General description JDiag EL50448 TPMS Reset Tool is designed for use with all General Motors products, including Opel, Buick, Cadillac, Chevrolet, and GMC vehicles manufactured for the North American market. This tool is essential for resetting the Tire Pressure Monitoring System (TPMS) on compatible vehicles. Technical specifications Compatible with GM vehicles equipped with 315 or 433 MHz Tire Pressure Monitoring System (TPM) Model: EL50448 Usage This relearn procedure can be performed using the special tool EL-50448. Note that the tool will not function with aftermarket sensors that do not operate at the correct frequency.