I have had trouble with my 2013 Sonata Ltd Navigation since I bought the car new. 20% of the time it does not automatically link with my bluetooth iphone. Fails to recognize some traffic circles that have been in place for 5-10 years. Chooses weird routes, when I know better & faster ones. Fights me to make u-turns until it finally gets the "word" and goes with my route choice. Slow to recalculate if you have to avoid something, and by then you could be a 1/4 mile past the correction point. On some journeys, it has me going way past the proper turn, then retrace the road back for many miles. Naturally, I can see the error on the screen & ignore the stupid choice. However, you have no idea of the true time you are due to arrive at your destination. On some other trips, it calculates the time of travel around 40-50% more than it should be. During the last few miles, it quickly counts down the arrival time, as if it were asleep and suddenly woke up to reality. Dealer says they "must" charge me $200 to install new maps, because that's what Hyundai charges them. I updated my old Garmin for $50 over the internet !!
** These issues are completely unacceptable. Shame on you Hyundai !