Nissan Maxima Owners Manual: Clearing the programmed information
The following procedure clears the programmed information from both buttons. Individual buttons cannot be cleared. However, individual buttons can be reprogrammed. For additional information, refer to "Reprogramming a single HomeLink button" in this section.
To clear all programming: 1. Press and hold the two outer HomeLink buttons until the indicator light begins to flash in approximately 10 seconds. Do not hold for longer than 20 seconds.
2. Release both buttons.
HomeLink is now in the programming mode and can be programmed at any time beginning with "Programming HomeLink" - Step 1.