Acura ILX (2021 year). Manual in english — page 28

446

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When Driving

u

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. 595

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.

Low Tire

Pressure/TPMS

Indicator

447

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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 press the

(information) button 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.

* 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.

450

Driving

AcuraWatch

TM

AcuraWatch

TM

is a driver support system which employs the use of two distinctly

different kinds of sensors: a radar sensor located behind the emblem and a front
sensor camera mounted to the interior side of the windshield, behind the rearview
mirror.

AcuraWatch

TM

has following functions.

■

The functions which do not require button operations to activate

•

Collision Mitigation Braking System

TM

(CMBS

TM

)

2

P. 453

•

Road Departure Mitigation (RDM) System

2

P. 488

■

The functions which require button operations to activate

•

Adaptive Cruise Control (ACC)

2

P. 463

•

Lane Keeping Assist System (LKAS)

2

P. 478

451

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AcuraWatch

TM

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Continued

Driving

■

MAIN Button

Press to activate standby mode for ACC and
LKAS. Or press to cancel these systems.

■

LKAS Button

Press to activate or cancel the LKAS.

■

RES/ACCEL / DECEL/SET Button

Press

RES/ACCEL

to resume the ACC or

increase the vehicle speed.
Press

DECEL/SET

to set the ACC or decrease

the vehicle speed.

■

Interval Button

Press the (interval) button to change the
ACC following-interval.

■

CANCEL Button

Press to cancel ACC.

■

Operation Buttons for the ACC/LKAS

MAIN

Button

CANCEL

Button

Interval

Button

LKAS

Button

RES/ACCEL

/

DECEL/SET

Button

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AcuraWatch

TM

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Driving

You can see the current state of ACC and
LKAS.

■

Multi-Information Display Content

a

Indicates that ACC and LKAS are ready to
be activated.

b

Indicates that LKAS is activated and
whether or not traffic lane lines are
detected.

c

Indicates whether or not a vehicle is
detected ahead.

d

Shows the set vehicle speed.

e

Shows the set vehicle interval.

453

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AcuraWatch

TM

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Collision Mitigation Braking System

TM

(CMBS

TM

)

Continued

Driving

Collision Mitigation Braking System

TM

(CMBS

TM

)

Can assist you when there is a possibility of your vehicle colliding with a vehicle or a
pedestrian detected in front of yours. The CMBS

TM

is designed to alert you when the

potential for a collision is determined, as well as to reduce your vehicle speed to help
minimize collision severity when a collision is deemed unavoidable.

■

How the system works

1

Collision Mitigation Braking System

TM

(CMBS

TM

)

Important Safety Reminder

The CMBS

TM

is designed to reduce the severity of an

unavoidable collision. It does not prevent collisions
nor stop the vehicle automatically. It is still your
responsibility to operate the brake pedal and steering
wheel appropriately according to the driving
conditions.

The CMBS

TM

may not activate or may not detect a

vehicle in front of your vehicle under certain
conditions:

2

CMBS

TM

Conditions and Limitations

P. 457

You can read about handling information for the
camera equipped with this system.

2

Front Sensor Camera

P. 493

For directions on the proper handling of the radar
sensor, refer to the following page.

2

Radar Sensor

P. 495

When the CMBS

TM

activates, it may automatically

apply the brake. It will be canceled when your vehicle
stops or a potential collision is not determined.

The system starts monitoring the roadway ahead when your vehicle speed is about

3 mph (5 km/h) and there is a vehicle in front of you.

The radar sensor is

behind the emblem.

The CMBS

TM

activates when:

●

The speed difference between your vehicle and a vehicle or pedestrian
detected in front of you becomes about 3 mph (5 km/h) and over with a chance
of a collision.

●

Your vehicle speed is about 62 mph (100 km/h) or less and there is a chance of a
collision with an oncoming detected vehicle or a pedestrian in front of you.

The camera is

located behind the

rearview mirror.

When to use

uu

AcuraWatch

TM

u

Collision Mitigation Braking System

TM

(CMBS

TM

)

454

Driving

■

When the system activates

You can change the distance (

Long

/

Normal

/

Short

) between vehicles at which the

system’s earliest collision alert will come on through multi-information display or
information screen setting options.

2

List of customizable options

P. 102, 321

1

When the system activates

The camera in the CMBS

TM

is also designed to detect

pedestrians.
However, this pedestrian detection feature may not
activate or may not detect a pedestrian in front of
your vehicle under certain conditions.
Refer to the ones indicating the pedestrian detection
limitations from the list.

2

CMBS

TM

Conditions and Limitations

P. 457

The system provides visual and audible alerts of a possible collision, and stops

if the collision is avoided.

u

Take appropriate action to prevent a collision (apply the brakes, change
lanes, etc.)

Beep

Visual Alerts

Audible Alert

455

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AcuraWatch

TM

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Collision Mitigation Braking System

TM

(CMBS

TM

)

Continued

Driving

The system has three alert stages for a possible collision. However, depending on circumstances, the CMBS

TM

may not go through all of

the stages before initiating the last stage.

■

Collision Alert Stages

Distance between vehicles

CMBS

TM

The sensors detect a vehicle

Audible & Visual WARNINGS

Braking

Stage

one

There is a risk of a collision with the vehicle
ahead of you.

When in

Long

, visual and audible

alerts come on at a longer distance
from a vehicle ahead than in

Normal

setting, and in

Short

, at a

shorter distance than in

Normal

.

—

Stage

two

The risk of a collision has increased, time to
respond is reduced.

Visual and audible alerts.

Lightly

applied

Stage

three

The CMBS

TM

determines that a collision is

unavoidable.

Forcefully

applied

Your Vehicle

Vehicle
Ahead

Normal

Short

Long

Your
Vehicle

Vehicle
Ahead

Your
Vehicle

Vehicle
Ahead

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AcuraWatch

TM

u

Collision Mitigation Braking System

TM

(CMBS

TM

)

456

Driving

Press and hold the button until the beeper
sounds to switch the system on or off.

When the CMBS

TM

is off:

•

The CMBS

TM

indicator in the instrument

panel comes on.

•

A message on the multi-information display
reminds you that the system is off.

The CMBS

TM

is turned on every time you start

the engine, even if you turned it off the last
time you drove the vehicle.

■

CMBS

TM

On and Off

1

Collision Mitigation Braking System

TM

(CMBS

TM

)

The CMBS

TM

may automatically shut off, and the

CMBS

TM

indicator will come and stay on under certain

conditions:

2

CMBS

TM

Conditions and Limitations

P. 457

Continued

457

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AcuraWatch

TM

u

Collision Mitigation Braking System

TM

(CMBS

TM

)

Driving

The system may automatically shut off and the CMBS

TM

indicator will come on under

certain conditions. Some examples of these conditions are listed below. Other
conditions may reduce some of the CMBS

TM

functions.

2

Front Sensor Camera

P. 493

2

Radar Sensor

P. 495

■

Environmental conditions

•

Driving in bad weather (rain, fog, snow, etc.).

•

Sudden changes between light and dark, such as an entrance or exit of a tunnel.

•

There is little contrast between objects and the background.

•

Driving into low sunlight (e.g., at dawn or dusk).

•

Strong light is reflected onto the roadway.

•

Driving in the shadows of trees, buildings, etc.

•

Roadway objects or structures are misinterpreted as vehicles and pedestrians.

•

Reflections on the interior of the windshield.

•

Driving at night or in a dark condition such as a tunnel.

■

Roadway conditions

•

Driving on a snowy or wet roadway (obscured lane marking, vehicle tracks,
reflected lights, road spray, high contrast).

•

Driving on curvy, winding, or undulating roads.

•

The road is hilly or the vehicle is approaching the crest of a hill.

■

CMBS

TM

Conditions and Limitations

1

CMBS

TM

Conditions and Limitations

Have your vehicle checked by a dealer if you find any
unusual behavior of the system (e.g., the warning
message appears too frequently).

458

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AcuraWatch

TM

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Collision Mitigation Braking System

TM

(CMBS

TM

)

Driving

■

Vehicle conditions

•

Headlight lenses are dirty or the headlights are not properly adjusted.

•

The outside of the windshield is blocked by dirt, mud, leaves, wet snow, etc.

•

The inside of the windshield is fogged.

•

An abnormal tire or wheel condition (wrong sized, varied size or construction,
improperly inflated, compact spare tire

*

, etc.).

•

When tire chains are installed.

•

The vehicle is tilted due to a heavy load or suspension modifications.

•

The camera temperature gets too high.

•

Driving with the parking brake applied.

•

When the radar sensor behind the emblem gets dirty.

* Not available on all models

459

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AcuraWatch

TM

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Collision Mitigation Braking System

TM

(CMBS

TM

)

Continued

Driving

■

Detection limitations

•

A vehicle or pedestrian suddenly crosses in front of you.

•

The distance between your vehicle and the vehicle or pedestrian ahead of you is
too short.

•

A vehicle cuts in front of you at a slow speed, and it brakes suddenly.

•

When you accelerate rapidly and approach the vehicle or pedestrian ahead of you
at high speed.

•

The vehicle ahead of you is a motorcycle, bicycle, mobility scooter or other small
vehicle.

•

When there are animals in front of your vehicle.

•

When you drive on a curved, winding or undulating road that makes it difficult for
the sensor to properly detect a vehicle in front of you.

•

The speed difference between your vehicle and a vehicle or pedestrian in front of
you is significantly large.

•

An oncoming vehicle suddenly comes in front of you.

•

Another vehicle suddenly comes in front of you at an intersection, etc.

•

Your vehicle abruptly crosses over in front of an oncoming vehicle.

•

When driving through a narrow iron bridge.

•

When the lead vehicle suddenly slows down.

460

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AcuraWatch

TM

u

Collision Mitigation Braking System

TM

(CMBS

TM

)

Driving

Limitations applicable to pedestrian detection only

•

When there is a group of people in front of your vehicle walking together side by
side.

•

Surrounding conditions or belongings of the pedestrian alter the pedestrian’s
shape, preventing the system from recognizing that the person is a pedestrian.

•

When the pedestrian is shorter than about 3.3 feet (1 meter) or taller than about
6.6 feet (2 meter) in height.

•

When a pedestrian blends in with the background.

•

When a pedestrian is bent over or squatting, or when their hands are raised or
they are running.

•

When several pedestrians are walking ahead in a group.

•

When the camera cannot correctly identify that a pedestrian is present due to an
unusual shape (holding luggage, body position, size).

■

Automatic shutoff

The CMBS

TM

may automatically shut itself off and the CMBS

TM

indicator comes and

stays on when:

•

The temperature inside the system is high.

•

You drive off-road or on a mountain road, or curved and winding road for an
extended period.

•

An abnormal tire condition is detected (wrong tire size, flat tire, etc.).

•

The camera behind the rearview mirror, or the area around the camera, including
the windshield, gets dirty.

Once the conditions that caused the CMBS

TM

to shut off improve or are addressed

(e.g., cleaning), the system comes back on.

Continued

461

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AcuraWatch

TM

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Collision Mitigation Braking System

TM

(CMBS

TM

)

Driving

The CMBS

TM

may activate even when you are aware of a vehicle ahead of you, or

when there is no vehicle ahead. Some examples of this are:

■

When Passing

Your vehicle approaches another vehicle ahead of you and you change lanes to pass.

■

At an intersection

Your vehicle approaches or passes another vehicle that is making a left or right turn.

■

With Little Chance of a Collision

1

CMBS

TM

Conditions and Limitations

For the CMBS

TM

to work properly:

Always keep the radar sensor cover clean.

Never use chemical solvents or polishing powder for
cleaning the sensor cover. Clean it with water or a
mild detergent.

Do not put a sticker on the radar sensor cover or
replace the radar sensor cover.