2021 ACURA NSX brakes

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uuBefore Driving uHigh-Performance Driving
Driving
High-performance driving requires special skills, knowledge and experience, as the
safety risks are greatly increased when the NSX is operated at its upper performance
abilities. As a responsible NSX driver, you should not drive above your skill limits or
training, even if the NSX’s performance le vels would otherwise allow you to do so.
If you intend to engage in high-perform ance driving, Acura strongly recommends
that:
• You first obtain appropriate, professional training
• Turn off any devices or systems that may distract you from the driving task
High-performance driving in general, and the use of TRACK mode and Launch
Control in particular, puts very high loads on the NSX and its components, and
results in greater wear and tear on the vehicl e. Because of these high loads, if your
NSX is not in top condition or if certain comp onents, such as the brakes or tires, have
undue wear, those components could experience a loss of performance, or fail,
when engaging in high-performance driv ing. Therefore, Acura highly recommends
that you undertake more proactive and fre quent maintenance than that required
under normal use and have your vehicle inspected at an authorized Acura NSX
dealer (and all necessary repairs or adju stments made) before you engage in any
high-performance driving. In addition to any required maintenance, there are
certain NSX specific items and protocols th at you should pay special attention to
before, during and after engaging in any high-performance driving. Ultimately, the
decision whether to engage in high-performance driving is yours, and depending on
your NSX’s condition and prior usage, the items and protocols listed below may or
may not be sufficient to ensure a safe driving experience.
BEFORE DRIVING
•With the vehicle parked on level gro und, properly bleed brake system after
replacing with Acura Heavy Duty Brake Fluid DOT 4 or equivalent
• Inspect brake pad thickness an d replace if 6.0 mm or less
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322
uuBefore Driving uHigh-Performance Driving
Driving
• Inspect all exhaust mounts for cracks or signs of wear
• Inspect tailpipe active exhaus t valves to ensure they are functioning correctly. You
can do this by cycling the Integrated Dynamics System mode switch between
SPORT and TRACK modes, while the engine is idling
WHILE DRIVING
• You may see a brake warning message in the Driver Information Interface (and
warning message chime) and/or expe rience increased brake pedal stroke.
If either occurs, immediately slow do wn and allow for increased stopping
distances. The message will disappear once the brakes have cooled and the
system has returned to normal operating condition
• After high-performance driving, it is critic al to allow your vehicle to properly cool
down. Do not immediately stop your vehicle. Instead, continue driving at reduced
speeds, allowing for increased braking di stances until your vehicle returns to
normal operating temperatures. Once you stop and safely park the NSX, open the
hatch to aid cooling. If the engine oi l temperature reaches the mark during
high-performance driving, have your NSX inspected by an authorized Acura NSX
dealer
H
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340
uuWhen Driving uIntegrated Dynamics System
Driving
Integrated Dynamics System
Constantly controls your ve hicle’s engine, transmission, High Voltage battery, EPS,
dampers, brakes, VSA ® and SH-AWD® according to the mode you select.
You can choose between four modes, QUIET mode, SPORT mode, SPORT+ mode
and TRACK mode by turning the switch on the center console.
Current mode is displayed on the Driver Information Interface, and each mode will
appear differently.1 Integrated Dynamics System
You can set the mode to be selected when you set
the power mode to ON.
2 Customized Features P. 248
The mode may not be able to be changed under
some driving conditions. If mode change is necessary,
reduce speed or cornering speed.
This message will also be shown if you try to change
modes when any vehicl e systems have failed.
SPORT mode SPORT+ mode
Hold
QUIET mode TRACK mode
Integrated Dynamics
System Mode Switch
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uuWhen Driving uVehicle Stability AssistTM (VSA ®), aka Electronic Stability Control (ESC), System
Driving
Vehicle Stability AssistTM (VSA ®), aka Electronic
Stability Control (ESC), System
VSA ® helps to stabilize the vehicle during cornering if the vehicle turns more or less
than what was intended. It also assists in maintaining traction on slippery surfaces.
It does so by regulating engine and motor output and selectively applying the
brakes.
When VSA® activates, you may notice that the
engine and motor do not respond to the
accelerator. You may also notice some noise
from the hydraulic brake sy stem. You will also
see the indicator blink.
■VSA ® Operation
1 Vehicle Stability AssistTM (VSA ®), aka Electronic Stability Control
(ESC), System
VSA ® may not function properly if tire type and size
are mixed. Make sure to use the same size and type
of tire, and the air pr essures as specified.
2 Tire and Wheel Replacement P. 417
When the VSA ® system indicator comes on and stays
on while driving, there may be a problem with the
system. While this may not interfere with normal
driving, have your vehicle checked by an authorized
Acura NSX dealer immediately.
VSA ® cannot enhance stability in all driving situations
and does not control the entire braking system. You
still need to drive and corner at speeds appropriate
for the conditions and always leave a sufficient
margin of safety.
The main function of the VSA ® system is generally
known as Electronic Stab ility Control (ESC). The
system also includes a traction control function.
VSA® System
Indicator
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354
uuWhen Driving uAgile Handling Assist
Driving
Agile Handling Assist
Lightly brakes each of the front and rear wheels, as needed, when you turn the
steering wheel, and helps support the vehi cle’s stability and performance during
cornering.1 Agile Handling Assist
The agile handling assist ca nnot enhance stability in
all driving situations. You still need to drive and
corner at speeds appropriate for the conditions and
always leave a sufficient margin of safety.
When the VSA ® system indicator comes on and stays
on while driving, the agil e handling assist does not
activate.
You may hear a sound coming from the front of the
car while the agile handling assi st is activated. This is
normal.
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355
uuWhen Driving uSPORT HYBRID Super Handling All-Wheel-DriveTM (SPORT HYBRID SH-AWD ®)
Driving
SPORT HYBRID Super Handling All-Wheel-DriveTM
(SPORT HYBRID SH-AWD ®)
The system controls and transfers varying amounts of motor and/or engine torque
to each wheel in accordance with the driving conditions.
SPORT HYBRID SH-AWD ® helps to enhance driving stability, and lets you handle
situations like slippery surf aces better than when drivin g with standard two wheel
drive. However, the system does not help to enhance braking. Be cautious about the
following:
• It is still your responsibility to drive sa fely when you steer, accelerate, and apply
brakes.
• Leave a sufficient margin when braking on slippery surfaces.
1SPORT HYBRID Super Handling All-Wheel-DriveTM (SPORT
HYBRID SH-AWD ®)
Do not drive through deep water.
The SPORT HYBRID SH-AWD ® system may not
function properly if tire type and size are mixed.
Make sure to use the same size and type of tire, and
the air pressures as specified. 2 Tire and Wheel Replacement P. 417
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361Continued
Driving
Braking
Brake System
Use the parking brake to keep the vehicle stationary when parked. When the
parking brake is applied, you can manu ally or automatically release it.
■To apply
The electric parking brake can be applied any
time the vehicle has battery, no matter which
power mode the vehicle is in.
Pull the electric parking brake switch up gently
and securely. u The electric parking brake indicator
comes on.
■To release
The power mode must be in the ON position
to release the electric parking brake.
1. Depress the brake pedal.
2. Press the electric parking brake switch.
u The electric parking brake indicator goes
off.
Manually releasing the parking brake using
the switch helps your vehicle start slowly and
smoothly when facing downhill on steep hills.
■Parking Brake1 Brake System
When you depress the brak e pedal, you may hear a
whirring sound from the engine compartment. This is
because the brake system is in operation, and it is
normal.
1 Parking Brake
You may hear the electric parking brake system
motor operating from the re ar wheel area when you
apply or release the parking brake.
You cannot apply or release the parking brake if the
12-volt battery goes dead. 2 If the 12-Volt Battery Is Dead P. 452
If you pull up and hold the electric parking brake
switch while driving, the brakes on all four
wheels are applied by the electric servo brake
system until the vehicle comes to a stop. The
electric parking brake then applies, and the
switch should be released .
Electric Parking
Brake Switch
Electric Parking
Brake Switch
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Continued363
uuBraking uBrake System
Driving
Your vehicle is equipped with disc brakes at all four wheels. The brake assist system
increases the stopping force when you depress the brake pedal hard in an
emergency situation. The an ti-lock brake system (ABS) helps you retain steering
control when brak ing very hard.
2Brake Assist System P. 367
2 Anti-lock Brake System (ABS) P. 366
■Brake squeal
To satisfy the performance under a wide range of driving conditions, a high-
performance braking system is equipped on your vehicle. You may hear the brake
squeal under certain conditions, such as vehicle speed, deceleration, humidity, and
so on. This is not a malfunction.
■Foot Brake1 Foot Brake
Check the brakes after driving through deep water,
or if there is a buildup of road surface water. If
necessary, dry the brakes by lightly depressing the
pedal several times.
If you hear a continuous me tallic friction sound when
applying the brakes, this is caused by the brake wear
indicator rubbing on the brake rotor and indicates
that the brake pads need to replaced. Have your
vehicle checked by an authorized Acura NSX dealer.
If you hear only an occasional squeak or squeal when
you initially apply the brake pe dal, this may be normal
and caused by high frequen cy vibration of the brake
pads against the rotating brake disc.
Constantly using the brake pedal while going down a
long hill builds up heat, which reduces the brake
effectiveness. Apply regene rative braking by taking
your foot off the accelera tor pedal and downshifting
to a lower gear.
Do not rest your foot on the brake pedal while
driving, as it will lightly apply the brakes and cause
them to lose effectiveness over time and reduce pad
life. It will also conf use drivers behind you.
Models with iron brake discs
Models with iron brake discs
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