2021 DODGE CHALLENGER check engine

5
TRAILER TOWING ............................................... 111 Common Towing Definitions ......................... 111Trailer Hitch Classification ............................ 113
Trailer Towing Weights (Maximum Trailer
Weight Ratings) ............................................. 113
Trailer And Tongue Weight ........................... 114
Towing Requirements ................................... 114Towing Tips ................................................... 116
RECREATIONAL TOWING
(BEHIND MOTORHOME) ..................................... 117
DRIVING TIPS ....................................................... 117
Driving On Slippery Surfaces ........................ 117
Driving Through Water ................................. 118
MULTIMEDIA
UCONNECT SYSTEMS ......................................... 119
CYBERSECURITY ................................................. 119
UCONNECT SETTINGS ........................................ 120Customer Programmable Features .............. 120
UCONNECT INTRODUCTION................................ 135
System Overview .......................................... 135
Drag & Drop Menu Bar ................................. 138Safety And General Information ................... 138
UCONNECT MODES ............................................. 139
Steering Wheel Audio Controls ..................... 139
Radio Mode .................................................. 140
Media Mode .................................................. 148
Phone Mode ................................................. 150 ANDROID AUTO™ & APPLE CARPLAY® —
IF EQUIPPED ........................................................ 161
Android Auto™ .............................................. 161
Apple CarPlay® ............................................. 163Android Auto™ And Apple CarPlay®
Tips And Tricks .............................................. 165
PERFORMANCE PAGES...................................... 165
Home.............................................................. 166
Timers ............................................................ 168
Gauges ........................................................... 170
G-Force........................................................... 171
Engine ............................................................ 172
Dynamometer (Dyno) .................................... 172
DODGE DRIVE MODES — IF EQUIPPED ............ 173
Performance Control — If Equipped ............. 173
RADIO OPERATION AND MOBILE PHONES ..... 177
Regulatory And Safety Information .............. 177
SAFETY
SAFETY FEATURES .............................................. 178 Anti-Lock Brake System (ABS) ..................... 178
Electronic Brake Control (EBC) System ...... 179
AUXILIARY DRIVING SYSTEMS.......................... 184
Blind Spot Monitoring (BSM) —
If Equipped..................................................... 184Forward Collision Warning (FCW) Operation —
If Equipped..................................................... 187Tire Pressure Monitoring System (TPMS) .... 189 OCCUPANT RESTRAINT SYSTEMS ................... 192
Occupant Restraint Systems Features ....... 192
Important Safety Precautions ...................... 192
Seat Belt Systems ........................................ 193
Supplemental Restraint Systems (SRS) ...... 199Child Restraints ............................................ 208
SAFETY TIPS ........................................................ 223
Transporting Passengers.............................. 223
Transporting Pets ......................................... 223
Safety Checks You Should Make Inside
The Vehicle ................................................... 223
Periodic Safety Checks You Should Make
Outside The Vehicle ...................................... 225
Exhaust Gas................................................... 225
Carbon Monoxide Warnings ......................... 225
IN CASE OF EMERGENCY
HAZARD WARNING FLASHERS ......................... 226
ASSIST AND SOS MIRROR — IF EQUIPPED...... 226
JACKING AND TIRE CHANGING ......................... 229 Preparations For Jacking .............................. 230
Jack Location/Spare Tire Stowage ............. 230
Jacking And Changing A Tire ....................... 231
TIRE SERVICE KIT — IF EQUIPPED ..................... 234
Tire Service Kit Storage ................................ 234
Tire Service Kit Components And Operation ...234

Tire Service Kit Usage Precautions .............. 235
Sealing A Tire With Tire Service Kit .............. 236

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6
JUMP STARTING .................................................. 238 Preparations For Jump Start......................... 239Jump Starting Procedure .............................. 240
IF YOUR ENGINE OVERHEATS ........................... 241
MANUAL PARK RELEASE — 8 – SPEED
TRANSMISSION .................................................. 241
FREEING A STUCK VEHICLE ............................... 243
TOWING A DISABLED VEHICLE .......................... 244 Rear-Wheel Drive (RWD) Models.................. 245
ENHANCED ACCIDENT RESPONSE SYSTEM
(EARS) .................................................................. 245
EVENT DATA RECORDER (EDR) ......................... 245
SERVICING AND MAINTENANCE
SCHEDULED SERVICING .................................... 246
3.6L And 5.7L Engines ................................. 246
ENGINE COMPARTMENT .................................... 251
3.6L Engine ................................................... 2515.7L Engine ................................................... 252Checking Oil Level ......................................... 253
Adding Washer Fluid ..................................... 253
Maintenance-Free Battery ............................ 254
Pressure Washing ......................................... 254 VEHICLE MAINTENANCE..................................... 254
Engine Oil ...................................................... 255
Engine Oil Filter ............................................. 256Engine Air Cleaner Filter .............................. 256Air Conditioner Maintenance ....................... 257
Accessory Drive Belt Inspection ................... 259Body Lubrication ........................................... 260Windshield Wiper Blades.............................. 260Exhaust System ............................................. 261Cooling System .............................................. 262
Brake System ............................................... 265
Clutch Hydraulic System — Manual
Transmission (If Equipped)........................... 266Manual Transmission — If Equipped............ 266
Automatic Transmission — If Equipped ....... 266
All Wheel Drive (AWD) — If Equipped .......... 267
Rear Axle ........................................................ 267Fuses.............................................................. 267
Bulb Replacement ........................................ 276 TIRES ..................................................................... 279
Tire Safety Information ................................ 279Tires — General Information ........................ 288Tire Types....................................................... 291Spare Tires — If Equipped ............................ 292
Wheel And Wheel Trim Care ........................ 294Snow Traction Devices.................................. 295Tire Rotation Recommendations ................. 296
DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES ...................................... 296
Treadwear...................................................... 297
Traction Grades ............................................. 297Temperature Grades..................................... 297
VEHICLE STORAGE .............................................. 298
BODYWORK .......................................................... 298 Protection From Atmospheric Agents .......... 298
Body And Underbody Maintenance ............. 298
Preserving The Bodywork ............................. 298
INTERIORS ........................................................... 299
Seats And Fabric Parts ................................. 299
Plastic And Coated Parts .............................. 299
Leather Surfaces........................................... 300
Glass Surfaces ............................................. 300

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11
Trunk Open Warning Light Úpage 71
Vehicle Security Warning Light Úpage 72
Yellow Warning Lights
Engine Check/Malfunction Indicator Warning Light (MIL)
Úpage 73
Electronic Stability Control (ESC) Active Warning Light Úpage 72
Electronic Stability Control (ESC) OFF Warning Light Úpage 73
Tire Pressure Monitoring System (TPMS) Warning Light Úpage 74
Anti-Lock Brake System (ABS) Warning Light Úpage 72
Red Warning Lights
Low Fuel Warning Light
Úpage 73
Service Forward Collision Warning (FCW) Light Úpage 74
Loose Fuel Filler Cap Warning Light Úpage 73
Service AWD Warning Light Úpage 74
Service Adaptive Cruise Control Warning Light Úpage 72
Yellow Indicator Lights
Forward Collision Warning OFF Indicator Light
Úpage 75
Yellow Warning Lights
1

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16GETTING TO KNOW YOUR VEHICLE
SENTRY KEY
The Sentry Key Immobilizer system prevents
unauthorized vehicle operation by disabling the
engine. The system does not need to be armed or
activated. Operation is automatic, regardless of
whether the vehicle is locked or unlocked.
The system uses a key fob, keyless push button
ignition and a Radio Frequency (RF) receiver to
prevent unauthorized vehicle operation. Therefore,
only key fobs that are programmed to the vehicle
can be used to start and operate the vehicle. The
system cannot reprogram a key fob obtained from
another vehicle.
After placing the ignition switch in the ON/RUN
position, the Vehicle Security Light will turn on for
three seconds for a bulb check. If the light remains
on after the bulb check, it indicates that there is a
problem with the electronics. In addition, if the light
begins to flash after the bulb check, it indicates
that someone attempted to start the engine with
an invalid key fob. In the event that a valid key fob
is used to start the engine but there is an issue
with the vehicle electronics, the engine will start
and shut off after two seconds.
If the Vehicle Security Light turns on during normal
vehicle operation (vehicle running for longer than
10 seconds), it indicates that there is a fault in the electronics. Should this occur, have the vehicle
serviced as soon as possible by an authorized
dealer.
All of the key fobs provided with your new vehicle
have been programmed to the vehicle electronics
Ú
page 311.
IGNITION SWITCH
KEYLESS ENTER ‘N GO™ IGNITION
This feature allows the driver to operate the
ignition switch with the push of a button as long as
the key fob is in the passenger compartment.
The START/STOP ignition button has four
operating positions, three of which are labeled and
will illuminate when in position. The three positions
are OFF, ACC, and ON/RUN. The fourth position is
START. During START, RUN will illuminate.
START/STOP Ignition Button

The push button ignition can be placed in the
following modes:
OFF The engine is stopped.
Some electrical devices (e.g. power locks,
alarm, etc.) are still available.
ACC
Engine is not started.
Some electrical devices are available (e.g.
power windows, etc.)
CAUTION!
The Sentry Key Immobilizer system is not
compatible with some aftermarket Remote Start
systems. Use of these systems may result in
vehicle starting problems and loss of security
protection.
1 — OFF
2 — ACC
3 — ON/RUN

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62GETTING 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 Ú page 62.
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 satisfactorily.
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 oper -
ating 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.
NOTE:The hard telltales will illuminate 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.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. It is recommended to call an authorized
dealer for service if your vehicle overheats
Ú page 262.
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 PANEL69

Turning on all possible vehicle electrical loads
(e.g. HVAC to max settings, exterior and interior
lights, overloaded power outlets +12 Volts,
115 Volts AC, USB ports) during certain driving
conditions (city driving, towing, frequent stop-
ping).

Installing options like additional lights, upfitter
electrical accessories, audio systems, alarms
and similar devices.
Unusual driving cycles (short trips separated by
long parking periods).
The vehicle was parked for an extended period
of time (weeks, months).
The battery was recently replaced and was not
charged completely.
The battery was discharged by an electrical load
left on when the vehicle was parked.
The battery was used for an extended period
with the engine not running to supply radio,
lights, chargers, +12 Volts portable appliances
like vacuum cleaners, game consoles and
similar devices. What to do when an electrical load reduction
action message is present (“Battery Saver On” or
“Battery Saver Mode”)
During a trip:
Reduce power to unnecessary loads if possible:

Turn off redundant lights (interior or exterior)

Check what may be plugged in to power
outlets +12 Volts, 115 Volts AC, USB ports
Check HVAC settings (blower, temperature)
Check the audio settings (volume)
After a trip:
Check if any aftermarket equipment was
installed (additional lights, upfitter electrical
accessories, audio systems, alarms) and review
specifications if any (load and Ignition Off Draw
currents).
Evaluate the latest driving cycles (distance,
driving time and parking time).
The vehicle should have service performed if
the message is still present during consecutive
trips and the evaluation of the vehicle and
driving pattern did not help to identify the cause.
WARNING LIGHTS AND MESSAGES
The warning/indicator lights will illuminate in the
instrument panel together with a dedicated
message and/or acoustic signal when applicable.
These indications are indicative and precautionary
and as such must not be considered as exhaustive
and/or alternative to the information contained in
the Owner’s Manual, which you are advised to read
carefully in all cases. Always refer to the
information in this chapter in the event of a failure
indication. All active telltales will display first if
applicable. The system check menu may appear
different based upon equipment options and
current vehicle status. Some telltales are optional
and may not appear.
RED WARNING LIGHTS
Air Bag Warning Light
This warning light will illuminate to
indicate a fault with the air bag, and will
turn on for four to eight seconds as a
bulb check when the ignition is placed in
the ON/RUN or ACC/ON/RUN position. This light
will illuminate with a single chime when a fault with
the air bag has been detected, it will stay on until
the fault is cleared. If the light is either not on
during startup, stays on, or turns on while driving,
have the system inspected at an authorized dealer
as soon as possible.
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70GETTING TO KNOW YOUR INSTRUMENT PANEL
Brake Warning Light
This warning light monitors various
brake functions, including brake fluid
level and parking brake application. If
the brake light turns on it may indicate
that the parking brake is applied, that the brake
fluid level is low, or that there is a problem with the
Anti-Lock Brake System reservoir.
If the light remains on when the parking brake has
been disengaged, and the fluid level is at the full
mark on the master cylinder reservoir, it indicates
a possible brake hydraulic system malfunction or
that a problem with the Brake Booster has been
detected by the Anti-Lock Brake System (ABS) /
Electronic Stability Control (ESC) system. In this
case, the light will remain on until the condition has
been corrected. If the problem is related to the
brake booster, the ABS pump will run when
applying the brake, and a brake pedal pulsation
may be felt during each stop.
The dual brake system provides a reserve braking
capacity in the event of a failure to a portion of the
hydraulic system. A leak in either half of the dual
brake system is indicated by the Brake Warning
Light, which will turn on when the brake fluid level
in the master cylinder has dropped below a
specified level.
The light will remain on until the cause is corrected.
NOTE:The light may flash momentarily during sharp
cornering maneuvers, which change fluid level
conditions. The vehicle should have service
performed, and the brake fluid level checked.
If brake failure is indicated, immediate repair is
necessary.
Vehicles equipped with the Anti-Lock Brake System
(ABS) are also equipped with Electronic Brake
Force Distribution (EBD). In the event of an EBD
failure, the Brake Warning Light will turn on along
with the ABS Light. Immediate repair to the ABS
system is required.
Operation of the Brake Warning Light can be
checked by turning the ignition switch from the OFF
position to the ON/RUN position. The light should
illuminate for approximately two seconds. The light
should then turn off unless the parking brake is
applied or a brake fault is detected. If the light does
not illuminate, have the light inspected by an
authorized dealer. The light also will turn on when the parking brake
is applied with the ignition switch in the ON/RUN
position.
NOTE:This light shows only that the parking brake is
applied. It does not show the degree of brake appli
-
cation.
Seat Belt Reminder Warning Light
This warning light indicates when the
driver or passenger seat belt is
unbuckled. When the ignition is first
placed in the ON/RUN or ACC/ON/RUN
position and if the driver’s seat belt is unbuckled,
a chime will sound and the light will turn on. When
driving, if the driver or front passenger seat belt
remains unbuckled, the Seat Belt Reminder Light
will flash or remain on continuously and a chime
will sound Ú page 192.
Battery Charge Warning Light
This warning light will illuminate when
the battery is not charging properly. If it
stays on while the engine is running,
there may be a malfunction with the
charging system. Contact an authorized dealer as
soon as possible.
This indicates a possible problem with the
electrical system or a related component.
WARNING!
Driving a vehicle with the red brake light on is
dangerous. Part of the brake system may have
failed. It will take longer to stop the vehicle. You
could have a collision. Have the vehicle checked
immediately.

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GETTING TO KNOW YOUR INSTRUMENT PANEL71
Door Open Warning Light
This indicator will illuminate when a
door is ajar/open and not fully closed.
NOTE:If the vehicle is moving, there will also be a single
chime.
Electric Power Steering (EPS) Fault
Warning Light
This warning light will turn on when
there's a fault with the EPS system
Úpage 93.
Electronic Throttle Control (ETC) Warning
Light
This warning light will illuminate to
indicate a problem with the ETC system.
If a problem is detected while the
vehicle is running, the light will either
stay on or flash depending on the nature of the
problem. Cycle the ignition when the vehicle is
safely and completely stopped and the transmission is placed in the PARK position. The
light should turn off. If the light remains on with the
vehicle running, your vehicle will usually be
drivable; however, see an authorized dealer for
service as soon as possible.
NOTE:This light may turn on if the accelerator and brake
pedals are pressed at the same time.
If the light continues to flash when the vehicle is
running, immediate service is required and you
may experience reduced performance, an
elevated/rough idle, or engine stall and your
vehicle may require towing. The light will come on
when the ignition is placed in the ON/RUN or ACC/
ON/RUN position and remain on briefly as a bulb
check. If the light does not come on during starting,
have the system checked by an authorized dealer.
Engine Coolant Temperature Warning
Light
This warning light warns of an
overheated engine condition. If the
engine coolant temperature is too high,
this indicator will illuminate and a single
chime will sound. If the temperature reaches the
upper limit, a continuous chime will sound for four
minutes or until the engine is able to cool,
whichever comes first. If the light turns on while driving, safely pull over
and stop the vehicle. If the Air Conditioning (A/C)
system is on, turn it off. Also, shift the transmission
into NEUTRAL and idle the vehicle. If the
temperature reading does not return to normal,
turn the engine off immediately and call for service
Ú
page 241.
Trunk Open Warning Light
This indicator will illuminate when the
trunk is open and not fully closed.
NOTE:If the vehicle is moving, there will also be a single
chime.
Oil Pressure Warning Light
This warning light will illuminate to
indicate low engine oil pressure. If the
light turns on while driving, stop the
vehicle, shut off the engine as soon as
possible, and contact an authorized dealer. A
chime will sound when this light turns on.
Do not operate the vehicle until the cause is
corrected. This light does not indicate how much oil
is in the engine. The engine oil level must be
checked under the hood.
WARNING!
Continued operation with reduced assist could
pose a safety risk to yourself and others. Service
should be obtained as soon as possible.
3

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