Replace or wait to fail on 2003 Hyundai Sonata

refering to my timing belt, the car has 77,000 miles on it. Should I replace the timing belt now or wait for it to fail?
Thank you, Ray

Asked by for the 2003 Hyundai Sonata
Hyundai recommends replacement every 60,000 miles, so if hasn't been replaced, do it now! If the belt breaks, you will be looking at thousands of dollars of damage. You should have the tensioner replaced as well.