brake ACURA NSX 2020 Service Manual

342
uuWhen DrivinguLaunch Control
Driving
4.While keeping the brake pedal firmly
depressed, depress the accelerator pedal all
the way, beyond th e point when the
transmission downshifts.
5. When Launch Mode Ready is displayed in
the driver information interface, release the
brake pedal at once.
6. To cancel launch mode, take your foot off
the accelerator pedal. Launch Mode
Cancelled is displayed in the driver
information interface.
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345
uuWhen DrivinguCruise Control
Driving
Increase or decrease the vehicle speed using the RES/+/SET/– switch on the steering
wheel. • Each time you press the switch up or dow n, the vehicle speed is increased or
decreased by about 1 mph (1.6 km/h).
• If you keep the switch pressed up or down, the vehicle speed increases or
decreases until you release it. This speed is then set.
To cancel cruise control, do any of the
following: •Press the CANCEL button.
• Press the CRUISE button.
• Depress the brake pedal.
The CRUISE CONTROL indicator goes off.
■To Adjust the Vehicle Speed1To Adjust the Vehicle Speed
You can set the vehicle speed pressing the RES/+/
SET/– switch down on the steering wheel when
adjusting the speed with the accelerator and brake pedals.
■To Cancel
To decrease speed
To increase speed
1To Cancel
Resuming the prior set speed:
After cruise control has be en canceled, you can still
resume the prior set speed by pressing the RES/+/
SET/– switch up while driving at a speed of at least
25 mph (40 km/h) or more.
You cannot set or resume in the following situations: • When vehicle speed is less than 25 mph (40 km/h)
• When the CRUISE button is turned off
At vehicle speeds of 22 m ph (35 km/h) or less, cruise
control is canceled automatically.
CANCEL
Button
CRUISE
Button
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346
uuWhen DrivinguVehicle Stability AssistTM
(VSA ®), aka Electronic Stability Control (ESC), System
Driving
Vehicle Stability Assist TM
(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 system . You will also see
the indicator blink.
■VSA ® Operation
1Vehicle Stability Assist TM
(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. 413
When the VSA ® system indicator comes on and stays
on while driving, there ma y 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 en tire 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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350
uuWhen DrivinguAgile 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 vehicle’s stability and performance during
cornering.
1Agile 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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351
uuWhen DrivinguSPORT HYBRID Super Handling All-Wheel-DriveTM
(SPORT HYBRID SH-AWD ®)
Driving
SPORT HYBRID Super Handling All-Wheel-Drive TM

(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 drivi ng 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-Drive TM
(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. 413
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357
Continued
Driving
Braking
Brake System
Use the parking brake to keep the vehicl
e 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.
uThe 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.
uThe 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 Brake1Brake 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.
1Parking 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 Jump Starting P. 448
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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uuBrakinguBrake System
358
Driving
■ To release automatically
Depressing the accelerator pedal releases the parking brake.
Use the accelerator pedal to release th e brake when you are starting the vehicle
facing uphill, or in a traffic jam.
Gently depress the accelerator pedal.
When on a hill, it may require more
accelerator input to release.
uThe electric parking brake indicator goes off.
You can release the parki ng brake automatically when:
• You are wearing the driver’s seat belt.
• The power system is on.
• The transmission is not in
(P or (N.
1Parking Brake
In the following situations, the parking brake
automatically operates.
• When the vehicle stops with the automatic brake
hold system activated for more than 10 minutes.
• When the driver’s seat belt is unfastened while
your vehicle is stopped and brake hold is applied.
• When the power system is turned off while brake hold is applied.
• When there is a problem with the Brake Hold
System.
If the parking brake cannot be released
automatically, release it manually.
The parking brake cannot be released automatically
while the following indicators are on:
• Malfunction indicator lamp
• Transmission system indicator
The parking brake may not be released automatically
while the following indicators are on:
• Electric parking brak e system indicator
• VSA ® system indicator
• ABS indicator
• Supplemental restraint system indicator
Accelerator Pedal
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Continued359
uuBrakinguBrake 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.
2 Brake Assist System P. 363
2 Anti-lock Brake System (ABS) P. 362
■ 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 Brake1Foot 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 occasion al squeak or squeal when
you initially apply the brake pedal, 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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uuBrakinguBrake System
360
Driving
Keeps the brake applied after releasing the brake pedal until the accelerator pedal is
pressed. Use this system only while the vehicl e is temporarily stopped, like at traffic
lights and in heavy traffic.
■Automatic Brake Hold1Automatic Brake Hold
3WARNING
Activating the automatic brake hold system
on steep hills or slippery roads may still
allow the vehicle to move if you remove
your foot from the brake pedal.
If a vehicle unexpectedly moves, it may
cause a crash resulting in serious injury or
death.
Never activate the automatic brake hold
system or rely on it to keep a vehicle from
moving when stopped on a steep hill or
slippery roads.
3WARNING
Using the automatic brake hold system to
park the vehicle may result in the vehicle
unexpectedly moving.
If a vehicle moves unexpectedly, it may
cause a crash, resulting in serious injury or
death.
Never leave the vehicle when braking is
temporarily kept by automatic brake hold
and always park the vehicle by putting the
transmission in
(P and applying the parking
brake.
■ Turning on the system
Fasten your seat belt
properly, then start the
power system. Press the
automatic brake hold
button.
● The automatic brake
hold system indicator
comes on. The system
is turned on. ■
Activating the system
Depress the brake pedal to come to a complete
stop. The transmission
must be in or
(N .
● The automatic brake hold indicator comes
on. Braking is kept for
up to 10 minutes.
● Release the brake pedal after the
automatic brake hold indicator comes on.D/M
■ Canceling the system
Depress the accelerator
pedal while the
transmission is in or
(R . The system is
canceled and the vehicle
starts to move. ● The automatic brake
hold indicator goes
off. The system
continues to be on.D/M
Accelerator PedalBrake PedalAutomatic Brake
Hold Button
Goes Off
On On
U.S.
Canada
Comes On
Comes On
Comes On
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361
uuBrakinguBrake System
Driving
■The system automatically cancels when:
• You depress the brake pedal and change to
(P or (R .
• You engage the parking brake.
Under the following conditions, the system automatically cancels, and the parking brake is applied: • Braking is kept for more than 10 minutes.
• The driver’s seat belt is unfastened.
• The power system is turned off.
• Brake Hold System Problem appears on the driver information interface.
■ Turning off the automa tic brake hold system
While the system is on, press the automatic
brake hold button again.
uThe automatic brake hold system
indicator goes off.
If you want to turn off automatic brake hold
while the system is in operation, press the
automatic brake hold button with the brake
pedal depressed.
1Automatic Brake Hold
While the system is activated, you can turn off the power system or park th e vehicle through the same
procedure as you normally do.
2 When Stopped P. 364
Whether the system is on, or the system is activated,
the automatic brake hold turns off once the power
system is off.
Make sure to turn off the automatic brake hold
system before using an automated car wash.
You may hear an operating noi se if the vehicle moves
while the automatic brake hold system is in
operation. The system generates sound while holding
the vehicle and it moves.
Automatic Brake
Hold Button
Goes
Off
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