Key Genius

Car Keys Express

About this app

The Key Genius plugs into your vehicle’s diagnostic port and lets you easily “pair” new car keys using an app on your phone. The “do-it-yourself” installer is compatible with thousands of vehicle models. Skip the dealership, add new keys to your car at home.

Just purchase a new key and get it cut at a hardware store, locksmith, or dealership—or order one from CarKeysExpress.com/store and have it shipped pre-cut and ready for pairing.

Ratings and reviews

Update: Only paired key fobs that were previously linked to the vehicle. Sole owner of the car from factory, with the 2 original key fobs. Was only able to pair one of the fobs at a time. To pair both fobs you have to select add 2 in the app menu and then I followed the remote button press sequence on the key fob not in the ignition and then the on the one that was, without removing it or turning the ignition to the off position. I hope this helps because the directions didn't explain that.

The app continued to crash the first week and then was fixed the next time we tried it. Worked as expected. Very easy. Complaints about only being for one vehicle are unwarranted. Description was clear about this fact and it still saves a ton of money if you need more than one key made over the lifetime of the vehicle. The convenience is worth the price alone.

Keeps telling me that I have 8 keys paired to the vehicle. I haven't been able to pair one as it does not give you the option to change the number of keys to be paired. This is the second one that I received.