Kia Optima Hybrid 2017 Owner's Manual page 135

Features of your vehicle
Smart key function
OUM046433LC
Lock (1)
All doors (and trunk) are locked if the
lock button is pressed.
If all doors (and trunk) are closed, the
hazard warning lights will blink once to
indicate that all doors (and trunk) are
locked.
Unlock (2)
All doors (and trunk) are unlocked if the
unlock button is pressed.
The hazard warning lights will blink
twice to indicate that all doors (and
trunk) are unlocked.
5-06
However, after pressing this button,
the doors (and trunk) will lock automat‐
ically unless you open any door within
30 seconds.
Trunk unlock (3)
The trunk is unlocked if the button is
pressed for more than 1 second.
The hazard warning lights will blink
twice to indicate that the trunk is un‐
locked.
However, after pressing this button,
the trunk will lock automatically unless
you open the trunk within 30 seconds.
Also, once the trunk is opened and then
closed, the trunk will lock automatically.
Smart key system operation
OXM043002
With a smart key, you can lock or un‐
lock a door (and trunk) and even start
the engine without inserting the key.
Carrying the smart key, you may lock
and unlock the vehicle doors (and
trunk). Also, you may start the engine.
Refer to the following for more details.