Acura RDX (2019 year). Manual - part 28

437

uu

When Driving

u

Super Handling-All Wheel Drive

TM

 (SH-AWD®)

*

Driving

Super Handling-All Wheel Drive

TM

 (SH-AWD®)

*

The system controls and transfers varying amounts of engine torque to each wheel 
in accordance with the driving conditions.

SH-AWD® helps to enhance driving stability, and lets you handle situations like 
slippery surfaces, such as snow, sand, mud, and steep hill, better than when driving 
with two wheel drive. However, the system does not help to enhance braking. Be 
precautious 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

Super Handling-All Wheel Drive

TM

 (SH-AWD®)

*

The 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. 560

Do not continuously spin the front tires of your 
vehicle. Continuously spinning the front tires can 
cause damage to the transmission and SH-AWD® 
unit.

If the Super Handling-All Wheel Drive

TM

 (SH-AWD®) 

indicator blinks while driving, it indicates the 
differential temperature is too high. If this happens, 
pull to the side of the road when it is safe, change the 
gear position to 

(

P, and idle the engine until the 

indicator goes out.

* Not available on all models

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uu

When Driving

u

Blind spot information System

*

Driving

Blind spot information 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 System

*

Important Safety Reminder
Like all assistance systems, blind spot information 
system has limitations. Over reliance on blind spot 
information system may result in a collision.

The blind spot information system 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).

•

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.

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.

●

The transmission is in 

(

D or 

(

S.

●

Your vehicle speed is 
between 20 mph (32 
km/h) and 100 mph 
(160 km/h)

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

* Not available on all models

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Continued

439

uu

When Driving

u

Blind spot information System

*

Driving

■

When the system detects a vehicle

Blind spot information System Alert Indicator: 
Located near the pillar on both sides.

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).

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

1

Blind spot information System

*

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

•

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

•

The blind spot information system alert indicator 
may come on even with the message appearing.

The system does not operate when in 

(

R.

You can turn off the audible alert, or all the blind spot 
information system alert using the audio/information 
screen.

2 Customized Features P. 332

Turn the system off when towing a trailer.
The system may not work properly for the following 
reasons:

•

The added mass tilts the vehicle and changes the 
radar coverage.

•

The trailer itself can be detected by the radar 
sensors, causing the blind spot information system 
alert indicators to come on.

Comes On

Blinks

Blind spot information 
System Alert Indicator

* Not available on all models

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When Driving

u

Blind spot information System

*

440

Driving

1

Blind spot information System

*

Blind spot information system 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 a proper blind spot information system 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.

* Not available on all models

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When Driving

u

Tire Pressure Monitoring System (TPMS) with Tire Fill Assist

Continued

Driving

Tire Pressure Monitoring System (TPMS) with Tire 
Fill Assist

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) with Tire Fill Assist

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. 613

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.

The TPMS audibly and visually informs you of 
changes in tire pressure of the individual tire that you 
are adjusting using audible and visual indications.

If a change in tire pressure has been significant, the 
system beeps and the hazard lights flash continuously 
for five seconds when the specified tire pressure is 
reached. Stop filling the tire.

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When Driving

u

Tire Pressure Monitoring System (TPMS) with Tire Fill Assist

442

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 System Problem. Check 
Tire Pressure. See Your Dealer. 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

Continued

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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445

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 the following functions.

■

Functions that do not need to be activated by the driver

• Road Departure Mitigation (RDM) System  

2 P. 479

• Collision Mitigation Braking System

TM

 (CMBS

TM

) 

2 P. 446

■

Functions that need to be activated by the driver

• Adaptive Cruise Control (ACC) with Low Speed Follow (LSF)  

2 P. 455

• Lane Keeping Assist System (LKAS) 

2 P. 471

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uu

AcuraWatch

TM

u

Collision Mitigation Braking System

TM

 (CMBS

TM

)

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 a 

potential 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 a collision 
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. 450

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

2 Front Sensor Camera P. 483

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

2 Radar Sensor P. 485

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 radar sensor 
is behind the 
emblem.

The camera is located 
behind the rearview 
mirror.

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.

When to use

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 the system determines 
there is a chance of a collision with:

- Vehicles detected in front of you that are stationary, oncoming, or traveling in your 
same direction.
- A pedestrian who is detected in front of you.

●

Your vehicle speed is above 62 mph (100 km/h), and the system determines there 
is a chance of a collision with a vehicle detected in front of you traveling in your 
same direction.

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Continued

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uu

AcuraWatch

TM

u

Collision Mitigation Braking System

TM

 (CMBS

TM

)

Driving

■

When the system activates

At system’s earliest collision alert stage, you can change the distance (Long/
Normal/Short) between vehicles at which alerts will come on through audio/
information screen setting options.

2 Customized Features P. 332

1

Collision Mitigation Braking System

TM

 (CMBS

TM

)

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. 450

The head-up warning uses a lens located at the front 
end of the dashboard.
Do not cover the lens or spill any liquid on it.

Models with Head-up display

Lens

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

Head-up Warning 
Lights

*

Visual Alerts

Audible Alert

* Not available on all models

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448

uu

AcuraWatch

TM

u

Collision Mitigation Braking System

TM

 (CMBS

TM

)

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 radar sensor detects 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

)

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. 450

When the CMBS

TM

 is activated, it will continue to 

operate even if the accelerator pedal is partially 
depressed. However, it will be canceled if the 
accelerator pedal is deeply depressed.

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uu

AcuraWatch

TM

u

Collision Mitigation Braking System

TM

 (CMBS

TM

)

450

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. 483

■

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

Collision Mitigation Braking System

TM

 (CMBS

TM

)

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

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uu

AcuraWatch

TM

u

Collision Mitigation Braking System

TM

 (CMBS

TM

)

Continued

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.

■

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.

* Not available on all models

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uu

AcuraWatch

TM

u

Collision Mitigation Braking System

TM

 (CMBS

TM

)

Driving

• 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 meters) 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 (amber) 

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.

Limitations applicable to pedestrian detection only

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