tire pressure DODGE DURANGO SRT 2018 Vehicle Warranty

TIRES
Tire Safety Information
Tire safety information will cover aspects of the following information:
Tire Markings, Tire Identification Numbers, Tire Terminology and Defi-
nitions, Tire Pressures, and Tire Loading.
Tire Markings
NOTE:
•P (Passenger) — Metric tire sizing is based on U.S. design standards.
P-Metric tires have the letter “P” molded into the sidewall preceding
the size designation. Example: P215/65R15 95H.
•European — Metric tire sizing is based on European design standards.
Tires designed to this standard have the tire size molded into the
sidewall beginning with the section width. The letterPis absent from
this tire size designation. Example: 215/65R15 96H.
Tire Markings
1 — U.S. DOT Safety Standards
Code (TIN)4 — Maximum Load
2 — Size Designation 5 — Maximum Pressure
3 — Service Description 6 — Treadwear, Traction and
Temperature Grades
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•LT (Light Truck) — Metric tire sizing is based on U.S. design standards.
The size designation for LT-Metric tires is the same as for P-Metric tires
except for the letters “LT” that are molded into the sidewall preceding
the size designation. Example: LT235/85R16.
•Temporary spare tires are designed for temporary emergency use only.
Temporary high pressure compact spare tires have the letter “T” or “S”
molded into the sidewall preceding the size designation. Example:
T145/80D18 103M.
•High flotation tire sizing is based on U.S. design standards and it
begins with the tire diameter molded into the sidewall. Example:
31x10.5 R15 LT.
Tire Sizing Chart
EXAMPLE:
Example Size Designation: P215/65R15XL 95H, 215/65R15 96H, LT235/85R16C,
T145/80D18 103M, 31x10.5 R15 LT
P= Passenger car tire size based on U.S. design standards, or
....blank....= Passenger car tire based on European design standards, or
LT= Light truck tire based on U.S. design standards, or
TorS= Temporary spare tire or
31= Overall diameter in inches (in)
215, 235, 145= Section width in millimeters (mm)
65, 85, 80= Aspect ratio in percent (%)
– Ratio of section height to section width of tire, or
10.5= Section width in inches (in)
R= Construction code
–"R"means radial construction, or
–"D"means diagonal or bias construction
15, 16, 18= Rim diameter in inches (in)
Service Description:
95= Load Index
– A numerical code associated with the maximum load a tire can carry
H= Speed Symbol
– A symbol indicating the range of speeds at which a tire can carry a load
corresponding to its load index under certain operating conditions
– The maximum speed corresponding to the speed symbol should only be
achieved under specified operating conditions (i.e., tire pressure, vehicle
loading, road conditions, and posted speed limits)TIRES
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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.
EXAMPLE:
DOT MA L9 ABCD 0301
DOT= Department of Transportation
– This symbol certifies that the tire is in compliance with the U.S. Department
of Transportation tire safety standards and is approved for highway use
MA= Code representing the tire manufacturing location (two digits)
L9= Code representing the tire size (two digits)
ABCD= Code used by the tire manufacturer (one to four digits)
03= Number representing the week in which the tire was manufactured (two digits)
– 03 means the 3rd week
01= Number representing the year in which the tire was manufactured (two digits)
– 01 means the year 2001
– Prior to July 2000, tire manufacturers were only required to have one number
to represent the year in which the tire was manufactured. Example: 031 could
represent the 3rd week of 1981 or 1991 TIRES
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Tire Terminology And Definitions
Term Definition
B-PillarThe vehicle B-Pillar is the structural member of
the body located behind the front door.
Cold Tire Inflation PressureCold 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 PressureThe 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 PressureVehicle manufacturer’s recommended cold tire
inflation pressure as shown on the tire placard.
Tire PlacardA label permanently attached to the vehicle
describing the vehicle’s loading capacity, the
original equipment tire sizes and the
recommended cold tire inflation pressures.TIRES
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Tire Loading And Tire Pressure
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.
Check the inflation pressure of each tire, including the spare tire (if
equipped), at least monthly and inflate to the recommended pressure for
your vehicle.
Example Tire Placard Location (Door)
Example Tire Placard Location (B-Pillar)
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Tire And Loading Information Placard
This placard tells you important information about the:
1. Number of people that can be carried in the vehicle.
2. Total weight your vehicle can carry.
3. Tire size designed for your vehicle.
4. Cold tire inflation pressures for the front, rear, and spare tires.
Loading
The vehicle maximum load on the tire must not exceed the load carrying
capacity of the tire on your vehicle. You will not exceed the tire’s load
carrying capacity if you adhere to the loading conditions, tire size, and cold
tire inflation pressures specified on the Tire and Loading Information
placard in “Vehicle Loading” in the “Starting And Operating” section of
your Owner ’s Manual.
NOTE:Under a maximum loaded vehicle condition, gross axle weight
ratings (GAWRs) for the front and rear axles must not be exceeded.
For further information on GAWRs, vehicle loading, and trailer towing, refer
to “Vehicle Loading” in the “Starting And Operating” section of your
Owner ’s Manual.
To determine the maximum loading conditions of your vehicle, locate the
statement “The combined weight of occupants and cargo should never
exceed XXX kg or XXX lbs” on the Tire and Loading Information placard.
Tire And Loading Information Placard
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Tires — General Information
Tire Pressure
Proper tire inflation pressure is essential to the safe and satisfactory
operation of your vehicle. Four primary areas are affected by improper
tire pressure:
•Safety and Vehicle Stability
•Economy
•Tread Wear
•Ride Comfort
Safety
WARNING!
•Improperly inflated tires are dangerous and can cause collisions.
•Underinflation increases tire flexing and can result in overheating
and tire failure.
•Overinflation reduces a tire’s ability to cushion shock. Objects on
the road and chuckholes can cause damage that result in tire
failure.
•Overinflated or underinflated tires can affect vehicle handling and
can fail suddenly, resulting in loss of vehicle control.
•Unequal tire pressures can cause steering problems. You could lose
control of your vehicle.
•Unequal tire pressures from one side of the vehicle to the other can
cause the vehicle to drift to the right or left.
•Always drive with each tire inflated to the recommended cold tire
inflation pressure.
Both under-inflation and over-inflation affect the stability of the vehicle
and can produce a feeling of sluggish response or over responsiveness in
the steering.
NOTE:
•Unequal tire pressures from side to side may cause erratic and
unpredictable steering response.
•Unequal tire pressure from side to side may cause the vehicle to drift
left or right.
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Fuel Economy
Underinflated tires will increase tire rolling resistance resulting in higher
fuel consumption.
Tread Wear
Improper cold tire inflation pressures can cause abnormal wear patterns
and reduced tread life, resulting in the need for earlier tire replacement.
Ride Comfort And Vehicle Stability
Proper tire inflation contributes to a comfortable ride. Over-inflation
produces a jarring and uncomfortable ride.
Tire Inflation Pressures
The proper cold tire inflation pressure is listed on the driver’s side
B-Pillar or rear edge of the driver’s side door.
At least once a month:
•Check and adjust tire pressure with a good quality pocket-type
pressure gauge. Do not make a visual judgement when determining
proper inflation. Tires may look properly inflated even when they are
under-inflated.
•Inspect tires for signs of tire wear or visible damage.
CAUTION!
After inspecting or adjusting the tire pressure, always reinstall the
valve stem cap. This will prevent moisture and dirt from entering the
valve stem, which could damage the valve stem.
Inflation pressures specified on the placard are always “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. The cold tire
inflation pressure must not exceed the maximum inflation pressure
molded into the tire sidewall.
Check tire pressures more often if subject to a wide range of outdoor
temperatures, as tire pressures vary with temperature changes.
Tire pressures change by approximately 1 psi (7 kPa) per 12°F (7°C) of air
temperature change. Keep this in mind when checking tire pressure
inside a garage, especially in the Winter.
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Example: If garage temperature = 68°F (20°C) and the outside tempera-
ture = 32°F (0°C) then the cold tire inflation pressure should be increased
by 3 psi (21 kPa), which equals 1 psi (7 kPa) for every 12°F (7°C) for this
outside temperature condition.
Tire pressure may increase from 2 to 6 psi (13 to 40 kPa) during operation.
DO NOT reduce this normal pressure build up or your tire pressure will
be too low.
Tire Pressures For High Speed Operation
The manufacturer advocates driving at safe speeds and within posted
speed limits. Where speed limits or conditions are such that the vehicle
can be driven at high speeds, maintaining correct tire inflation pressure is
very important. Increased tire pressure and reduced vehicle loading may
be required for high-speed vehicle operation. Refer to an authorized tire
dealer or original equipment vehicle dealer for recommended safe
operating speeds, loading and cold tire inflation pressures.
WARNING!
High speed driving with your vehicle under maximum load is
dangerous. The added strain on your tires could cause them to fail.
You could have a serious collision. Do not drive a vehicle loaded to
the maximum capacity at continuous speeds above 75 mph
(120 km/h).
Radial Ply Tires
WARNING!
Combining radial ply tires with other types of tires on your vehicle
will cause your vehicle to handle poorly. The instability could cause
a collision. Always use radial ply tires in sets of four. Never combine
them with other types of tires.
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Tire Repair
If your tire becomes damaged, it may be repaired if it meets the following
criteria:
•The tire has not been driven on when flat.
•The damage is only on the tread section of your tire (sidewall damage
is not repairable).
•The puncture is no greater than a ¼ of an inch (6 mm).
Consult an authorized tire dealer for tire repairs and additional informa-
tion.
Damaged Run Flat tires, or Run Flat tires that have experienced a loss of
pressure should be replaced immediately with another Run Flat tire of
identical size and service description (Load Index and Speed Symbol).
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 immediately. 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 information.
Tire Spinning
When stuck in mud, sand, snow, or ice conditions, do not spin your
vehicle’s wheels above 30 mph (48 km/h) or for longer than 30 seconds
continuously without stopping.
Refer to “Freeing A Stuck Vehicle” in “In Case Of Emergency” in your
Owner ’s Manual for further information.
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