Keyless Entry

[Crazymind]

Sounds like your key was broken then. Wild to assume that everyone has this problem - nobody except you does here.

I didn't change the key batteries even once in the year I owned the last car.

it’s because you didn’t yet have the problem.
In this forum there is plenty of discussion about the reliability of the keyless entry.
It all starts with inconsistency. It doesn’t unlock automatically when you approach the car with the key in your pocket. Sometimes works other not untill you press the button.
Next step is the comfort access is lost after software update… porsche need to re-activate it. Next step is the signal is not recognised. You need the spare key. After the spare key is lost need recording both keys. My saga stopped there and I have bought a new Taycan.
For many it will start just with keyless not always recognised. It can stay like that for a long time and never go to the next step.
it is widespread and documented in this forum as well. MY 22 and 23 most affected and Porsche released as well an advanced tecnical info bulletin for comfort access issues.
I am now glad not to have comfort access anymore in my 2025 Jen 1.2.

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[prj]

it is widespread and documented in this forum as well. MY 22 and 23 most affected and Porsche released as well an advanced tecnical info bulletin for comfort access issues.

As said, my MY22 never had any issues with keyless entry.
Sometimes it didn't turn the ignition on when it was with the same pocket with other metal keys, other pocket it worked fine, that's it.

I am now glad not to have comfort access anymore in my 2025 Jen 1.2.

And this shows your complete ignorance on the subject.

Every single Porsche Taycan has comfort access, the hardware is the same on all of them. Whether it is enabled or not is just a coding value or can be enabled via FoD:

The reason some people are losing it, is because it was most likely either coded by someone with PIWIS Engineering after the fact or enabled by FoD and for some reason the car lost the FoD codes after the update.

So if you think not taking it you're going to have any fewer issues you're dead wrong as the hardware and software is identical. The keys and everything else works exactly the same, and the reason it doesn't unlock the car automatically is simply because there's a checkbox from FoD telling it not to.

In fact it checks two things - whether the function is released by FoD and whether it is activated in the PCM. So you can have the same exact behavior by just disabling it in the PCM on a car with it. Newsflash - it won't solve any of your issues or reduce your key battery drain.

 

[Crazymind]

That’s not correct. Comfort Access enabled and Comfort Access hardware present but FoD-disabled are not the same state.
With FoD released, the system runs active proximity polling, keeps exterior antennas in a higher wake cycle, and regularly queries the key.
If FoD is not released, the software changes power-management logic: polling is reduced or disabled and antenna wake-ups are suppressed.
Disabling Comfort Access only in the PCM does not replicate an FoD-disabled vehicle. The function remains present in the backend and continues background activity.Same hardware ≠ same runtime behaviour. FoD state directly controls polling and wake logic, not just the unlock checkbox.

 

[prj]

That’s not correct. Comfort Access enabled and Comfort Access hardware present but FoD-disabled are not the same state.
With FoD released, the system runs active proximity polling, keeps exterior antennas in a higher wake cycle, and regularly queries the key.
If FoD is not released, the software changes power-management logic: polling is reduced or disabled and antenna wake-ups are suppressed.
Disabling Comfort Access only in the PCM does not replicate an FoD-disabled vehicle. The function remains present in the backend and continues background activity.Same hardware ≠ same runtime behaviour. FoD state directly controls polling and wake logic, not just the unlock checkbox.

This is ChatGPT and has no basis in reality, I'm not going to entertain your BS.

 

[Crazymind]

You are classy sir. Have a good day.

 

[W1NGE]

Just interesting because It's the same with BMWs and Audis I follow. Common sentiment is there's more concern with cars being stolen that way. Or at least, most of the people that I see saying they don't want the option will say that's the reason.

The issue is that people store their keys too close to the car and as the key periodically.attemtps to communicate or can.be stimulated to communicate by thieves with appropriate scanning equipment can be skimmed.

Simple solution - store the keys in a Faraday pouch, safe or further away from the car to prevent the chance of skimming.

All car brands are prone to this but some have keyfobs which go to sleep and therefore makes it harder.

 

[W1NGE]

it’s because you didn’t yet have the problem.
In this forum there is plenty of discussion about the reliability of the keyless entry.
It all starts with inconsistency. It doesn’t unlock automatically when you approach the car with the key in your pocket. Sometimes works other not untill you press the button.
Next step is the comfort access is lost after software update… porsche need to re-activate it. Next step is the signal is not recognised. You need the spare key. After the spare key is lost need recording both keys. My saga stopped there and I have bought a new Taycan.
For many it will start just with keyless not always recognised. It can stay like that for a long time and never go to the next step.
it is widespread and documented in this forum as well. MY 22 and 23 most affected and Porsche released as well an advanced tecnical info bulletin for comfort access issues.
I am now glad not to have comfort access anymore in my 2025 Jen 1.2.

Hmm. Nope and I can't in all honesty agree. Mine was flawless as it is with my 911.

Some folk don't know how to configure it properly as that requires to read the manual.

Battery drain of the keyfob battery which several folk have had is due to proximity 9/10.

Comfort Access (or whatever it is called) will be de facto before too long across the range. More advantages than disadvantages IMHO.

 

[gnr3312]

I like Comfort Access and have seen it work well when I get close to the car, and the keyfob blinks red around the Porsche crest to indicate connectivity. What I’m having issues with is the locking with the touch button on the handle. My guess is that Comfort Access is overriding pressing the button to lock the car from the outside, so at the moment I’m using the fob to lock it but not sure if I’m going to keep it enabled or not.

 

[M3Taycan]

Yes, they could be stolen using repeaters.
People would leave keys by the house door, one bad guy would be in the car with one retransmitter and another guy would be by the door with the other retransmitter.
Since the keys relied purely on the weakness of the signal to not work at a far distance, these signal boosters allowed you to start the car like that.

It's fixed in the new cars though.
The solution was to have accelerometers inside the keys and when the key is stationary for an X amount of time it just turns itself off until it's moved again. Rendering this attack completely useless.

Now, in theory someone could still steal your car while you're out and about or something, but that's a lot harder - arguably it's easier for the criminal to just bash your face in (or threaten to) and take your key rather than do this whole high tech thing. So I don't think that cars with these protection measures in place are at any higher risk of getting stolen compared to those without keyless entry.

Yep! Technology is improving, and the theft industry is moving into high tech, too.

I use a Faraday bag to store my Taycan key fob. I take the key fob out when I need it, then put it back when I’m done. I generally avoid pressing the key fob to unlock the Taycan when I’m not at home. When I am at home, the Taycan is kept in the garage, but I never lock it.

I recently this year I had a visitor standing near my garage with a device that scans for key fob signals, but they were unable to activate the Taycan car’s doors, frunk, or trunk. They were able to open other cars on the street, empty the car of its items, but were not able to start it and drive away.

A few neighbors purchased Faraday bags to eliminate the relay scan.

 

[whitex]

Nonsense. I've got it. Taycan is 3 years old as are the batteries in my key.

Same here. 3 years old, model year 2023. I think I might have changed the fob battery once, but cannot be certain. One thing worth noting, I turned off the auto-presenting of the handles when fob in vicinity, but they still present when I touch them, and the foot motion for the trunk works.

 

[whitex]

it’s because you didn’t yet have the problem.
In this forum there is plenty of discussion about the reliability of the keyless entry.
It all starts with inconsistency. It doesn’t unlock automatically when you approach the car with the key in your pocket. Sometimes works other not untill you press the button.
Next step is the comfort access is lost after software update… porsche need to re-activate it. Next step is the signal is not recognised. You need the spare key. After the spare key is lost need recording both keys. My saga stopped there and I have bought a new Taycan.
For many it will start just with keyless not always recognised. It can stay like that for a long time and never go to the next step.
it is widespread and documented in this forum as well. MY 22 and 23 most affected and Porsche released as well an advanced tecnical info bulletin for comfort access issues.
I am now glad not to have comfort access anymore in my 2025 Jen 1.2.

Your symptoms sound like a bad keyfob.

 

[sufcrusher]

It is an option as per all Porsches and is called Comfort Entry / Porsche Entry.

If not optioned then unlikely to be retro fitted as there is additional hardware added to the boot / tailgate - close / close and lock and a sensor for foot gesture operation. Can't be retro fitted.

I had it not optioned in my 21 S4, but after one of the many software updates it suddenly started working (foot gesture to open boot etc.). I never had the close+lock button on the boot lid though.

May have been me being "lucky". I'd like to think it was a tiny bit of compensation for all the beta testing i did for Porsche.

 

[Jasper4S]

Most got it for free because of the chip shortage. The electric adjustable steering wheel was not present on trims lower than GTS (RWD, 4, and 4S), and to make that up, they enabled the FoD Comfort Access.

 

[Sace]

I had it not optioned in my 21 S4, but after one of the many software updates it suddenly started working (foot gesture to open boot etc.). I never had the close+lock button on the boot lid though.

May have been me being "lucky". I'd like to think it was a tiny bit of compensation for all the beta testing i did for Porsche.

The hardware is present in all J1.1 cars as it can be enabled with FoD. Not sure if it has changed since J1.2 does not have FoD.

Mine also had it active since day one without being optioned with it.

I have changed battery once in each key in the three years I have had the car.

 

[W1NGE]

I like Comfort Access and have seen it work well when I get close to the car, and the keyfob blinks red around the Porsche crest to indicate connectivity. What I’m having issues with is the locking with the touch button on the handle. My guess is that Comfort Access is overriding pressing the button to lock the car from the outside, so at the moment I’m using the fob to lock it but not sure if I’m going to keep it enabled or not.

That shouldn't be the case and possibly due to how you are using it. Try with the key in your pocket, touch with index finger and walk away.

I think the system was upgraded on J1.2 Taycans where automatic walkaway locking was added.

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