2018 DODGE DURANGO SRT air condition

Anytime you see any damage to your tires or wheels, replace with the
spare at once and immediately visit any BFGoodrich® tire retailer.
IMPACT DAMAGE
A tire impacted by a road hazard (curb, pothole, debris) may be damaged
but not have visible signs of damage on its surface. A tire damaged by an
impact may sustain a sudden failure a day, week, or even months later.
You may not recall hitting an object that damaged or injured your tires.
Air loss, unusual tire wear, localized wear or vibrations can also be signs
of internal tire damage.
If you suspect any damage to your tire or wheel from an impact with a
curb, pothole, debris on the road or any other road hazard, or if you feel
or hear any unusual vibration, replace with a properly inflated spare at
once and immediately visit any qualified tire technician.
INSPECTION
When inspecting your tires, including the spare, check the air pressures.
If the pressure check indicates that one of your tires has lost pressure of
two pounds or more, look for signs of penetration, valve leakage or wheel
damage that may account for the air loss.
Always look for bulges, cracks, cuts, penetrations and abnormal tire
wear, particularly on the edges of the tire tread, which may be caused
by misalignment or underinflation. If any such
All tires will wear out faster when subjected to high speeds as well as
hard cornering, rapid starts, sudden stops, frequent driving on roads
which are in poor condition, and off road use. Roads with holes and rocks
or other objects can damage tires and cause misalignment of your vehicle.
When driving on such roads, drive carefully and slowly, and before
driving again at normal or highway speeds, examine your tires for any
damage, such as cuts, bulges, penetrations, unusual wear patterns, etc.
WEAR BARS
BFGoodrich® tires contain “Wear-Bars” in the grooves of the tire tread
which show up when only 2/32 nds of an inch (1.6 mm) of tread is
remaining. At this stage, your tires must be replaced. Tires worn beyond
this stage are extremely dangerous.
DO NOT OVERLOAD - DRIVING ON ANY OVERLOADED TIRE IS
DANGEROUS
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can explode during mounting. Also, mismatched tires and rims can result
in dangerous tire failure on the road. If a tire is mounted by error on the
wrong-sized rim, do not remount it on the proper rim - scrap it. It may
have been damaged internally (which is not externally visible) by having
been dangerously stretched and could fail on the highway.
Old valves may leak. When new tubeless tires are mounted, have new
valves of the correct type installed. Tubeless tires must only be
mounted on wheels designed for tubeless tires i.e., wheels which have
safety humps or ledges.
It is recommended that you have your tires and wheels balanced. Tires
and wheels which are not balanced may cause steering difficulties, a
bumpy ride, and irregular tire wear.
Be sure that all your valves have suitable valve caps. The valve cap is
the primary seal against air loss.
SERVICE LIFE FOR PASSENGER CAR AND LIGHT TRUCK
TIRES INCLUDING SPARE TIRES
The following recommendation applies to passenger car and light truck
tires. Tires are composed of various types of material and rubber
compounds, having performance properties essential to the proper
functioning of the tire itself. These component properties evolve over
time. For each tire, this evolution depends upon many factors such as
weather, storage conditions, and conditions of use (load, speed, inflation
pressure, maintenance etc.) to which the tire is subjected throughout its
life. This service-related evolution varies widely so that accurately
predicting the serviceable life of any specific tire in advance is not
possible.
That it is why, in addition to regular inspections and inflation pressure
maintenance by consumers, it is recommended to have passenger car and
light truck tires, including spare tires, inspected regularly by a qualified
tire specialist, such as a tire dealer, who will assess the tire’s suitability for
continued service. Tires which have been in use for 5 years or more
should continue to be inspected by a specialist at least annually.
Consumers are strongly encouraged to be aware not only of their tires’
visual condition and inflation pressure but also of any change in dynamic
performance such as increased air loss, noise or vibration, which could be
an indication that the tires need to be removed from service to prevent
tire failure.
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Additional notes about tire repairs:
•Not all punctured or damaged tires can be properly repaired; conse-
quently, they must be replaced. NEVER repair a tire with any of the
following conditions:
– Wear to the tire’s built-in tread wear indicators or to 2/32 inch
(1.6 mm) remaining tread depth in any area of the tread.
– With a puncture larger than 1/4 inch (6 mm).
– With a puncture or other damage outside the repairable tread area (as
shown in the graphic).
– With a pre-existing, improper repair.
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•Any tire repair done without removing the tire from the wheel is
improper. The tire must be demounted from the wheel and the interior
inspected for damage that may not be evident on the exterior of the
tire.
•Using only a plug/stem, or using only a patch, is not a safe or proper
repair. A patch must be applied to the interior of the tire and the
puncture hole must be filled with a suitable plug/stem filler to prevent
inflation pressure loss and contamination of the steel belts and other
plies.
•NEVER substitute a tube for a proper repair or to remedy an improper
repair.
•Tubes, like tires, should only be repaired by a qualified tire service
professional.
•Some vehicle manufacturers do not recommend using repaired tires.
Consult your vehicle owner ’s manual or contact the vehicle manufac-
turer before operating a repaired tire on your vehicle.
ASK how your tire will be repaired. ALWAYS insist on a proper tire
repair.
Emergency/Temporary Sealant or Filler Repairs:An emergency/
temporary sealant or filler injected into the tire, such as by aerosol can or
injection/squeeze-tube, is not a proper repair and voids the tire Limited
Warranty. A tire injected with such sealant/filler must be replaced by a
qualified tire service professional as soon as possible.
WARNING!
Tell the tire service professional if you have used an aerosol fixer to
inflate/seal the tire. Aerosol fixers could contain a highly volatile
gas. Always remove the valve core outdoors, away from sources of
excessive heat, flame, or sparks and completely deflate the tire
before removing it from the wheel.
Speed Rating:The tire’s speed rating is void if the tire is repaired,
retreaded, damaged, abused, or otherwise altered from its original
condition. Thereafter, it should be treated as a non-speed rated tire. See
“Tire Speed Ratings” in this manual.
Improper repair voids the tire Limited Warranty.See “Limited War-
ranty” in this manual.
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•High-speed driving should be left to trained professionals operating
under controlled conditions.
•No tire, regardless of its design or speed rating, has unlimited capacity
for speed, and a sudden tire failure can occur if its limits are exceeded.
See “Tire Speed Ratings,” the next section in this manual.
Refer to your vehicle owner ’s manual for any tire pressure recommen-
dations for high speed driving.
TIRE SPEED RATINGS
A tire bearing a letter “speed rating” designation indicates the tire’s
speed capability according to standardized laboratory tests. This speed
rating system is intended to permit comparison of the speed capabilities
of different tires. When replacing your tires, consult your vehicle owner ’s
manual and tire information placard for recommendations, if any,
concerning the use of speed rated tires.
•To avoid reducing the speed capability of the vehicle, replace a speed
rated tire only with another tire having at least the same speed rating.
It is the “top speed” of the “slowest” tire on the vehicle which limits
the vehicle’s top speed without tire failure.
•The tire’s speed rating is void if the tire is repaired, retreaded,
damaged, abused, or otherwise altered from its original condition.
Thereafter, it should be treated as a non-speed rated tire.
•Non-speed rated tires are usually for ordinary passenger car or light
truck service and not for high speed driving.
•For winter tires used in cold weather conditions, it is generally
acceptable to apply a tire with a lower speed rating than your original
tires; however, speed should be reduced accordingly. All winter tires
should be the same speed rating. Some vehicles have specific recom-
mendations regarding winter tire use; consult your vehicle owner ’s
manual and tire information placard. See “Winter Tires” in this
manual.
These speed ratings are based on standardized laboratory tests under
specific, controlled conditions. While these tests may relate to perfor-
mance on the road, real-world driving is rarely identical to any test
conditions. Your tire’s actual speed capability may be less than its rated
speed since it is affected by factors such as inflation pressure, load, tire
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RFT TIRES WITH RUN-FLAT TECHNOLOGY
If your vehicle is equipped with
Bridgestone or Firestone brand RFT
tires, this chapter presents specific
maintenance and safety issues asso-
ciated with these tires that are in addition to those covered elsewhere in
this manual.
What is RFT? Run-Flat Technology tires are extraordinary tires that
utilize specially designed components to temporarily support your
vehicle in the event of inflation pressure loss, such as from a puncture.
This gives you the ability to drive to a convenient and safe location to
change your tire (if equipped with a spare) or have it inspected for
possible repair or replacement.
Naturally, certain run-flat and low pressure operating limitations apply,
which varies according to the specific self-supporting tire design. Like all
tires, during normal operation, they must be properly inflated and
maintained. Regardless of the design or quality, no tire is indestructible.
RFT—How to Identify:Bridgestone and Firestone brand tires are
marked on the sidewalls, near the wheel, with the RFT logo (shown
above).
RFT INFLATION PRESSURE
Like other tires, RFT tires need proper inflation pressure maintenance for
safe operation and to achieve the maximum tire life and performance.
Check inflation pressures monthly and before long trips or carrying extra
weight. Use an accurate tire gauge and check pressures when the tires are
cold. Follow the vehicle manufacturer ’s recommendation for inflation
pressure settings as indicated on the vehicle tire information placard
and/or in the vehicle owner ’s manual. Do not forget the spare, if
applicable. See “Tire Inflation Pressure” in this manual.
TIRE PRESSURE MONITORING SYSTEM (TPMS)
A functioning tire pressure monitoring system (TPMS) must be used with
your RFT tires. Because these tires ride so well even without inflation
pressure, the TPMS may be necessary to alert you of an inflation pressure
loss condition. When alerted, follow the instructions in your vehicle
owner ’s manual and see “Run-Flat or Low Tire Pressure Operation,” the
following section in this manual.
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SPECIAL SERVICE AND REPAIR ISSUES
Run-Flat Certified Retailers
Because of the advanced technology and design of RFT tires and the
required tire pressure monitoring systems (TPMS), Bridgestone Firestone
Run-Flat Certified Retailers are specially trained to sell and service RFT
tires.
Run-Flat Certified Retailers have the necessary equipment and are
specially trained to properly mount and demount RFT tires and to handle
TPMS devices.Conventional mounting equipment may irreparably
damage RFT tires and an improper repair is unsafe and will void the
Limited Warranty.Accordingly, it is important to go to a Bridgestone
Firestone Run-Flat Certified Retailer for tire maintenance and replace-
ment.
Call toll-free 1-877-BFS-4RFT or, 877-237-4738 or visit
www.bridgestonetire.comto locate the nearest Bridgestone Firestone
Run-Flat Certified Retailer.
Inspection after Run-Flat or Low Pressure Operation
Following run-flat or low tire pressure operation, or in the event of any
other tire damage or unusual condition, it is very important to obtain a
proper and complete tire evaluation as soon as possible.
Rotation
Follow the vehicle manufacturer ’s recommendations, or rotate every
5,000 miles per the recommendations in this manual (see “Radial Tire
Rotation”). In some cases, TPMS devices require reprogramming with
each tire rotation.
RFT Tire Replacement
Do not replace or mix RFT tires with conventional tires, unless on an
emergency/temporary basis. Conventional tires do not have run-flat
capability and the handling characteristics of the vehicle with these tires
may be different. If a conventional tire is used on an emergency/
temporary basis, verify that its size, load capacity, inflation pressure, and
speed rating specifications meet the requirements of the vehicle. Replace
any conventional tire with the proper RFT tire as soon as possible.
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RFT Tire Damage and Repair
No tire, regardless of its design or quality is indestructible. RFT tires can
be ultimately rendered unusable due to a puncture or other road hazard
as well as from improper run-flat or low tire pressure operation. Some
punctures may be repaired under certain restrictions and prescribed
procedures.
When driven flat or with low pressure, factors affecting reparability
include vehicle speed, load, and maneuvering; the amount of inflation
pressure loss; and ambient temperature. In any situation, the extent and
location of direct damage from a puncturing object or other road hazard
are also critical factors.
RFT tires are not repairable in any of the following situations:
•
If the tire was operated with inflation pressure less than 15 psi (100 kPa).
•Abrasion or other damage is present on the exterior tread, sidewall or
bead areas.
•Abrasion, wrinkling, or separation is present on the tire interior.
•Any condition or damage is present that disqualifies repair of a
conventional tire.
Run-Flat Certified Retailers will fully inspect your tire, inside and out, to
determine if the tire can be repaired. Tire damage is not always visible
from the outside and the tire must be removed from the wheel for a
complete inspection. For more information, see the section “Tire Repairs”
in this manual.
NOTE:Some vehicle manufacturers do not recommend using repaired
tires. Consult your vehicle owner ’s manual or contact the vehicle
manufacturer before operating a repaired tire on your vehicle.
REFERENCE INFORMATION
TIRE SIDEWALL LABELING
A lot can be learned by reading the tire’s sidewall. The following figures
show typical information on the sidewall of passenger (Figure 3) and
light truck tires (Figure 4):
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