2015 Ram 2500 flat tire

•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.
4
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

Because four-wheel drive provides improved traction,
there is a tendency to exceed safe turning and stopping
speeds. Do not go faster than road conditions permit.
NOTE:Delayed shifts out of four-wheel drive may be
experienced due to uneven tire wear, low or uneven tire
pressures, excessive vehicle loading, or cold tempera-
tures.
WARNING!
You or others could be injured or killed if you leave
the vehicle unattended with the transfer case in the
NEUTRAL position without first fully engaging the
parking brake. The transfer case NEUTRAL position
disengages both the front and rear drive shafts from
the powertrain and will allow the vehicle to roll,
even if the transmission is in PARK. The parking
brake should always be applied when the driver is
not in the vehicle. For additional information on the appropriate use of each
transfer case mode position, see the information below:
2H
Rear-Wheel Drive High Range — This range is for
normal street and highway driving on dry hard surfaced
roads.
4H
Four-Wheel Drive High Range — This range locks the
front and rear driveshafts together forcing the front and
rear wheels to rotate at the same speed. Additional
traction for loose, slippery road surfaces only.
Neutral (N)
Neutral — This range disengages the front and rear
driveshafts from the powertrain. To be used for flat
towing behind another vehicle. Refer to “Recreational
Towing” in “Starting And Operating” for further infor-
mation.
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STARTING AND OPERATING 489

DRIVING ON SLIPPERY SURFACES
Acceleration
Rapid acceleration on snow covered, wet, or other slip-
pery surfaces may cause the driving wheels to pull
erratically to the right or left. This phenomenon occurs
when there is a difference in the surface traction under
the rear (driving) wheels.
WARNING!
Rapid acceleration on slippery surfaces is dangerous.
Unequal traction can cause sudden pulling of the rear
wheels. You could lose control of the vehicle and
possibly have a collision. Accelerate slowly and
carefully whenever there is likely to be poor traction
(ice, snow, wet mud, loose sand, etc.).
Traction
When driving on wet or slushy roads, it is possible for a
wedge of water to build up between the tire and road
surface. This is known as hydroplaning and may cause
partial or complete loss of vehicle control and stopping
ability. To reduce this possibility, the following precau-
tions should be observed:
•Slow down during rainstorms or when the roads are
slushy.
• Slow down if the road has standing water or puddles.
• Replace tires when tread wear indicators first become
visible.
• Keep tires properly inflated.
• Maintain sufficient distance between your vehicle and
the vehicle in front of you to avoid a collision in a
sudden stop.
546 STARTING AND OPERATING

EXAMPLE:
Load Identification:
Absence of the following load identification symbols on the sidewall of the tire indicates a Standard Load (SL)
tire:
•XL = Extra load (or reinforced) tire, or
•LL= Light load tire or
•C, D, E, F, G = Load range associated with the maximum load a tire can carry at a specified pressure
Maximum Load – Maximum load indicates the maximum load this tire is designed to carry
Maximum Pressure – Maximum pressure indicates the maximum permissible cold tire inflation pressure for this
tire
Tire Identification Number (TIN)
The TIN may be found on one or both sides of the tire,
however, the date code may only be on one side. Tires
with white sidewalls will have the full TIN, including the
date code, located on the white sidewall side of the tire. Look for the TIN on the outboard side of black sidewall
tires as mounted on the vehicle. If the TIN is not found on
the outboard side, then you will find it on the inboard
side of the tire.
594 STARTING AND OPERATING

Tire Terminology And Definitions
TermDefinition
B-Pillar The vehicle B-Pillar is the structural member of the body lo-
cated behind the front door.
Cold Tire Inflation Pressure Cold tire inflation pressure is defined as the tire pressure after
the vehicle has not been driven for at least three hours, or
driven less than 1 mile (1.6 km) after sitting for a minimum of
three hours. Inflation pressure is measured in units of PSI
(pounds per square inch) or kPa (kilopascals).
Maximum Inflation Pressure The maximum inflation pressure is the maximum permissible
cold tire inflation pressure for this tire. The maximum inflation
pressure is molded into the sidewall.
Recommended Cold Tire Inflation Pressure Vehicle manufacturer’s recommended cold tire inflation pres-
sure as shown on the tire placard.
Tire Placard A label permanently attached to the vehicle describing the ve-
hicle’s loading capacity, the original equipment tire sizes and
the recommended cold tire inflation pressures.
596 STARTING AND OPERATING

Tire Loading And Tire Pressure
Tire And Loading Information Placard Location
NOTE:The proper cold tire inflation pressure is listed on
the driver ’s side B-Pillar or the rear edge of the driver’s
side door.
Example Tire Placard Location (Door)
Example Tire Placard Location (B-Pillar)
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