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, ...
Valve clearance
Inspect excessive valve noise and/or engine vibration and adjust if necessary.
An authorized HYUNDAI dealer should perform the operation. ...
Checking the amount of air conditioner refrigerant and compressor lubricant
When the amount of refrigerant is low, the performance of the air conditioning
is reduced. Overfilling also has a negative influence on the air conditioning system.
Therefore, if abnormal operatio ...