Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your GEARZAAR Front and Rear 8 Parking Sensors Car Reverse Kit. This system is designed to enhance parking safety by detecting obstacles in front of and behind your vehicle and providing visual and audible alerts.
Package Contents
Please check the package carefully to ensure all items are present:
- 1x Main Control Box
- 1x LCD Display Unit
- 8x Parking Sensors (4 for front, 4 for rear)
- 1x Power Cable
- 1x Hole Saw Drill Bit (for sensor installation)
- 1x Double-sided Adhesive Pad (for display unit)
- Instruction Manual (this document)
Setup and Installation
Professional installation is recommended. Ensure the vehicle's power is off before beginning installation.
Sensor Installation:
Determine the optimal locations for the 8 sensors on your vehicle's front and rear bumpers. Ensure they are evenly spaced and at a consistent height. Use the provided hole saw drill bit to drill holes of the correct diameter (25mm) into the bumpers. Carefully insert the sensors into the drilled holes, ensuring a snug fit. The sensors are typically marked for front (A, B, C, D) and rear (E, F, G, H) placement, or can be used interchangeably depending on the wiring configuration.
Figure 2: Individual parking sensor. Control Box Placement:
Mount the main control box in a secure, dry location within the vehicle, such as the trunk or under the dashboard. Ensure it is easily accessible for wiring connections.
Figure 3: Main control box. Wiring Connections:
Connect each sensor cable to the corresponding port on the main control box (labeled A, B, C, D, E, F, G, H). Ensure the connections are firm. Connect the display unit cable to the "MONITOR" port on the control box. Connect the power cable to the "POWER" port on the control box. The power cable typically connects to the vehicle's reverse light power for rear sensors and an ignition-switched power source for front sensors, or a dedicated power source for continuous monitoring. Consult a professional for specific vehicle wiring.
Figure 4: Wiring diagram for the control box and components. 
Figure 5: System components with wiring connections. Display Unit Mounting:
Mount the LCD display unit on your dashboard using the provided double-sided adhesive pad. Choose a location that offers clear visibility without obstructing your view of the road.
Figure 6: LCD Display Unit. 
Figure 7: Adhesive pad for mounting.
Operating Instructions
The parking sensor system automatically activates when the vehicle is engaged in reverse gear (for rear sensors) or when the vehicle is moving slowly/at low speeds (for front sensors, if wired for continuous monitoring or a separate switch). The LCD display will show the distance to obstacles, and a buzzer will provide audible alerts.
Visual Display:
The high-quality LCD digital display shows the distance to obstacles in meters (m). The display accuracy is between 30-250 centimeters (0.3m - 2.5m). As you approach an obstacle, the displayed distance will decrease. The display also uses color-coded zones to indicate proximity:
- Blue Zone: Safety (further distance)
- Green Zone: Attention (medium distance)
- Red Zone: Danger (close proximity)
Figure 8: LCD display with distance and color zones. Audible Alarm:
The integrated buzzer provides a "BiBiBi" alarm prompt. The frequency of the alarm sound increases as the vehicle gets closer to an obstacle, providing an intuitive indication of proximity.
Figure 9: Sound alarm indication.
Maintenance
- Keep sensors clean from dirt, snow, or ice to ensure accurate detection.
- Periodically check all wiring connections to ensure they are secure.
- Avoid using harsh chemicals to clean the display unit; a soft, damp cloth is sufficient.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| System not powering on. | Loose power connection, no power from vehicle. | Check power cable connections. Verify vehicle's reverse light or ignition power source is active. |
| Inaccurate distance readings. | Dirty sensors, obstructed sensors, incorrect sensor angle. | Clean sensors. Ensure no objects are blocking sensors. Verify sensors are installed flush with the bumper. |
| No audible alarm. | Display unit speaker malfunction, wiring issue. | Check the display unit's connection to the control box. Ensure the speaker on the display unit is not covered. |
| Display shows "0.0m" constantly. | Sensor malfunction, object too close. | Ensure no objects are directly in front of or behind sensors. Check individual sensor connections. |
Specifications
- Brand: GEARZAAR
- Sensor Quantity: 8 (Front & Rear)
- Display Type: LCD Digital Display
- Detection Range: 0.3m - 2.5m (30cm - 250cm)
- Alarm Type: Audible "BiBiBi" buzzer, Visual color zones (Blue, Green, Red)
- Sensor Diameter: 25mm
- Control Box Dimensions (L x W x H): 115mm x 71mm x 26mm
- Display Unit Dimensions (L x H): 83mm x 34mm (Screen size: 2.6 inches)
- Origin: Mainland China
User Tips
- For optimal performance, ensure sensors are installed at a consistent height and angle on the bumper.
- Test the system thoroughly in a safe, open area after installation to familiarize yourself with its alerts and detection range.
- Consider painting the sensors to match your vehicle's bumper color, ensuring the paint is thin and does not obstruct the sensor's surface.
Warranty and Support
For any issues or questions regarding your GEARZAAR 8 Parking Sensors Car Reverse Kit, please contact the seller or manufacturer's customer support. Keep your purchase receipt as proof of purchase for warranty claims.
