tire size RAM 1500 2023 Owner's Manual

SERVICING AND MAINTENANCE381
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 original 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
studded 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.
For restrictions when towing with a spare tire designated
for temporary emergency use
Úpage 179.
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.
Compact Spare Tire — If Equipped
The compact spare is for temporary emergency use only.
You can identify if your vehicle is equipped with a compact
spare by looking at the spare tire description on the Tire
And Loading Information Placard located on the driver’s
side door opening or on the sidewall of the tire. Compact
spare tire descriptions begin with the letter “T” or “S”
preceding the size designation. Example: T145/80D18
103M.
T, S = Temporary Spare Tire
Since this tire has limited tread life, the original equipment
tire should be repaired (or replaced) and reinstalled on
your vehicle at the first opportunity.
Do not install a wheel cover or attempt to mount a
conventional tire on the compact spare wheel, since the
wheel is designed specifically for the compact spare tire.
Do not install more than one compact spare tire and wheel
on the vehicle at any given time.
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.
WARNING!
Compact and collapsible spares are for temporary
emergency use only. With these spares, do not drive
more than 50 mph (80 km/h). Temporary use spares have limited tread life. When the tread is worn to the
tread wear indicators, the temporary use spare tire
needs to be replaced. Be sure to follow the warnings,
which apply to your spare. Failure to do so could result
in spare tire failure and loss of vehicle control.8

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382SERVICING AND MAINTENANCE
Collapsible Spare Tire — If Equipped
The collapsible spare is for temporary emergency use only.
You can identify if your vehicle is equipped with a
collapsible spare by looking at the spare tire description
on the Tire And Loading Information Placard located on
the driver’s side door opening or on the sidewall of the tire.
Collapsible spare tire description
example: 165/80-17 101P.
Since this tire has limited tread life, the original equipment
tire should be repaired (or replaced) and reinstalled on
your vehicle at the first opportunity.
Inflate collapsible tire only after the wheel is properly
installed to the vehicle. Inflate the collapsible tire using
the electric air pump before lowering the vehicle.
Do not install a wheel cover or attempt to mount a
conventional tire on the collapsible spare wheel, since the
wheel is designed specifically for the collapsible spare tire.
Full Size Spare — If Equipped
The full size spare is for temporary emergency use only.
This tire may look like the originally equipped tire on the
front or rear axle of your vehicle, but it is not. This spare
tire may have limited tread life. When the tread is worn to
the tread wear indicators, the temporary use full size
spare tire needs to be replaced. Since it is not the same as
your original equipment tire, replace (or repair) the original
equipment tire and reinstall on the vehicle at the first
opportunity.
Limited Use Spare — If Equipped
The limited use spare tire is for temporary emergency use
only. This tire is identified by a label located on the limited
use spare wheel. This label contains the driving limitations
for this spare. This tire may look like the original equipped
tire on the front or rear axle of your vehicle, but it is not.
Installation of this limited use spare tire affects vehicle
handling. Since it is not the same as your original
equipment tire, replace (or repair) the original equipment
tire and reinstall on the vehicle at the first opportunity.WARNING!
Compact and Collapsible spares are for temporary
emergency use only. With these spares, do not drive
more than 50 mph (80 km/h). Temporary use spares
have limited tread life. When the tread is worn to the
tread wear indicators, the temporary use spare tire
needs to be replaced. Be sure to follow the warnings,
which apply to your spare. Failure to do so could result
in spare tire failure and loss of vehicle control.
WARNING!
Limited use spares are for emergency use only.
Installation of this limited use spare tire affects vehicle
handling. With this tire, do not drive more than the
speed listed on the limited use spare wheel. Keep
inflated to the cold tire inflation pressures listed on your
Tire And Loading Information Placard located on the
driver’s side B-pillar or the rear edge of the driver’s side
door. Replace (or repair) the original equipment tire at
the first opportunity and reinstall it on your vehicle.
Failure to do so could result in loss of vehicle control.

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384SERVICING AND MAINTENANCE
SNOW TRACTION DEVICES
Use of traction devices require sufficient tire-to-body clearance. Due to limited clearance, the following snow traction devices are recommended. Follow these recommendations to
guard against damage:
Snow traction device must be of proper size for the tire, as recommended by the snow traction device manufacturer.
 No other tire sizes are recommended for use with the snow traction device.
 Please follow the table for the recommended tire size, axle and snow traction device:
4x2 (2WD)
Trim Level Axle
Tire/Wheel Size Snow Traction Device
(Maximum Projection Beyond Tire Profile Or Equivalent)
HFE
Tradesman
Bighorn Lonestar Laramie Rear
275/65R18
275/55R20 S Class
Longhorn Sport
Limited Rear
275/55R20 S Class
REBEL Not Chainable

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SERVICING AND MAINTENANCE385
4x4 (4WD)
Trim Level Axle
Tire/Wheel Size Snow Traction Device
(Maximum Projection Beyond Tire Profile Or Equivalent)
Tradesman
Bighorn Lonestar Laramie Rear
275/65R18
275/55R20 S Class
Longhorn Sport
Limited Rear
275/55R20 S Class
REBEL Not Chainable
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.
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392
TECHNICAL SPECIFICATIONS
VEHICLE IDENTIFICATION NUMBER (VIN)
The VIN is found on the left front corner of the instrument
panel, visible through the windshield.

Vehicle Identification Number

NOTE:
It is illegal to remove or alter the VIN.
BRAKE SYSTEM
If power assist is lost for any reason (for example,
repeated brake applications with the engine off), the
brakes will still function. However, you will experience a
substantial increase in braking effort to stop the vehicle. If either the front or rear hydraulic systems lose normal
braking capability, the remaining system will still function
with some loss of overall braking effectiveness. This will
be evident by increased pedal travel during application,
greater pedal force required to slow or stop, and the Brake
Warning Light and the Anti-Lock Brake System (ABS)
Warning Light will activate during brake use.
WHEEL AND TIRE TORQUE SPECIFICATIONS
Proper lug nut/bolt torque is very important to ensure that
the wheel is properly mounted to the vehicle. Any time a
wheel has been removed and reinstalled on the vehicle,
the lug nuts/bolts should be torqued using a properly
calibrated torque wrench using a six-sided (hex) deep wall
socket.
TORQUE SPECIFICATIONS
**Use only authorized dealer recommended lug
nuts/bolts and clean or remove any dirt or oil before
tightening.
NOTE:Do not oil wheel studs. For chrome wheels, do not
substitute with chrome plated wheel nuts.
Inspect the wheel mounting surface prior to mounting the
tire and remove any corrosion or loose particles.

Wheel Mounting Surface

Tighten the lug nuts/bolts in a star pattern until each nut/
bolt has been tightened twice. Ensure that the socket is
fully engaged on the lug nut/bolt (do not insert it halfway).
Lug Nut/
Bolt Torque Lug Nut/
Bolt Type **Lug Nut/
Bolt Size Lug Nut/
Bolt Socket Size
130 ft-lb
(176 N·m) Cone M14 x 1.50 22 mm

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411
Replacement ........................................................... 380
Rotation ................................................................... 386
Run Flat ................................................................... 378
Safety.............................................................. 370
, 377
Sizes ........................................................................ 371
Snow Tires ............................................................... 381 Spare Tires ..................................................... 381
, 382
Spinning .................................................................. 379
Trailer Towing .......................................................... 179
Tread Wear Indicators ............................................ 379
Types ....................................................................... 380 Wheel Nut Torque ................................................... 392
To Open Hood..................................................................74
Tongue Weight/Trailer Weight ........................... 173
, 176
Tonneau Cover ...................................................... 86, 388
Tonneau Cover Cleaning ............................................. 388
Tow/Haul Mode............................................................ 130
Towing .................................................................. 173
, 330
Disabled Vehicle ..................................................... 330
Guide ....................................................................... 176 Recreational ............................................................ 186
Weight...................................................................... 176
Towing Behind A Motorhome ...................................... 186
Traction ......................................................................... 189
Traction Control............................................................ 268 Trailer Reverse Steering Control..................................177
Trailer Sway Control (TSC) .................................. 173
, 268
Trailer Tire Pressure ..................................................... 280
Trailer Towing ................................................................ 173 Frontal Area ............................................................. 173
Hitches .....................................................................176
Minimum Requirements ......................................... 179
Mirrors ........................................................................ 42
Tips ...........................................................................184 Trailer And Tongue Weight...................................... 176Weight Carrying Hitch.............................................. 173Weight Distributing Hitch ........................................ 174
Wiring ....................................................................... 182
Trailer Towing Guide ..................................................... 176
Trailer Weight ................................................................ 176
Transfer Case ................................................................ 354 Electronically Shifted..................................... 130
, 132
Fluid.......................................................................... 397
Transmission................................................................. 125 Automatic ....................................................... 125
, 353
Fluid.......................................................................... 397 Maintenance............................................................353Shifting .....................................................................124
Transporting Pets ......................................................... 311
Tread Wear Indicators ..................................................379
Tri-Fold Tonneau Cover .................................................. 86 Cleaning ..................................................................... 92
Install.......................................................................... 90
Removal ..................................................................... 87
Turn Signals ........................................ 49
, 115, 366, 368
UUconnect Phone Call Features................................................ 232Things You Should Know About Your Uconnect Phone................................................. 235
Uconnect Settings ................................................... 191
Uconnect (Radio) .......................................................... 191
Uconnect 4C Nav With 12-Inch Display ...................... 191
Uconnect 4C/4C Nav With 8.4-Inch Display............... 191
Uconnect Phone ..................................................229
, 230
Answer Or Ignore An Incoming Call — Call Currently In Progress .................................. 233
Answer Or Ignore An Incoming Call — No Call Currently In Progress ............................ 233
Bluetooth Communication Link.............................. 236
Call Continuation..................................................... 234
Call Controls ............................................................ 233
Call Termination ...................................................... 234
Cancel Command.................................................... 230
Connecting To A Particular Mobile Phone Or Audio Device After Pairing ............................ 231
Help Command ....................................................... 230 Join Calls.................................................................. 234
Making A Phone Or Audio Device A Favorite ......... 231
Making A Second Call While Current Call Is In Progress ......................................................... 234
Managing Your Favorites ........................................ 232 Natural Speech ....................................................... 229Operation ................................................................. 229
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