General description The TPMS Learning System Tire Valve Activator is designed for use with OPEL GM vehicles to facilitate the activation and resetting of tire pressure monitoring sensors (TPMS). This tool is user-friendly and allows for quick activation of individual TPMS sensors with just the press of a button. Please ensure your vehicle model is compatible with the EL-50448 tool, as it is not suitable for trucks. Technical specifications Model: EL-50448 Power: Uses a NEW 9V battery (not included) Installation Put the vehicle into TPMS learning mode (the car will honk twice). Start the relearn process from the left front tire, ensuring the antenna is in the correct position. Press and release the on/off switch; once the speaker chirps, move to the next tire. Follow the installation order: front left, front right, rear right, rear left. After all sensors are reset, the car will beep twice to indicate successful relearning. Usage Activate the TPMS sensor by holding the tool against the