Acura RLX Hybrid (2017 year). Manual — part 26

408

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When Driving

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Vehicle Stability Assist (VSA®), aka Electronic Stability Control (ESC), System

Driving

Vehicle Stability Assist (VSA®), aka Electronic
Stability Control (ESC), System

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

1

Vehicle Stability Assist (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 pressures as specified.

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 a 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 Stability Control (ESC). The
system also includes a traction control function.

VSA® System
Indicator

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When Driving

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Vehicle Stability Assist (VSA®), aka Electronic Stability Control (ESC), System

Driving

This button is on the driver side control panel.
To partially turn the VSA features on and off,
press and hold it until you hear a beep.

The traction control stops fully functioning,
allowing the wheels to spin more freely at low
speed. The VSA® OFF indicator will also come
on.

To turn it on again, press the (VSA® OFF)
button until you hear a beep.

VSA® is turned on every time you turn the
power system on, even if you press the button
the last time you drove the vehicle.

■

VSA® OFF Button

1

Vehicle Stability Assist (VSA®), aka Electronic Stability Control
(ESC), System

With the

button pressed, your vehicle will have

normal braking and cornering ability, but VSA®
traction and stability enhancement becomes less
effective.

In certain unusual conditions when your vehicle gets
stuck in shallow mud or fresh snow, it may be easier
to free it with the

button pressed.

When the

button is pressed, the traction control

function becomes less effective. This allows for the
wheels to spin more freely at low speed. You should
only attempt to free your vehicle with the

button

pressed if you are not able to free it without.

Immediately after freeing your vehicle, be sure to
press the

button again. We do not recommend

driving your vehicle with the

button pressed

(indicator on).

You may hear a motor sound coming from the
engine compartment while system checks are being
performed immediately after turning the power
system on or while driving. This is normal.

VSA® OFF Indicator

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When Driving

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Agile 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.

1

Agile Handling Assist

The agile handling assist cannot 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 agile handling assist does not
activate.

You may hear a sound coming from the engine
compartment while the agile handling assist is
activated. This is normal.

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411

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When Driving

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SPORT HYBRID Super Handling-All Wheel Drive

TM

(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 surfaces, such as snow, sand, mud, and steep hills, better
than when driving 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 safely when you steer, accelerate, and apply

brakes.

• Leave a sufficient margin when braking on slippery surfaces.

1

SPORT 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. 494

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When Driving

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Blind Spot Information (BSI) System

Driving

Blind Spot Information (BSI) System

Is designed to detect vehicles in specified alert zones adjacent to your vehicle,
particularly in harder to see areas commonly known as “blind spots.”

When the system detects vehicles approaching from behind in adjacent lanes, the
appropriate indicator comes on for a few seconds, providing assistance when you
change lanes.

■

How the system works

1

Blind Spot Information (BSI) System

Important Safety Reminder
Like all assistance systems, BSI has limitations. Over
reliance on BSI may result in a collision.

The system is for your convenience only. Even if an
object is within the alert zone, the following
situations may occur.

•

The BSI alert indicator may not come on due to
obstruction (splashes, etc.) even without the Blind
Spot Not Available multi-information display
appearing.

•

The BSI alert indicator may come on even with the
message appearing.

The BSI alert indicator may not come on under the
following conditions:

•

A vehicle does not stay in the alert zone for more
than two seconds.

•

A vehicle is parked in a side lane.

•

The speed difference between your vehicle and the
vehicle you are passing is greater than 6 mph (10 km/h).

3

WARNING

Failure to visually confirm that it is safe to
change lanes before doing so may result in
a crash and serious injury or death.
Do not rely only on the blind spot
information system when changing lanes.

Always look in your mirrors, to either side
of your vehicle, and behind you for other
vehicles before changing lanes.

Alert zone range
A: Approx. 1.6 ft. (0.5 m)
B: Approx. 10 ft. (3 m)
C: Approx. 10 ft. (3 m)

Radar Sensors:
underneath the
rear bumper
corners

Alert Zone

A

B

C

Radar sensors detect a
vehicle in the alert zone
when your vehicle is moving
forward at 20 mph (32 km/h)
or faster.

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When Driving

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Blind Spot Information (BSI) System

Driving

■

When the system detects a vehicle

1

Blind Spot Information (BSI) System

•

An object not detected by the radar sensors
approaches or passes your vehicle.

•

A vehicle running in the adjacent lane is a
motorcycle or other small vehicle.

The system does not operate when in

(

R.

You can change the setting for BSI.

2 Customized Features P. 113, 283

BSI may be adversely affected when:

•

Objects (guard rails, poles, trees, etc,.) are
detected.

•

An object that does not reflect radio waves well,
such as a motorcycle, is in the alert zone.

•

Driving on a curved road.

•

A vehicle is moving from a far lane to the adjacent
lane.

•

The system picks up external electrical interference.

•

The rear bumper or the sensors have been improperly
repaired or the rear bumper has been deformed.

•

The orientation of the sensors has been changed.

•

In bad weather (Heavy rain, snow, and fog).

For proper BSI operation:

•

Always keep the rear bumper corner area clean.

•

Do not cover the rear bumper corner area with
labels or stickers of any kind.

•

Take your vehicle to a dealer if you need the rear
bumper corner area or the radar sensors to be repaired,
or the rear bumper corner area is strongly impacted.

Comes on when:

●

A vehicle enters the alert zone from behind
to overtake you with a speed difference of
no more than 31 mph (50 km/h) from your
vehicle.

●

You pass a vehicle with a speed difference
of no more than 12 mph (20 km/h).

BSI Alert Indicator: Located near the outside
rearview mirror on both sides.

Blinks and a beeper sounds when:
You move the turn signal lever in the direction
of the detected vehicle. The beeper sounds
three times.

Comes On

Blinks

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When Driving

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Tire Pressure Monitoring System (TPMS)

Driving

Tire Pressure Monitoring System (TPMS)

Monitors the tire pressure while you are
driving. If your vehicle’s tire pressure becomes
significantly low, the low tire pressure/TPMS
indicator comes on and a message appears on
the multi-information display.

1

Tire Pressure Monitoring System (TPMS)

Conditions such as low ambient temperature and
altitude change directly affect tire pressure and can
trigger the low tire pressure/TPMS indicator to come
on.

2 If the Low Tire Pressure/TPMS Indicator

Comes On or Blinks P. 540

Tire pressure checked and inflated in:

•

Warm weather can become under-inflated in
colder weather.

•

Cold weather can become over-inflated in warmer
weather.

The low tire pressure/TPMS indicator will not come
on as a result of over inflation.

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When Driving

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Tire Pressure Monitoring System (TPMS)

Driving

To select the tire pressure monitor, set the power
mode to ON, and roll the right selector wheel
until you see the tire pressure screen.

The pressure for each tire is displayed in PSI
(U.S.) or kPa (Canada).

Tire Pressures Low is displayed when a tire
has significantly low pressure. The specific tire
is displayed on the screen.

■

Tire Pressure Monitor

1

Tire Pressure Monitor

The pressure displayed on the multi-information
display can be slightly different from the actual
pressure as measured by a gauge. If there is a
significant difference between the two values, or if
the low tire pressure/TPMS indicator and the message
on the multi-information display do not go off after
you have inflated the tire to the specified pressure,
have the system checked by a dealer.

Tire Pressure Monitor Problem may appear if you
drive with the compact spare tire

*

, or there is a

problem with the TPMS.

ᵑᵔ

* Not available on all models

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When Driving

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Tire Pressure Monitoring System (TPMS) - Required Federal Explanation

Driving

Tire Pressure Monitoring System (TPMS) - Required
Federal Explanation

Each tire, including the spare (if provided), should be checked
monthly when cold and inflated to the inflation pressure
recommended by the vehicle manufacturer on the vehicle placard
or tire inflation pressure label.

(If your vehicle has tires of a different size than the size indicated
on the vehicle placard or tire inflation pressure label, you should
determine the proper tire inflation pressure for those tires.)

As an added safety feature, your vehicle has been equipped with
a tire pressure monitoring system (TPMS) that illuminates a low
tire pressure telltale

when one or more of your tires is significantly under-inflated.

Accordingly, when the low tire pressure telltale illuminates, you
should stop and check your tires as soon as possible, and inflate
them to the proper pressure.

Driving on a significantly under-inflated tire causes the tire to
overheat and can lead to tire failure. Under-inflation also reduces
fuel efficiency and tire tread life, and may affect the vehicle’s
handling and stopping ability.

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When Driving

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Tire Pressure Monitoring System (TPMS) - Required Federal Explanation

Driving

Please note that the TPMS is not a substitute for proper tire
maintenance, and it is the driver’s responsibility to maintain
correct tire pressure, even if under-inflation has not reached the
level to trigger illumination of the TPMS low tire pressure telltale.

Your vehicle has also been equipped with a TPMS malfunction
indicator to indicate when the system is not operating properly.
The TPMS malfunction indicator is combined with the low tire
pressure telltale. When the system detects a malfunction, the
telltale will flash for approximately one minute and then remain
continuously illuminated. This sequence will continue upon
subsequent vehicle start-ups as long as the malfunction exists.

When the malfunction indicator is illuminated, the system may
not be able to detect or signal low tire pressure as intended.

TPMS malfunctions may occur for a variety of reasons, including
the installation of replacement or alternate tires or wheels on the
vehicle that prevent the TPMS from functioning properly.

Always check the TPMS malfunction telltale after replacing one or
more tires or wheels on your vehicle to ensure that the
replacement or alternate tires and wheels allow the TPMS to
continue to function properly.

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When Driving

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High Voltage Battery

Driving

High Voltage Battery

The High Voltage battery gradually discharges when the vehicle is not in use. As a
result, if your vehicle is parked for an extended period of time, the battery level may
get low. Keeping your vehicle’s battery level low can shorten the battery life. To
maintain the battery, drive your vehicle for more than 30 minutes to recharge the
battery at least once every three months.
To help maintain the battery life, when parking under the direct sunlight during
summer, try find a shaded area.

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Continued

Driving

Braking

Brake System

Use the parking brake to keep the vehicle stationary when parked. You can
manually apply and release, or automatically release it.

■

Manual operations

Use the electric parking brake switch to apply or release the brake. Manually
releasing the parking brake using the switch helps your vehicle start slowly and
smoothly when facing down hill on steep hills.

■

To apply manually

Pull the electric parking brake switch up gently
and securely.

u

The electric parking brake indicator
comes on.

■

To release manually

1. Depress the brake pedal.
2. Press the electric parking brake switch.

u

The electric parking brake indicator goes
off.

■

Parking Brake

1

Brake System

When you depress the brake 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 rear wheel area when you
apply or release the parking brake, or set the power
mode to OFF. This is normal.

The brake pedal may slightly move due to the electric
parking brake system operation when you apply or
release the parking brake. This is normal.

You cannot apply or release the parking brake if the
battery goes dead.

2 Jump Starting P. 532

The parking brake is applied while the vehicle is
moving with the electric parking brake switch being
pulled.

Electric Parking
Brake Switch

Electric Parking
Brake Switch

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Braking

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Brake System

420

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.

You can release the parking brake automatically when:
• You are wearing the driver’s seat belt.
• The power system is on.
• The transmission is not in

(

P or

(

N.

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.

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 indicator

The parking brake may not be released automatically
while the following indicators are on:

•

Electric parking brake system indicator

•

VSA® system indicator

•

ABS indicator

•

Supplemental restraint system indicator

Accelerator Pedal

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Continued

421

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Braking

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Brake 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 anti-lock brake system (ABS) helps you retain steering
control when braking very hard.

2 Brake Assist System P. 425
2 Anti-lock Brake System (ABS) P. 424

■

Foot Brake

1

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 metallic 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 dealer. 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 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 regenerative braking by taking
your foot off the accelerator 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 confuse drivers behind you.

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Braking

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Brake System

422

Driving

Keeps the brake applied after releasing the brake pedal until the accelerator pedal is
pressed. You can use this system while the vehicle is temporarily stopped, such as
when you stop at a traffic light.

■

Automatic Brake Hold

1

Automatic Brake Hold

3

WARNING

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.

3

WARNING

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 Pedal

Brake Pedal

Automatic Brake
Hold Button

Goes
Off

On

On

On

On

On

U.S.

Canada

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Braking

u

Brake 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 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 the vehicle through the same
procedure as you normally do.

2 When Stopped P. 434

Whether the system is on, or the system is activated,
the automatic brake hold turns off once the power
system is off.

1

Turning on the system

Make sure to turn off the automatic brake hold
system before using an automated car wash.

You may hear an operating noise 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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