Why is the keyless entry not working in my Kia Ceed?

I recently bought a Kia Ceed and the keyless entry is not working properly. I can't lock or unlock my car using the keyless remote. What could be causing this issue and how can I fix it?

It could be an issue with the battery in your keyless remote. Try replacing the battery and see if that resolves the issue.

There could also be interference from other electronic devices. Try holding the keyless remote close to the car's door handle and see if it works.

If neither of those solutions work, there may be an issue with the car's keyless entry system itself. It's best to take it to a Kia dealership for professional assistance.