Mo_reen

Hey - I have a 2017 Highlander XLE. I replaced the map SD card about 3 yrs ago, no issues. Card is still in place and now the system gives me the message "Unable to read the map SD data - Check the Map SD" and I have no navigation system. Other times, it works for a short period of time - but it works rarely. I don't want to buy a new SD card only for it to not work if there is something else wrong. Ideas would be greatly appreciated TIA, Maureen