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:
Checking the engine oil level
1. Be sure the vehicle is on level ground.
2. Start the engine and allow it to reach normal operating temperature.
3. Turn the engine off and wait for a few minutes (about 5 minutes) for the oil
...
TRUNK LID/TAIL GATE
WARNING:
The trunk lid or the tail gate should always be kept completely closed while
the vehicle is in motion. If it is left open or ajar, poisonous exhaust gases may
enter the car resulting in ...
2005 Hyundai Tucson review
It all will make sense a year from now.
Hyundai has introduced a compact sport-utility vehicle for 2005 called
Tucson, the production version of the prototype unveiled at the Chicago Auto
Show i ...


