Kia Optima: Smart key / 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 the battery, contact an authorized Kia dealer.
1. Remove the mechanical key.
2. Pry open the rear cover.
3. Replace the battery with a new battery (CR2032). When replacing the battery, make sure the battery is in the correct position.
4. Install the battery in the reverse order of removal.
- The smart key is designed to give you years of trouble-free use, however it can malfunction if exposed to moisture or static electricity. If you are unsure how to use or replace the battery, contact an authorized Kia dealer.
- Using the wrong battery can cause the smart key to malfunction. Be sure to use the correct battery.
- To avoid damaging the smart key, don't drop it, get it wet, or expose it to heat or sunlight.
An inappropriately disposed
battery can be harmful to the environment and human health. Dispose the battery
according to your local law(s) or regulations.
CAUTION - Smart key damage
Do not drop, get wet or expose the smart key to heat or sunlight, or it will be damaged.
IC WARNING
This device complies with Industry Canada licenceexempt RSS standard(s).
Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.
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 ...
Smart key immobilizer system
Your vehicle is equipped with an electronic engine immobilizer system to reduce
the risk of unauthorized vehicle use.
Your immobilizer system is comprised of a small transponder in the smart key
...
Other information:
Kia Optima DL3 2019-2021 Owner's Manual: Armed stage
Park the vehicle and stop the engine. Arm the system as described below. 1. Remove the ignition key from the ignition switch and exit the vehicle. 2. Make sure that all doors (and trunk) and engine hood are closed and latched. 3. Lock the doors using the transmitter of the keyless entry system (o ...
Kia Optima DL3 2019-2021 Owner's Manual: Fuses
A vehicle’s electrical system is protected from electrical overload damage by fuses. This vehicle has 2 (or 3) fuse panels, one located in the driver’s side panel bolster, the other in the engine compartment near the battery. If any of your vehicle’s lights, accessories, or controls do ...