Unlock the Door Kia Optima with Dead Battery
Reviewed/Verified by:
Need to unlock the door of your Kia with a dead key fob battery? By following the procedures below, you will learn how to unlock your Kia Optima’s door. This guide is a step-by-step instruction on manually unlocking the 2016 to 2020 Kia Optima door.
At a Glance
- Fits: 2016 to 2020 Kia Optima with a smart key.
- Release the metal key from the fob.
- Pull the handle and use the key to pop off the cover hiding the lock cylinder.
- Unlock, open the door; the alarm may sound until the engine starts.
- To start with a dead fob: brake on, press the START button with the key fob itself.
What you will need
- Vehicle’s Key Fob
Procedure
- Go to the driver’s door and locate the hole under the right side of the door handle.
- Pull the door handle and push the metal key into the hole to remove the cover of the door handle.
- Once the door handle cover is removed, insert the key into the lock and twist it to unlock the vehicle.
- Open the door.
- Reinstall the cover. Pull the door handle and push the cover back to the door.
Frequently Asked Questions
How do I unlock my Kia Optima with a dead key fob?
Slide out the metal key from the fob, pull the driver’s door handle, pop off the small cover hiding the lock cylinder, and turn the key.
How do I start my Kia Optima with a dead key fob?
Press the brake and push the START button using the key fob itself. The car can read the fob chip even with a dead battery.
🔧 Find out what is actually wrong before you pay someone to guess
Dealer level diagnostics at home with the YOUCANIC UCAN-II Pro.
- ✔ Covers most makes and models, including many luxury brands. Send us your VIN and we will confirm your car before you order
- ✔ Reads every module, not just the engine, so you find the faults a basic reader says are not there
- ✔ Commands the car: test a fan or pump, bleed ABS, retract an electronic parking brake, register a battery
- ✔ No subscriptions. Free lifetime updates, so the price you pay is the whole price
- ✔ Backed by real mechanics in the USA you can email before and after you buy
Featured in The Wall Street Journal
What battery does the Kia Optima smart key use?
Most use a CR2032 coin battery. Check the old battery before buying.
Check these troubleshooting and repair guides for more help on your Kia.
