2019 Acura RLX HYBRID brake

450
Driving
Braking
Brake System
Use the parking brake to keep the vehicle stationary when parked. When the
parking brake is applied, you can manually 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 parkin g brake switch up gently
and securely. u The electric parking brake indicator
comes on.
■Parking Brake1Brake System
When you depress the brak e pedal, you may hear a
whirling 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 parki ng brake. This is normal.
The brake pedal may slightly move due to the electric
parking brake system opera tion when you apply or
release the parking br ake. This is normal.
You cannot apply or release the parking brake if the
battery goes dead. 2 Jump Starting P. 562
If you pull up and hold the electric parking brake
switch while driving, the brakes on all four
wheels are applied by the VSA ® system until the
vehicle come to a stop. The electric parking
brake then applies, and the switch should be
released.
Electric Parking
Brake Switch
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Continued451
uuBraking uBrake System
Driving
■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.1 Parking Brake
In the following situations, the parking brake
automatically operates.
•When the vehicle stops more than 10 minutes
while ACC with LSF is activated.
•When the driver’s seat belt is unfastened while your
vehicle is stopped automatically by ACC with LSF.
•When the power system is turned off while ACC
with LSF is activated.
•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.
Electric Parking
Brake Switch
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uuBraking uBrake System
452
Driving
■To release automatically
Depressing the accelerator pedal releases the parking brake.
Use the accelerator pedal to release the 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.u The electric parking brake indicator goes
off.
The parking brake automatically releases as you depress the accelerator pedal when:
• You are wearing the driver’s seat belt.
• The power system is on.
• The transmission is not in
(P or (N.
1Parking Brake
If the parking brake cannot be released
automatically, release it manually.
When the vehicle is travel ing uphill, the accelerator
pedal may need to be pressed farther to
automatically release the electric parking brake.
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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Continued453
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. 457
2 Anti-lock Brake System (ABS) P. 456
■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 be replaced. Have the
vehicle checked by a deal er. If you hear only an
occasional squeak or squeal when you initially apply
the brake pedal, this may be normal and caused by
high frequency vibr ation of the brake pads against
the rotating brake disc.
Constantly using the brak e 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.
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uuBraking uBrake System
454
Driving
Keeps the brake applied after releasing the br ake pedal until the accelerator pedal is
pressed. You can use this system only while the vehicle is temporarily stopped, like
at traffic lights and in heavy traffic.
■Automatic Brake Hold1 Automatic 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
( D 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.
■Canceling the system
Depress the accelerator
pedal while the
transmission is in
( D.
The system is canceled
and the vehicle starts to
move.
●The automatic brake
hold indicator goes
off. The system
continues to be on.
Accelerator PedalBrake PedalAutomatic Brake
Hold Button
Goes
Off
U.S.
Canada
On
OnComes
On
Comes
On
Comes
On
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455
uuBraking uBrake System
Driving
■The system automatically cancels when:
• You depress the brake pedal and change to
(P or (R.
• You engage the parking brake.
■The system automatically cancels and the parking brake is applied when:
• 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 multi-information display.
■Turning off the automatic brake hold system
While the system is on, press the automatic
brake hold button again.
u The 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.
1 Automatic 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. 466
Whether the system is on, or the system is activated,
the automatic brake hold turns off once the power
system is off.
1 Turning off the automatic brake hold system
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.
Automatic Brake
Hold Button
Goes
Off
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456
uuBraking uAnti-lock Brake System (ABS)
Driving
Anti-lock Brake System (ABS)
Helps prevent the wheels from locking up, an d helps you retain steering control by
pumping the brakes rapidly, much faster than you.
The electronic brake distribution (EBD) system, which is part of the ABS, also
balances the front-to-rear braking distri bution according to vehicle loading.
You should never pump the brake pedal. Let the ABS work for you by always
keeping firm, steady pressure on the brake pe dal. This is sometimes referred to as
“stomp and steer.”
■ABS operation
The brake pedal may pulsate slightly when the ABS is working. Keep holding the
pedal firmly down. On dry pavement, you will need to press on the brake pedal very
hard before the ABS activates. However, you may feel the ABS activate immediately
if you are trying to stop on snow or ice.
ABS may activate when you depress the brake pedal when driving on:
• Wet or snow covered roads.
• Roads paved with stone.
• Roads with uneven surfaces, such as potholes, cracks, manholes, etc.
When the vehicle speed goes unde r 6 mph (10 km/h), the ABS stops.
■ABS1Anti-lock Brake System (ABS)
NOTICE
The ABS may not function correc tly if you use a tire of
the wrong size or type.
If the ABS indicator comes on while driving, there
may be a problem with the system.
While normal braking will not be affected, there is a
possibility that the ABS will not operating. Have your
vehicle checked by a dealer immediately.
The ABS is not designed for the purpose of reducing
the time or distance it takes for a vehicle to stop: It is
designed to limit brake lo ckup which can lead to
skidding and loss of steering control.
In the following cases, yo ur vehicle may need more
distance to stop than a vehicle without the ABS:
•You are driving on rough or uneven road surfaces,
such as gravel or snow.
•The tires are equipped with snow chains.
The following may be observed with the ABS system:
•Motor sounds coming from the engine
compartment when the brakes are applied, or
when system checks are being performed after the
engine has been started and while the vehicle
accelerates.
•Brake pedal and/or the ve hicle body vibration when
ABS activates.
These vibrations and sou nds are normal to ABS
systems and are no cause for concern.
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457
uuBraking uBrake Assist System
Driving
Brake Assist System
Designed to assist the driver by generati ng greater braking force when you depress
the brake pedal hard during emergency braking.
■Brake assist system operation
Press the brake pedal firmly for more powerful braking.
When brake assist operates, the pedal may wiggle slightly and an operating noise
may be heard. This is normal. Keep holding the brake pedal firmly down.
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