open hood DODGE CHALLENGER 2023 User Guide

SERVICING AND MAINTENANCE237
EXHAUST SYSTEM
The best protection against carbon monoxide entry into
the vehicle body is a properly maintained engine exhaust
system.
If you notice a change in the sound of the exhaust system;
or if the exhaust fumes can be detected inside the vehicle;
or when the underside or rear of the vehicle is damaged;
have an authorized technician 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, have
the exhaust system inspected each time the vehicle is
raised for lubrication or oil change. Replace as required.
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 ignition 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 discon -
nected or removed, such as when diagnostic testing, or
for prolonged periods during very rough idle or malfunc -
tioning operating conditions.
NOTE:The vehicle exhaust system may be equipped with an Elec -
tronic Exhaust Valve (EEV) system, if the exhaust system is
replaced with aftermarket products a Malfunction Indi -
cator Lamp (MIL) will illuminate.
COOLING SYSTEM 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,
Úpage 196.
 A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be
grass or leaves coming into contact with your
exhaust system. Do not park or operate your vehicle
in areas where your exhaust system can contact
anything that can burn.
CAUTION!
The catalytic converter requires the use of unleaded
fuel only. Leaded gasoline will destroy the effective -
ness of the catalyst as an emissions control device
and may seriously reduce engine performance and
cause serious damage to the engine.
 Damage to the catalytic converter can result if your
vehicle is not kept in proper operating condition. In
the event of engine malfunction, particularly
involving engine misfire or other apparent loss of
performance, have your vehicle serviced promptly.
Continued operation of your vehicle with a severe
malfunction could cause the converter to overheat,
resulting in possible damage to the converter and
vehicle.
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
position. The fan is temperature controlled and can
start at any time the ignition is in the ON position.
8

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240SERVICING AND MAINTENANCE
BRAKE SYSTEM
In order to ensure brake system performance, all brake
system components should be inspected periodically
Úpage 224.
Fluid Level Check — Brake Master Cylinder
Check the fluid level in the master cylinder immediately if
the Brake System Warning Light indicates system failure.
Check the fluid level in the master cylinder when
performing underhood services.
Clean the top of the master cylinder area before removing
the cap. Add fluid to bring the level up to the top of the
“FULL” mark on the side of the master cylinder reservoir.
Overfilling of fluid is not recommended because it may
cause leaking in the system.
Add enough fluid to bring the level up to the requirements
described on the brake fluid reservoir. With disc brakes,
fluid level can be expected to fall as the brake pads wear.
However, low fluid level may be caused by a leak and a
checkup may be needed. Use only brake fluid that has been recommended by the
manufacturer, and has been kept in a tightly closed
container to avoid contamination from foreign matter or
moisture
Úpage 278.
CLUTCH HYDRAULIC SYSTEM — MANUAL
T
RANSMISSION (IF EQUIPPED)
The clutch hydraulic system is fed by a segregated volume
of fluid within the brake system master cylinder reservoir.
In the event of leakage or wear, use only the
manufacturer's recommended brake fluid
Úpage 278.
MANUAL TRANSMISSION — IF EQUIPPED
Fluid Level Check
Check the fluid level by removing the fill plug on the left
side of the transmission. The fluid level should be
1/4 inch (6.4mm) below the bottom of the fill hole.
Add fluid, if necessary, to maintain the proper level
Úpage 278.
Change Transmission Fluid
If contaminated with water, change the fluid immediately.
See an authorized dealer for service.
For the proper maintenance intervals
Úpage 224.
WARNING!
Riding the brakes can lead to brake failure and possibly
a collision. Driving with your foot resting or riding on the
brake pedal can result in abnormally high brake
temperatures, excessive lining wear, and possible brake
damage. You would not have your full braking capacity
in an emergency.
WARNING!
 Use only manufacturer's recommended brake fluid Úpage 278. Using the wrong type of brake fluid can
severely damage your brake system and/or impair its
performance. The proper type of brake fluid for your
vehicle is also identified on the original factory
installed hydraulic master cylinder reservoir.
 To avoid contamination from foreign matter or mois -
ture, use only new brake fluid or fluid that has been
in a tightly closed container. Keep the master
cylinder reservoir cap secured at all times. Brake
fluid in a open container absorbs moisture from the
air resulting in a lower boiling point. This may cause
it to boil unexpectedly during hard or prolonged
braking, resulting in sudden brake failure. This could
result in a collision.
 Overfilling the brake fluid reservoir can result in
spilling brake fluid on hot engine parts, causing the
brake fluid to catch fire. Brake fluid can also damage
painted and vinyl surfaces, care should be taken to
avoid its contact with these surfaces.
 Do not allow petroleum based fluid to contaminate
the brake fluid. Brake seal components could be
damaged, causing partial or complete brake failure.
This could result in a collision.
CAUTION!
Using a transmission fluid other than the
manufacturer's recommended fluid may cause
deterioration in transmission shift quality and/or
damage to the transmission
Úpage 278.

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252SERVICING AND MAINTENANCE
Replacing Exterior Bulbs
LOW BEAM HEADLAMP, HIGH BEAM
HEADLAMP — MODELS WITH HALOGEN
HEADLAMPS — IF EQUIPPED
See the following steps to replace:

1. Open the hood.

Headlamp Assembly Dust Cap Location

NOTE:Removal of the air cleaner filter housing may be necessary
prior to replacing bulbs in the headlamp assembly on the
driver side of the vehicle. 2. Remove the large dust cap from the headlamp
housing by turning it counterclockwise.
3. Turn the bulb counterclockwise, and remove.

Headlamp Location

4. Disconnect the bulb from the socket assembly and install the replacement bulb.
5. Reinstall the bulb and socket assembly into the headlamp assembly, and then turn it clockwise. 6. Reinstall the access cap making sure it is seated into
the housing and turn cap clockwise to engage locking
lugs. Visually, you should be unable to see the blue
O-ring gasket. The access cap should be uniformly
seated and you should not be able to pull the access
cap off without turning it counterclockwise.
CAUTION!
Do not touch the new bulb with your fingers. Oil
contamination will severely shorten bulb life. If the bulb
comes in contact with any oily surface, clean the bulb
with rubbing alcohol.
CAUTION!
If the access cap is not installed correctly after bulb
replacement, the lamp becomes susceptible to dust,
condensation, and water intrusion. This may ultimately
lead to an inoperative lamp. If the access cap cannot
be installed correctly, please return to an authorized
dealer for proper repair or access cap replacement if
necessary.

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288 H
Hazard Driving Through Flowing, Rising, Or Shallow Standing Water .................................... 105
Hazard Warning Flashers ............................................ 199
Head Restraints .............................................................. 34
Head Rests ...................................................................... 34
Headlights Automatic ...................................................................41
Cleaning................................................................... 270
High Beam/Low Beam Select Switch .......................40
Lights On Reminder ...................................................41
On With Wipers ..........................................................41
Passing ....................................................................... 41
Switch .........................................................................39
Time Delay..................................................................41
Washers................................................................... 230
Heated Mirrors ................................................................36 Heated Seats...................................................................31
Heated Steering Wheel...................................................25Heater .............................................................................. 45
Hill Start Assist ............................................................. 162
Hitches Trailer Towing .......................................................... 100
HomeLink (Garage Door Opener) ..................................36
Hood Release ..................................................................54
IIgnition .............................................................................15 Switch .........................................................................15
Illuminated Entry ............................................................. 43
Information Center, Vehicle............................................58 Inside Rearview Mirror.......................................... 35
, 199 Instrument Cluster
Descriptions ........................................................ 56
, 69
Display................................................................. 57, 60
Instrument Cluster
b
.................................................. 57
Instrument Cluster Display Audio .......................................................................... 62
Driver Assist ............................................................... 61
Fuel Economy ............................................................ 61
Speedometer ............................................................. 60
Vehicle Info ................................................................ 60
Instrument Panel Lens Cleaning ................................. 272
Interior Appearance Care ............................................. 271
Interior Lights .................................................................. 42
Intermittent Wipers (Delay Wipers) ............................... 44 iPod/USB/MP3 Control .................................................. 50 Bluetooth Streaming Audio....................................... 50
JJack Location ................................................................ 202
Jack Operation .............................................................. 203
Jacking And Tire Changing

b
....................................202
Jacking Instructions ...................................................... 203
Jump Starting ...................................................... 216
, 217
KKey Fob Arm The System......................................................... 19
Panic Alarm ................................................................ 13
Programming Additional Key Fobs ........................... 15
Unlatch The Trunk ..................................................... 13
Key Fob Battery Service (Remote Keyless Entry) ......... 13
Key Fob Programming (Remote Keyless Entry) ............ 15 Keyless Enter 'n Go™ ..................................................... 22
Enter The Trunk......................................................... 13
Keys ................................................................................. 12 Replacement ............................................................. 15
LLane Change And Turn Signals ..................................... 42
Lane Change Assist ........................................................ 42Lap/Shoulder Belts ...................................................... 174
Latches ......................................................................... 198 Hood........................................................................... 54
Lead Free Gasoline ...................................................... 274
Leaks, Fluid................................................................... 198
Life Of Tires ................................................................... 263
Light Bulbs ...........................................................198
, 250
Lights ............................................................................. 198 Air Bag...................................................... 63
, 179, 196
Automatic Headlights ............................................... 41
Brake Assist Warning.............................................. 162
Brake Warning.................................................. 64
, 273
Bulb Replacement .................................................. 250
Courtesy/Reading ..................................................... 42
Cruise ......................................................................... 69
Daytime Running....................................................... 40
Dimmer Switch, Headlight ........................................ 43
Electronic Stability Program(ESP) Indicator ............ 65
Exterior.............................................................. 39
, 198
Fog ............................................................................. 42
Headlight Switch ....................................................... 39
Headlights.................................................................. 39
Headlights On With Wipers....................................... 41
High Beam ................................................................. 40
High Beam/Low Beam Select .................................. 40
Illuminated Entry ....................................................... 43

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292
Spinning .................................................................. 262
Trailer Towing .......................................................... 102
Tread Wear Indicators ............................................ 263
Wheel Nut Torque ................................................... 273
To Open Hood..................................................................54
Tongue Weight/Trailer Weight .................................... 101
Towing .............................................................................. 98 Disabled Vehicle ..................................................... 221
Guide ....................................................................... 100Recreational ............................................................ 104
Weight...................................................................... 100
Towing Behind A Motorhome ...................................... 104
Traction ......................................................................... 104
Traction Control............................................................ 163
Trailer Towing ..................................................................98 Hitches .................................................................... 100
Minimum Requirements ........................................ 101
Tips .......................................................................... 103
Trailer And Tongue Weight ..................................... 101
Wiring....................................................................... 102
Trailer Towing Guide .................................................... 100
Trailer Weight ............................................................... 100
Transfer Case Fluid ................................................................ 241
, 279
Maintenance ........................................................... 241 Transmission................................................................... 79
Automatic ................................................... 78
, 79, 241
Fluid.......................................................................... 279 Maintenance............................................................241Manual ....................................................................... 76
Shifting ....................................................................... 78
Transporting Pets ......................................................... 196
Tread Wear Indicators ..................................................263
Trunk Lid (Deck Lid)........................................................ 54
Trunk Release Remote Control...................................... 54 Trunk Release, Emergency ............................................ 55
Turn Signals ............................................................. 42
, 69
UUconnect Phone Call Features ................................................ 140
Things You Should Know About YourUconnect Phone ................................................. 142
Uconnect Settings ..................................................... 18
Uconnect Phone ........................................ 136
, 137, 138
Answer Or Ignore An Incoming Call — Call Currently In Progress ..................................141
Answer Or Ignore An Incoming Call — No Call Currently In Progress............................. 141 Bluetooth Communication Link.............................. 144
Call Continuation..................................................... 142
Call Controls ............................................................ 140
Call Termination ...................................................... 142
Cancel Command.................................................... 137
Connecting To A Particular Mobile Phone
Or Audio Device After Pairing ............................ 139
Help Command ....................................................... 137 Join Calls.................................................................. 142
Making A Phone Or Audio Device A Favorite ......... 139
Making A Second Call While Current Call Is In Progress ..................................................... 142
Managing Your Favorites ........................................ 140 Natural Speech ....................................................... 136Operation ................................................................. 136
Overview .................................................................. 135
Pair (Link) Uconnect Phone To A Mobile Phone.... 137
Pair A Bluetooth Streaming Audio Device ............. 138Phonebook Download............................................. 139
Place/Retrieve A Call From Hold............................ 142
Power-Up.................................................................. 144
Recent Calls ............................................................ 141
Redial ....................................................................... 142
To Remove A Favorite ............................................. 140

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