Honda Automobiles Backup Sensors 4622040M User Manual

Backup Sensors Owner’s Manual  
Introduction  
Thank you for purchasing this Honda 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 Honda Ridgeline. Honda 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 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 backup sensor switch is turned ON, and 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  
CENTER  
SENSOR  
CORNER  
SENSOR  
4622010M  
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.  
5
How the Backup Sensors Work  
Corner Sensors:  
When the Tailgate is Closed:  
The sensors are designed to give you an audible signal  
when the rear bumper is approaching an obstacle.  
The audible signal has three sounds:  
Corner Sensors Center Sensors  
Fill Pattern  
Sound  
Slow intermittent  
beeps  
Within 2 feet  
(60 cm)  
Within 6 feet  
(180 cm)  
Quick intermittent  
beeps  
Within 1.5 feet  
(45 cm)  
Within 4 feet  
(120 cm)  
Within 1 foot  
(30 cm)  
Within 2 feet  
(60 cm)  
Continuous beep  
Center Sensors:  
4622021M  
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.  
6
How the Backup Sensors Work  
When the Tailgate is Opened:  
Corner Sensors:  
The sensors are designed to give you an audible signal  
when the rear bumper or the tailgate is approaching an  
obstacle.  
The audible signal has three sounds:  
Corner Sensors  
Fill Pattern  
Sound  
Within 2 feet  
(60 cm)  
Within 1.5 feet  
(45 cm)  
Within 1 foot  
(30 cm)  
Continuous beep  
Center Sensors:  
Center Sensors  
Distance from bumper  
(Distance from tailgate)  
Sound  
Fill Pattern  
Slow intermittent  
beeps  
Within 180 cm (6 feet)  
[150 cm / 5 feet]  
Quick intermittent  
beeps  
Within 130 cm (4.3 feet)  
[100 cm / 3.3 feet]  
Within 80 cm (2.6 feet)  
[50 cm / 1.6 feet]  
Continuous beep  
4623071M  
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.  
7
How the Backup Sensors Work  
The sensors detect the closest rear obstacle.  
When towing a trailer, the audible signal may keep  
sounding if the shift lever is moved to the reverse  
position. When this occurs, turn the backup sensor  
switch OFF.  
4622030M  
In this example, the corner  
sensor detects the side wall.  
4622050M  
The sensors may not detect the rear bumper of tall  
vehicles.  
4622040M  
8
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.  
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  
4622070M  
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  
CURBSTONE  
WIRE, ROPE,  
AND NET FENCE  
4622060M  
4622080M  
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.  
9
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  
4622110M  
4622090M  
When detecting loud noises such as a vehicle  
horn, a motorcycles 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  
4622120M  
When driving in rain or melted snow  
4622100M  
10  
© 2004 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 actually  
backing your vehicle into a garage or parking space.  
Also confirm the obstacle detecting range of each  
backup sensor.  
3. Turn the backup sensor switch ON. The  
switch is located on the drivers dashboard  
lower cover.  
1. Apply the parking brake.  
2. Turn the ignition switch to ON (II), but do  
not start the engine yet.  
ON  
ON  
4622130M  
DRIVER’S  
DASHBOARD  
LOWER COVER  
4. Move the shift lever to reverse.  
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.  
11  
Operation  
5. With one of the doors open, check that the  
6. Check that the intermittent warning beeps  
become quicker as you bring the palm of  
your hand closer to the sensor.  
audible signal sounds by slowly bringing  
the palm of your hand close to each sensor  
as described:  
For the corner sensors:  
About 1.5 feet (45 cm)  
For the corner sensors:  
From 2 feet (60 cm)  
For the center sensors:  
About 4 feet (120 cm)  
For the center sensors:  
From 6 feet (180 cm)  
7. 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  
Confirm that the sound of the corner  
sensors is different from that of the center  
sensors.  
intermittent beeps if you move your hand  
closer too quickly.  
For the corner sensors:  
About 1 foot (30 cm)  
For the center sensors:  
About 2 feet (60 cm)  
8. Turn the ignition switch to OFF (0).  
Confirm the obstacle  
detecting range of  
each sensor.  
4622140M  
12  
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.  
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 Honda  
dealer when possible.  
Be careful not to confuse the sound of the sensors  
with those of other components or systems.  
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.  
13  
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  
4622160M  
WATER  
(Do not use.)  
4622150M  
14  
© 2004 American Honda Motor Co., Inc. - All Rights Reserved.  
Trobleshooting  
Perform the following checks if the audible signal  
does not sound when the vehicle is approaching an  
obstacle.  
Take your vehicle to your Honda 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 and the  
backup sensor switch is turned ON.  
• 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).  
Troubleshooting With Beeps  
When you turn the ignition switch to ON (II), and the  
backup sensor signal sounds more than once, there  
may be a problem with one of the sensors.  
Ask your Honda dealer for advice if the trouble  
persists.  
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-SJC-1000-81  
© 2004 American Honda Motor Co., Inc - All Rights Reserved. PrintedinJapan

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