Dealership is great so this is more about Toyota. ...

Dealership is great so this is more about Toyota. Was assured in Jan 2019, when I leased this Highlander that I would get a new GPS map update asap. That was 10 months ago. The nav is useless in Seattle. My $149 Garmin and Google maps are better. Why won't Toyota keep their maps updated? Anyone know if there is a hack around this?