2021 DODGE CHALLENGER towing

250SERVICING AND MAINTENANCE
Change the rear axle fluid and on
models equipped with All Wheel Drive
(AWD) change the front axle fluid if
using your vehicle for any of the
following: police, taxi, fleet, off-road, or
frequent trailer towing. X
X X
Inspect and replace PCV valve if
necessary. X
1. The spark plug change interval is mileage based only, yearly intervals do not apply.
Mileage or time passed
(whichever comes first)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
WARNING!
You can be badly injured working on or around a motor vehicle. Do only service work for which you have the knowledge and the right equipment. If you have
any doubt about your ability to perform a service job, take your vehicle to a competent mechanic.
Failure to properly inspect and maintain your vehicle could result in a component malfunction and effect vehicle handling and performance. This could
cause an accident.

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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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SERVICING AND MAINTENANCE285
Tire Loading And Tire Pressure
NOTE:The proper cold tire inflation pressure is listed on
the driver’s side B-pillar or the rear edge of the
driver's side door.
Check the inflation pressure of each tire, including
the spare tire (if equipped), at least monthly and
inflate to the recommended pressure for your
vehicle.

Example Tire Placard Location (Door) Example Tire Placard Location (B-pillar)

Tire And Loading Information Placard

Tire And Loading Information Placard
This placard tells you important information about
the:

1. Number of people that can be carried in the
vehicle.

2. Total weight your vehicle can carry.
3. Tire size designed for your vehicle.
4. Cold tire inflation pressures for the front, rear, and spare tires.
Loading
The vehicle maximum load on the tire must not
exceed the load carrying capacity of the tire on your
vehicle. You will not exceed the tire's load carrying
capacity if you adhere to the loading conditions,
tire size, and cold tire inflation pressures specified
on the Tire and Loading Information placard
Úpage 110.
NOTE:Under a maximum loaded vehicle condition, Gross
Axle Weight Rating (GAWR) for the front and rear
axles must not be exceeded.
For further information on GAWR, vehicle loading,
and trailer towing Ú page 110.8

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286SERVICING AND MAINTENANCE
To determine the maximum loading conditions of
your vehicle, locate the statement “The combined
weight of occupants and cargo should never
exceed XXX kg or XXX lbs” on the Tire and Loading
Information placard. The combined weight of
occupants, cargo/luggage and trailer tongue
weight (if applicable) should never exceed the
weight referenced here.
Steps For Determining Correct Load
Limit—
(1) Locate the statement “The combined
weight of occupants and cargo should
never exceed XXX kg or XXX lbs.” on your
vehicle's placard.
(2) Determine the combined weight of
the driver and passengers that will be
riding in your vehicle.
(3) Subtract the combined weight of the
driver and passengers from XXX kg or
XXX lbs. (4) The resulting figure equals the
available amount of cargo and luggage
load capacity. For example, if “XXX”
amount equals 1400 lbs. and there will
be five 150 lb passengers in your
vehicle, the amount of available cargo
and luggage load capacity is 650 lbs.
(1400-750 (5x150) = 650 lbs.)
(5) Determine the combined weight of
luggage and cargo being loaded on the
vehicle. That weight may not safely
exceed the available cargo and luggage
load capacity calculated in Step 4.
(6) If your vehicle will be towing a trailer,
load from your trailer will be transferred
to your vehicle. Consult this manual to
determine how this reduces the
available cargo and luggage load
capacity of your vehicle.
Metric Example For Load Limit
For example, if “XXX” amount equals 635 kg and
there will be five 68 kg passengers in your vehicle,
the amount of available cargo and luggage load
capacity is 295 kg (635-340 (5x68) = 295 kg) as
shown in step 4.
NOTE:
If your vehicle will be towing a trailer, load from
your trailer will be transferred to your vehicle.
The following table shows examples on how to
calculate total load, cargo/luggage, and towing
capacities of your vehicle with varying seating
configurations and number and size of occu
-
pants. This table is for illustration purposes only
and may not be accurate for the seating and
load carry capacity of your vehicle.
For the following example, the combined weight
of occupants and cargo should never exceed
865 lbs (392 kg).

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292SERVICING AND MAINTENANCE
Summer tires do not contain the all season
designation or mountain/snowflake symbol on the
tire sidewall. Use Summer tires only in sets of four;
failure to do so may adversely affect the safety and
handling of your vehicle.
Snow Tires
Some areas of the country require the use of snow
tires during the Winter. Snow tires can be identified
by a “mountain/snowflake” symbol on the tire
sidewall. If you need snow tires, select tires
equivalent in size and type to the
original equipment tires. Use snow tires
only in sets of four; failure to do so may
adversely affect the safety and handling of your
vehicle.
Snow tires generally have lower speed ratings than
what was originally equipped with your vehicle and
should not be operated at sustained speeds over
75 mph (120 km/h). For speeds above 75 mph
(120 km/h) refer to original equipment or an authorized tire dealer for recommended safe
operating speeds, loading and cold tire inflation
pressures.
While studded tires improve performance on ice,
skid and traction capability on wet or dry surfaces
may be poorer than that of non-studded tires.
Some states prohibit studded tires; therefore, local
laws should be checked before using these tire
types.
SPARE TIRES — IF EQUIPPED
NOTE:For vehicles equipped with Tire Service Kit instead
of a spare tire, please refer to “Tire Service Kit” in
“In Case Of Emergency” for further information.
For restrictions when towing with a spare tire
designated for temporary emergency use
Ú
page 115.
Spare Tire Matching Original Equipped Tire
And Wheel — If Equipped
Your vehicle may be equipped with a spare tire and
wheel equivalent in look and function to the
original equipment tire and wheel found on the
front or rear axle of your vehicle. This spare tire
may be used in the tire rotation for your vehicle. If
your vehicle has this option, refer to an authorized
tire dealer for the recommended tire rotation
pattern.
Compact Spare Tire — If Equipped
The compact spare is for temporary emergency
use only. You can identify if your vehicle is
equipped with a compact spare by looking at the
spare tire description on the Tire and Loading
Information Placard located on the driver’s side
door opening or on the sidewall of the tire.
Compact spare tire descriptions begin with the
letter “T” or “S” preceding the size designation.
Example: T145/80D18 103M.
T, S = Temporary Spare Tire
Since this tire has limited tread life, the original
equipment tire should be repaired (or replaced)
and reinstalled on your vehicle at the first
opportunity.
WARNING!
Do not use Summer tires in snow/ice conditions.
You could lose vehicle control, resulting in
severe injury or death. Driving too fast for
conditions also creates the possibility of loss of
vehicle control.
CAUTION!
Because of the reduced ground clearance, do
not take your vehicle through an automatic car
wash with a compact or limited use temporary
spare installed. Damage to the vehicle may
result.

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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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315
F
Filler Location Fuel
........................................ 109Filters Air Cleaner................................................. 256Air Conditioning.................................. 52, 258Engine Oil........................................ 256, 306Engine Oil Disposal................................... 256Flashers......................................................... 226Hazard Warning......................................... 226Turn Signals................................ 44, 75, 225Flash-To-Pass.................................................. 43Flooded Engine Starting.................................. 81Fluid Capacities............................................. 305Fluid Leaks.................................................... 225Fluid Level ChecksBrake........................................................ 265Cooling System.......................................... 262Engine Oil.................................................. 253Transfer Case............................................ 267Fluid, Brake................................................... 307Fog Lights........................................................ 44Fold-Flat Seats.......................................... 29, 30Forward Collision Warning............................. 187Freeing A Stuck Vehicle................................. 243
Fuel............................................................... 302Additives................................................... 303Clean Air................................................... 303Ethanol..................................................... 303Filler Cap (Gas Cap).................................. 109Gasoline................................................... 302Materials Added....................................... 303Methanol.................................................. 303Octane Rating.................................. 302, 306Requirements........................................... 302Specifications........................................... 306Tank Capacity........................................... 305Fueling.......................................................... 109Fuses............................................................ 267
G
Garage Door Opener (HomeLink)..................... 38Gas Cap (Fuel Filler Cap).............................. 109Gasoline, Clean Air........................................ 303Gasoline, Reformulated................................ 303Gear Ranges.................................................... 88Glass Cleaning.............................................. 300Gross Axle Weight Rating..................... 111, 112Gross Vehicle Weight Rating................ 110, 111GVWR............................................................ 110
H
HazardDriving Through Flowing, Rising, Or Shallow Standing Water
.................................... 118Hazard Warning Flashers.............................. 226Head Restraints........................................34, 35Head Rests............................................... 34, 35HeadlightsAutomatic....................................................43Cleaning.................................................... 298High Beam/Low Beam Select Switch..........42Lights On Reminder.....................................43On With Wipers............................................43Passing........................................................43Switch..........................................................41Time Delay...................................................43Washers.................................................... 253Heated Mirrors.................................................38Heated Seats...................................................32Heater..............................................................48Heater, Engine Block........................................81
High Beam/Low Beam Select (Dimmer) Switch.. 42
Hill Start Assist.............................................. 182HitchesTrailer Towing........................................... 113HomeLink (Garage Door Opener).....................38Hood Prop........................................................58Hood Release...................................................5811

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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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