[Easy TPMS Reset Tool]: OEC-T5 EL-50448 tpms reset tool can help you reprogram all tires much easier within just 3 steps. Tire pressure monitor sensor activation tool is simple to activate the individual TPM sensor with only one button. [How to Use]:Before u use the EL-50448 tire pressure sensor tool,make sure u set the car into TPMS Learn Model and follow the car light indication. Hold it against the sidewall of the tire, near the valve stem. Depress Learn button until u heard horn sound from the car. [Attention]:Make sure that there is TPMS sensor function in your tires. Watch carefully the vehicle coverage inside the link picture. International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.