Page 415 of 492
413
uuChecking and Maintaining Tires uTire and Wheel Replacement
Maintenance
Tire and Wheel Replacement
Replace your tires with radials of the same 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
TM (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 specifications match those of the original wheels.
1 Tire 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.
22 ACURA NSX PMC-31T6N6500.book 413 ページ 2021年9月28日 火曜日 午後4時7分
Page 418 of 492
416
uuChecking and Maintaining Tires uCold Weather Driving
Maintenance
Cold Weather Driving
Summer Only tires are very sensitive to am bient temperatures and are designed to
be used at temperatures above 45°F (7°C). If the vehicle is operated with Summer
Only tires at temperatures below 45°F (7°C), the tires will provide decreasing
amounts of grip and other performance attributes. 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 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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Page 419 of 492

417
Maintenance
12-Volt Battery
Checking the 12-Volt Battery
Check the battery terminals for corrosion
monthly.
The battery is protected by a cover.
Remove the cover by pressing the tabs.
Slide the terminal cover on your vehicle’s 12-
volt battery positive + terminal.
The battery condition is monitored by the
sensor on the negative terminal. If there is a
problem with the sensor, the warning
message on the driver information interface
will let you know. Have your vehicle checked
by an authorized Acura NSX dealer.
If your vehicle’s battery is disconnected or goes dead:
• The audio system is disabled.
2 Reactivating the audio system P. 164
•The clock resets.
2 Clock P. 108
Charging the AGM Battery
AGM labeled batteries can be damaged if improperly charged. For more information
on how to charge an AGM battery, consult an authorized Acura NSX dealer.
1 12-Volt Battery
WARNING: Battery post, terminals,
and related accessories contain lead
and lead compounds.
Wash your hands after handling.
When you find corrosion, cl ean the battery terminals
by applying a baking powder and water solution.
Clean the terminals with a damp towel. Cloth/towel
dry the battery. Coat the terminals with grease to
help prevent future corrosion.
When replacing the battery, the replacement must be
of the same specifications.
Consult an authorized Acura NSX dealer for more
information.
3WARNING
The battery gives off explosive hydrogen
gas during normal operation.
A spark or flame can cause the battery to
explode with enough force to kill or
seriously hurt you.
When conducting any battery
maintenance, wear prot ective clothing and
a face shield, or have a skilled technician do
it.
Tab
Cover
Terminal
Cover
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418
Maintenance
Remote Transmitter Care
Replacing the Remote Battery
If the indicator does not come on when the button is pressed, replace the battery.1.Remove the built-in key.
2. Remove the upper half of the cover by
carefully prying on the edge with a coin.
u Wrap a coin with a cloth to prevent
scratching the keyle ss access remote.
u Remove carefully to avoid losing the
buttons.
3. Make sure to replace the battery with the
correct polarity.1 Replacing the Remote Battery
NOTICE
An improperly disposed of battery can damage the
environment. Always conf irm local regulations for
battery disposalM
Replacement batteries are commercially available or
at an authorized Acura NSX dealer.
3WARNING
CHEMICAL BURN HAZARD
The battery that powers the remote
transmitter can cause severe internal burns
and can even lead to death if swallowed.
Keep new and used batteries away from
children.
If you suspect that a child has swallowed
the battery, seek medical attention
immediately.
Battery type: CR2032
Battery
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428
Maintenance
Accessories and Modifications
Accessories
When installing accessories, check the following:
• Do not install accessories on the windshield. They can obstruct your view and
delay your reaction to driving conditions.
• Do not install any access ories over areas marked SRS AIRBAG, on the sides or
backs of the seats, on front or side pillars, or near the side windows.
Accessories installed in these areas may interfere with proper operation of the
vehicle’s airbags or may be propelled into you or another occupant if the airbags
deploy.
• Be sure electronic accessories do not over load electrical circuits or interfere with
proper operation of your vehicle.
2 Fuses P. 460
•Before installing any electronic accessory, have the installer contact an authorized
Acura NSX dealer for assistance. If possibl e, have an authorized Acura NSX dealer
inspect the final installation.
1 Accessories and Modifications
Acura Genuine accessori es are recommended to
ensure proper operati on on your vehicle.
3WARNING
Improper accessories or modifications can
affect your vehicle’s handling, stability, and
performance, and cause a crash in which
you can be seriously hurt or killed.
Follow all instruction s in this owner’s
manual regarding accessories and
modifications.
3WARNING
Use of improperly designed, engineered or
manufactured high-voltage battery
assemblies could cause a fire in your
vehicle.
A vehicle fire could result in a crash or
injury.
Only use a genuine Acura high-voltage
battery assembly, or it s equivalent, in your
vehicle.
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Page 435 of 492

433
Handling the Unexpected
This chapter explains how to handle unexpected troubles.
ToolsTypes of Tools .................................. 434
If a Tire Goes Flat Temporarily Repairi ng a Flat Tire....... 435
Handling of the Jack ......................... 446
Power System Won’t Start
Checking the Procedure ................... 447
If the Keyless Access Remote Battery is Weak ............................................. 448
Emergency Power System Off........... 449
If the 12-Volt Battery Is Dead .......... 450
Overheating
How to Handle Overheating ............. 452 Indicator, Coming On/Blinking
If the 12-Volt Battery Charging System Indicator Comes On ....................... 454
If the Malfunction Indicator Lamp Comes On or Blinks ................................... 454
If the Brake System Indicator (Red) Comes
On ................................................. 455
If the Electric Power Steering (EPS) System Indicator Comes On ....................... 455
If the Electric Parking Brake System Indicator Comes On ....................... 456
If the Low Tire Pressure/TPMS Indicator
Comes On or Blinks........................ 457 If the Transmission System Indicator Blinks
along with the Warning Message... 458
If the Check Engine Oil Level Warning Appears .............................................459
Fuses Fuse Locations ................................. 460
Inspecting and Changing Fuses ........ 464
Emergency Towing ........................... 465
If You Cannot Unlock the Fuel Fill Door.... 466
If You Cannot Open the Hatch............467
Refueling
Refueling from a Portable Fuel Container .... 468
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Page 437 of 492

435Continued
Handling the Unexpected
If a Tire Goes Flat
Temporarily Repairing a Flat Tire
If the tire has a large cut or is otherwise severely damaged, you will need to have the
vehicle towed. If the tire only has a sma ll puncture, from a small nail for instance,
you can use the temporary tire repair kit so that you can drive to the nearest service
station for a more permanent repair.
If a tire goes flat while driving, grasp the steering wheel firmly, and brake gradually
to reduce speed. Then, stop in a safe place.
1. Park the vehicle on a firm, level, and non-slippery surface. Apply the parking
brake.
2. Put the transmission into
(P.
3. Turn on the hazard warning lights an d set the power mode to VEHICLE OFF.
1Temporarily Repairing a Flat Tire
The kit should not be used in the following situations.
Instead, contact an authorized Acura NSX dealer or a
roadside assistant to have the vehicle towed.
•The tire sealant has expired.•More than one tire is punctured.•The puncture or cut is larger than 3/16 inch (4 mm).•The tire side wall is da maged or the puncture is
outside the contact area.
•Damage has been caused by driving with the tire
extremely under inflated.
•The tire bead is no longer seated.•The rim is damaged.
Do not remove a nail or screw that punctured the
tire. If you remove it from the tire, you may not be
able to repair the puncture using the kit.
NOTICE
Do not use a puncture-repairing agent other than the
one provided in the kit that came with your vehicle. If
a different agent is used, you may permanently
damage the tire pressure sensor.
When the puncture isYKit Use
Smaller than 3/16 inch
(4 mm)Yes
Larger than 3/16 inch (4 mm)No
Contact
Area
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Continued437
uuIf a Tire Goes Flat uTemporarily Repairing a Flat Tire
Handling the Unexpected
1. Remove the valve cap from the tire valve
stem.
2. Shake the sealant bottle.
3. Attach the sealant/air hose onto the tire
valve stem. Screw the sealant/air hose
until it is tightly connected to the valve
stem.
u Make sure the bottle remains upright to
ensure all the sealant flows into the tire.
4. Remove the bottle cap from the bottle
adapter.
5. Attach the air compre ssor hose onto the
bottle adapter. Screw the air compressor
hose until it is tightly connected to the
bottle adapter.
■Injecting Sealant and Air1 Injecting Sealant and Air
Keep the sealant bottle out of the reach of children.
Do not shake the bottle after the bottle cap removed.
If you shake the bottle after the cap is removed, it
may spill sealant.
In cold temperatures, the sealant may not flow easily.
In this situation, warm it up for five minutes before
using.
The sealant is latex based and can permanently stain
clothing and other materi als. Be careful during
handling and wipe up any spills immediately.
3WARNING
Tire sealant contains substances that are
harmful and can be fatal if swallowed.
If accidentally swallowed, do not induce
vomiting. Drink plenty of water and get
medical attention immediately.
For skin or eye contact, flush with cool
water and get medical attention if
necessary.
Tire Valve Stem
Valve Cap
Sealant/Air Hose Tire Valve Stem
Bottle Adapter
Air Compressor Hose
Bottle
Cap
22 ACURA NSX PMC-31T6N6500.book 437 ページ 2021年9月28日 火曜日 午後4時7分