'Hold the H button to change hours and hold the M button to change
minutes. Depressing the R button sets the clock to the nearest whole
hour. One of the failure modes of these clocks is that the buttons don't
work. If that's the case, you'll need a new clock.'
Reply: Ive seen these on other year SantaFes and Sonatas, but, i dont
have them on mine. Ill just swing into a local Hyundai Dealer tomorrow.