wheel size Ram 4500 Chassis Cab 2018 Owner's Manual

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.
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 lim-
ited 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 con-
trol.
Collapsible Spare Tire — If Equipped
The collapsible spare is for temporary emer-
gency use only. You can identify if your ve-
hicle 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.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 lim-
ited 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 con-
trol.
Full Size Spare — If Equipped
The full size spare is for temporary emer-
gency 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.
205

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 re-
moved and reinstalled on the vehicle, the lug
nuts/bolts should be torqued using a properly
calibrated torque wrench using a high quality
six sided (hex) deep wall socket.
Torque Specifications
Lug Nut/Bolt
Torque Lug Nut/
Bolt Type **Lug
Nut/Bolt Size Lug Nut/
Bolt
Socket Size
120-150 Ft-Lbs(160-
200 N·m) Cone
M14 x1.50 22 mm
130-160
Ft-Lbs(190-
220 N·m) Flanged
**Use only your authorized dealer recom-
mended lug nuts/bolts and clean or remove
any dirt or oil before tightening.
Inspect the wheel mounting surface prior to
mounting the tire and remove any corrosion
or loose particles. NOTE:
Dual wheels are flat mounted, center piloted.
The lug nuts are a two-piece assembly. When
the tires are being rotated or replaced, clean
these lug nuts and add two drops of oil at the
interface between the hex and the washer.
Ensure that the socket is fully engaged on the
lug nut/bolt (do not insert it half way).
Do not oil wheel studs. For chrome wheels, do
not substitute with chrome plated wheel
nuts.
Oil Interface Location
TECHNICAL SPECIFICATIONS
210

Speed ControlAccel/Decel ...............135
Cancel ..................135
Resume .................135
Speed Control (Cruise Control) ......133
Starting ................120, 121
Engine Block Heater ..........124
Starting Procedures .............121
Starting Procedures (Diesel Engines) . .121
Starting Procedures (Gas Engines) . . . .120
Steering Tilt Column ................28
Wheel, Heated ..............28
Wheel, Tilt .................28
Steering Wheel Mounted Sound System Controls .........257
Storage, Vehicle ................44
Telescoping Steering Column ........28
Temperature Control, Automatic (ATC) . .43
Text Messaging ...............271
Tilt Steering Column .............28
Tire And Loading Information Placard . .196
Tire Markings .................191
Tires ............117, 199, 204, 207
Aging (Life Of Tires) ..........202
Air Pressure ...............199 Changing
.................160
Compact Spare .............204
Dual ................210, 211
General Information .......199, 204
High Speed ...............200
Inflation Pressures ...........200
Jacking ..................160
Life Of Tires ...............202
Load Capacity ..............196
Pressure Monitor System (TPMS) . . .72
Pressure Warning Light .........65
Quality Grading .............207
Radial ..................201
Replacement ..............202
Safety ...............191, 199
Sizes ...................192
Snow Tires ................204
Spare

Tire .........204, 205, 206
Spinning .................201
Tread Wear Indicators .........202
Wheel Nut Torque ........163, 210
Tire Safety Information ...........191
To Open Hood .................44
Towing .................142, 169
Disabled Vehicle ............169
Guide ...................142
Recreational ...............147 Weight
..................142
Towing Vehicle Behind A Motorhome . .147
Trailer Towing ................142
Minimum Requirements .......142
Trailer Towing Guide ............142
Trailer Weight ................142
Transfer Case Electronically Shifted .........132
Fluid ................216, 218
Transmission Automatic ................129
Fluid ................216, 218
Shifting .................128
Transporting Pets ..............115
Tread Wear Indicators ...........202
Turn Signals ...............34, 68
Uconnect 3.0 ................227
Uconnect (Hands-Free Phone) Making A Phone Call ......264, 270
Receiving A Call ............264
Uconnect Phone . . . .264, 269, 270, 271
Uconnect Settings Customer Programmable Features . . .19
Passive Entry Programming .......19
Uconnect Voice Command .....269, 272
Uniform Tire Quality Grades ........207
INDEX
294