If one unlocks the car using the phone app, and then sits (key FOB on them) and starts the car, the car will start but will not go into drive. One should step out, lock the car, unlock using the KeyFOB or the door latch, and then drive away.

Was you case as above or it is something else.

 

I will try that next time it happens, hopefully it won’t happen again. I found another thread on the forum and my problem is referred to as “Zombie Mode“. Thanks for the suggestion.

 

Ive had this and from what I can tell there are three "modes" Accessory mode, On Mode and Drive Mode.
So basically if you press the start button but your foot isn't on the brake. You will be in "On Mode" where its kinda running everything but you won't be able to shift out of park. It might drop you into Neutral though and then you have to put it back in park and then turn the Car off and on again. I've had this all happen more than a dozen times. Its annoying.

 

Yea, if the car is in Accessory mode, it should go into Drive mode if you shift to Drive or Reverse.

 

No. Accessory mode is when you press the start button without pushing the brake. The infotainment and instrument cluster will turn on but car won't go into drive and red battery will appear.

Next time you have this problem. Open the driver's door and press Start/Stop to turn the car off. The screens will turn off. Close the driver's door, press and hold brake pedal then press Start to go to ON/Ready and now you can drive.

Reason for why I say to open the driver's door, is because you may have the setting for the infotainment to stay on when turning the car off. This can confuse you and not know what mode it's in. With the door open pressing stop will turn everything off.

 

Very good advice. The first time i was charging at a high speed charger I unplugged (the car was on) and I tried to go into drive, no luck, power cycle - good.

The other VERY odd behavior I've noticed is if you unlock and enter from the passenger side the screens stay on and it's very very strange.

 

Also check that you have unplugged the car from the charger.

 

I have a Hyundai Kona 2024 which starts with the key fob and reads must have key present to start push start worn work I also tried switching to my key fob niether resolved the problem any suggestions please and thanks

 

I'd start by replacing the fob batteries. Then I'd look at the health of the 12V battery.

Both are cheap and easy, which is where I like to start troubleshooting.

After that, I'd then take it back to a dealer that does a lot of Kona work. You should still be under the bumper-to-bumper warranty.