2020 Ram 1500 traction control

536 SERVICING AND MAINTENANCE
(Continued)
Dark Vapor Chrome, Black Satin Chrome, or Low Gloss
Clear Coat Wheels
Tire Chains (Traction Devices)
Use of traction devices require sufficient tire-to-body clear-
ance. Follow these recommendations to guard against
damage.
• Traction device must be of proper size for the tire, as recommended by the traction device manufacturer. Please follow the table below for proper tire size, chain type,
and axle recommendations:
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 USING MILD
SOAP AND WATER WITH A SOFT CLOTH. Used on a
regular basis; this is all that is required to maintain this
finish.
Vehicle Axle Recom
-
mendations Tire Sizes Chain Class
1500 Models Rear Only 275/65R18
275/55R20S Class
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 clearance between tires and other suspension components, it is important
that only traction 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.
2020_DT_1500_OM_US.book Page 536

538 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 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 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 stop on wet
pavement, as measured under controlled conditions on spec
-
ified 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, repre -
senting the tire's resistance to the generation of heat and its
ability to dissipate heat, when tested under controlled condi -
tions on a specified indoor laboratory test wheel.
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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664
Traction Control .................................................................. 204
Turn Signals ........................................... 71, 193, 289, 438, 441
Warning Instrument Cluster Descriptions .............. 181, 193
Limited-Slip Differential ................................................ 332, 515
Load Shed Battery Saver Mode............................................. 176
Load Shed Battery Saver On ................................................. 176
Load Shed Electrical Load Reduction .................................. 176
Load Shed Intelligent Battery Sensor ................................... 176
Loading Vehicle ...................................................................... 405 Tires....................................................................................... 521
Locks Automatic Door..................................................................... 41
Child Protection .................................................................... 42
Power Door ............................................................................ 36
Low Tire Pressure System ..................................................... 227
Lubrication, Body ................................................................... 502
Lug Nuts................................................................................... 547
Lug Nuts/Bolts ....................................................................... 546 M
Maintenance..................................................................... 100, 105
Maintenance Free Battery ...................................................... 491
Maintenance Schedule ........................................................... 482
Malfunction Indicator Light (Check Engine) ...................... 183
Manual Service ................................................................................... 656
Media Hub ............................................................................... 623 Memory Seat ..............................................................................47
Methanol...................................................................................550
Mirrors ........................................................................................59
Electric Powered ....................................................................61
Heated .....................................................................................65
Memory...................................................................................47
Outside....................................................................................61
Rearview ................................................................... 59, 60, 431 Trailer Towing .......................................................................64
Modifications/Alterations Vehicle.....................................................................................15
Monitor, Tire Pressure System ..............................................227
Mopar Parts..............................................................................655
MP3 Control ............................................................................. 623
Multi-Function Control Lever .................................................68 N
New Vehicle Break-In Period ................................................297 O
Occupant Restraints ................................................................234
Octane Rating, Gasoline (Fuel)......................................548, 549
Off-Pavement Driving (Off-Road) ........................................429
Off-Road Driving (Off-Pavement) ........................................429
Oil Filter, Change .................................................................... 494
Oil Filter, Selection ..................................................................494
Oil Pressure Light ...................................................................181
Oil, Engine ........................................................................492, 554
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669
Inflation Pressure ................................................................ 526
Life Of Tires ......................................................................... 529
Load Capacity .............................................................. 521, 522
Pressure Monitoring System (TPMS) ....................... 185, 227
Quality Grading .................................................................. 538
Radial .................................................................................... 527Replacement......................................................................... 530
Rotation ................................................................................ 537
Safety............................................................................. 516, 525
Sizes....................................................................................... 517Snow Tires ............................................................................ 532
Spare Tires ............................................................ 532, 533, 534
Spinning................................................................................ 528
Trailer Towing ..................................................................... 415
Tread Wear Indicators ........................................................ 529
Wheel Nut Torque .............................................................. 546
To Open Hood ......................................................................... 105
Tongue Weight/Trailer Weight ............................................ 413
Tonneau Cover ................................................................ 150, 540
Tonneau Cover Cleaning ....................................................... 540
Towing.............................................................................. 407, 478 Disabled Vehicle.................................................................. 478
Guide..................................................................................... 413
Recreational.......................................................................... 422
Weight................................................................................... 413
Towing Behind A Motorhome .............................................. 422 Traction .....................................................................................427
Traction Control ......................................................................210
Traction Control Switch .........................................................210
Trailer Sway Control (TSC) ................................................... 210
Trailer Towing .........................................................................407 Cooling System Tips ........................................................... 421Hitches ..................................................................................411
Minimum Requirements ....................................................413
Mirrors ....................................................................................64
Tips ........................................................................................420Trailer And Tongue Weight...............................................413
Wiring ...................................................................................419
Trailer Towing Guide .............................................................413
Trailer Weight ..........................................................................413
Transfer Case ...........................................................................515 Electronically Shifted ..................................................311, 314
Fluid ...................................................................................... 556
Transmission ............................................................................304 Automatic .....................................................................304, 513
Fluid ...................................................................................... 556
Maintenance .........................................................................513
Shifting ..................................................................................302
Transporting Pets .................................................................... 285
Tread Wear Indicators ............................................................ 529
Turn Signals ....................................................... 71, 193, 438, 441
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