spare tire Ram 2500 2020 Owner's Guide

436SERVICING AND MAINTENANCE
(Continued)
2500 Models
Install on rear tires only.
For LT245/70R17E, LT275/70R18E and
LT285/60R20E tires, use of a U-class snow
chain is recommended.
2500 Power Wagon Models
Install on rear tires only.
For a LT285/70R17D tire, use of a U-class
snow chain is recommended.
3500 (Single Rear Wheel) Models
Install on rear tires only.
For LT275/70R18E and LT285/60R20E
tires, use of a U-class snow chain is recom -
mended.
3500 (Dual Rear Wheel) Models
Install on front/rear tires.
For a LT235/80R17E tire, use of a U-class
snow chain is recommended.
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 aggressive tread designs such
as those on all season type tires. Rotation will
WARNING!
Using tires of different size and type (M+S,
Snow) between front and rear axles can
cause unpredictable handling. You could lose
control and have a collision.
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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438SERVICING 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 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 addi -
tion 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 varia -
tions 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 speci -
fied 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
When replacing a flat, the spare tire may
have to be remounted on the rim, or
installed at a different location, to maintain
the correct placement of the tire on the
wheel relative to the tire/wheel position on
the truck. For example, if the spare is used
to replace an outer rear tire it will have to be
remounted on the rim so that the wheel is
dished inward. That way the tread design of
asymmetrical tires and the white writing of
the OWL tires will maintain proper position.
CAUTION! (Continued)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.

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486MULTIMEDIA
Air Suspension — If Equipped
After pressing the Suspension button on the touchscreen, the following settings will be available: Headlight Off Delay
–+
NOTE:
When the “Headlight Off Delay” feature is selected, the driver can choose to have the headlights remain on for 0, 30, 60, or 90 seconds when exiting
the vehicle.
Setting Name Selectable Options
Auto Entry/Exit — If EquippedOnOff
Easy Exit Seat — If Equipped OnOff
NOTE:
When the “Easy Exit Seat” feature is selected, the Driver’s seat will automatically move rearward once the engine is shut off.
Setting Name Selectable Options
Setting NameSelectable Options
Display Suspension MessagesAllWarnings Only
Tire Jack Mode On Off
NOTE:
When the “Tire Jack Mode” feature is selected, the air suspension system is disabled to assist with changing a spare tire.
Transport Mode On Off

NOTE:
When the “Transport Mode” feature is selected, the air suspension system lowers and then disables to assist with flat bed towing.

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MULTIMEDIA505
Suspension — If Equipped
After pressing the Suspension button on the touchscreen, the following settings will be available:
Setting Name Selectable Options
Auto Entry/Exit — If EquippedOnOff
Easy Exit Seat — If Equipped OnOff
NOTE:
When the “Easy Exit Seat” feature is selected, the Driver’s seat will automatically move rearward once the engine is shut off.
Setting Name Selectable Options
Display Suspension MessagesAllWarning Only
Tire Jack Mode On Off
NOTE:
When the “Tire Jack Mode” feature is selected, the air suspension system is disabled to assist with changing a spare tire. Transport Mode On Off
NOTE:
When the “Transport Mode” feature is selected, the air suspension system lowers and then disables to assist with flat bed towing. Wheel Alignment Mode On Off
NOTE:
Before performing a wheel alignment, the “Wheel Alignment Mode” must be enabled. Refer to an authorized dealer for further information.
9

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541
Belts, Seat
..................................................... 209
Blind Spot Monitoring.................................... 153
Body Builders Guide........................................ 12
Body Mechanism Lubrication........................ 408
B-Pillar Location............................................. 426
Brake Assist System...................................... 145
Brake Control System.................................... 145Brake Fluid.......................................... 415, 454
Brake System...................................... 415, 444
Fluid Check............................................... 415Master Cylinder......................................... 415
Parking...................................................... 229
Warning Light............................................ 130
Brake/Transmission Interlock....................... 232
Bulb Replacement......................................... 372Bulbs, Light.......................................... 210, 372
C
Cab Top Clearance Lights
.............................. 378
Camera.......................................................... 302
Camera, AUX........................................ 304, 311
Camera, Rear...................................... 302, 305
Camper.......................................................... 100
Capacities, Antifreeze (Engine Coolant)......... 451Capacities, Fluid............................................ 451
Caps, Filler Oil (Engine)
...................................... 391, 397
Radiator (Coolant Pressure)...................... 413
Car Washes................................................... 440
Carbon Monoxide Warning.................. 208, 448
Cargo Light....................................................... 52
Cellular Phone.............................................. 527
Center High Mounted Stop Light................... 377
Center Seat Storage Compartment.................. 82
Charge Air Cooler.......................................... 415
Chart, Tire Sizing........................................... 423
Check Engine Light (Malfunction Indicator
Light)............................................................. 142
Checking Your Vehicle For Safety................. 208
Checks, Safety.............................................. 208Child Restraint.............................................. 190
Child RestraintsBooster Seats
........................................... 193
Child Seat Installation..................... 201, 202
How To Stow An unused ALR Seat Belt.... 200Infant And Child Restraints....................... 192
Locating The LATCH Anchorages.............. 198
Lower Anchors And Tethers For Children.. 195
Older Children And Child Restraints......... 193Seating Positions...................................... 194
Clean Air Gasoline......................................... 446
CleaningWheels
..................................................... 434
Climate Control................................................ 57
Automatic.................................................... 61
Manual........................................................ 57
Cold Weather Operation............................... 215
Compact Spare Tire...................................... 433
Contract, Service.......................................... 537
Cooling Pressure Cap (Radiator Cap)............ 413
Cooling System............................................. 411
Adding Coolant (Antifreeze)...................... 413
Coolant Level................................... 412, 414
Cooling Capacity....................................... 451
Disposal Of Used Coolant......................... 414
Drain, Flush, And Refill............................. 412
Inspection................................................. 414Points To Remember................................ 414
Pressure Cap............................................ 413
Radiator Cap............................................. 413Selection Of Coolant (Antifreeze)
............... 412, 451, 452, 454
Corrosion Protection..................................... 439
Cruise Control (Speed Control)............. 273, 275
Cruise Light................................................... 141Cupholders.......................................................87
Customer Assistance.................................... 536
Cybersecurity................................................ 458
D
Daytime Running Lights
...................................49
Dealer Service............................................... 396
Defroster, Rear Window...................................57
Defroster, Windshield............................ 57, 209Delay (Intermittent) Wipers..............................55
Diagnostic System, Onboard......................... 141
Diesel Exhaust Brake.................................... 230
Diesel Fuel.................................................... 448
Diesel Fuel Requirements............................. 448
Diesel Fuel System, Re-Priming.................... 407
11

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547
Seats
................................................. 32, 33, 34
Adjustment........................................... 32, 34
Easy Entry................................................... 37
Folding Floor............................................... 86
Head Restraints.......................................... 39
Memory....................................................... 35
Power.......................................................... 34Rear Folding................................................ 32
Reclining Rear............................................. 33
Tilting.......................................................... 32Security Alarm........................................ 25, 131
Selection Of Coolant (Antifreeze)......... 452, 454
Sentry Key Key Programming
........................................ 24
Sentry Key (Immobilizer).................................. 24Sentry Key Replacement................................. 24
Service Assistance......................................... 536
Service Contract............................................ 537
Service Manuals............................................ 539Shift Lever Override....................................... 365
Shifting.......................................................... 231
Automatic Transmission.................. 233, 237
Transfer Case............................................ 249
Transfer Case, Shifting Into Transfer CaseNeutral (N)
............................................ 333
Transfer Case, Shifting Out Of Transfer Case Neutral (N)
............................................ 334
Side Steps, Power............................................ 28
Signals, Turn................................. 52, 140, 210
Siri................................................................ 532
Sliding Rear Window, Power............................ 72
Snow Chains (Tire Chains)............................ 435
Snow Plow.................................................... 329
Snow Tires.................................................... 432
Spare Tires.......................................... 433, 434Spark Plugs................................................... 452
Speed ControlAccel/Decel
.............................................. 275Cancel...................................................... 275
Resume.................................................... 275
Speed Control (Cruise Control)............ 273, 275
Stabilizer/Sway Bar System.......................... 253
Starting....................................... 211, 212, 215Automatic Transmission.................. 211, 215
Button......................................................... 18
Cold Weather............................................ 215
Engine Block Heater........................ 218, 227Engine Fails To Start................................. 214
Starting And Operating.................................. 212
Starting Procedures............................. 212, 215
Starting Procedures (Diesel Engines)........... 215
Starting Procedures (Gas Engines)............... 211
SteeringTilt Column
.................................................. 41
Wheel, Heated...................................... 41, 42
Wheel, Tilt.................................................... 41
Steering Wheel Audio Controls...................... 525
Steering Wheel Mounted Sound System
Controls
........................................................ 525
Steps, Power Side............................................28
Storage............................................................82
Storage Compartment, Center Seat.................82
Storage, Vehicle..................................... 69, 439Storing Your Vehicle...................................... 439
Sun Roof...................................................72, 74
Sunglasses Storage.........................................92Sunshade Operation........................................74
Sway Control, Trailer..................................... 153
Synthetic Engine Oil...................................... 398
T
Tailgate
......................................................... 100
Tailgate, Electronic Lowering...........................75
Telescoping Steering Column...........................41
Temperature Control, Automatic (ATC).............68
TiltDown
...........................................................34
Up................................................................34
Tilt Steering Column.........................................41
Tip Start............................................... 211, 216Tire And Loading Information Placard........... 426
Tire Markings................................................ 422
Tire Safety Information.................................. 42211

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548
Tires
................................... 210, 428, 433, 438
Aging (Life Of Tires)................................... 431
Air Pressure............................................... 428
Chains....................................................... 435
Compact Spare......................................... 433
Dual................................................. 437, 444
General Information........................ 428, 433High Speed................................................ 429
Inflation Pressure...................................... 429
Life Of Tires............................................... 431Load Capacity.................................. 426, 427
Pressure Monitoring System (TPMS)
........................................ 135, 163
Quality Grading.......................................... 438
Radial........................................................ 429Replacement............................................. 431
Rotation.................................................... 436
Safety.............................................. 422, 428
Sizes.......................................................... 423Snow Tires................................................. 432
Spare Tires...................................... 433, 434
Spinning.................................................... 430
Trailer Towing............................................ 324
Tread Wear Indicators............................... 430
Wheel Nut Torque..................................... 444
To Open Hood.................................................. 74
Tongue Weight/Trailer Weight....................... 323
Tonneau Cover.................................... 101, 440
Tonneau Cover Cleaning................................ 440
Torque Converter Clutch................................ 243
Towing................................................. 318, 369
Disabled Vehicle....................................... 369
Guide........................................................ 323
Recreational............................................. 331
Weight...................................................... 323
Towing Behind A Motorhome........................ 331
Traction......................................................... 335Traction Control............................................ 153
Trailer Sway Control (TSC)............................. 153
Trailer Towing............................................... 318Cooling System Tips................................. 329
Hitches..................................................... 322
Minimum Requirements........................... 323
Mirrors......................................................... 46
Tips........................................................... 328Trailer And Tongue Weight........................ 323
Wiring....................................................... 327
Trailer Towing Guide..................................... 323
Trailer Weight................................................ 323Transfer Case............................................... 419
Electronically Shifted................................ 244
Fluid................................................ 454, 457
Transmission................................................ 233
Automatic............................... 233, 237, 416
Fluid................................................ 454, 457
Maintenance............................................ 416
Shifting..................................................... 231
Transporting Pets.......................................... 208
Tread Wear Indicators.................................. 430
Turn Signals......................... 52, 140, 374, 376
U
UconnectUconnect Settings
.. 466, 467, 483, 485, 502, 504
Uconnect PhoneCall Continuation
...................................... 524
Uconnect SettingsCustomer Programmable Features
.. 28, 466, 467, 483, 485, 502,
504
Passive Entry Programming
............... 28, 466, 483, 502
Uconnect Voice Command............................ 529
Uniform Tire Quality Grades.......................... 438
Universal Garage Door Opener (HomeLink).....76
Universal Transmitter.......................................76
Unleaded Gasoline........................................ 446
Untwisting Procedure, Seat Belt.................... 176
USB............................................................... 525
Utility Rails, Rear Cargo Area...........................98
V
Vehicle Identification Number (VIN)
.............. 444
Vehicle Loading.................................... 317, 427
Vehicle Modifications/Alterations....................12
Vehicle Storage...................................... 69, 439

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