1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your Partuto Tire Pressure Monitoring System (TPMS) Sensor, model 28103AG01C. This sensor is designed to accurately monitor the air pressure inside your vehicle's tires, contributing to driving safety and optimal tire performance. Please read these instructions carefully before installation and use.
2. Product Features
The Partuto TPMS sensor is engineered for reliability and precision, offering the following key features:
- Accurate Monitoring: Designed to provide precise tire pressure readings.
- Durability: Constructed from plastic, metal, and rubber for long-lasting performance.
- Long Battery Life: Equipped with a battery designed to last for 5 years or more.
- Wide Temperature Range: Operates effectively in temperatures from -40°C to +125°C.
- Pre-Programmed: Sensors are pre-programmed for faster relearning by the vehicle's system.


3. Compatibility
This TPMS sensor (OE Number: 28103AG01C) is compatible with the following Subaru vehicle models and years:
- Subaru Forester: 2008-2018
- Subaru Impreza: 2008-2016
- Subaru Legacy: 2008-2017
- Subaru Outback: 2008-2017
- Subaru Tribeca: 2009-2014
- Subaru WRX: 2015-2021
- Subaru WRX STI: 2015-2021
- Subaru XV Crosstrek: 2013-2015
4. Package Contents
Each package contains:
- 1 x Partuto Tire Pressure Sensor (Model: 28103AG01C)
5. Specifications
| Specification | Value |
|---|---|
| OE Number | 28103AG01C |
| Frequency | 315MHz |
| Battery Service Life Time | ≥5 years |
| Temperature Measurement Range | -40°C to +125°C |
| Pressure Monitoring Range | 100 – 900kPa |
| Electric Current (Static) | ≤4uA |
| Electric Current (Instantaneous Emission) | ≤3.3mA |
| Voltage | 2.3-3.6V |
| Material | Plastic, Metal, Rubber |
| Color | Black |
| Item Weight | 1.06 ounces |
| Package Dimensions | 3.7 x 3.39 x 1.02 inches |
6. Setup and Installation
Installation of the TPMS sensor should ideally be performed by a qualified technician to ensure proper fitment and function. Follow these general steps:
- Remove the Old Tire Valve: Carefully remove the existing tire valve from the wheel.
- Install the New TPMS Sensor: Insert the new Partuto TPMS sensor into the valve stem hole on the wheel. Ensure it is securely seated and tightened according to manufacturer specifications for the wheel.
- Inflate Tire and Install Tire Valve: Inflate the tire to the recommended pressure and ensure the tire valve cap is securely installed.
- Test Dynamic Balancing: After installation, it is recommended to perform dynamic balancing of the wheel and tire assembly. Reinstall the tire onto the vehicle.

7. Operating Instructions (Sensor Matching)
After physical installation, the new TPMS sensor needs to be matched or relearned by your vehicle's system. Follow these steps:
- Initial Setup: After installation, park the car and turn off the engine for approximately 20 minutes. Ensure the remote control key is kept at least 5 meters away from the vehicle during this period.
- Initiate Matching: Start the vehicle and drive it at a speed of 25 km/h (approximately 15 mph) or above for 5 to 10 minutes. This driving period allows the vehicle's TPMS system to detect and match with the new sensor.
- Cold Weather Consideration: If the outdoor temperature is below 0°C (32°F), the matching process may take longer than usual. This is normal. Please allow additional time for the system to complete the matching.
Once successfully matched, the TPMS warning light on your dashboard should turn off, indicating that the system is functioning correctly.
8. Maintenance
The Partuto TPMS sensor is designed for minimal maintenance. However, regular tire maintenance practices are crucial for the longevity and accuracy of your TPMS system:
- Regular Tire Pressure Checks: Even with TPMS, manually check your tire pressure periodically with a reliable gauge.
- Proper Tire Inflation: Always maintain your tires at the manufacturer's recommended pressure.
- Professional Inspection: Have your TPMS sensors inspected by a professional during tire rotations or replacements to check for any damage or wear.
9. Troubleshooting
If you encounter issues with your TPMS sensor, consider the following:
- TPMS Light Remains On After Installation: Ensure you have followed the sensor matching procedure (Section 7) correctly. Drive the vehicle for the recommended time and speed.
- Extended Matching Time in Cold Weather: As noted in Section 7, cold temperatures (below 0°C) can prolong the sensor matching process. Allow more time for the system to register the new sensor.
- Persistent Warning Light: If the TPMS warning light remains on after following all instructions, there may be an underlying issue with the sensor, the vehicle's TPMS receiver, or another component. It is recommended to consult a qualified automotive technician for diagnosis and repair.
10. Warranty Information
Specific warranty details for the Partuto TPMS Sensor No.28103AG01C are not provided in the product information. For warranty inquiries, please refer to the product packaging or contact the seller or manufacturer directly.
11. Support Information
Contact information for product support is not provided in the product details. For technical assistance or customer service, please reach out to the retailer where the product was purchased or visit the official Partuto website if available.