1. Introduction
The iBeam TE-4PSK Rear 4 Sensor Parking Assist Kit is designed to enhance vehicle safety by assisting with rear parking maneuvers. This system utilizes four ultrasonic sensors to detect the distance between your vehicle and rear obstructions. The distance is clearly displayed on an LED unit, accompanied by an audible alert to provide real-time feedback. A key feature of this system is its built-in learning function, which allows it to adapt to vehicles with permanent rear obstructions like spare tires or tow bars, preventing false alarms. This manual provides detailed instructions for the proper installation, setup, operation, and maintenance of your parking assist system.

Figure 1: Overview of the iBeam TE-4PSK Rear Parking Assist Kit components.
2. Package Contents
Before beginning installation, please verify that all components are present in the package:
- iBeam Parking Sensors - Rear Parking Assist Kit (includes 4 ultrasonic sensors, control box, LED display, and necessary wiring)
If any items are missing or damaged, please contact your retailer or iBeam customer support immediately.
3. Key Features
- Universal Compatibility: Designed for most vehicles, particularly those without metal bumpers.
- Adjustable Sensitivity: Allows detection up to 5 feet away, with customizable sensitivity settings.
- LED Display with Audible Alert: Provides visual distance feedback and an optional audible warning.
- Built-in Learn Feature: Identifies and ignores permanent vehicle obstructions (e.g., spare tires, tow bars) to prevent false alarms.
- Waterproof Connections: Ensures durability and reliable performance in various weather conditions.
- Paintable Sensors: Sensors can be painted to match your vehicle's bumper color for a seamless look.

Figure 2: Visual representation of key features and components.
4. Installation
Professional installation is highly recommended for this product to ensure proper functionality and avoid damage to your vehicle. Incorrect installation can lead to system malfunction or vehicle damage. If you choose to install it yourself, please follow these general guidelines carefully:
4.1 Sensor Placement
- Determine Sensor Locations: Mark four equidistant points on the rear bumper. Ensure sensors are mounted at a consistent height, typically between 18-24 inches (45-60 cm) from the ground, and clear of any metal structures or exhaust pipes that could interfere with ultrasonic waves.
- Drill Holes: Use the provided drill bit (if included) to create precise holes for the sensors. Ensure the holes are clean and smooth.
- Insert Sensors: Carefully push each sensor into its designated hole until it sits flush with the bumper surface. Ensure the sensors are oriented correctly (if directional).
- Route Wiring: Route the sensor cables through the bumper and into the vehicle's interior, typically through an existing grommet or a newly drilled, sealed hole. Secure cables to prevent pinching or damage.
4.2 Control Box and Power Connection
- Mount Control Box: Find a secure, dry location inside the vehicle (e.g., trunk, under the dashboard) to mount the control box. Avoid areas exposed to extreme heat, moisture, or vibration.
- Connect Sensors: Plug each sensor cable into the corresponding port on the control box. Ensure connections are firm.
- Connect Power: Connect the control box's power wire to the vehicle's reverse light circuit. This ensures the system activates automatically when the vehicle is put into reverse. Connect the ground wire to a suitable chassis ground point.
- Connect LED Display: Route the cable for the LED display to a visible location for the driver, such as on the dashboard or rearview mirror. Plug it into the control box.
Important: Before finalizing all connections and reassembling vehicle panels, perform a functional test of the system as described in the "Setup" section.
5. Setup and Calibration
After installation, proper setup is crucial for optimal performance.
5.1 Sensitivity Adjustment
The TE-4PSK features adjustable sensitivity. Refer to the control box or LED display for specific adjustment methods (e.g., dip switches, buttons). Start with a medium sensitivity setting and adjust as needed based on your vehicle and driving environment. Higher sensitivity detects objects further away but may be more prone to false alarms in busy environments.
5.2 Learning Function (Obstruction Identification)
This system includes a unique learning function to prevent false alarms from permanent vehicle obstructions (e.g., spare tires, tow hitches, bike racks). To activate and utilize this feature:
- Ensure your vehicle is parked in an open area with no external obstructions behind it.
- Engage the reverse gear to activate the parking assist system.
- Follow the specific instructions in your detailed product manual (not provided here, but typically involves pressing a button on the control box or LED display for a few seconds). The system will then scan and "learn" the fixed obstructions on your vehicle's rear.
- Once the learning process is complete, the system will ignore these identified obstructions during normal operation.
Note: If you add or remove permanent rear obstructions, you may need to repeat the learning process.
6. Operation
The iBeam TE-4PSK system operates automatically when the vehicle is shifted into reverse gear.
6.1 Distance Detection
The four ultrasonic sensors continuously emit and receive ultrasonic waves. When an obstruction is detected behind the vehicle, the system calculates the distance.
6.2 LED Display Feedback
The LED display unit will show the distance to the nearest obstruction, typically in feet. As you get closer to an object, the displayed distance will decrease. The display may also feature color-coded segments (e.g., green, yellow, red) to visually indicate proximity.
6.3 Audible Alert
In addition to the visual display, the system provides an audible alert. The frequency of the beeping sound increases as the vehicle approaches an obstruction. A continuous tone typically indicates that the vehicle is very close to an object, signaling the driver to stop. The audible alert can often be defeated (turned off) if desired, though it is recommended to keep it active for maximum safety.
Always exercise caution and use your mirrors and direct observation when backing up, even with the parking assist system active. The system is an aid, not a substitute for safe driving practices.
7. Maintenance
To ensure the longevity and reliable performance of your iBeam TE-4PSK parking assist system, follow these simple maintenance guidelines:
- Keep Sensors Clean: Regularly inspect and clean the ultrasonic sensors on your bumper. Dirt, mud, snow, or ice can obstruct the sensors and impair their detection capabilities. Use a soft cloth and mild soap and water to gently clean them. Avoid abrasive cleaners or high-pressure washers directly on the sensors.
- Inspect Wiring: Periodically check visible wiring for any signs of wear, fraying, or damage. Ensure all connections remain secure.
- Avoid Harsh Chemicals: Do not use strong chemical cleaners or solvents near the sensors or LED display, as these can damage the plastic components.
- System Check: Occasionally test the system by backing up towards a known object in a safe environment to ensure it is functioning correctly.
8. Troubleshooting
If you encounter issues with your iBeam TE-4PSK parking assist system, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| System does not activate when in reverse. |
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| False alarms or continuous beeping. |
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| Inaccurate distance readings. |
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| LED display not working. |
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If the problem persists after attempting these solutions, please contact iBeam customer support or a qualified automotive technician.
9. Specifications
| Model Number | TE-4PSK |
| Detection Range | Up to 5 feet (adjustable) |
| Sensor Quantity | 4 Ultrasonic Sensors |
| Display Type | LED Display with Digital Distance Readout |
| Alert Type | Audible Beep (defeatable) |
| Special Features | Built-in Learn Function, Waterproof Connections, Paintable Sensors |
| Item Weight | 1.3 pounds |
| Product Dimensions | 9.5 x 2.5 x 6.5 inches (packaging/control box) |
10. Warranty and Support
iBeam products are designed for reliability and performance. For specific warranty information regarding your TE-4PSK Rear 4 Sensor Parking Assist Kit, please refer to the warranty card included with your product or visit the official iBeam website. Keep your proof of purchase for warranty claims.
For technical assistance, troubleshooting beyond this manual, or to inquire about replacement parts, please contact iBeam customer support. Contact details can typically be found on the product packaging or the official iBeam website.

