inflation pressure RAM 1500 2021 Owner's Manual

456SERVICING AND MAINTENANCE
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.
WHEEL AND WHEEL TRIM CARE
All wheels and wheel trim, especially aluminum
and chrome plated wheels, should be cleaned
regularly using mild (neutral Ph) soap and water
to maintain their luster and to prevent
corrosion. Wash wheels with the same soap
solution recommended for the body of the
vehicle and remember to always wash when the
surfaces are not hot to the touch.
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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491
Tires
................................... 371, 449, 455, 460Aging (Life Of Tires)................................... 452Air Pressure............................................... 449Chains....................................................... 458Compact Spare......................................... 455Dual........................................................... 467General Information........................ 449, 455High Speed................................................ 451Inflation Pressure...................................... 450Life Of Tires............................................... 452Load Capacity............................................ 447Pressure Monitoring System (TPMS)........................................ 131, 327Quality Grading.......................................... 460Radial........................................................ 451Replacement............................................. 453Rotation.................................................... 460Safety.............................................. 443, 449Sizes.......................................................... 444Snow Tires................................................. 454Spare Tires...................................... 455, 456Spinning.................................................... 452Trailer Towing............................................ 222Tread Wear Indicators............................... 452Wheel Nut Torque..................................... 467To Open Hood.................................................. 84Tongue Weight/Trailer Weight....................... 219Tonneau Cover....................................... 97, 462Tonneau Cover Cleaning................................ 462
Towing................................................. 214, 392Disabled Vehicle....................................... 392Guide........................................................ 218Recreational............................................. 230Weight...................................................... 218Towing Behind A Motorhome........................ 230Traction......................................................... 234Traction Control............................................ 318Trailer Reverse Steering Control................... 219Trailer Sway Control (TSC)............................. 318Trailer Towing............................................... 214Hitches..................................................... 218Minimum Requirements........................... 221Mirrors......................................................... 48Tips........................................................... 227Trailer And Tongue Weight........................ 219Wiring....................................................... 225Trailer Towing Guide..................................... 218Trailer Weight................................................ 218Transfer Case............................................... 427Electronically Shifted....................... 161, 163Fluid......................................................... 478Transmission................................................ 156Automatic........................................ 156, 426Fluid......................................................... 478Maintenance............................................ 426Shifting..................................................... 154Transporting Pets.......................................... 369Tread Wear Indicators.................................. 452Turn Signals......................... 55, 136, 439, 441
U
UconnectPhone Call Features
................................. 276Things You Should Know About Your Uconnect Phone................................... 279Uconnect App................................................ 284Uconnect Phone................................... 272, 273Answer Or Ignore An Incoming Call — Call Currently In Progress..................... 278Answer Or Ignore An Incoming Call — No Call Currently In Progress................ 277Bluetooth Communication Link................ 281Call Continuation...................................... 279Call Controls............................................. 277Call Termination....................................... 279Cancel Command..................................... 273Connecting To A Particular Mobile Phone Or Audio Device After Pairing................ 275Help Command......................................... 273Join Calls.................................................. 279Making A Phone Or Audio Device AFavorite................................................ 275Making A Second Call While Current Call Is In Progress........................................ 278Managing Your Favorites.......................... 276Natural Speech......................................... 272Operation.................................................. 272Overview................................................... 27111

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