transmitter.
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.

23_GG_OM_EN_USC_t.book Page 38

GETTING TO KNOW YOUR VEHICLE49
Combine Modes
Dual Level Combination
Front Defrost and Panel Mode
Tri-Level Combination
Front Defrost, Panel Mode, and Floor Mode
Climate Control OFF Button
Press and release this button on the
touchscreen, or push and release the
button on the faceplate 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 (if equipped) on the
Automatic Temperature Control (ATC) Panel.

2. Next, adjust the temperature you would like the system to maintain by adjusting the temperature
control buttons. Once the desired temperature is
displayed, the system achieves and automatically
maintains that comfort level.
3. When the system is set up for your comfort level, it is not necessary to change the settings. You 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
by selecting the US/Metric customer-programmable
feature.
To provide you with maximum comfort in the Automatic
mode during cold start-ups, the blower fan remains on low
until the engine warms up. The blower increases 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 on the steering wheel. After the beep,
say one of the following commands:
 “Set the driver temperature to 70 degrees ”
 “Set the passenger temperature to 70 degrees ”
Did You Know: 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.
The driver or front passenger can combine
two or three of the modes described by
selecting them individually on the climate
control screen. Combine modes by
pressing each icon on the touchscreen.
2

23_GG_OM_EN_USC_t.book Page 49

54GETTING TO KNOW YOUR VEHICLE
The wireless charging pad is equipped with an anti-slip
mat to hold your mobile phone in place, and an LED
indicator light.
Place the device inside the prepared area delimited in the
mat as shown in the image. Incorrect positioning will
prevent the phone from charging.

Correct Phone Position

LED Indicator Status:
No Light: Charging pad is idle or searching for a device.
Device may not be compatible with the Qi
® standard.
 Blue Light: Device is detected and is charging.
 Red Light/Flashing: Internal error, or foreign object is
detected.
 Green Light: Device has completed battery charging
(if device is equipped to transmit this information). Important Notes Regarding This Vehicle’s Wireless
Charging Pad:

The presence of the NFC function active on a smart -
phone could signal malfunction anomalies.
 The ignition must be in the ON/RUN position in order
for the phone to charge.
 To avoid interference with the key fob search, the wire -
less charging pad will stop charging when any door is
opened.
 Be sure to place the mobile device correctly (display
facing upward, and phone not covering the LED) on the
wireless charging pad.
 Wireless charging is not as fast as when the phone is
connected to a wired charger.
 The phone’s protective case must be removed when
placed on the wireless charging pad.
 iPhone
® 12 (including iPod®) is equipped with soft -
ware to protect the device from overheating. When the
software is active, the rate of charge is slowed down to
protect the device.
 Phones must always be placed on the wireless
charging pad within the outline shown on the pad so
that its charging parts connect with the charging coils
of the system. Movement of the phone during charging
may prevent or slow the rate of charge. 
Having multiple applications open on the phone while
charging will reduce the charging efficiency, and may
even shut down an application that is actively running
(i.e. Apple CarPlay
®). This may also cause the phone to
overheat.
 Wireless chargers may implement certain methods to
prevent the phone from overheating during charging
such as slowing down the rate of charge. In certain
instances, the device may shut down for a brief period
of time (when the device reaches a certain tempera -
ture). If this happens, it does not mean there is a fault
with the wireless charging pad. This may just be a
protective measure to prevent damage to the phone.
 The use of multiple wireless functions at the same time
(wireless charging, Apple CarPlay
®, Android Auto™)
could cause the device to overheat, resulting in limita -
tion of the functions or it turning off. In this case, it is
recommended to connect the system using t
he USB port.
 Do not place the key fob or any other type of metal/
magnetized object inside the mobile phone housing or
near the wireless charging pad.
CAUTION!
The key fob should not be placed on the charging pad
or within 6 inches (15 cm) of it. Doing so can cause
excessive heat buildup and damage to the fob. Placing
the fob in close proximity of the charging pad blocks the
fob from being detected by the vehicle and prevents the
vehicle from starting.

23_GG_OM_EN_USC_t.book Page 54

STARTING AND OPERATING87
When exiting the vehicle, always:

1. Apply the parking brake.

2. Shift the transmission into PARK.
3. Turn the engine off.
4. Remove the key fob from the vehicle.
NOTE:Block the wheels with a wedge or a stone if the vehicle is
parked on a steep slope.
The following indicators should be used to ensure that you
have properly engaged the transmission into the PARK
position:
When shifting into PARK, push the lock button on the
gear selector, and firmly move the selector all the way
forward until it stops and is fully seated.
 Look at the transmission gear position display and
verify that it indicates the PARK position (P).
 With the brake pedal released, verify that the gear
selector will not move out of PARK.
REVERSE (R)
This range is for moving the vehicle backward. Shift into
REVERSE only after the vehicle has come to a complete
stop.
NEUTRAL (N)
Use this range when the vehicle is standing for prolonged
periods with the engine running. The engine may be
started in this range. Apply the parking brake and shift the
transmission into PARK if you must exit the vehicle.
DRIVE (D)
This range should be used for most city and highway
driving. It provides the smoothest upshifts and downshifts,
and the best fuel economy. The transmission
automatically upshifts through all forward gears. If the transmission temperature exceeds normal operating
limits, the transmission controller may modify the
transmission shift schedule, reduce engine torque, and/or
expand the range of torque converter clutch engagement.
This is done to prevent transmission damage due to
overheating.
If the transmission becomes extremely hot, the
Transmission Temperature Warning Light may illuminate,
and the transmission may operate differently until the
transmission cools down.
During cold temperatures, transmission operation may be
modified depending on engine and/or transmission
temperature as well as vehicle speed. This feature
improves warm-up time of the engine and transmission to
achieve maximum efficiency. Engagement of the torque
converter clutch (and shifts into EIGHTH or NINTH gear),
are inhibited until the engine and/or transmission is
warm. Normal operation will resume once the
temperature(s) have risen to a suitable level.
TRANSMISSION LIMP HOME MODE
Transmission function is monitored electronically for
abnormal conditions. If a condition is detected that could
result in transmission damage, Transmission Limp Home
Mode is activated. In this mode, the transmission may
operate only in a fixed gear, or may remain in NEUTRAL
(N). The Malfunction Indicator Light (MIL) may be
illuminated. Limp Home Mode may allow the vehicle to be
driven to an authorized dealer for service without
damaging the transmission.
CAUTION!

Before moving the transmission gear selector out of
PARK, you must turn the ignition to the ON/RUN posi -
tion, and also press the brake pedal. Otherwise,
damage to the gear selector could result.
 DO NOT race the engine when shifting from PARK or
NEUTRAL into another gear range, as this can
damage the drivetrain.WARNING!
Do not coast in NEUTRAL and never turn off the ignition
to coast down a hill. These are unsafe practices that
limit your response to changing traffic or road
conditions. You might lose control of the vehicle and
have a collision.
CAUTION!
Towing the vehicle, coasting, or driving for any other
reason with the transmission in NEUTRAL can cause
severe transmission damage.
For Recreational Towing
Úpage 126.
For Towing A Disabled Vehicle
Úpage 220.
4

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212IN CASE OF EMERGENCY
(Continued)
INFLATION PROCEDURENOTE:Always follow applicable state and provincial laws. Contact
state and provincial Highway Safety offices for additional
details.
To use your Tire Inflator Kit, proceed as follows:

1. Stop the vehicle in a position where you can repair
the tire safely. Activate the Hazard Warning Flashers
to make other drivers aware of your presence.

2. If equipped, use all available safety equipment required by law.
3. Verify that the valve stem (on the wheel with the deflated tire) is in a position that is near to the
ground. This will allow the Tire Inflator Kit hoses to
reach the valve stem and keep the tire repair kit flat
on the ground.
4. Place the gear selector to PARK (P).
5. Apply the Electric Park Brake and cycle the engine OFF.
6. Insert the sealant cartridge containing the sealing fluid in the proper compressor holder, pushing down
hard. Unscrew the tire valve cap, take out the filler
tube and tighten the fitting on the tire valve.
WARNING!
The information required by current legislation is
shown on the kit cartridge label. Read the cartridge
label before use, avoid improper use.
 Do not attempt to seal a tire on the side of the
vehicle closest to traffic. Pull far enough off the
road to avoid the danger of being hit when using
the Tire Service Kit.
 Do not remove foreign bodies from the tire.
 Do not leave the compressor running for more than
20 minutes, this may cause overheating.
 Do not use the Tire Service Kit or drive the vehicle
under the following circumstances:
 If the puncture in the tire tread is approximately
1/4 inch (6 mm) or larger.
 If the tire has any sidewall damage.
 If the tire has any damage from driving with
extremely low tire pressure.
 If the tire has any damage from driving on a
flat tire.
 If the wheel has any damage.
 If you are unsure of the condition of the tire or
the wheel.
Keep the Tire Service Kit away from open flames or
heat sources.
 A loose Tire Service Kit thrown forward in a collision
or hard stop could endanger the occupants of the
vehicle. Always stow the Tire Service Kit in the place
provided. Failure to follow these warnings can result
in injuries that are serious or fatal to you, your
passengers, and others around you.
 Take care not to allow the contents of the Tire
Service Kit to come in contact with hair, eyes, or
clothing. Tire Service Kit sealant is harmful if inhaled,
swallowed, or absorbed through the skin. It causes
skin, eye, and respiratory irritation. Flush immedi -
ately with plenty of water if there is any contact with
eyes or skin. Change clothing as soon as possible, if
there is any contact with clothing.
 Tire Service Kit sealant solution contains latex. In
case of an allergic reaction or rash, consult a physi -
cian immediately. Keep the Tire Service Kit out of
reach of children. If swallowed, rinse mouth immedi -
ately with plenty of water and drink plenty of water.
Do not induce vomiting! Consult a physician immedi -
ately.
WARNING!

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218IN CASE OF EMERGENCY
IF YOUR ENGINE OVERHEATS
If the vehicle is overheating, it will need to be serviced by
an authorized dealer.
Potential signs of vehicle overheating:
Temperature gauge is at HOT (H)
 Strong smell of coolant
 White smoke coming from engine or exhaust
 Coolant bottle coolant has bubbles present If the temperature gauge is moving towards or close to the
HOT (H) position, you can reduce the potential for
overheating by taking the appropriate action.

On highways — slow down.
 In city traffic — while stopped, place the transmission in
NEUTRAL (N), but do not increase the engine idle speed
while preventing vehicle motion with the brakes.
 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 supple -
ment to the radiator and aids in removing heat from the
engine cooling system.
GEAR SELECTOR OVERRIDE
If a malfunction occurs, and the gear selector cannot be
moved out of the PARK position, you can use the following
procedure to temporarily move the gear selector:

1. First turn the engine OFF.

2. Apply the parking brake.
3. Grab the boot material of the gear selector and pull up to carefully separate the gear selector bezel and
boot assembly from the center console.

Gear Selector Bezel

4. Press and maintain firm pressure on the brake pedal.
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 “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” and
you hear continuous chimes, turn the engine off
immediately and call for service.

23_GG_OM_EN_USC_t.book Page 218

IN CASE OF EMERGENCY219
5. Locate the gear selector override access (at the right
rear corner of the gear selector assembly). Using a
small screwdriver or similar tool, push and hold the
override release lever down.

Gear Selector Override Access Location

6. Move the gear selector to the NEUTRAL (N) position.
7. The vehicle may then be started in NEUTRAL.
8. Reinstall the gear selector boot.
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. Push and hold the button on the gear selector.
Then shift back and forth between DRIVE (D) and
REVERSE (R) while gently pressing the accelerator.
NOTE:Shifts between DRIVE (D) and REVERSE (R) can only be
achieved at wheel speeds of 5 mph (8 km/h) or less.
Whenever the transmission remains in NEUTRAL (N) for
more than two seconds, you must press the brake pedal
to engage DRIVE (D) or REVERSE (R).
Use the least amount of accelerator pedal pressure that
will maintain the rocking motion without spinning the
wheels or racing the engine.
NOTE:Push the ESC OFF button (if necessary), to place the Elec -
tronic Stability Control (ESC) system in the “Off” mode,
before rocking the vehicle
Úpage 156. Once the vehicle
has been freed, push the ESC OFF button again to restore
“ESC On” mode.
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!
 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.
 When “rocking” a stuck vehicle by shifting between
DRIVE 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 transmis -
sion shifting occurring).
7

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SERVICING AND MAINTENANCE233
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 specifications, should
be obtained immediately.
To minimize the possibility of catalytic converter damage:
Do not interrupt the ignition when the transmission is
in gear and the vehicle is in motion.
 Do not try to start the vehicle by pushing or towing the
vehicle.
 Do not idle the engine with any ignition components
disconnected or removed, such as during diagnostic
testing, or for prolonged periods during very rough idle
or malfunctioning operating conditions.
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 or rusty in
appearance, the system should be drained, flushed and
refilled with fresh engine coolant. Check the front of
the A/C condenser 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.
Cooling System — Drain, Flush And Refill
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.
If the engine coolant (antifreeze) is dirty or contains visible
sediment, have an authorized dealer clean and flush with
OAT coolant (conforming to MS.90032).
Refer to the Maintenance Plan for the proper
maintenance intervals
Úpage 224.
Selection Of Coolant
For further information Úpage 269.
NOTE:
Mixing of engine coolant (antifreeze) other than speci-
fied Organic Additive Technology (OAT) engine coolant,
may result in engine damage and may decrease corro -
sion protection. OAT engine coolant is different and
should not be mixed with Hybrid Organic Additive Tech -
nology (HOAT) engine coolant or any “globally compat -
ible” coolant. If a non-OAT engine coolant is introduced
into the cooling system in an emergency, the cooling
system will need to be drained, flushed, and refilled
with fresh OAT coolant (conforming to MS.90032), by
an authorized dealer as soon as possible.

 Do not use water alone or alcohol-based engine coolant
products. Do not use additional rust inhibitors or
anti-rust products, as they may not be compatible with
the radiator engine coolant and may plug the radiator.

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 radiator 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, discon -
nect the fan motor lead or turn the ignition to the OFF
mode. The fan is temperature controlled and can
start at any time the ignition is in the ON mode.
8

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