The 2014 kia optima does have a remote start option. if it is not working on the car then you need to check the key fob for a dead battery. all key fobs use the same type of battery, which is a cr2032 battery. these are small coin-shaped batteries and they will cost you about 5 dollars each on average. you can find them in the same place you would normal batteries. to change the battery you will need to remove the back panel of the fob. some fobs are different than others. you may be able to simply pull down on the back and have the piece slide off. if so then you can simply remove the old battery and put the new one in its place. however, you may need to remove a couple of tiny screws before you can do this. they are not hard to get out, as long as you have a small enough screwdriver on hand.
The 2014 kia optima remote starter creates a superb convenience by allowing you to start your vehicle from up to 1000 ft away with clear transmission.