How do you program the garage door opener on a Hyundai Elantra?

To program the garage door opener on a Hyundai Elantra, first, ensure your vehicle is parked within range of the garage door opener. Press and hold the two outer buttons on the HomeLink system (usually located on the rearview mirror) until the indicator light begins to flash. Then, press and hold the button on your garage door remote while simultaneously pressing the desired HomeLink button until the light changes from a slow blink to a rapid blink. Finally, test the programmed button to confirm it operates the garage door.