brake ACURA NSX 2021 Repair Manual

391
uuMaintenance Under the Hood and Hatch uOpening the Hatch
Maintenance
Opening the Hatch
1. Park the vehicle on a level surface, and set
the parking brake.
2. Press the hatch release button on the
driver’s door.
3. Lift the hatch up most of the way.
u The hydraulic supports will lift it up the
rest of the way and hold it up.
When closing, press down firmly with your
hands.1 Opening the Hatch
When closing the hatch, check that the hatch is
securely latched.
The hatch can be opened by pressing the release
button on the hatch.
2 Using the Hatch Release Button P. 123
Hatch Release
Button
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392
uuMaintenance Under the Hood and Hatch uOpening the Hood
Maintenance
Opening the Hood
1. Park the vehicle on a level surface, and set
the parking brake.
2. Pull the hood release handle under the
driver’s side lower co rner of the dashboard.
u The hood will pop up slightly.
3. Pull up the hood latch lever (located under
the front edge of the hood to the center)
and raise the hood. On ce you have raised
the hood slightly, you can release the lever.
4. Lift the hood up most of the way.
u The hydraulic support will lift it up the
rest of the way and hold it up.
When closing, lower it to approximately 12
inches (30 cm), then pr ess down firmly with
your hands, and make su re both right and left
latches are firmly locked in place.1 Opening the Hood
NOTICE
Do not open the hood when the wiper arms are
raised. The hood will strike the wipers, resulting in
possible damage to the hood and/or the wipers.
When closing the hood, check that both right and
left latches are securely latched.
If the hood latch lever moves stiffly, or if you can
open the hood without lifti ng the lever, the latch
mechanism should be cl eaned and lubricatedM
Pull
Hood Release Handle
Lever
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404
uuMaintenance Under the Hood and Hatch uBrake Fluid
Maintenance
Brake Fluid
The fluid level should be between the MIN
and MAX marks on the side of the reserve
tank.
Refilling Window Washer Fluid
If the washer fluid is low, a message appears on the dr iver information interface.
Pour the washer fluid carefully. Do not overflow the reservoir.
Specified fluid: Acura Heavy Duty Brake Fluid DOT 4
■Checking the Brake Fluid
1Brake Fluid
NOTICE
Brake fluid marked DOT 5 is not compatible with your
vehicle’s braking system and can cause extensive
damage.
If the specified br ake fluid is not av ailable, you should
use only DOT 4 fluid from a sealed container as a
temporary replacement.
Using any non-Acura brake fl uid can cause corrosion
and decrease the longevity of the system. Have the
brake system flushed and re filled with Acura Heavy
Duty Brake Fluid DOT 4 as soon as possible.
If the brake fluid level is at or below the MIN mark,
have an authorized Acura NSX dealer inspect the
vehicle for leaks or worn brake pads as soon as
possible.
MINReserve Tank
MAX
1 Refilling Window Washer Fluid
NOTICE
Do not use engine antifreeze or a vinegar/water
solution in the windshield washer reservoir.
Antifreeze can damage y our vehicle’s paint. A
vinegar/water solution ca n damage the windshield
washer pump.
Use only commercially avai lable windshield washer
fluid.
Avoid prolonged use of hard water to prevent lime
scale build up.
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406
uuReplacing Light Bulbs uRear Turn Signal Lights
Maintenance
Rear Turn Signal Lights
Rear Turn Signal lights are LED type. Have an authorized Acur a NSX dealer inspect
and replace the light assembly.
Brake/Taillights
Brake/Taillights are LED type. Have an aut horized Acura NSX dealer inspect and
replace the light assembly.
Rear Side Marker Lights
Rear side marker lights are LED type. Have an authorized Acura NSX dealer inspect
and replace the light assembly.
Taillights
Taillights are LED type. Have an authorized Acura NSX dealer inspect and replace the
light assembly.
Back-Up Lights
Back-up lights are LED type. Have an au thorized Acura NSX dealer inspect and
replace the light assembly.
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407
uuReplacing Light Bulbs uRear License Plate Lights
Maintenance
Rear License Plate Lights
Rear license plate lights are LED type. Have an authorized Acura NSX dealer inspect
and replace the light assembly.
High-Mount Brake Light
High-mount brake light is LED type. Have an authorized Acura NSX dealer inspect
and replace the light assembly.
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419
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 wh en 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 winter tires.
*2:Tire chains to be used only on optional 305/30R20 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)
Rear: 295/30R20 (97V)
• Pirelli SottoZero 3
Front: 245/35R19 (93W)
Rear: 305/30R20 (103W)
• Auto-trac 232405*1
•K-Summit K-44*2
1Winter Tires
NOTICE
Traction devices that are the 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 equipp ed 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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Continued429
uuCleaning uExterior Care
Maintenance
The inside lenses of exterior lights (headlig hts, brake lights, etc.) may fog temporarily
if you have driven in the rain. Dew condensation also may build up inside the lenses
when there is a significant enough differe nce between the ambient and inside lens
temperatures (similar to vehicle windows fogging up in rainy conditions). These
conditions are natural processes, not structural design problems in the exterior
lights.
Lens design characteristics ma y result in moisture developing on the light lens frame
surfaces. This also is not a malfunction.
However, if you see large amounts of wa ter accumulation, or large water drops
building up inside the lenses, have your vehicle inspected by an authorized Acura
NSX dealer.
Keep brake pads and rotors free of substances that are either abrasive or oil based,
as these substances can reduce brake system performance.
NSX brake pads and disks have a high meta llic content. Under certain conditions
these pad and disks may rust to varying degrees, which may cause a clunk noise or
rubbing sound if parked when brakes become wet. This is normal for brakes with
high friction pads and it does not affect operation of the brakes.
To prevent the iron contained in the brake pa ds and rotors from rusting and sticking,
brakes should be dried before parking the ve hicle after driving on wet roads or after
washing the vehicle (especially before long-term storage). To dry the brake pads and
rotors, drive the vehicle at a low sp eed and apply the brakes several times.
By regularly applying str ong pressure to the brakes, you can reduce corrosion
buildup on the brake pads and rotors.
■Fogged Exterior Light Lenses
■Cast Iron Brakes*
1 Brake Maintenance
Brake maintenance require s specialized knowledge.
We recommend maintenance to be carried out by an
authorized Acura NSX dealer.
1 Maintenance of Brake Surfaces
Brakes can be dried by driv ing on a dry road for few
miles/kilometers, and a pplying the brake pedal
normally, based on traffic and road conditions. These
steps help maintain br ake system performance.
* Not available on all models
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uuCleaning uExterior Care
430
Maintenance
Keep the brake pads and rotors free of subs tances that are either abrasive or oil
based, as these substances can reduce braking power. After driving in the presence
of salt and/or sand, briefly wash the ro tor/pad surfaces with low-pressure water,
then allow the brake system to dry. To dry the brake pads and rotors, drive the
vehicle at a low speed and apply the brakes several times.
Refer to the color code label and the temperature notice label affixed to the
underside of the hood before painting the vehicle.
■Carbon Ceramic Brakes*
■Painting the Vehicle
1 Painting the Vehicle
U.S. models
Canadian models
* Not available on all models
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433Continued
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 pr epare it for storage. This helps reduce
possible deterioration of vehicle compone nts 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 carpetin g, 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 Ac ura NSX dealer.
2Checking the 12-Volt Battery P. 421
•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. 448
•Support the front wiper blade 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 (such as plastic sheeting) may trap moisture,
which can damage the paint.
• If possible, remove the vehicle from the garage or enclosed area, remove
covering, and periodically run the en gine 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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434
uuStorage uVehicle Storage
Maintenance
• To maintain the High Voltage battery, drive your vehicle for more than 30 minutes
at least once every three months.
If road conditions are not suitable or desi rable for driving, the following alternate
procedure can be used to maintain the vehicle's High Voltage battery if local idling
by-laws permit:
1. Remove the vehicle from the garage or enclosed area to prevent carbon
monoxide accumulation.
2 Carbon Monoxide Gas P. 70
2.Depress the brake pedal and press the ENGINE START/STOP button as you
normally would to start the vehicle.
3. Allow the vehicle to run for 30 minutes. Time spent at idle stop still counts as part
of this 30-minute run.
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