Replaced my Hyundai Sonata 2019 key... locks aren't responding?

Hyundai Cars and Models Forum Hyundai Sonata
1

Hey, I just replaced the key for my 2019 Hyundai Sonata. I kept the old key blade, but the doors don’t respond when I try to lock/unlock with the new key fob. Any idea if it’s a fuse or something? Manual locks still work though. Appreciate any help!

2

Sounds like a programming issue with the new key fob. Did you check if the transponder chip is inside the new housing?

3

GenesisGuruOnline said:
Sounds like a programming issue with the new key fob. Did you check if the transponder chip is inside the new housing?

Hmm, I didn’t even think about the chip. I just swapped the key blade. I’ll open it up and check, thanks!

4

@Arthur
No problem! Make sure the chip is in there. If that doesn’t work, it might just need to be reprogrammed.

5

Had the same issue. My new key fob needed reprogramming. You can try to sync it yourself or just take it to the dealership.

6

Washington said:
Had the same issue. My new key fob needed reprogramming. You can try to sync it yourself or just take it to the dealership.

Thanks! I’ll give it a shot. I hope I don’t have to go to the dealership for this.

7

Check the fob’s battery too. Mine wasn’t working after I replaced the key, and it turned out the battery was dead.

8

klausmark2 said:
Check the fob’s battery too. Mine wasn’t working after I replaced the key, and it turned out the battery was dead.

Good call. I’ll check the battery as well!

9

If the manual locks work, I doubt it’s a fuse. Sounds more like the key fob or something with the programming.

10

Nadia said:
If the manual locks work, I doubt it’s a fuse. Sounds more like the key fob or something with the programming.

Yeah, the manual locks are fine, just the remote isn’t working. Hopefully it’s just a reprogramming issue.

11

I had to re-sync my fob after replacing the housing. There’s a trick where you turn the ignition on and hit the lock button. Worth a try before hitting up the dealership.

12

MarkJones said:
I had to re-sync my fob after replacing the housing. There’s a trick where you turn the ignition on and hit the lock button. Worth a try before hitting up the dealership.

That’s exactly what I needed! Just programmed it and it works now. Thanks so much!