Sometimes I like to sit and listen to the radio or finish a song before I turn it off. Technically speaking though, I’m not aware of any problems it could cause and I have on occasion turned off my Ioniq 5 before putting it in park.
Never thought of it before, but now I’m curious too!

 

No need to turn to P. As you indicated it automatically engages park. (Yes this has been argued in past threads)

 

I just tap the power button. I'd probably have to futz around searching for the parking brake control as I have no muscle memory for it: I haven't manually engaged or disengaged the parking brake since they did the update that automatically set it on power down and released it when you shift out of park.

 

It's perfectly acceptable to do this, but not advisable to become habit.

However, on inclines and declines, to prevent strain on the transmission's parking pawl locking mechanism, please park correctly.
This should become a habit to avoid bypassing park.
1. Bring the vehicle to a complete stop using the foot brake.
2. While firmly holding the foot brake, shift to neutral.
3. Continue holding the foot brake while shifting to neutral.
4. Engage the parking brake.
5. Release the foot brake.
6. If parked on an incline or decline, you may feel slight rocking (movement).
7. Push the transmission stalk into Park.
8. Turn off your vehicle power.
E-GMP propulsion units have additional redundancy besides using parking brakes. We use pawl mechanism ( Google search will help you understand) as secondary redundancy.
Vehicles like Tesla and VW electric vehicles do not use secondary redundancy and they don't have pawl mechanism.
So in case of Tesla or VW electric vehicles if parking brake failed to keep tires locked, it may cause damage or injury to the driver.
Why they do this?
Getting it cheaper, less weight.
And making it more dangerous as parking system wears out or malfunction, is thing that I would love to have debate with this engineering team and why they skipped pawl mechanism.

 

If you hold the brake while shifting to park, and that automatically engages the parking brake, and only remove your foot from the brake pedal after park and parking brake are engaged, doesn't that protect the pawl from the strain?

 

I have gotten in the habit of pressing P before the power button. I have cultivated this habit, because I have changed the auto-unlock settings of my car. I have set it up so that "Park button" unlocks all doors. I can't remember, what the other/default option for auto-unlock are, but this seems to work for me, and I also know that if I need to open doors, I can do that by pressing P, and also the doors will stay locked until I press the button.

 

You are correct that the auto unlock behaves differently going to P vs OFF. One way all doors unlock and the other only the drivers door.

 

I press the P on the stalk when coming to a halt. But hold the brake pedal on at the same time. I do realise that this uses the locking pawl to prevent further movement, rather than the physical brakes, but I plead a greater need at the time.

This habit developed because many such halts also involve a charging session at home, and I use voice control to open the charging door. That voice action doesn't work if the car isn't in park. I do know the 'correct' sequence, as explained by @EVmastertech in post #5 above, but the time taken to go through his stage 1 to stage 7 out of the 8 stages would be too long and ponderous.

After pressing Park on the stalk I then press the voice activate button and ask her to open the charge door, at the same time I am removing the seat belt and parking my driving specs in the holder on the magnetic panel. Only then do I switch the car off, which activates the physical brakes.

I do know that this is not the correct process 'by the book' and I do realise that technically it is loading the pawl mechanism incorrectly if on a slope. But in my defence I always firmly hold the brake pedal after a stop to engage the 'hold' feature, and only press P once all motion has stopped. The slight bobble is just the pawl settling into the nearest slot and not really any huge physical stress.

Perhaps if most stops didn't involve a charge session I would use the 'text book' stages 1 through 8 but at present there are far too many actions taking place, including my voice/belt/specs actions, inside the same few seconds, for a mere male to carry out. Multitasking has never been my forté.

 

I do that all the time

 

I don't think it's a problem at all on the I5. The problem arises when I then do this on my Volt when the car is still in Drive or Reverse - it screams at me!

 

I use P first because the Garage Door control on my rearview won’t work unless my Ioniq6 is powered up.

 

For coming home? I use the garage door button on the rearview mirror about 1/2 block down the street when coming home. Door is then pretty much fully open as I pull into the driveway.