tires Acura NSX 2018 Owner's Guide

411
uuChecking and Maintaining Tires uDOT Tire Quality Grading (U.S. Vehicles)
Maintenance
The traction grades, from highest to lowest, are AA, A, B, and C.
Those grades represent the tire’s ability to stop on wet pavement
as measured under controlled conditions on specified
government test surfaces of asph alt and concrete. A tire marked
C may have poor traction performance.
The temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation of heat and its
ability to dissipate heat when te sted under controlled conditions
on a specified indoor laboratory test wheel. Sustained high
temperature can cause the material of the tire to degenerate and
reduce tire life, and ex cessive temperature can lead to sudden tire
failure. The grade C corresponds to a level of performance which
all passenger car tires must meet under the Federal Motor Vehicle
Safety Standard No. 109. Grades B and A represent higher levels
of performance on the laboratory test wheel than the minimum
required by law.
■Traction
■Temperature
1 Traction
Warning: The traction grade
assigned to this tire is based on
straight-ahead braking traction tests,
and does not include acceleration,
cornering, hydroplaning, or peak
traction characteristics.
1Temperature
Warning: The temperature grade for
this tire is establishe d for a tire that is
properly inflated and not
overloaded. Excessive speed,
underinflation, or excessive loading,
either separately or in combination,
can cause heat buildup and possible
tire failure.
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412
uuChecking and Maintaining Tires uWear Indicators
Maintenance
Wear Indicators
The groove where the wear indicator is
located is 1/16 inch (1.6 mm) shallower than
elsewhere on the tire. If the tread has worn so
that the indicator is ex posed, replace the tire.
Worn out tires have poor traction on wet
roads.
Tire Service Life
The life of your tires is dependent on many factors, including driving habits, road
conditions, vehicle loading, inflation pre ssure, maintenance history, speed, and
environmental conditions (even when the tires are not in use).
In addition to regular in spections and inflation pres sure maintenance, it is
recommended that you have annual inspecti ons performed once the tires reach five
years old. All tires should be removed fro m service after 10 years from the date of
manufacture, regardless of their condition or state of wear.
1 Checking Tires
High speed driving
We recommend that you do not drive on public roads
faster than the posted sp eed limits and conditions
allow. If you intend to driv e at sustained high speeds
(over 168 mph or 270 km/h), such as at a track or
other closed course venue , adjust the cold tire
pressures as shown below to avoid excessive heat
build up and sudden tire failure.
Tire SizeFront:
245/35ZR19 (93Y)
Rear:
305/30ZR20 (103Y)
Pressure Front: 38 psi (260 kPa, 2.6 kgf/cm
2)
Rear:
38 psi (260 kPa, 2.6 kgf/cm
2)
Example of a Wear
Indicator mark
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413
uuChecking and Maintaining Tires uTire and Wheel Replacement
Maintenance
Tire and Wheel Replacement
Replace your tires with radials of the sa me size, load range, speed rating, and
maximum cold tire pressure rating (as shown on the tire’s sidewall). Using tires of a
different size or construction can cause ce rtain vehicle systems such as the ABS and
Vehicle Stability Assist ® (VSA ®) system to work incorrectly.
It is best to replace all four tires at the same time.
If you replace a wheel, only use TPMS spec ified wheels approved for your vehicle.
Make sure that the wheel’s specificati ons match those of the original wheels.1Tire and Wheel Replacement
3WARNING
Installing improper tires on your vehicle can
affect handling and stability. This can cause
a crash in which you can be seriously hurt or
killed.
Always use the size and type of tires
recommended in this owner’s manual.
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414
uuChecking and Maintaining Tires uTire Rotation
Maintenance
Tire Rotation
The front and rear tire sizes are diffe rent and they are directional tires.
Due to tire sizes and directional tires, the tires on this vehicle cannot be rotated.1 Tire Rotation
Directional tires should be mounted with the rotation
indication mark facing forward, as shown below.
FRONT
Direction Mark
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415
uuChecking and Maintaining Tires uWinter Tires
Maintenance
Winter Tires
If driving on snowy or frozen roads, mount all-season marked M+S tires, snow tires,
or tire chains; reduce speed; and maintain sufficient distance between vehicles when
driving.
Be particularly careful when operating the steering wheel or brakes to prevent skidding.
Use tire chains, snow tires, or all-season tires when necessary or according to the law.
When mounting, refer to the following points.
For winter tires:
• Mount the tires to all four wheels.
For tire chains:
• Install them on the rear tires only.
• Because your vehicle has limited tire clea rance, we strongly recommend using the
chains listed below:
*1:Tire chains to be used only on optional 295/30R20 (97V) winter tires.
*2:Tire chains to be used only on optional 305/30R20 (103W) XL winter tires.
• Follow the chain manufactur er’s instruction when installing. Mount them as
tightly as you can.
• Check that the chains do not touch the brake lines or suspension.
• Drive slowly.
Recommended Winter Tires:
●Michelin Alpin PA4
Front: 245/35R19 (93W) XL
Rear: 295/30R20 (97V)
●Pirelli SottoZero 3
Front: 245/35R19 (93W) XL
Rear: 305/30R20 (103W) XL
●Auto-trac 232405*1
●K-Summit K-44*2
1 Winter Tires
NOTICE
Traction devices that are th e wrong size or improperly
installed can damage your vehicle’s brake lines,
suspension, body, and wheels. Stop driving if they are
hitting any part of the vehicle.
When tire chains are mounted, follow the chain
manufacturer’s instructi ons regarding vehicle
operational limits.
If your vehicle is equipped with summer tires, be
aware that these tires are not designed for winter
driving conditions. For more information, contact an
authorized Acura NSX dealer.
3WARNING
Using the wrong chains, or not properly
installing chains, can damage the brake
lines and cause a crash in which you can be
seriously injured or killed.
Follow all instruction s in this owner’s
manual regarding the selection and use of
tire chains.
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416
uuChecking and Maintaining Tires uCold Weather Driving
Maintenance
Cold Weather Driving
Summer Only tires and Ultra High Performan ce (UHP) tires are very sensitive to
ambient temperatures and are designed to be used at temperatures above 45°F
(7°C). If the vehicle is operated with Summer Only tires or UHP tires at temperatures
below 45°F (7°C), the tires will provide decreasing amounts of grip and other
performance attributes. If the vehicle is operated with Summer Only tires or UHP
tires at temperatures below -4°F (-20°C), th e tire tread may lose their elasticity and
become brittle, resulting in permanent damage to the tread. A damaged tire may
fail during use. Therefore, if you operate the vehicle when ambient temperatures are
below 45°F (7°C), we recommend that you install other tires (e.g., mud+snow,
winter) that are designed to provide appropriate performance attributes under the
anticipated conditions.1 Cold Weather Driving
3WARNING
Use of Summer Only tires or Ultra High
Performance tires at temperatures below
45°F (7°C) may lead to a loss of
performance and control, which could
result in a crash, se rious injury or death.
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428
Maintenance
Storage
Vehicle Storage
If you need to park your vehicle for an extended period (more than one month),
there are several things you should do to prepare it for storage. This helps reduce
possible deterioration of vehicle components and overall condition, which allows
you to get the vehicle back on the road with minimal delay. These are:
• If possible, store your NSX in a garage or enclosed area.
• Fill the fuel tank completely.
• Change the engine oil and filter.
• Wash and dry the exterior completely.
• Clean the interior. Make sure the carpeti ng, floor mats, etc., are completely dry.
• Put the transmission in
(P.
Release the parking brake.
• Leave one window open slightly (if the vehicle is being stored indoors).
• To maintain the low-voltage 12-volt battery, connect it to an accessory battery
charger. For more information on how to maintain your 12-volt battery, consult
an authorized Acura NSX dealer.
2 Checking the 12-Volt Battery P. 417
•If the vehicle is to be stored for a longer period of time, it should be supported on
jack stands to raise the tires off the ground to prevent tire flat spotting.
2Handling of the Jack P. 444
•Support the front wiper blad e arms with a folded towel or rag so they do not
touch the windshield.
• Cover the vehicle with a “breathable” co ver, one made from a porous material
such as cotton. Nonporous materials (suc h as plastic sheeting) may trap moisture,
which can damage the paint.
• If possible, remove the vehicle from th e garage or enclosed area, remove
covering, and periodically run the engi ne until it reaches full operating
temperature (the cooling fa n cycles on and off twice).
Preferably, do this once a month.
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444
uuIf a Tire Goes Flat uHandling of the Jack
Handling the Unexpected
Handling of the Jack
Your vehicle has jacking points as shown.
When replacing your tires, consult an
authorized Acura NSX dealer.1 Handling of the Jack
Many types of jacks and jack stands, as well as
improper lifting procedures , may cause side sill and
underbody damage. Please consult an authorized
Acura NSX dealer about pr oper lifting equipment and
methods.Jacking Points
Jacking Points
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455
uuIndicator, Coming On/Blinking uIf the Low Tire Pressure/TPMS Indicator Comes On or Blinks
Handling the Unexpected
If the Low Tire Pressure/ TPMS Indicator Comes On or
Blinks
■Reasons for the indicator to come on or blink
Tire pressure is significantly low in on e or more of the tires. If there is a
problem with the TPMS, the indicato r blinks for about one minute, and
then stays on.
■What to do when th e indicator comes on
Drive carefully, avoid abrupt or sharp cornering, and hard braking.
Stop your vehicle in a safe place. Ch eck the tire pressure and adjust the
pressure to the specified level. The spec ified tire pressure is on a label on
the driver’s side doorjamb.
■What to do when the indicator blinks
Have the tire inspected by an author ized Acura NSX dealer as soon as
possible.
1 If the Low Tire Pressure/TPMS Indicator Comes On or Blinks
NOTICE
Driving on an extremely unde rinflated tire can cause
it to overheat. An overheated tire can fail. Always
inflate your tires to the prescribed level.
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476
uuWarranty Coverages u
Information
Replacement 12-Volt Batte ry Limited Warranty – provides prorated coverage
for a replacement battery purchased fro m an authorized Acura NSX dealer.
Replacement Muffler Life time Limited Warranty – provides coverage for as
long as the purchaser of the muffler owns the vehicle.
Restrictions and exclusions apply to a ll these warranties. Please read the Acura
warranty information booklet that came with your vehicle for precise information on
warranty coverages. Your vehi cle’s original tires are covered by their manufacturer.
Tire warranty information is in a separate booklet.
■Canadian Owners
Please refer to the warranty manual that came with your vehicle.
■EPA Contact Information
An owner may obtain further information concerning emission warranties or report
violations of the terms of the emission warranties by contacting:
U.S. Environmental Protection Agency
Office of Transportation and Air Quality
Compliance Division, Li ght-Duty Vehicle Group
Attn: Warranty Complaints
2000 Traverwood Drive
Ann Arbor, MI 48105
Email: [email protected]
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