tires RAM PROMASTER 2021 Owner's Guide

258SERVICING AND MAINTENANCE
(Continued)
TIRE ROTATION RECOMMENDATIONS
The tires on the front and rear of your vehicle
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 aggressive 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 the Maintenance Plan for the proper
maintenance intervals Ú
page 212. The
reasons for any rapid or unusual wear should be
corrected prior to rotation being performed.
The suggested rotation method is the “forward
cross” shown in the following diagram. This
rotation pattern does not apply to some
directional tires that must not be reversed.

Tire Rotation (Forward Cross)

CAUTION!
To avoid damage to your vehicle or tires,
observe the following precautions:
Because of restricted traction device clear -
ance between tires and other suspension
components, it is important that only trac-
tion devices in good condition are used.
Broken devices can cause serious damage.
Stop the vehicle immediately if noise
occurs that could indicate device breakage.
Remove the damaged parts of the device
before further use.
Install device as tightly as possible and
then retighten after driving about ½ mile
(0.8 km). Autosock traction devices do not
require retightening.
Do not exceed 30 mph (48 km/h).
Drive cautiously and avoid severe turns and
large bumps, especially with a loaded
vehicle.
Do not drive for a prolonged period on dry
pavement.
Observe the traction device manufacturer’s
instructions on the method of installation,
operating speed, and conditions for use.
Always use the suggested operating speed
of the device manufacturer’s if it is less
than 30 mph (48 km/h).
Do not use traction devices on a compact
spare tire.
CAUTION! (Continued)

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SERVICING AND MAINTENANCE259
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 manufacturer 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
characteristics 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 stop on wet
pavement, as measured under
controlled conditions on specified
government test surfaces of asphalt and
concrete. A tire marked C may have poor
traction performance.
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
passenger vehicle tires must meet
under the Federal Motor Vehicle Safety
Standard No. 109. Grades B and A
represent higher levels of performance
on the laboratory test wheel, than the
minimum required by law.
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.
WARNING!
The temperature grade for this tire is
established for a tire that is properly inflated
and not overloaded. Excessive speed,
underinflation, or excessive loading, either
separately or in combination, can cause heat
buildup and possible tire failure.
8

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275
INDEX
A
Adding Engine Coolant (Antifreeze)............... 224Adding Washing Fluid.................................... 217Additives, Fuel............................................... 266Advance Phone Connectivity......................... 121Air Bag........................................................... 174Air Bag Operation...................................... 175Air Bag Warning Light................................ 173Enhanced Accident Response...................210Event Data Recorder (EDR)....................... 210If Deployment Occurs................................ 178Maintaining Your Air Bag System.............. 179Maintenance............................................. 179Side Air Bags............................................. 175Transporting Pets...................................... 187Air Bag Light..................................48, 173, 187Air Cleaner, Engine
(Engine Air Cleaner Filter).............................. 219Air Conditioner Maintenance......................... 219Air Conditioner Refrigerant.................. 219, 220Air Conditioner System.................................. 219Air Conditioning Filter............................. 35, 220Air Conditioning, Operating Tips................ 34, 35Air Filter......................................................... 219Air PressureTires.......................................................... 249
AlarmSecurity Alarm...................................... 13, 50Alarm SystemSecurity Alarm............................................. 13Alterations/ModificationsVehicle........................................................... 7Antifreeze (Engine Coolant)................. 223, 268Disposal................................................... 225Anti-Lock Brake System (ABS)...................... 149Anti-Lock Warning Light................................... 53Assist, Hill Start............................................. 153Audio Settings............................................... 107Audio Systems (Radio)..................................... 88Auto Down Power Windows............................. 39Auto Up Power Windows.................................. 39Automatic Door Locks...................................... 15Automatic Transmission.........................60, 227Adding Fluid.............................................. 227Fluid And Filter Change............................ 227Fluid Change............................................ 227Fluid Level Check............................ 226, 227Fluid Type........................................ 226, 270Special Additives...................................... 227AUX Cord.......................................................... 37Auxiliary Driving Systems.............................. 155
B
Battery................................................... 48, 217Charging System Light.................................48Keyless Key Fob Replacement....................11Belts, Seat.................................................... 187Blind Spot Monitoring................................... 155BluetoothConnecting To A Particular Mobile PhoneOr Audio Device After Pairing
................ 116Body Builders Guide........................................... 7Body Mechanism Lubrication........................ 221B-Pillar Location............................................ 245Brake Assist System..................................... 150Brake Control System, Electronic.................. 150Brake Fluid........................................... 226, 270Brake System....................................... 226, 264Anti-Lock (ABS)......................................... 149Fluid Check............................................... 226Master Cylinder........................................ 226Parking........................................................59Warning Light...............................................49Brake, Parking.................................................59Brake/Transmission Interlock..........................60Bulb Replacement........................................ 235Bulbs, Light.......................................... 188, 23511

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278 H
Hazard Driving Through Flowing, Rising, OrShallow Standing Water
.......................... 86Hazard Warning Flashers.............................. 190Head Restraints............................................... 20HeadlightsCleaning.................................................... 260High Beam.................................................. 26High Beam/Low Beam Select Switch.......... 26Passing........................................................ 26Switch......................................................... 26Heated Mirrors................................................ 25Heated Seats................................................... 19Heater, Engine Block....................................... 58High Beam/Low Beam Select (Dimmer)
Switch.............................................................. 26Hill Start Assist.............................................. 153HitchesTrailer Towing.............................................. 80Hood Prop........................................................ 40Hood Release.................................................. 40
I
Ignition............................................................ 12Key....................................................... 10, 12Switch......................................................... 12Ignition Key Removal....................................... 12Illuminated Entry............................................. 30
Immobilizer (Sentry Key).................................. 12Inside Rearview Mirror..................................... 23Instrument Cluster.................................... 42, 54Display......................................................... 44Instrument Panel Lens Cleaning................... 262Interior And Instrument Lights......................... 28Interior Appearance Care.............................. 261Interior Lights................................................... 28Intermittent Wipers (Delay Wipers).................. 30iPod/USB/MP3 Control.................................... 37
J
Jack Location................................................ 190Jack Operation.............................................. 190Jacking And Tire Changing............................ 190Jacking And Tire Changing Instructions........ 191Jump Starting............................................... 203
K
Key FobProgramming Additional Key Fobs
............... 11Key Fob Battery Service
(Remote Keyless Entry).................................... 11Key Fob Programming
(Remote Keyless Entry).................................... 11Key-In Reminder.............................................. 12Keys................................................................. 10Replacement............................................... 11Sentry (Immobilizer).................................... 12
L
Lane Change Assist..........................................27Lap/Shoulder Belts....................................... 166Latches......................................................... 188Hood............................................................40Lead Free Gasoline....................................... 265Leaks, Fluid................................................... 189Life Of Tires................................................... 251Light Bulbs........................................... 188, 235Lights............................................................ 188Air Bag...................................... 48, 173, 187Brake Assist Warning................................ 152Brake Warning.............................................49Bulb Replacement.................................... 235Cruise..........................................................54Daytime Running.........................................26Dimmer Switch, Headlight...........................26Electronic Stability Program(ESP) Indicator........................................ 49, 152Exterior.............................................. 26, 188Hazard Warning Flasher........................... 190Headlights...................................................26High Beam...................................................26Illuminated Entry.........................................30Interior.........................................................28Malfunction Indicator (Check Engine)..........52Park......................................................26, 54Passing........................................................26

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279
Security Alarm
............................................. 50Service...................................................... 235Tire Pressure Monitoring (TPMS)............... 161Traction Control......................................... 152Turn Signals................................ 26, 54, 188Warning Instrument Cluster Descriptions..................................... 49, 54Loading Vehicle........................................ 76, 77Capacities................................................... 77Tires.......................................................... 245LocksAutomatic Door.................................... 14, 15Low Tire Pressure System............................. 161Lubrication, Body........................................... 221Lug Nuts/Bolts.............................................. 264
M
Maintenance Free Battery............................. 217Maintenance Schedule.................................. 211Malfunction Indicator Light (Check Engine)..... 52ManualService...................................................... 274Methanol....................................................... 266Mirrors............................................................. 23Electric Remote........................................... 24Exterior Folding........................................... 24Heated........................................................ 25Outside........................................................ 24Rearview..................................................... 23
Modifications/AlterationsVehicle........................................................... 7Monitor, Tire Pressure System...................... 161Mopar Parts.................................................. 273MP3 Control..................................................... 37Multi-Function Control Lever............................ 26
N
New Vehicle Break-In Period............................ 58
O
Occupant Restraints..................................... 164Octane Rating, Gasoline (Fuel)..................... 265Oil Change Indicator........................................ 45Reset........................................................... 45Oil Filter, Change.......................................... 219Oil Filter, Selection........................................ 219Oil Pressure Light............................................. 50Oil, Engine............................................ 218, 268Capacity.................................................... 268Checking................................................... 216Dipstick.................................................... 216Disposal................................................... 218Filter................................................ 219, 268Filter Disposal........................................... 218Identification Logo.................................... 218Materials Added To.................................. 218Pressure Warning Light............................... 50Recommendation............................ 218, 268
Synthetic................................................... 218Viscosity.................................................... 268Onboard Diagnostic System.............................55Operating Precautions.....................................55Operator ManualOwner's Manual........................................ 274Outside Rearview Mirrors.......................... 23, 24Overheating, Engine...................................... 206
P
Paint Care..................................................... 260Parking Brake..................................................59ParkSense System, Rear..................................69Passing Light....................................................26Pets............................................................... 187Phone Mode.................................................. 112Placard, Tire And Loading Information.......... 245PowerMirrors.........................................................24Outlet (Auxiliary Electrical Outlet).................37Steering................................................66, 67Windows......................................................39Power Steering Fluid..................................... 270Pregnant Women And Seat Belts.................. 170Preparation For Jacking....................... 190, 191
11

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280 R
Radial Ply Tires
.............................................. 250Radiator Cap (Coolant Pressure Cap)............ 224Radio Frequency General Information.................................. 148Rear Camera................................................... 73Rear Cross Path............................................. 158Rear ParkSense System.................................. 69Rearview Mirror............................................... 23Recreational Towing........................................ 85Reformulated Gasoline.................................. 266Refrigerant.................................................... 220Release, Hood................................................. 40Reminder, Seat Belt...................................... 166Remote Keyless EntryProgramming Additional Key Fobs.............. 11Replacement Bulbs....................................... 235Replacement Keys........................................... 11Replacement Tires......................................... 251Reporting Safety Defects............................... 273Restraints, Child............................................ 181Restraints, Head.............................................. 20Rotation, Tires............................................... 258
S
Safety Checks Inside Vehicle......................... 187Safety Checks Outside Vehicle...................... 188Safety Defects, Reporting.............................. 273Safety Information, Tire................................. 240Safety Tips..................................................... 186
Safety, Exhaust Gas...................................... 189Satellite Radio.............................................. 102Schedule, Maintenance................................ 211Seat Belts............................................ 165, 187Adjustable Shoulder Belt.......................... 169Adjustable Upper Shoulder Anchorage..... 169Adjustable Upper Shoulder Belt Anchorage..................................... 169Automatic Locking Retractor (ALR)........... 171Child Restraints........................................ 181Energy Management Feature................... 171Front Seat............................... 165, 166, 168Inspection................................................. 187Lap/Shoulder Belt Operation.................... 168Lap/Shoulder Belt Untwisting................... 169Lap/Shoulder Belts.................................. 166Operating Instructions.............................. 168Pregnant Women...................................... 170Rear Seat................................................. 166Reminder.................................................. 166Untwisting Procedure............................... 169Seat Belts Maintenance............................... 262Seats............................................................... 15Adjustment.................................................. 15Heated......................................................... 19Rear Folding................................................ 15Tilting........................................................... 15Security Alarm........................................... 13, 50Selection Of Coolant (Antifreeze).................. 268Sentry Key (Immobilizer).................................. 12
Service Assistance........................................ 271Service Contract............................................ 272Service Manuals........................................... 274SettingsPersonal......................................................89Settings, Audio.............................................. 107Shift Lever Override...................................... 207Shoulder Belts.............................................. 166Signals, Turn.......................................... 54, 188Sirius Satellite Radio..................................... 102Favorites................................................... 106Replay....................................................... 104SiriusXM Satellite RadioBrowse in SXM.......................................... 106Favorites................................................... 106Replay....................................................... 104Snow Chains (Tire Chains)............................ 257Snow Tires.................................................... 253Spare Tires........................................... 253, 255Spark Plugs................................................... 268Starting............................................................57Automatic Transmission..............................57Button..........................................................12Cold Weather...............................................57Engine Fails To Start....................................57Steering...........................................................15Column Lock................................................15Power....................................................66, 67Steering Wheel Audio Controls...................... 146Storage, Vehicle..................................... 35, 260

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281
Storing Your Vehicle
...................................... 260Supplemental Restraint System – Air Bag..... 174Sway Control, Trailer...................................... 154Synthetic Engine Oil....................................... 218
T
Telescoping Steering Column.......................... 15Tire And Loading Information Placard........... 245Tire Markings................................................. 240Tire Safety Information.................................. 240Tire Service Kit.................. 197, 198, 200, 202Tires................................... 188, 248, 253, 259Aging (Life Of Tires)................................... 251Air Pressure............................................... 248Chains....................................................... 257Changing................................................... 190Compact Spare......................................... 253General Information........................ 248, 253High Speed................................................ 249Inflation Pressure...................................... 249Jacking...................................................... 190Life Of Tires............................................... 251Load Capacity............................................ 245Pressure Monitoring System (TPMS)............................... 51, 161Quality Grading.......................................... 259Radial........................................................ 250Replacement............................................. 251Rotation.................................................... 258
Safety.............................................. 240, 248Sizes......................................................... 241Snow Tires................................................ 253Spare Tires...................................... 253, 255Spinning................................................... 250Trailer Towing.............................................. 82Tread Wear Indicators.............................. 251Wheel Nut Torque..................................... 264To Open Hood.................................................. 40Tongue Weight/Trailer Weight......................... 81Torque Converter Clutch.................................. 66Towing....................................................78, 209Disabled Vehicle....................................... 209Guide........................................................... 81Recreational................................................ 85Weight......................................................... 81Towing Behind A Motorhome........................... 85Traction............................................................ 86Traction Control............................................ 154Trailer Sway Control (TSC)............................. 154Trailer Towing.................................................. 78Hitches........................................................ 80Minimum Requirements.............................. 81Tips.............................................................. 84Trailer And Tongue Weight........................... 81Wiring.......................................................... 83Trailer Towing Guide........................................ 81Trailer Weight................................................... 81
TransmissionAutomatic.......................................... 60, 226Fluid.......................................................... 270Maintenance............................................ 226Transporting Pets.......................................... 187Tread Wear Indicators................................... 251Turn Signals.....................................................54
U
UconnectPhone Call Features
................................. 118Things You Should Know About YourUconnect Phone................................... 121Uconnect Phone..........................113, 114, 116Answer Or Ignore An Incoming Call — Call Currently In Progress..................... 120Answer Or Ignore An Incoming Call —No Call Currently In Progress................ 119Bluetooth Communication Link................ 124Call Continuation...................................... 121Call Controls............................................. 119Call Termination....................................... 121Cancel Command..................................... 114Connecting To A Particular Mobile Phone Or Audio Device After Pairing................ 116Help Command......................................... 114Join Calls.................................................. 12111

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