Go to their internet site as I did and get the instructions.
They are hard to follow but after several tries I got it to work. Good Luck

This is straight from Genie.

Step-By-Step Programming Procedure

1. Reset Keypad--slide keypad cover half way up. While pressing the # and 8 buttons simultaneously, slide the Keypad Cover the rest of the way up until it latches. Release # and 8 buttons. At this point, if the back lit keypad light stays on, proceed directly to step 2. If the back lit keypad light goes out, close the cover pad and reopen it until it clicks. Proceed to step 2.
2. Press 3, 5, 7 and # buttons in said order.
3. Enter your PIN and press the # button. Your PIN number can be created from any group of numbers up to 8 digits of your choice. Note: Do NOT use"#" or "star" key.
4. Enter Door Code, as determined from the chart at left, and press the "star" key.
5. Slide Keypad Cover down.
6. Test Keypad by sliding cover up until it latches. Enter your PIN and Press "star" key. Your door should operate.