tires DODGE CHALLENGER SRT 2018 Owner's Guide

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.
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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)
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SERVICING AND MAINTENANCE 359

WARNING!(Continued)
•Never use a tire with a smaller load index or capacity,
other than what was originally equipped on your
vehicle. Using a tire with a smaller load index could
result in tire overloading and failure. You could lose
control and have a collision.
• Failure to equip your vehicle with tires having ad-
equate speed capability can result in sudden tire
failure and loss of vehicle control.
CAUTION!
Replacing original tires with tires of a different size
may result in false speedometer and odometer read-
ings.
Tire Types
All Season Tires — If Equipped
All Season tires provide traction for all seasons (Spring,
Summer, Fall, and Winter). Traction levels may vary be-
tween different all season tires. All season tires can be
identified by the M+S, M&S, M/S or MS designation on the tire sidewall. Use all season tires only in sets of four; failure
to do so may adversely affect the safety and handling of
your vehicle.
Summer Or Three Season Tires — If Equipped
Summer tires provide traction in both wet and dry condi-
tions, and are not intended to be driven in snow or on ice.
If your vehicle is equipped with Summer tires, be aware
these tires are not designed for Winter or cold driving
conditions. Install Winter tires on your vehicle when am-
bient temperatures are less than 40°F (5°C) or if roads are
covered with ice or snow. For more information, contact an
authorized dealer.
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.
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.
360 SERVICING AND MAINTENANCE

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.
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SERVICING AND MAINTENANCE 361

Dark Vapor Chrome, Black Satin Chrome, or Low Gloss
Clear Coat Wheels
CAUTION!
If your vehicle is equipped with these specialty
wheels, DO NOT USE wheel cleaners, abrasives, or
polishing compounds. They will permanently damage
this finish and such damage is not covered by the New
Vehicle Limited Warranty. HAND WASH ONLY US-
ING MILD SOAP AND WATER WITH A SOFT
CLOTH. Used on a regular basis; this is all that is
required to maintain this finish.
Tire Chains (Traction Devices)
Due to limited clearance, tire chains or traction devices are
not recommended.
CAUTION!
Damage to the vehicle may result if tire chains are
used.
Tire Rotation Recommendations
Tires on the front and rear axles of vehicles operate at
different loads and perform different steering, driving, and
braking functions. For these reasons, they wear at unequal
rates.
These effects can be reduced by timely rotation of tires. The
benefits of rotation are especially worthwhile with aggres-
sive tread designs such as those on all season type tires.
Rotation will increase tread life, help to maintain mud,
snow and wet traction levels, and contribute to a smooth,
quiet ride.
Refer to “Scheduled Servicing” in “Servicing And Mainte-
nance” for the proper maintenance intervals. The reasons
for any rapid or unusual wear should be corrected prior to
rotation being performed.
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SERVICING AND MAINTENANCE 365

Tire Rotation — Same Tire Size On Front And Rear Axle
The suggested rotation method for vehicles equipped with
non directional three season and all season tires is the
“forward-cross” as shown in the following diagram.Tire Rotation—Different Tire Size On Front And
Rear Axle
The suggested rotation method is the “side-to-side” as
shown in the following diagram. This method is required
due to different size tires on the front and rear of the
vehicle.
Tire Rotation
Tire Rotation
366 SERVICING AND MAINTENANCE

DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES
The following tire grading categories were established
by the National Highway Traffic Safety Administration.
The specific grade rating assigned by the tire’s manu-
facturer in each category is shown on the sidewall of the
tires on your vehicle.
All passenger vehicle tires must conform to Federal
safety requirements in addition to these grades.
Treadwear
The Treadwear grade is a comparative rating, based on
the wear rate of the tire when tested under controlled
conditions on a specified government test course. For
example, a tire graded 150 would wear one and one-half
times as well on the government course as a tire graded
100. The relative performance of tires depends upon the
actual conditions of their use, however, and may depart
significantly from the norm due to variations in driving
habits, service practices, and differences in road charac-
teristics and climate.
Traction Grades
The Traction grades, from highest to lowest, are AA, A,
B, and C. These grades represent the tire’s ability to stopon wet pavement, as measured under controlled condi-
tions on specified government test surfaces of asphalt
and concrete. A tire marked C may have poor traction
performance.
WARNING!
The traction grade assigned to this tire is based on
straight-ahead braking traction tests, and does not
include acceleration, cornering, hydroplaning, or
peak traction characteristics.
Temperature Grades
The Temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation of
heat and its ability to dissipate heat, when tested under
controlled conditions on a specified indoor laboratory
test wheel.
Sustained high temperature can cause the material of
the tire to degenerate and reduce tire life, and excessive
temperature can lead to sudden tire failure. The grade C
corresponds to a level of performance, which all pas-
senger vehicle tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades B and A 8
SERVICING AND MAINTENANCE 367

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

Ignition..................................24
Switch .................................24
Information Center, Vehicle ...................101
Inside Rearview Mirror ....................54, 274
Instrument Cluster Descriptions ......................... .98, 121
Display .............................. .104
Instrument Panel Lens Cleaning ................371
Interior Appearance Care .....................370
Interior Lights ..............................62
Intermittent Wipers (Delay Wipers) ...............65
Introduction ................................4
iPod/USB/MP3 Control ..................... .442
Bluetooth Streaming Audio .................442
Jack Operation ........................... .344
Jump Starting ......................... .303, 304
Key Fob Arm The System ..........................32
Panic Alarm .............................20
Programming Additional Key Fobs ..........23, 31
Unlatch The Trunk ........................20
Key Fob Battery Service (Remote Keyless Entry) .....21
Key Fob Programming (Remote Keyless Entry) ......23Key-In Reminder
............................26
Keyless Enter-N-Go ..........................35
Enter The Trunk ..........................20
Keys ....................................17
Replacement ......................... .23, 31
Lane Change And Turn Signals .................61
Lane Change Assist ..........................61
Lap/Shoulder Belts ........................ .158
Latches ................................. .203
Hood ..................................80
Lead Free Gasoline ........................ .376
Leaks, Fluid ............................. .203
Life Of Tires ............................. .358
Light Bulbs .......................... .203, 280
Lights .................................. .203
AirBag .........................112, 167, 201
Automatic Headlights ......................59
Brake Assist Warning ..................... .134
Brake Warning .......................112,374
Bulb

Replacement ....................... .280
Courtesy/Reading .........................62
Cruise ............................... .121
Daytime Running .........................58
Dimmer Switch, Headlight ...................58
474 INDEX