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

Kia Optima DL3 2019-2021 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 2019-2021 Service and Repair Manual: A/C Pressure Transducer


Description and operation Description The A/C Pressure Transducer (APT) converts the pressure value of high pressure line into voltage value after measuring it. By converted voltage value, engine ECU controls the cooling fan by operating it high speed or low speed. Engine ECU stops ...

Kia Optima DL3 2019-2021 Service and Repair Manual: Fog Lamp


Repair procedures Removal Front Fog Lamp 1. Disconnect the negative battery terminal. 2. Remove the front bumper assembly. (Refer to Body - "Front Bumper Assembly") 3. Remove the front fog lamp assembly (A) by ...

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