Erasing HomeLink buttons

To erase the three programmed buttons (individual buttons cannot be erased):
• Press and hold the two outer HomeLink buttons until the indicator light begins to flash-after 20 seconds. Release both buttons. Do not hold for longer that 30 seconds.

HomeLink is now in the train (or learning) mode and can be programmed at any time beginning with Step 1 in the Programming section.
See also:
Signal indicator mirrors (if equipped)
When the turn signal is activated, the outer portion of the appropriate
mirror housing will blink. This provides an additional warning to other
drivers that your vehicle is about to turn. ...
Warning lights and chimes
Warning lights and gauges can alert you to a vehicle condition that may
become serious enough to cause extensive repairs. A warning light may
illuminate when a problem exists with one of your ve ...
Switching to normal cruise control
You can manually change from adaptive cruise control (ACC) to normal
cruise control through the message center. Refer to Message center in
the Instrument Cluster chapter. If normal cruise control ...
