Taillights stay on

[COLOR=#383A3B][FONT=&quot]I have a 2018 Honda Goldwing Tour DCT with a Roadsmith Trike conversion.[/FONT][/COLOR]

[COLOR=#383A3B][FONT=&quot]About every third time when I shut down the taillights remain on.[/FONT][/COLOR]

[COLOR=#383A3B][FONT=&quot]To get them off I need to turn the system on and off several times.[/FONT][/COLOR]

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[COLOR=#383A3B][FONT=&quot]Any thoughts as to the cause/fix?[/FONT][/COLOR]