The transmitter's controller chip has a memory location that holds the current 40-bit code. When you push a button on your key fob, it sends that 40-bit code along with a function code that tells the car what you want to do whether to lock the doors, unlock the doors, open the trunk, etc.

Toyota Genuine Parts is the exact Original Equipment Manufacturer (OEM) part that your vehicle came with. When you select a genuine OEM part, you can rely on the high quality and effectiveness of the product and brand without having to guess if the product will work in sequence with your vehicle.

Protecting your investment is important and choosing the right parts can be challenging. So don't risk another minute by searching and buying something that might work. Stick with what you know and choose a Genuine OEM part.