Backup Sensors Owner’s Manual
Introduction
Thank you for purchasing this Acura accessory.
Please read this Owner’s Manual carefully before using the backup sensors, and keep this
manual in the glove box for future reference.
This product is designed to be used exclusively on a Acura RL. Acura is not responsible if the unit is
used for any other intended purpose.
This Owner’s Manual should be considered a permanent part of the vehicle. It should remain with
the vehicle at all times and stay with the vehicle when sold.
This accessory should be installed only by a skilled technician who has the proper tools,
equipment, and training to correctly and safely add equipment to your vehicle. Installation should
not be attempted by “do-it-yourselfers.”
This Owner’s Manual contains important information about the safe operation of the backup
sensors. We urge you to read this manual carefully, become familiar with the controls it describes,
and follow its recommendations to help make your driving trouble-free and enjoyable.
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.
3
Important Information
Before using the backup sensors, make sure you read and understand the operation and limitations
of the system as discussed throughout this manual.
• The backup sensors are designed to provide an audible sound when they detect large
stationary objects while the vehicle is moving in reverse at low speed. However, the system
may not detect all objects depending on their size, shape, and location.
• Even with the backup sensors, the driver is still responsible for making sure the path is
clear when driving in reverse.
4
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.
How the Backup Sensors Work
Backup Sensors
The sensors are ready for operation when the shift lever is moved to the reverse position.
The sensors operate by emitting ultrasonic waves. They calculate the distance between the rear bumper and
an obstacle by measuring the time the ultrasonic waves take to reach the sensor after being reflected by an
obstacle.
CORNER
SENSOR
4405010H
CENTER
SENSOR
CORNER
SENSOR
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.
5
How the Backup Sensors Work
The sensors are designed to give you an audible signal
when the rear bumper is approaching an obstacle.
Corner Sensors:
•
The audible signal has three sounds:
Corner Sensors Center Sensors
Within 2.0 feet Within 4.9 feet
(60 cm) (150 cm)
Within 1.5 feet Within 3.3 feet
(45 cm) (100 cm)
Within 1.0 foot Within 1.6 feet
(30 cm) (50 cm)
Fill Pattern
Sound
Slow intermittent
beeps
Quick intermittent
beeps
Continuous beep
Center Sensors:
3710050M
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.
6
How the Backup Sensors Work
The sensors detect the closest rear obstacle.
The sensors may not detect the rear bumper of tall
vehicles.
3710060M
3710070M
In this example, the corner
sensor detects the side wall.
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.
7
Limitations
The sensors may not work if the obstacle is an odd
shape or made of material that does not reflect
ultrasonic waves.
The sensors may not work if the ambient air
temperature is below -4°F (-20°C) or above 122°F
(50°C).
Examples:
POLE
RECTANGULAR
LUMBER
CARDBOARD
CARTON
BICYCLE
TIRE
4405020H
The audible signal may sound a warning even if
there is no obstacle behind the vehicle:
SMALL
TREE
•
Water frozen on the sensor
SOFT SNOW AND OTHER
ABSORBENT OBJECTS
3710120M
CURBSTONE
WIRE, ROPE,
AND NET FENCE
4405040H
4405030H
8
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.
Limitations
The audible signal may sound warning even if
there is no obstacle behind the vehicle:
•
When the vehicle is equipped with a high-
power radio and antenna
•
Sensors clogged with snow, dirt or mud
4405060H
4405050H
•
When detecting loud noises such as a vehicle
horn, a motorcycle’s engine, or air brakes
The sensors may sound continuously under the
following conditions:
•
When driving on rough surfaces or gravel
roads or in grass, or when stopped on a hill
3710170M
•
When driving in rain or melted snow
3710150M
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.
9
Operation
Before using the backup sensors, become familiar
with the types of sounds in relation to the distances
between the sensors and the obstacle by actually
backing your vehicle into a garage or parking space.
Also confirm the obstacle detecting range of each
backup sensor.
4. With one of the doors open, check that the
audible signal sounds by slowly bringing
the palm of your hand close to each sensor
as described:
For the corner sensors: From 2.0 feet
(60 cm)
1. Apply the parking brake.
For the center sensors: From 4.9 feet
(150 cm)
2. Turn the ignition switch to ON (II), but not
start the engine yet.
Confirm that the sound of the corner
sensors is different from that of the center
sensors.
ON
3. Move the shift lever to reverse.
Confirm the obstacle
detecting range of
each sensor.
4405070H
10
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.
Operation
5. Check that the intermittent warning beeps
become quicker as you bring the palm of
your hand closer to the sensor.
For the corner sensors: About 1.5 feet
(45 cm)
For the center sensors: About 3.3 feet
(100 cm)
6. Check that the intermittent warning beeps
change to a continuous beep as you bring
the palm of your hand closer to the sensor.
It may stop making noise or emit
intermittent beeps if you move your hand
closer too quickly.
For the corner sensors: About 1.0 foot
(30 cm)
For the center sensors: About 1.6 feet
(50 cm)
7. Turn the ignition switch to OFF (0).
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.
11
Daily Inspection
1. Turn the ignition switch to ON (II), and apply the
parking brake.
2. Depress the brake pedal, and move the shift
lever to the reverse position. Check that the
audible signal sounds for about one second.
•
The sensors are normal if the audible signal
sounds for about one second.
•
If the audible signal keeps sounding, this is
an indication that the sensors are frozen or
clogged with mud, dirt, etc.
If the sensors are clean but keep sounding,
there is an abnormality in the circuit. See
your Acura dealer when possible.
Be careful not to confuse the sound of the sensors
with those of other components or systems.
12
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.
Caring for the Backup Sensors
Wipe the sensors clean with a clean cloth, or flush
with low-pressure water if they are clogged with
mud and dirt.
Do not spray high-pressure water against the
sensors.
LOW-PRESSURE
WATER
HIGH-
PRESSURE
WATER
(Do not use.)
4405090H
4405080H
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.
13
Troubleshooting
Perform the following checks if the audible signal
does not sound when the vehicle is approaching an
obstacle.
Take your vehicle to your Acura dealer if you
encounter either of these problems:
•
The audible signal sounds continuously
when the shift lever is in the reverse
position, and the sensors are not frozen or
clogged with snow or mud.
Symptom
Remedy
• Clogged sensor
with snow or mud
• Wipe with a clean cloth or flush
with low-pressure water.
• Frozen sensor
• Melt with lukewarm water
•
The audible signal does not sound when the
shift lever is in the reverse position.
• Extended parking in
cold weather or
• The backup sensors may not
work if the outside air
under blazing sun
temperature is below -4°F
(-20°C) or above 122°F (50°C).
Ask your Acura dealer for advice if the trouble
persists.
14
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.
Troubleshooting
Troubleshooting With Beeps
When you turn the ignition switch to ON (II), and the
backup sensor signal sounds more then once, there
may be a problem with one of the sensors.
Corner Sensors
Two slow beeps: right sensor is faulty.
Three slow beeps: left sensor is faulty.
Four slow beeps: right and left sensors are faulty.
Center Sensors
Three fast beeps: one or both sensors are faulty.
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.
15
08V67-SJA-2000-81
© 2004 American Honda Motor Co., Inc - All Rights Reserved. PrintedinJapan
|