To resume cruising speed at more than approximately 25 mph (40 km/h)
Hyundai Accent / HYundai Accent 2011 Owners Manual / Features of your Hyundai / Cruise Control System / To resume cruising speed at more than approximately 25 mph (40 km/h)

If any method other than the CRUISE ONOFF switch was used to cancel cruising speed and the system is still activated, the most recent set speed will automatically resume when the RES/+ switch is pushed. It will not resume, however, if the vehicle speed has dropped below approximately 25 mph (40 km/h)
See also:
Steering gear box, linkage & boots/lower arm ball joint
With the vehicle stopped and engine off, check for excessive free-play in the
steering wheel. Check the linkage for bends or damage. Check the dust boots and
ball joints for deterioration, cracks, ...
7,500 miles (12,000 km) or 6 months
Inspect air cleaner filter
Inspect vacuum hose
Replace engine oil and filter (7,500 miles (12,000 km) or 12 months) ...


