2015 Ram 2500 spare wheel

WARNING!(Continued)
•Never put floor mats or other floor coverings on top
of already installed floor mats. Additional floor
mats and other coverings will reduce the size of the
pedal area and interfere with the pedals.
• Check mounting of mats on a regular basis. Always
properly reinstall and secure floor mats that have
been removed for cleaning.
•
Always make sure that objects cannot fall into the
driver footwell while the vehicle is moving. Objects
can become trapped under the brake pedal and
accelerator pedal causing a loss of vehicle control.
• If required, mounting posts must be properly in-
stalled, if not equipped from the factory.
Failure to properly follow floor mat installation or
mounting can cause interference with the brake
pedal and accelerator pedal operation causing loss of
control of the vehicle.
Periodic Safety Checks You Should Make Outside
The Vehicle
Tires
Examine tires for excessive tread wear and uneven wear
patterns. Check for stones, nails, glass, or other objects
lodged in the tread or sidewall. Inspect the tread for cuts
and cracks. Inspect sidewalls for cuts, cracks, and bulges.
Check the wheel bolts for tightness. Check the tires
(including spare) for proper cold inflation pressure.
Lights
Have someone observe the operation of brake lights and
exterior lights while you work the controls. Check turn
signal and high beam indicator lights on the instrument
panel.
Door Latches
Check for proper closing, latching, and locking.
2
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 117

•Rain Sensing Auto Wipers
When this feature is selected, the system will automati-
cally activate the windshield wipers if it senses moisture
on the windshield. To make your selection, press the
“Rain Sensing” button on the touchscreen to select from
on or off. Press the back arrow button on the touchscreen
to return to the previous menu.
• Hill Start Assist — If Equipped
When this feature is selected, the Hill Start Assist (HSA)
system is active. Refer to “Electronic Brake Control
System” in “Starting And Operating” for system function
and operating information. To make your selection, press
the “Hill Start Assist” button on the touchscreen to select
from on or off. Press the back arrow button on the
touchscreen to return to the previous menu. •
Two Or Four Corner Air Suspension Modes — If
Equipped
There are four air suspension modes designed to protect
the system in unique situations. Tire Jack Mode is se-
lected to assist in changing a spare tire. Transport Mode
is selected to assist when the vehicle is being flat bed
towed. Wheel Alignment Mode is selected before per-
forming a wheel alignment, refer to your authorized
dealer for information. Protection Mode will automati-
cally be selected to “protect” the air suspension system
when the payload has been exceeded or load leveling
cannot be achieved.
Lights
After pressing the “Lights” button on the touchscreen the
following settings will be available.
378 UNDERSTANDING YOUR INSTRUMENT PANEL

system has been activated or the check-mark is removed
showing the system has been deactivated.
•Suspension Display Messages
When “All” is selected, all the Air Suspension Alerts will
be displayed. When “Warning” is selected only the Air
Suspension Warnings will be displayed.
• Automatic Aero Mode (1500 Model Only)
When this feature is selected the Ride Height will auto-
matically be adjusted depending on the vehicle speed.
Press the box next to your selection and a check-mark
appears next to the feature showing the system has been
activated or the check-mark is removed showing the
system has been deactivated.
• Tire Jack Mode
When this feature is selected the air suspension system is
disabled to assist with changing a spare tire. Press the box
next to your selection and a check-mark appears next to the feature showing the system has been activated or the
check-mark is removed showing the system has been
deactivated.
•
Transport Mode
When this feature is selected the air suspension system
lowers and then disables to assist with flat bed towing.
Press the box next to your selection and a check-mark
appears next to the feature showing the system has been
activated or the check-mark is removed showing the
system has been deactivated.
• Wheel Alignment Mode
Before performing a wheel alignment this mode must be
enabled. Refer to your authorized dealer for further
information.
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UNDERSTANDING YOUR INSTRUMENT PANEL 385

▫Trailer Sway Control (TSC) ..............586
▫ Hill Descent Control (HDC) — If Equipped . . .587
 TIRE SAFETY INFORMATION .............591
▫ Tire Markings ....................... .591
▫ Tire Identification Number (TIN) ...........594
▫ Tire Terminology And Definitions ..........596
▫ Tire Loading And Tire Pressure ...........597
 TIRES — GENERAL INFORMATION ........601
▫ Tire Pressure ....................... .601
▫ Tire Inflation Pressures .................602
▫ Tire Pressures For High Speed Operation . . . .604
▫ Radial Ply Tires ..................... .604▫
Tire Types .......................... .605
▫ Run Flat Tires — If Equipped .............607
▫ Spare Tires — If Equipped ...............607
▫ Tire Spinning ....................... .610
▫ Tread Wear Indicators ..................610
▫ Life Of Tire .........................611
▫ Replacement Tires .....................611
 SUPPLEMENTAL TIRE PRESSURE INFORMATION
— IF EQUIPPED ...................... .613
 TIRE CHAINS (TRACTION DEVICES) .......613
 TIRE ROTATION RECOMMENDATIONS .....616
▫ Directional Tires — If Equipped ...........617
▫ Dual Rear Wheels — If Equipped ..........617
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STARTING AND OPERATING 439

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 pro-
hibit studded tires; therefore, local laws should be
checked before using these tire types.
Run Flat Tires — If Equipped
Run Flat tires allow you the capability to drive 50 miles
(80 km) at 50 mph (80 km/h) after a rapid loss of inflation
pressure. This rapid loss of inflation is referred to as the
Run Flat mode. A Run Flat mode occurs when the tire
inflation pressure is of/or below 14 psi (96 kPa). Once a
Run Flat tire reaches the run flat mode it has limited
driving capabilities and needs to be replaced immedi-
ately. A Run Flat tire is not repairable.
It is not recommended driving a vehicle loaded at full
capacity or to tow a trailer while a tire is in the run flat
mode.See the tire pressure monitoring section for more infor-
mation.
Spare Tires — If Equipped
NOTE:
For vehicles equipped with Tire Service Kit
instead of a spare tire, please refer to “Tire Service Kit” in
“What To Do In Emergencies” for further information.
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.
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
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STARTING AND OPERATING 607

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 TireSince this tire has limited tread life, the original equip-
ment 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 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.
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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 asyour original equipment tire, replace (or repair) the
original equipment tire and reinstall on the vehicle at the
first opportunity.
WARNING!
Limited-use spares are for emergency use only. In-
stallation of this limited-use spare tire affects vehicle
handling. With this tire, do not drive more than the
speed listed on the limit-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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STARTING AND OPERATING 609

NOTE:If your vehicle is equipped with a Tire Pressure
Information System (TPIS):
• The Tire Pressure Information System (TPIS) uses
unique sensors in the inner rear wheels to help identify
them from the outer rear wheels, because of this, the
inner and outer wheel locations can’t be switched.
• After a tire rotation is completed, as shown below, the
system can auto learn the locations of each sensor ID.
Auto learning/localization occurs when the vehicle
ignition status is changed from Off to On and speeds of
greater than 5 mph (8km/h) are obtained and remain
over 5 mph (8km/h) for at about a 15 minute period.
You may need to drive for 20 minutes to account
slower speeds and stops.
• If the tires are rotated incorrectly, The Auto localization
of the TPIS sensors will fail to locate correctly resulting
in incorrect locations for the pressure values displayed
in the Instrument Cluster.CAUTION!
3500 Dual Rear Tires may only have one approved
direction of rotation. This is to accommodate the
asymmetrical design (tread pattern) of the On/Off-
Road tire and the use of Outline White Letter (OWL)
tires.
• 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 re-
mounted 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.
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