Description feature: 1. For GM vehicles equipped with a 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. 2.special tool: EL-50448 special tool to perform this relearning process. Also suitable for 2014 GM models. 3. Designated diagnostic tools: The tire pressure sensor of 2012 and later models can be read only with some designated diagnostic tools. 4. Compatible: EL50448 is suitable for all products made by General Motors (Buick, Cadillac, Chevrolet, GMC). If you buy an aftermarket sensor with the wrong frequency, it wont work. 5. Widely used: EL50448 is suitable for most of G.Ms vehicles with 315 or 433 MHz tire pressure monitoring (TPM) system. 6. Effect: EL-50448 TPMS reset tool can help you reprogram all tires more easily in 3 steps. The Tire Pressure Monitoring Sensor Activation Tool is easy to use and activates a single TPM sensor with the push of a button. illustrate: 1. For vehicles equipped with a 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. This relearning process can be performed using the dedicated tool EL-50448. 2. The EL50448 is an essential tool for replacing tire pressure sensors, tire pressure alarms, or disassembling or replacing tires. Fits most GM vehicles (Chevrolet/Buick/GMC/Opel) with a 315 or 433 MHz Tire Pressure Monitoring System (TPMS) sensor. Specification: color is orange Size: 150*65*5mm Package Included: 1setx El-50448 Tire Pressure Resetter