See also:

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 ...

Check Spark Plugs and Ignition System
Inspect your spark plugs and replace them if necessary. Also check all ignition wiring and components to be sure they are not cracked, worn or damaged in any way. ...

Risk of rollover
WARNING: o The 2WD Tucson is not designed for offroad use. The 4WD Tucson is designed primarily for use on paved roads. However, occasional use in off-highway conditions such as established unpav ...