Part Numbers/FCC ID: 13529632, 13508398, HYQ1EA. Frequency: 433MHz. 46 Chip. Note: Not a key shell, it is a whole key Proximity Fob Fits for Chevrolet Silverado 2019 2020, for GMC SIERRA 1500 2500 3500 2019-2021 Pros of Our Keyless Remote: With built in chip, sensitive response, 5 buttons car key: remote locking, unlocking, panic, opening trunk, remote engine start. Fast response, wireless remote control. Notice Programming: This remote and door key must be programmed and cut by a qualified locksmith or dealership(consult some different locksmiths before programming to ensure it is successful).NOTE a working key fob was needed in order to add a new key. This remote must be programmed and cut by a qualified locksmith or dealershipNeed to pay extra money for programming or cutting Package for Car Key Fob:1 x Car Keyless Entry Remote (Battery included). Size: 6.5x4.1cm / 2.56'x1.61'(L*W). Please check OE number/FCC ID and product picture with original one before purchase.