[Durable Construction] The tire pressure monitoring system activation tool uses sensitive sensor chips for faster operation and a gold-plated circuit board for stability. Our GM tire pressure monitoring system relearn tool is specially designed for precision, accuracy, and durability. [Enhanced Tire Maintenance] Use tire pressure sensors in the relearn tools, maintain optimal operation of your vehicle's tire pressure monitoring system, and eliminate dashboard warning lights for a safer and more efficient driving experience. [Easy to Use] The EL50448 car tire sensor reset tool is easy to use and helps you easily reset all tires in just 3 steps. Make sure the vehicle is in tire pressure monitoring system learning mode and follow the repair instructions. Attach the tool to the tire's sidewall near the valve stem. Attach the tool to the tire's sidewall while pressing the learn button. [Friendly Reminder] The EL-50448 tire pressure monitoring system relearn tool is an essential tool for changing tire pressure sensors, clearing tire pressure alarms, or changing tires. Note: ① Different vehicles may take different amounts of time to reset all tire sensors after rotation. ② Test all tires in this order: left front, right front, right rear, left rear. ③ Use a 9V battery (not included). [Applicable] The tire pressure monitoring system relearn tool is specially designed for most cars equipped with 315/433MHz from 2006 to 2023. Not suitable for heavy trucks with more than 4 tires or vehicles equipped with external tire pressure monitoring systems.