Feature: 1. For GM vehicles equipped with 315 or 433 MHz tire pressure monitoring (TPM) system, a "sensor relearn procedure" must be performed after tire rotation, remote door lock receiver module replacement, or tire pressure sensor replacement. can use 2.special tool: A special tool for EL-50448 to perform this relearning process. Also applies to 2014 GM models. 3. Designated diagnostic tools: Tire pressure sensors on 2012 and later models can be read using only some of the designated diagnostic tools. 4. Compatible: EL50448 is suitable for all GM (Buick, Cadillac, Chevrolet), GMC) product manufacturing. If you buy an aftermarket sensor with the wrong frequency, it won't work. 5. Widely used: EL50448 fits most vehicles of G.M with 315 or 433 MHz tire pressure monitoring (TPM ) system. 6.Effect:EL-50448 TPMS reset tool can help you more easily in 3 steps Reprogram all tires. The Tire Pressure Monitoring Sensor Activation Tool is easy to use and activates a single TPM sensor with the push of a button. Description: 1. For vehicles equipped with a 315 or 433 MHz Tire Pressure Monitoring (TPM) system, the "Sensor Relearn" "Procedure" must be performed after tire rotation, remote door lock receiver module replacement, or tire pressure sensor replacement . This relearn procedure can be performed using the special tool EL-50448. 2. The EL50448 is an essential tool for tire pressure sensor replacement, tire pressure alarm removal or tire replacement.For most General Motors (Chevrolet/Buick/GMC/Opel) equipped with 315 or 433 MHz Tire Pressure Monitoring System (TPMS) sensor. Package includes: 1 set of El-50448 Tire Pressure Resetter