[Issue Closed] How can I access my 2020 Kia Optima's key code to program new keys?

1394 views - Last reply: May 26, 2025
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Where's the key code hidden on my 2020 Kia Optima for key programming?

Hello! We've developed a VIN-based tool to help you get your key code for the 2020 Kia Optima. Check it out here: VIN Key Code Generator.

Replies (3)

Been searching everywhere for help with my 2020 Kia Optima's key code.

This thread might save my 2020 Kia Optima. Thanks everyone!

I can’t believe I found this. Been stuck with my 2020 Kia Optima too.

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Key Fob Issues
Common causes: dead battery (most common), water damage, internal circuit damage, or the fob lost synchronization with your car. Try replacing the battery first. If that doesn't help, the fob may need reprogramming or replacement.
Security Systems
A flashing security light often indicates an immobilizer issue. Solid light suggests the system is armed but not recognizing your key. Causes: faulty key chip, damaged antenna ring, low battery, or system needs reprogramming.
Key Tip: Store your key code separately from your keys
Key Fob Issues
Common causes: dead battery (most common), water damage, internal circuit damage, or the fob lost synchronization with your car. Try replacing the battery first. If that doesn't help, the fob may need reprogramming or replacement.
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1) Find the seam and pry open the fob (some have tiny screws) 2) Note battery orientation 3) Remove old battery (CR2032 is most common) 4) Insert new battery 5) Reassemble. Test all buttons - if issues remain, the fob may need reprogramming.
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