Drive Safer with Precision – Premium TPMS Sensor Upgrade your ride with our Advanced TPMS Sensor – engineered for accuracy, durability, and peace of mind. Whether you're cruising the highway or navigating city streets, this sensor delivers real-time tire pressure and temperature readings directly to your dashboard, helping you: -Prevent blowouts and improve fuel efficiency -Extend tire life with constant monitoring -Stay compliant with safety standards -Seamlessly integrate with most major vehicle makes and models Built with OE-level performance and long-lasting battery life, our TPMS sensor is easy to install and designed to withstand extreme conditions – from blazing heat to icy roads. - Plug, program, and protect – it's that simple. Don’t compromise on safety. Choose the TPMS sensor trusted by professionals and drivers who demand the best. Available now. Fast shipping. Satisfaction guaranteed. MAXone TPMS sensors in a set of 4 A TPMS relearn (Tire Pressure Monitoring System relearn) is the process of teaching a vehicle's TPMS system to recognize the new positions or IDs of the tire pressure sensors. This is necessary when: - Tires or wheels are rotated. - A sensor is replaced. - New wheels/tires with different sensors are installed. - The system is reset after a repair or battery disconnect. Purpose: To ensure the vehicle knows which sensor is in which position (e.g., front-left, rear-right) so it can accurately report tire pressures. --- Types of TPMS Relearn Procedures: 1. Auto Relearn: - The vehicle learns the sensor locations automatically after a short drive (usually 10–20 minutes). - Common in many modern vehicles. - No tools required, just follow specific driving conditions. 2. Manual Relearn: - Requires user input via the vehicle’s menu system or dashboard controls. - The vehicle enters “learn mode,” and the sensors are triggered in a specific sequence (usually starting at the driver’s front wheel). - May need a TPMS scan tool or a magnet/trigger tool. 3. OBD Relearn: - Requires a TPMS scan tool that communicates directly with the vehicle’s ECU via the OBD-II port. - Sensor IDs are read with the scan tool and then uploaded to the ECU. - Common for vehicles that don't support manual or auto relearn. General Steps (Manual Example): 1. Set all tires to the correct pressure. 2. Put the car in relearn mode (via ignition key cycles or menu selection). 3. Start at the driver's front wheel. 4. Use a TPMS tool to trigger the sensor (you’ll usually hear a honk or beep). 5. Move to the next tire in a clockwise pattern. 6. Exit relearn mode once complete (confirmation tone or display message). --- Tools You Might Need: - TPMS Relearn or trigger tool. - OBD-II TPMS programmer (for OBD relearn). - Tire pressure gauge. - Repair manual or scan tool instructions for your specific vehicle. If you tell us the year, make, and model of your vehicle, We can give you the exact relearn procedure. 2009 Subaru Legacy TPMS MaxONE Sensor Set 28103AJ00A