We got a small personalized brochure in the mail yesterday. Contained within it is a note that there is a map update available. However as we found out the other day, following their link, there is no map update for a 2018 Clarity. In fact only a 2017 Clarity is listed. The only map updates for a 2018 model is an Accord & an Odyssey. Does anyone have any idea if such an update actually exists?