Crimestopper GM-TB7 Passkey 3 and Passlock I and II Bypass Kit Remote-start integration module Passkey 3 & Pass lock 1 & 2 bypass for Buick, Cadillac, Chevrolet, GMC, Hummer, Pontiac, Saturn & Suzuki vehicles Programming/flashing required before use Includes the Fortin patented tumbler ring & built-in transponder, PATS-GM-2 module, 2 wiring harnesses & instruction manual No key required Works on 109 different vehicle Stable from 4.5 to 25 volts, and to -40 degrees Celsius Immobilizer bypass, bypass the vehicles immobilizer (VATS, Passlock, PATS and PassKey Transponders) for enabling remote car starter installations