Key fob won’t start my car, I have to put the fob in the “fob slot”🤔 I have changed the battery.

[Genesis20114.6]

My 2011 4.6 key fob will not open either door.
It won’t open if I push the fob or push the button on the door. I have to take the key out of the fob and manually open the door that way.
ALSO I can only start the car by putting the fob in the “fob slot” inside the car by the push to start button. I have changed the battery. What can I do to fix this problem? thank you for reading my problem

 

[bemare]

What I would suggest is to make sure the battery is not reverse and use an ENERGIZER battery 2032 only from target. Do not buy online to make sure is authentic had problem with online battery on my 2009 4.6 genesis fob.

 

[Genesis20114.6]

What I would suggest is to make sure the battery is not reverse and use an ENERGIZER battery 2032 only from target. Do not buy online to make sure is authentic had problem with online battery on my 2009 4.6 genesis fob.

Appreciate the response. I went to the Genesis dealer and got the battery. But I will go by an energizer battery from target.

 

[mikec]

Does the other fob work? If not, the issue isn't fobs or batteries but is instead an issue with the transceiver electronics in the car that talk to the fobs. That requires a dealer trip most likely.

The dash slot uses a different transceiver and method to talk to the fob; it's method is similar to how badge readers, tap-to-pay credit cards, and "pay at the pump" gizmos work. A type of near field communications where the reader provides a low level magnetic field that can be used to send power the badge/key/etc. It's that magnetic field that lets a fob with a dead battery still start the car.

mike c.

 

[bemare]

It took me three years to figure it out why one of the fob keep stopping and I read an article that he use the energizer or duracell on his fob to last longer not a genesis. I bought the energizer at target to try it out, what do I have to loss for trying. It worked and last a long time and two years ago one died not sure if it is the same one but both of them are working as of today and dependable that I don't have to pull the key and plug it in the slot. Electronic is sometimes a pain to each its own same fob but one is finickey.

 

[Genesis20114.6]

Does the other fob work? If not, the issue isn't fobs or batteries but is instead an issue with the transceiver electronics in the car that talk to the fobs. That requires a dealer trip most likely.

The dash slot uses a different transceiver and method to talk to the fob; it's method is similar to how badge readers, tap-to-pay credit cards, and "pay at the pump" gizmos work. A type of near field communications where the reader provides a low level magnetic field that can be used to send power the badge/key/etc. It's that magnetic field that lets a fob with a dead battery still start the car.

mike c.

What do you think about changing the fuses? Would that have anything to do with it?

 

[Genesis20114.6]

What do you think about changing the fuses? Would that have anything to do with it?

I don’t have another fob.

 

[Gunkk]

Every single time I have had a fob not work, it was the battery.

I have installed batteries upside down.

I have installed dead brand new batteries.

I have put the fob through the wash.

I have installed two dead brand new batteries in a row. Yes, two.

It has always been the battery.

Every.

Single.

Time.

 

[Genesis20114.6]

Every single time I have had a fob not work, it was the battery.

I have installed batteries upside down.

I have installed dead brand new batteries.

I have put the fob through the wash.

I have installed two dead brand new batteries in a row. Yes, two.

It has always been the battery.

Every.

Single.

Time.

Thank you for your thoughts. 2 out of the 3 replies have said it’s the battery. The new batteries I put in don’t seem to last that long then. I’ll get a new (not the dealer) battery

 

[Ekring67]

Same problem, frequently having issues. Sometimes I need to tap the fob on a hard sruface and it works for a few days. Hard to believe its the battery every single time. I think there is an issue with the circuitry in the fob, IMO.

______________________________

Help support this site so it can continue supporting you!

 

[Genesis20114.6]

Same problem, frequently having issues. Sometimes I need to tap the fob on a hard sruface and it works for a few days. Hard to believe its the battery every single time. I think there is an issue with the circuitry in the fob, IMO.

I just bought another battery from the dealer after all. Of course it’s working now
The dealer told me a new fob was $647 and to
Reprogram would be $200 after they did a analysis for $200

 

[mikec]

A friend recently bought a used Hyundai Ionic 5 from Carvana; that car had only 1 fob. The Carvana person suggested Costco - they have a traveling group that can make fobs for most vehicle makes/models. And the cost is MUCH less than dealer cost.

It is also common for the battery contacts in the fob to loose their "springiness" and not grip the battery properly. That's when smacking the fob helps. Take the battery out and gently bend the ears a bit so they push on the battery harder. If that doesn't help, then a solder joint inside the fob is likely bad. That's an easy fix for somebody that can solder electronic stuff (not the same as plumbing soldering).

mike c.