[Programming]: DIY programming is . This proximity smart key fob is necessary to be programmed by a professional dealer or locksmith. [Sturdiness and Durability]: Comes with upgraded chip, and made of premium engineering materials to support anti-fall quality, and function is the same as the factory car key, includes remote control features lock, unlock, panic, remote start. Replace NO.: Compatible with FOR FCC ID: HYQ4AA. P: 13529664, 13508767, 13585722 Frequency: 315MHz Compatibility: Replacement for 2017-2018 Bolt 2018-2020 2017-2020 2018-2020 Hatchback 2016-2019 Volt Material: plastic colour: Black Package Contents: 1 x Key Fob Car Keyless Entry Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.