Backup Sensors User’s Information Manual
Contents
A Few Words About Safety .................................................................................. 2
Introduction .......................................................................................................... 4
Important Information .......................................................................................... 5
How the Backup Sensors Work ........................................................................... 6
Limitations ............................................................................................................ 9
Operation ........................................................................................................... 11
Care of the Backup Sensors ............................................................................. 13
Troubleshooting.................................................................................................. 14
© 2008 American Honda Motor Co., Inc. - All Rights Reserved.
3
Introduction
Thank you for purchasing this Acura accessory.
Please read this User’s Information Manual carefully before using the backup sensors. Keep
this manual in the glove box for future reference.
This User’s Information 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 User’s Information 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.
4
© 2008 American Honda Motor Co., Inc. - All Rights Reserved.
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, all obstacles
may not always be sensed.
• Even with backup sensors, the driver should always look for obstacles near the vehicle to
make sure the path is clear when driving in reverse and it is safe to park.
WARNING
Severe injury or death can occur to persons or objects not detected by the sensors.
Never rely solely on the backup sensors and always look behind you before backing up.
© 2008 American Honda Motor Co., Inc. - All Rights Reserved.
5
How the Backup Sensors Work
Backup Sensors
The sensors are ready for operation when the shift lever is moved into the reverse position.
The sensors operate by emitting ultrasonic waves. The sensors calculate the distance to an obstacle by
measuring the time that ultrasonic waves take to reflect back from an obstacle.
CORNER
SENSOR
CENTER SENSORS
CORNER
SENSOR
5112010K
6
© 2008 American Honda Motor Co., Inc. - All Rights Reserved.
How the Backup Sensors Work
The sensor system is designed to alert you with a buzzer
beep when the rear bumper is nearing an obstacle.
Corner Sensors:
The buzzer beep has three sounds:
Corner Sensor Center Sensor
Fill Pattern
Buzzer
Distance
Distance
Slow intermittent
beeps
Within 2.0 ft
(60 cm)
Within 4.9 ft
(150 cm)
Quick intermittent
beeps
Within 1.3 ft
(40 cm)
Within 3.3 ft
(100 cm)
Within 0.8 ft
(25 cm)
Within 1.6 ft
(50 cm)
Continuous beep
7N02010T
Center Sensors:
7N02020T
© 2008 American Honda Motor Co., Inc. - All Rights Reserved.
7
How the Backup Sensors Work
The sensors detect the nearest rear obstacle.
7508020E
The corner sensor detects
the side wall.
The sensors may not detect the bumpers of a tall vehicle.
6531060H
8
© 2008 American Honda Motor Co., Inc. - All Rights Reserved.
Limitations
The system may not sense thin or low objects or
sonic-absorptive materials such as snow, cotton, or
sponge.
•
•
The sensors may not work near a garage
door with electrical sensor.
The system cannot sense objects directly
under the bumper.
Examples:
POLE
RECTANGULAR
LUMBER
The system may not function properly under
these conditions:
CARDBOARD
CARTON
BICYCLE
TIRE
•
After the vehicle has been sitting out in hot or
cold weather.
SMALL
TREE
SOFT SNOW
CURBSTONE
7508030E
WIRE, ROPE, OR
CHAIN LINK FENCE
5112030K
© 2008 American Honda Motor Co., Inc. - All Rights Reserved.
9
Limitations
•
The sensors are covered with snow, ice, mud,
etc.
•
When the system is affected by electrical
equipment or devices generating an
ultrasonic wave.
7522010B
5112070K
•
When the vehicle is on a rough road, on
grass, or climbing a hill.
•
When operating the vehicle in bad weather.
7508040E
10
© 2008 American Honda Motor Co., Inc. - All Rights Reserved.
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 parking
your vehicle in 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
buzzer beeps by slowly moving a board
close to each sensor as described:
Corner sensors:
From 2.0 ft (60 cm)
Center sensors:
From 4.9 ft (150 cm)
1. Apply the parking brake.
2. Turn the ignition switch to ON (II), but do
not start the engine yet.
ON
2.0 ft
(60 cm)
Confirm the obstacle
detecting range of
each sensor.
3. Move the shift lever to reverse.
Confirm that the buzzer beeps for about
one second when moving the shift lever to
reverse.
BOARD
This initial beep indicates the system is
working properly.
2.0 ft
(60 cm)
7203010T
© 2008 American Honda Motor Co., Inc. - All Rights Reserved.
11
Operation
5. Check that the intermittent warning beeps
become quicker as you move the board
closer to the sensor.
Corner sensors:
About 1.3 ft (40 cm)
Center sensors:
About 3.3 ft (100 cm)
6. Check that the intermittent warning beeps
change to a continuous beep as you move
the board closer to the sensor. It may stop
beeping if you move the board close too
quickly.
Corner sensors:
About 0.8 ft (25 cm)
Center sensors:
About 1.6 ft (50 cm)
7. Turn the ignition switch to OFF (0).
12
© 2008 American Honda Motor Co., Inc. - All Rights Reserved.
Care of the Backup Sensors
Wipe the sensors clean with a clean cloth. Flush
with low-pressure water if the sensors are clogged
with mud or dirt.
Do not spray high-pressure water against the
sensors.
LOW-PRESSURE
WATER
HIGH-
PRESSURE
WATER
(Do not use.)
5112090K
7508060E
© 2008 American Honda Motor Co., Inc. - All Rights Reserved.
13
Troubleshooting
Perform the following checks if the buzzer does not
beep when the vehicle is nearing an obstacle.
If either of the following problems persist, have the
system checked by your Acura dealer.
•
The buzzer beeps 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 buzzer does not beep when the shift
lever is initially shifted into reverse (R).
• 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).
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© 2008 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 buzzer beeps more than once, there
may be a problem with one of the sensors.
Corner Sensors
Two fast beeps: right sensor is faulty.
Three fast beeps: left sensor is faulty.
Four fast beeps: right and left sensors are faulty.
Center Sensors
Two slow beeps: right sensor is faulty.
Three slow beeps: left sensor is faulty.
Four slow beeps: right and left sensors are faulty.
© 2008 American Honda Motor Co., Inc. - All Rights Reserved.
15
BAM 39682 (0806)
08V67-TL2-2000-81
© 2008 American Honda Motor Co., Inc. - All Rights
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