2020 DODGE CHALLENGER oil pressure

SERVICING AND MAINTENANCE257
AIR CONDITIONER MAINTENANCE
For best possible performance, your air
conditioner should be checked and serviced by
an authorized dealer at the start of each warm
season. This service should include cleaning of
the condenser fins and a performance test.
Drive belt tension should also be checked at
this time.
Refrigerant Recovery And Recycling
R-134a — If Equipped
R-134a Air Conditioning Refrigerant is a
hydrofluorocarbon (HFC) that is an
ozone-friendly substance. The manufacturer
recommends that air conditioning service be
performed by an authorized dealer or other
service facilities using recovery and recycling
equipment.
NOTE:
Use only manufacturer approved A/C system
PAG compressor oil and refrigerants.
Refrigerant Recovery And Recycling
R-1234yf — If Equipped
R–1234yf Air Conditioning Refrigerant is a
hydrofluoroolefin (HFO) that is endorsed by the
Environmental Protection Agency and is an
ozone-friendly substance with a low
global-warming potential. The manufacturer
recommends that air conditioning service be
performed by an authorized dealer using
recovery and recycling equipment.
NOTE:
Use only manufacturer approved A/C system
PAG compressor oil, and refrigerants.
WARNING!
Use only refrigerants and compressor lubri -
cants approved by the manufacturer for
your air conditioning system. Some unap -
proved refrigerants are flammable and can
explode, injuring you. Other unapproved
refrigerants or lubricants can cause the
system to fail, requiring costly repairs.
Refer to Warranty Information Book, for
further warranty information.
The air conditioning system contains refrig -
erant under high pressure. To avoid risk of
personal injury or damage to the system,
adding refrigerant or any repair requiring
lines to be disconnected should be done by
an experienced technician.
CAUTION!
Do not use chemical flushes in your air
conditioning system as the chemicals can
damage your air conditioning components.
Such damage is not covered by the New
Vehicle Limited Warranty.
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SERVICING AND MAINTENANCE279

Tire Tread

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 is worn 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 replace -
ment.
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. NOTE:
Wheel valve stem must be replaced as well
when installing new tires due to wear and tear
in existing tires.
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 manufacturer
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.
1 — Worn Tire
2 — New Tire
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. You could lose control
and have a collision resulting in serious injury
or death.
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381
Automatic Transmission Limp
Home Mode
............................................ 28, 163AutoPark........................................................ 150Autostick Operation.................................................. 164Aux Mode....................................................... 350Axle Fluid........................... 299, 301, 302, 304Axle Lubrication................. 299, 301, 302, 304
B
Back-Up......................................................... 186Battery.................................................... 84, 251Charging System Light................................. 84Keyless Key Fob Replacement.................... 14Location.................................................... 251Belts, Seat..................................................... 146Blind Spot Monitoring.................................... 100BluetoothConnect Or Disconnect Link Betweenthe Uconnect Phone And Mobile
Phone
................................................... 366Connecting To A Particular Mobile PhoneOr Audio Device After Pairing................361Bluetooth Mode............................................. 351Body Mechanism Lubrication........................ 259B-Pillar Location............................................. 273Brake Assist System........................................ 94Brake Control System...................................... 94Brake Fluid...............266, 299, 301, 302, 304
Brake System...................................... 266, 291Fluid Check.......... 266, 299, 301, 302, 304Master Cylinder........................................ 266Parking..................................................... 154Warning Light.....................................83, 291Brake/Transmission Interlock...................... 160Break-In Recommendations, New Vehicle.... 152Brightness, Interior Lights................................ 44Bulb Replacement........................................ 204Bulbs, Light.......................................... 147, 204
C
Camera, Rear................................................ 186Capacities, Fluid.................................. 297, 298Caps, FillerFuel.......................................................... 188Oil (Engine)...................................... 246, 254Radiator (Coolant Pressure)..................... 264Car Washes................................................... 288Carbon Monoxide Warning................... 145, 296CargoVehicle Loading........................................ 189Cellular Phone.............................................. 368Certification Label......................................... 189Chains, Tire.......................................... 284, 285Changing A Flat Tire...................................... 269Chart, Tire Sizing........................................... 270
Check Engine Light
(Malfunction Indicator Light)............................92Checking Your Vehicle For Safety.................. 145Checks, Safety.............................................. 145Child Restraint.............................................. 130Child RestraintsBooster Seats........................................... 133Child Seat Installation............................... 142How To Stow An unused ALR Seat Belt..... 139Infant And Child Restraints....................... 132Lower Anchors And Tethers For Children................................................ 135Older Children And Child Restraints.......... 132Seating Positions...................................... 134Clean Air Gasoline......................................... 294CleaningWheels...................................................... 283Climate Control................................................47Cold Weather Operation................................ 151Compact Spare Tire...................................... 281Contract, Service........................................... 377Cooling Pressure Cap (Radiator Cap)............ 264Cooling System............................................. 262Adding Coolant (Antifreeze)...................... 263Coolant Level................................... 262, 265Cooling Capacity.............................. 297, 298Disposal Of Used Coolant......................... 26511

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382 Drain, Flush, And Refill
.............................. 263Inspection................................................. 265Points To Remember................................. 265Pressure Cap............................................. 264Radiator Cap............................................. 264Selection Of Coolant (Antifreeze)......263, 297, 298, 299, 302Corrosion Protection...................................... 287Cruise Control (Speed Control)............ 166, 169Cruise Light.............................................. 89, 90Customer Assistance..................................... 376Customer Programmable Features................306Cybersecurity................................................. 305
D
Daytime Running Lights................................... 41Dealer Service............................................... 252Deck LidPower Release............................................ 58Defroster, Windshield.................................... 146Delay (Intermittent) Wipers.............................. 45Diagnostic System, Onboard........................... 91Dimmer SwitchHeadlight..................................................... 41DipsticksOil (Engine)................................................ 250Disabled Vehicle Towing................................ 232
DisposalAntifreeze (Engine Coolant)...................... 265Disturb.......................................................... 365Do Not Disturb.............................................. 373Door Ajar.......................................................... 86Door Ajar Light................................................. 86Door LocksAutomatic.................................................... 28Door Opener, Garage....................................... 59Doors............................................................... 24Driver’s Seat Back Tilt...................................... 29DrivingThrough Flowing, Rising, Or Shallow Standing Water
.................................... 197
E
Electric Brake Control System.......................... 94Anti-Lock Brake System............................... 93Electronic Roll Mitigation....................95, 100Electric Remote Mirrors................................... 39Electrical Power Outlets................................... 65Electronic Power Distribution Center
(Fuses).......................................................... 208Electronic Speed Control (Cruise Control)..... 167Electronic Stability Control (ESC)..................... 95Electronic Throttle Control Warning Light......... 85
Emergency, In Case OfFreeing Vehicle When Stuck..................... 231Jacking............................................. 216, 269Jump Starting.................................. 226, 227Towing...................................................... 232Emission Control System Maintenance............92Engine............................... 246, 247, 248, 249Air Cleaner................................................ 255Block Heater............................................. 152Break-In Recommendations............ 152, 153Checking Oil Level.................................... 250Compartment......................... 246, 247, 249Compartment Identification............. 246, 248Coolant (Antifreeze)................ 262, 299, 302Cooling...................................................... 262Exhaust Gas Caution....................... 145, 296Fails To Start............................................. 152Flooded, Starting...................................... 152Fuel Requirements................................... 293Jump Starting.................................. 226, 227Oil........................ 252, 297, 298, 299, 302Oil Filler Cap.................................... 246, 254Oil Filter.................................................... 255Oil Selection............................ 252, 297, 298Oil Synthetic.............................................. 254Overheating.............................................. 229Starting............................................ 148, 149

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385
Loading Vehicle
................................... 189, 190Capacities................................................. 190Tires.......................................................... 273Locks Auto Unlock................................................. 28Automatic Door........................................... 28Power Door.................................................. 25Low Tire Pressure System............................. 107Lubrication, Body........................................... 259Lug Nuts/Bolts.............................................. 291
M
Maintenance................................................... 57Maintenance Free Battery............................. 251Maintenance Schedule............... 234, 239, 240Malfunction Indicator Light
(Check Engine)......................................... 86, 92ManualBackward............................................. 29, 30Forward................................................ 29, 30Park Release............................................. 229Rearward..................................................... 29Service...................................................... 379Tilt............................................................... 30Manual Transmission................. 155, 267, 268Fluid Level Check............................ 267, 268Map/Reading Lights........................................ 43Methanol....................................................... 295
Mirrors............................................................. 38Electric Powered.......................................... 39Electric Remote........................................... 39Heated......................................................... 39Outside........................................................ 39Rearview.............................................38, 199Vanity.......................................................... 40Modifications/AlterationsVehicle......................................................... 10Monitor, Tire Pressure System...................... 107Mopar Parts.................................................. 378Multi-Function Control Lever............................ 41
N
New Vehicle Break-In Period......................... 152
O
Occupant Restraints..................................... 111Octane Rating, Gasoline (Fuel)... 293, 299, 302Oil Change Indicator........................................ 75Reset........................................................... 75Oil Filter, Change.......................................... 255Oil Filter, Selection........................................ 255Oil Pressure Light............................................. 84Oil, Engine................................... 252, 299, 302Capacity........................................... 297, 298Change Interval........................................ 252Checking................................................... 250Dipstick.................................................... 250Disposal................................................... 255
Filter....................................... 255, 299, 302Filter Disposal........................................... 255Identification Logo.................................... 253Materials Added To................................... 255Pressure Warning Light................................84Recommendation................... 252, 297, 298Synthetic................................................... 254Viscosity........................ 253, 254, 297, 298Onboard Diagnostic System.............................91Operating Precautions.....................................91Operator ManualOwner's Manual....................................9, 379Outside Rearview Mirrors.................................39Overheating, Engine...................................... 229Owner’s Manual (Operator Manual)................... 9
P
Paddle Shift Mode........................................ 164Paddle Shifters............................................. 164Paint Care..................................................... 287Panic Alarm......................................................14Parking Brake............................................... 154ParkSense System, Rear............................... 181Passenger SeatEasy Entry....................................................34Passing Light....................................................42Performance....................................................77Pets............................................................... 145Pinch Protection...............................................56Placard, Tire And Loading Information.......... 273
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387
Seats
.......................................... 29, 31, 32, 34Adjustment........................................... 29, 31Head Restraints................................... 34, 35Heated........................................................ 32Height Adjustment....................................... 31Power.......................................................... 31Rear Folding......................................... 29, 30Seatback Release................................ 29, 30Tilting............................................ 29, 31, 34Vented......................................................... 33Ventilated.................................................... 33Security Alarm.......................................... 23, 84Arm The System.......................................... 23Selection Of Coolant (Antifreeze)......... 299, 302Sentry Key Key Programming........................................ 22Sentry Key (Immobilizer).................................. 21Sentry Key Replacement.......................... 16, 22Service Assistance......................................... 376Service Contract............................................ 377Service Manuals............................................ 379Shift Indicator Light....................................... 158Shifting.......................................................... 158Automatic Transmission.................. 158, 160Shoulder Belts............................................... 115Side View Mirror Adjustment........................... 39Signals, Turn.................................... 43, 89, 147Siri................................................................. 373
Sirius Satellite Radio..................................... 343Favorites................................................... 345Replay...................................................... 345SiriusXM Satellite RadioBrowse in SXM......................................... 345Favorites................................................... 345Replay...................................................... 345Snow Chains (Tire Chains)................... 284, 285Snow Tires.................................................... 281Spare Tires................................. 216, 281, 282Spark Plugs.......................................... 299, 302SpecificationsFuel (Gasoline)................................ 299, 302Oil.................................................... 299, 302Speed ControlAccel/Decel..................................... 167, 168Cancel...................................................... 168Resume.................................................... 168Set............................................................ 167Speed Control (Cruise Control)... 166, 167, 169Sport Mode................................................... 165Starting................................................ 148, 149Automatic Transmission........................... 148Button......................................................... 17Cold Weather............................................ 151Engine Fails To Start................................. 152Starting And Operating......................... 148, 149Starting Procedures............................. 148, 149Steering........................................................... 37Column Lock................................................ 37
Power........................................................ 166Tilt Column...................................................37Wheel, Heated.............................................38Wheel, Tilt....................................................37Steering Wheel Audio Controls...................... 367Steering Wheel Mounted Sound
System Controls............................................ 367Storage.................................................. 64, 287Storage, Vehicle..................................... 53, 287Store Radio Presets...................................... 343Storing Your Vehicle...................................... 287Stuck, Freeing............................................... 231Sun Roof...................................................55, 57Supplemental Restraint System – Air Bag.... 122Synthetic Engine Oil...................................... 254
T
Telescoping Steering Column...........................37Temperature Control, Automatic (ATC).............52Tilt Steering Column.........................................37Time DelayHeadlight.....................................................42Tire And Loading Information Placard........... 273Tire Markings................................................ 269Tire Safety Information.................................. 269Tire Service Kit......... 220, 221, 223, 225, 226Tires.................................. 147, 276, 281, 286Aging (Life Of Tires)................................... 279Air Pressure.............................................. 276Chains............................................. 284, 285
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