2013 Ram C/V tire size

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.
CAUTION!
To avoid damage to your vehicle or tires, observe the
following precautions:
•Because of restricted traction device clearance be-
tween tires and other suspension components, it is
important that only traction devices in good condi-
tion are used. Broken devices can cause serious
damage. Stop the vehicle immediately if noise
occurs that could indicate device breakage. Remove
the damaged parts of the device before further use.
(Continued)
CAUTION! (Continued)
•Install device as tightly as possible and then re-
tighten after driving about ½ mile (0.8 km).
• Do not exceed 30 mph (48 km/h).
• Drive cautiously and avoid severe turns and large
bumps, especially with a loaded vehicle.
• Do not drive for prolonged period on dry pave-
ment.
• Observe the traction device manufacturer ’s instruc-
tions on the method of installation, operating
speed, and conditions for use. Always use the
suggested operating speed of the device manufac-
turer ’s if it is less than 30 mph (48 km/h).
• Do not use traction devices on a compact spare tire.
526 STARTING AND OPERATING

For example, your vehicle may have a recommended
cold (parked for more than three hours) tire placard
pressure of 35 psi (241 kPa). If the ambient temperature is
68°F (20°C) and the measured tire pressure is 30 psi (207
kPa), a temperature drop to 20°F (-7°C) will decrease the
tire pressure to approximately 26 psi (179 kPa). This tire
pressure is sufficiently low enough to turn on the “Tire
Pressure Monitoring Telltale Light.” Driving the vehicle
may cause the tire pressure to rise to approximately 30
psi (207 kPa), but the “Tire Pressure Monitoring Telltale
Light” will still be on. In this situation, the “Tire Pressure
Monitoring Telltale Light” will turn off only after the tires
have been inflated to the vehicle’s recommended cold tire
placard pressure value.CAUTION!
•The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures have
been established for the tire size equipped on your
vehicle. Undesirable system operation or sensor
damage may result when using replacement equip-
ment that is not of the same size, type, and/or style.
Aftermarket wheels can cause sensor damage. Do
not use aftermarket sealants or balance beads if
your vehicle is equipped with a TPMS, as damage
to the sensors may result.
• After inspecting or adjusting the tire pressure al-
ways reinstall the valve stem cap. This will prevent
moisture and dirt from entering the valve stem,
which could damage the TPMS sensor.
5
STARTING AND OPERATING 529

The label contains the following information:
•Name of manufacturer
• Month and year of manufacture
• Gross Vehicle Weight Rating (GVWR)
• Gross Axle Weight Rating (GAWR) front
• Gross Axle Weight Rating (GAWR) rear
• Vehicle Identification Number (VIN)
• Type of Vehicle
• Month Day and Hour of Manufacture (MDH)
The bar code allows a computer scanner to read the VIN.
Gross Vehicle Weight Rating (GVWR)
The GVWR is the total allowable weight of your vehicle.
This includes driver, passengers, and cargo. The total
load must be limited so that you do not exceed the
GVWR.
Gross Axle Weight Rating (GAWR)
The GAWR is the maximum capacity of the front and rear
axles. Distribute the load over the front and rear axles
evenly. Make sure that you do not exceed either front or
rear GAWR.
WARNING!
Because the front wheels steer the vehicle, it is
important that you do not exceed the maximum front
or rear GAWR. A dangerous driving condition can
result if either rating is exceeded. You could lose
control of the vehicle and have a collision.
Tire Size
The tire size on the Vehicle Certification Label represents
the actual tire size on your vehicle. Replacement tires
must be equal to the load capacity of this tire size.
5
STARTING AND OPERATING 549

Rim Size
This is the rim size that is appropriate for the tire size
listed.
Inflation Pressure
This is the cold tire inflation pressure for your vehicle for
all loading conditions up to full GAWR.
Curb Weight
The curb weight of a vehicle is defined as the total weight
of the vehicle with all fluids, including vehicle fuel, at full
capacity conditions, and with no occupants or cargo
loaded into the vehicle. The front and rear curb weight
values are determined by weighing your vehicle on a
commercial scale before any occupants or cargo are
added.
Overloading
The load carrying components (axle, springs, tires,
wheels, etc.) of your vehicle will provide satisfactory
service as long as you do not exceed the GVWR and the
front and rear GAWR.
The best way to figure out the total weight of your
vehicle is to weigh it when it is fully loaded and ready for
operation. Weigh it on a commercial scale to ensure that
it is not over the GVWR.
Figure out the weight on the front and rear of the vehicle
separately. It is important that you distribute the load
evenly over the front and rear axles.
Overloading can cause potential safety hazards and
shorten useful service life. Heavier axles or suspension
components do not necessarily increase the vehicle’s
GVWR.
550 STARTING AND OPERATING

9. Lower the jack to its fully-closed position.
WARNING!
A loose tire or jack thrown forward in a collision or
hard stop could endanger the occupants of the ve-
hicle. Always stow the jack parts and the spare tire in
the places provided. Have the deflated (flat) tire
repaired or replaced immediately.
10. Place the deflated (flat) tire and compact spare tire cover assembly in the rear cargo area. Do not stow
the deflated tire in the spare tire location. Have the
full-sized tire repaired or replaced, as soon as pos-
sible. 11. Stow the cable and wheel spacer before driving the
vehicle. Reassemble the winch handle extensions to
form a “T” and fit the winch T-handle over the drive
nut. Rotate the nut to the right until the winch
mechanism clicks at least three times.
NOTE: Refer to the “Spare Tire Tools” section for in-
structions on assembling the T-handle.
12. Stow the jack, jack handle and winch handle tools back in the stowage compartment.
13. Check the compact spare tire pressure as soon as possible. Correct the tire pressure, as required.
586 WHAT TO DO IN EMERGENCIES

CAUTION!
The compact spare tire/cover assembly must be used
when the compact spare tire is stored. Failure to use
this cover could drastically reduce the life of the
compact spare tire.
WARNING!
Verify that both retainer tabs of the wheel spacer
have been properly extended through the center of
the wheel and spare tire/cover assembly. Failure to
properly engage both retainer tabs could result in
loss of the spare tire and cover assembly, which will
cause vehicle damage and may cause loss of vehicle
control.4. Using the winch T-handle, rotate the drive nut to the
right until the compact spare tire/cover assembly is
drawn into place against the underside of the vehicle.
5. Continue to rotate the nut to the right until you hear the winch mechanism click three times. It cannot be
overtightened. Check under the vehicle to ensure the
compact spare tire/cover assembly is positioned cor-
rectly against the underside of the vehicle.CAUTION!
The winch mechanism is designed specifically to
stow a compact spare tire only. Do not attempt to use
the winch to stow the full size flat tire, or any other
full-size tire. Vehicle damage may result.
588 WHAT TO DO IN EMERGENCIES

Life of Tires.......................... .523
Load Capacity ........................ .510
Pressure Monitor System (TPMS) ............528
Pressure Warning Light ...................319
Quality Grading ....................... .675
Radial .............................. .517
Replacement .......................... .523
Rotation ............................. .527
Safety .............................. .502
Sizes ............................... .504
Snow Tires ........................... .519
Spare Tire ............................ .573
Spinning ............................ .522
Trailer Towing ........................ .561
Tread Wear Indicators ....................522
Tire Safety Information .....................502
Tongue Weight/Trailer Weight ................558
Torque Converter Clutch ....................481 Towing
............................... .551
24-Hour Towing Assistance ................159
Disabled Vehicle ....................... .599
Guide .............................. .557
Recreational .......................... .566
Weight .............................. .557
Towing Assistance ........................ .159
Traction ............................... .482
Traction Control ......................... .492
Traction Control Switch .....................492
Trailer Sway Control (TSC) ..................498
Trailer Towing .......................... .551
Cooling System Tips .....................565
Hitches ............................. .556
Minimum Requirements ..................559
Tips................................ .564
Trailer and Tongue Weight .................558
W
iring .............................. .563
Trailer Towing Guide ...................... .557
694 INDEX