tire pressure DODGE CHALLENGER SRT 2018 Owner's Guide

pressure should be increased by 3 psi (21 kPa), which
equals 1 psi (7 kPa) for every 12°F (7°C) for this outside
temperature condition.
Tire pressure may increase from 2 to 6 psi (13 to 40 kPa)
during operation. DO NOT reduce this normal pressure
build up or your tire pressure will be too low.
Tire Pressures For High Speed Operation
The manufacturer advocates driving at safe speeds and
within posted speed limits. Where speed limits or condi-
tions are such that the vehicle can be driven at high speeds,
maintaining correct tire inflation pressure is very impor-
tant. Increased tire pressure and reduced vehicle loading
may be required for high-speed vehicle operation. Refer to
an authorized tire dealer or original equipment vehicle
dealer for recommended safe operating speeds, loading
and cold tire inflation pressures.
WARNING!
High speed driving with your vehicle under maximum
load is dangerous. The added strain on your tires could
cause them to fail. You could have a serious collision.
Do not drive a vehicle loaded to the maximum capacity
at continuous speeds above 75 mph (120 km/h).
Radial Ply Tires
WARNING!
Combining radial ply tires with other types of tires on
your vehicle will cause your vehicle to handle poorly.
The instability could cause a collision. Always use
radial ply tires in sets of four. Never combine them
with other types of tires.
Tire Repair
If your tire becomes damaged, it may be repaired if it meets
the following criteria:
• The tire has not been driven on when flat.
• The damage is only on the tread section of your tire
(sidewall damage is not repairable).
• The puncture is no greater thana¼ofaninch (6 mm).
Consult an authorized tire dealer for tire repairs and
additional information.
Damaged Run Flat tires, or Run Flat tires that have
experienced a loss of pressure should be replaced immedi-
ately with another Run Flat tire of identical size and service
description (Load Index and Speed Symbol).
356 SERVICING AND MAINTENANCE

Run Flat Tires — If Equipped
Run Flat tires allow you the capability to drive 50 miles
(80 km) at 50 mph (80 km/h) after a rapid loss of inflation
pressure. This rapid loss of inflation is referred to as the
Run Flat mode. A Run Flat mode occurs when the tire
inflation pressure is of/or below 14 psi (96 kPa). Once a
Run Flat tire reaches the run flat mode it has limited
driving capabilities and needs to be replaced immediately.
A Run Flat tire is not repairable.
It is not recommended driving a vehicle loaded at full
capacity or to tow a trailer while a tire is in the run flat
mode.
See the tire pressure monitoring section for more informa-
tion.
Tire Spinning
When stuck in mud, sand, snow, or ice conditions, do not
spin your vehicle’s wheels above 30 mph (48 km/h) or for
longer than 30 seconds continuously without stopping.Refer to “Freeing A Stuck Vehicle” in “In Case Of Emer-
gency” for further information.
WARNING!
Fast spinning tires can be dangerous. Forces generated
by excessive wheel speeds may cause tire damage or
failure. A tire could explode and injure someone. Do
not spin your vehicle’s wheels faster than 30 mph
(48 km/h) for more than 30 seconds continuously when
you are stuck, and do not let anyone near a spinning
wheel, no matter what the speed.
8
SERVICING AND MAINTENANCE 357

Tread Wear Indicators
Tread wear indicators are in the original equipment tires to
help you in determining when your tires should be re-
placed.
These indicators are molded into the bottom of the tread
grooves. They will appear as bands when the tread depth
becomes a 1/16 of an inch (1.6 mm). When the tread isworn to the tread wear indicators, the tire should be
replaced. Refer to “Replacement Tires” in this section for
further information.
Life Of Tire
The service life of a tire is dependent upon varying factors
including, but not limited to:
•
Driving style.
• Tire pressure - Improper cold tire inflation pressures can
cause uneven wear patterns to develop across the tire
tread. These abnormal wear patterns will reduce tread
life, resulting in the need for earlier tire replacement.
• Distance driven.
• Performance tires, tires with a speed rating of V or
higher, and Summer tires typically have a reduced tread
life. Rotation of these tires per the vehicle scheduled
maintenance is highly recommended.
WARNING!
Tires and the spare tire should be replaced after six
years, regardless of the remaining tread. Failure to
follow this warning can result in sudden tire failure.
(Continued)
Tire Tread
1—WornTire
2—NewTire 358 SERVICING AND MAINTENANCE

WARNING!(Continued)
You could lose control and have a collision resulting in
serious injury or death.
Keep dismounted tires in a cool, dry place with as little
exposure to light as possible. Protect tires from contact with
oil, grease, and gasoline.
Replacement Tires
The tires on your new vehicle provide a balance of many
characteristics. They should be inspected regularly for
wear and correct cold tire inflation pressures. The manu-
facturer strongly recommends that you use tires equivalent
to the originals in size, quality and performance when
replacement is needed. Refer to the paragraph on “Tread
Wear Indicators” in this section. Refer to the Tire and
Loading Information placard or the Vehicle Certification
Label for the size designation of your tire. The Load Index
and Speed Symbol for your tire will be found on the
original equipment tire sidewall.
See the Tire Sizing Chart example found in the “Tire Safety
Information” section of this manual for more information
relating to the Load Index and Speed Symbol of a tire. It is recommended to replace the two front tires or two rear
tires as a pair. Replacing just one tire can seriously affect
your vehicle’s handling. If you ever replace a wheel, make
sure that the wheel’s specifications match those of the
original wheels.
It is recommended you contact an authorized tire dealer or
original equipment dealer with any questions you may
have on tire specifications or capability. Failure to use
equivalent replacement tires may adversely affect the
safety, handling, and ride of your vehicle.
WARNING!
•
Do not use a tire, wheel size, load rating, or speed
rating other than that specified for your vehicle.
Some combinations of unapproved tires and wheels
may change suspension dimensions and perfor-
mance characteristics, resulting in changes to steer-
ing, handling, and braking of your vehicle. This can
cause unpredictable handling and stress to steering
and suspension components. You could lose control
and have a collision resulting in serious injury or
death. Use only the tire and wheel sizes with load
ratings approved for your vehicle.
(Continued)
8
SERVICING AND MAINTENANCE 359

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 origi-
nal 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 stud-
ded 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.
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.
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.
8
SERVICING AND MAINTENANCE 361

Do not install a wheel cover or attempt to mount a
conventional tire on the collapsible spare wheel, since the
wheel is designed specifically for the collapsible spare tire.
WARNING!
Compact and Collapsible spares are for temporary
emergency use only. With these spares, do not drive
more than 50 mph (80 km/h). Temporary use spares
have limited tread life. When the tread is worn to the
tread wear indicators, the temporary use spare tire
needs to be replaced. Be sure to follow the warnings,
which apply to your spare. Failure to do so could result
in spare tire failure and loss of vehicle control.
Full Size Spare — If Equipped
The full size spare is for temporary emergency use only.
This tire may look like the originally equipped tire on the
front or rear axle of your vehicle, but it is not. This spare
tire may have limited tread life. When the tread is worn to
the tread wear indicators, the temporary use full size spare
tire needs to be replaced. Since it is not the same as your
original equipment tire, replace (or repair) the original
equipment tire and reinstall on the vehicle at the first
opportunity.
Limited Use Spare — If Equipped
The limited use spare tire is for temporary emergency use
only. This tire is identified by a label located on the limited
use spare wheel. This label contains the driving limitations
for this spare. This tire may look like the original equipped
tire on the front or rear axle of your vehicle, but it is not.
Installation of this limited use spare tire affects vehicle
handling. Since it is not the same as your original equip-
ment tire, replace (or repair) the original equipment tire
and reinstall on the vehicle at the first opportunity.
WARNING!
Limited use spares are for emergency use only. Instal-
lation of this limited use spare tire affects vehicle
handling. With this tire, do not drive more than the
speed listed on the limited use spare wheel. Keep
inflated to the cold tire inflation pressures listed on
your Tire and Loading Information Placard located on
the driver ’s side B-Pillar or the rear edge of the driver ’s
side door. Replace (or repair) the original equipment
tire at the first opportunity and reinstall it on your
vehicle. Failure to do so could result in loss of vehicle
control.8
SERVICING AND MAINTENANCE 363

About Your Brakes..................... .213, 374
Adaptive Cruise Control (ACC) (Cruise Control) . . . .240
Adding Engine Coolant (Antifreeze) .............337
Adding Washing Fluid ...................... .322
Additives, Fuel ........................... .377
Adjust Forward ............................ .41, 42
Rearward ........................... .41, 42
AirBag ................................ .169
Advance Front Air Bag ....................169
Air Bag Operation ....................... .170
Air Bag Warning Light .....................167
Enhanced Accident Response .............177, 312
Event Data Recorder (EDR) .................312
FrontAirBag .......................... .169
If Deployment Occurs .....................176
Knee Impact Bolsters ..................... .171
Maintaining Your Air Bag System .............179
Maintenance ........................... .179
Redundant Air Bag Warning Light ............168
Side Air Bags .......................... .171
Transporting Pets ....................... .199
Air Bag Light .......................112, 167, 201
Air Cleaner, Engine (Engine Air Cleaner Filter) ......326
Air Conditioner Maintenance ..................327 Air Conditioner Refrigerant
................327, 328
Air Conditioner System ..................... .327
Air Conditioning ............................67
Air Conditioning Filter ....................74, 328
Air Conditioning, Operating Tips ................73
Air Conditioning System ......................67
Air Filter ............................... .326
Air Pressure Tires................................. .355
Alarm Arm The System ...................... .32, 33
Panic ..................................20
Rearm The System ........................33
Security Alarm ....................... .32, 113
Alarm

System
Security Alarm ...........................32
Alterations/Modifications, Vehicle ................6
Android Auto ............................ .456
Antifreeze (Engine Coolant) ................337, 381
Disposal .............................. .339
Anti-Lock Brake System (ABS) .................128
Anti-Lock Warning Light .....................119
Apple CarPlay ........................... .457
Arming System Security Alarm ...........................32
468 INDEX

CargoVehicle Loading ......................... .268
Car Washes .............................. .369
Cellular Phone ........................... .442
Certification Label ......................... .268
Chains, Tire ............................. .365
Changing A Flat Tire ....................... .344
Chart, Tire Sizing .......................... .346
Check Engine Light (Malfunction Indicator Light). . . .124
Checking Your Vehicle For Safety ...............199
Checks, Safety ............................ .199
Child Restraint ........................... .180
Child Restraints Booster Seats ........................... .184
Child Seat Installation .....................196
How To Stow An unused ALR Seat Belt ........192
Infant And Child Restraints .................182
Lower Anchors And Tethers For Children .......186
Older Children And Child Restraints ...........183
Seating Positions ........................ .185
Clean Air Gasoline ........................ .377
Cleaning Wheels ............................... .364
Climate Control ............................67
Cold Weather Operation ......................211 Compact Disc (CD) Maintenance
................459
Compact Spare Tire ........................ .362
Contract, Service .......................... .464
Cooling Pressure Cap (Radiator Cap) ............338
Cooling System ........................... .336
Adding Coolant (Antifreeze) .................337
Coolant Level ....................... .336, 339
Cooling Capacity ........................ .381
Disposal Of Used Coolant ..................339
Drain, Flush, And Refill ....................336
Inspection ............................. .339
Points To Remember ..................... .339
Pr

essure Cap ........................... .338
Radiator Cap .......................... .338
Selection Of Coolant (Antifreeze) .......337, 381, 382
Corrosion Protection ....................... .368
Cruise Control (Speed Control) ..............237, 240
Cruise Light ............................. .121
Customer Assistance ....................... .462
Customer Programmable Features ...............389
Cybersecurity ............................ .388
Daytime Running Lights ......................58
Dealer Service ............................ .324
470 INDEX

Engine Temperature Warning................114
Exterior .............................. .203
Fog ...................................61
Headlights .......................... .57, 60
Headlights On With Wipers ..................60
Headlight Switch .........................57
High Beam ..............................58
High Beam/Low Beam Select .................58
Instrument Cluster ........................57
Intensity Control ..........................63
Interior ................................62
License ............................... .283
Lights On Reminder .......................60
Malfunction Indicator (Check Engine) ..........116
Map ..................................62
Park .............................. .59, 120
Passing ................................59
Reading ................................62
Seat Belt Reminder .......................112
Security Alarm ..........................113
Service ............................... .280
Tire Pressure Monitoring (TPMS) ..........118,148
Traction Control ........................ .134
Turn Signals ....................58, 61, 121, 203
Vanity Mirror ............................56 Warning Instrument Cluster Descriptions
....114,121
Loading Vehicle ....................... .268, 269
Capacities ............................. .269
Tires................................. .350
Load Shed Battery Saver On ...................110
Load Shed Electrical Load Reduction .............110
Load Shed Intelligent Battery Sensor .............110
Locks Automatic Door ..........................40
Auto Unlock .............................39
Power Door .............................35
Low Tire Pressure System .....................148
Lubrication, Body ......................... .331
Lug Nuts ............................... .375
Maintenance Free Battery .....................322
Maintenance Schedule ....................315, 317
Malfunction Indicator Light (Check Engine) .....116,124
Manual Backward ...............................41
Forward ................................41
Park Release ........................... .307
Rearward ...............................
41
Tilt ...................................41
Manual, Service ........................... .466
12
INDEX 475

Manual Transmission.................215, 342, 344
Fluid Level Check .....................342, 344
Map/Reading Lights .........................62
Memory Feature (Memory Seats) ................40
Memory Seat ..............................40
Memory Seats And Radio .....................40
Methanol ............................... .378
Mirrors ..................................54
Electric Powered ..........................56
Electric Remote ...........................56
Heated .................................56
Outside ................................55
Rearview ........................... .54, 274
Vanity .................................56
Modifications/Alterations, Vehicle ................6
Monitor, Tire Pressure System ..................148
Mopar Parts ............................. .465
Multi-Function Control Lever ...................58
Occupant Restraints ........................ .154
Octane Rating, Gasoline (Fuel) ..............376, 382
Oil Change Indicator ....................... .103
Reset ................................ .103
Oil, Engine ........................... .324, 382
Capacity .............................. .381Change Interval
........................ .324
Checking ............................. .322
Dipstick .............................. .322
Disposal .............................. .326
Filter ............................. .326, 382
Filter Disposal .......................... .326
Materials Added To ...................... .325
Pressure Warning Light ....................114
Recommendation ........................ .381
Synthetic ............................. .325
Viscosity .......................... .325, 381
Oil Filter, Change ......................... .326
Oil Filter, Selection ......................... .326
Oil Pressure Light ..........................114
Onboard Diagnostic System ...................122
Operating

Precautions ...................... .122
Operator Manual (Owner’s Manual) ...............5
Outside Rearview Mirrors .....................55
Overheating, Engine ....................... .306
Owner’s Manual (Operator Manual) ...........5,466
Paddle Shifters ........................... .227
Paddle Shift Mode ......................... .227
Paint Care ............................... .368
Panic Alarm ...............................20
476 INDEX