Kia Optima: Smart key / Loss of the smart key, Smart key precautions

Kia Optima DL3 2019-2025 Owner's Manual / Features of your vehicle / Smart key / Loss of the smart key, Smart key precautions

Loss of the smart key

A maximum of 2 smart keys can be registered to a single vehicle. If you happen to lose your smart key, you will not be able to start the engine. You should immediately take the vehicle and remaining key to your authorized Kia dealer (tow the vehicle, if necessary) to protect it from potential theft.

Smart key precautions

CAUTION - Transmitter

Keep the transmitter away from water or any liquid, as it can become damaged and not function properly.

✽ NOTICE

If the keyless entry system is inoperative due to exposure to water or liquids, it will not be covered by your manufacturer’s vehicle warranty.

Smart key function
To remove the mechanical key, press and hold the release button(1) and remove the mechanical key (2). To reinstall the mechanical key, put the key into the hole and push it until a click sound ...

Battery replacement
A smart key battery should last for several years, but if the smart key is not working properly, try replacing the battery with a new one. If you are unsure how to use your smart key or replace ...

Other information:

Kia Optima DL3 2019-2025 Owner's Manual: Turn signals and lane change signals


The ignition switch must be on for the turn signals to function. To turn on the turn signals, move the lever up or down (A). The green arrow indicators on the instrument panel indicate which turn signal is operating. They will self-cancel after a turn is completed. If the indicator continues ...

Kia Optima DL3 2019-2025 Service and Repair Manual: Fuel Filler Door


Components and components location Components Location 1. Fuel filler door unlock actuator ...

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