You can start the engine without inserting the key.
CAUTION
To prevent damaging the smart key:
Hyundai Tucson (LM) 2010-2015 Owners Manual: Aluminum and chrome wheel maintenance
The aluminum and chrome wheels are coated with a clear protective finish.
CAUTION
Do not use abrasive cleaner, polishing compound, solvent, or wire brushes
on aluminum or chrome wheels.
Clean the wheel when it has cooled.
Use only a mild soap or neutral detergent, and rinse thoroughly wi ...
Hyundai Tucson (LM) 2010-2015 Owners Manual: Mechanical key
Turn the key toward the rear of the vehicle to unlock and toward the front of
the vehicle to lock.
If you lock the door with a key, all vehicle doors will lock automatically. From
the driver’s door, turn the key to the right once to unlock the driver’s door and
once more within 4 second ...