Porsche just needs to give up on any advanced software features

[whitex]

So... Charging schedule has been fixed even with J1.2.

You really don't know that. How do you know a 3.5 year old J1.2 will not do exactly what my Taycan just did - completely ignore the settings entered by the user and just charge to 100% instead? I understand that they significantly improved the UX so it's much easier for an average user to understand, but the clusterfuck UX is not my issue here, it's the fact that the the car doesn't do what it says it will (and has done based on the same settings for 3.5 years).

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[TehPenguin]

So... Charging schedule has been fixed even with J1.2. They also went a step forward and set a industry standard; info how much power can battery take if connected to the charger . I'm not getting a car without that ever again. I know when the charger is broken and when it's the car.

MY2027 gets a predconditioning button. At least that's what the screenshots suggest. I couldn't care less, but obviously we are all different.

Software in Cayenne is a whole new generation. Taycan MY2027 is getting that stack. It's not identical, as the screens are different, but judging by the screenshots and description, it's the new stack from Cayenne. Widgets, OTA (well, they claim so...), less menu levels, apps...

It is not an SDV still. There are pros and cons to that.

You don't want the PPE stack: go look what the Macan EV and Audi Q6/A6 owners are dealing with...

The MY27 Taycan isn't switching to PPE, it's just getting a refreshed PCM.

We also have no idea how VWAG is going to unify MEB+ (the Rivian stack) with PPE. They've dumped a ton of money into both and there's a lot of internal and inter-company political factors to consider (how many changes is Rivian willing to accept? Are you going to leave the current PPE customers behind?)

Personally, I'm jumping ship to the AMG GT when it arrives. Yeah, the looks are... questionable... but AMG seems to have the power train and software side of things buttoned up.

 

[questionmillennium]

Eventually, when these cars are completely out of warranty, you will start to see PCM upgrades, battery upgrades, etc. I saw a video recently from a guy who installed a new PCM into his 2011 Cayenne Turbo. He upgraded a bunch of other things as well. Eventually, we’ll see ways to upgrade your PCM to the latest software that hardware can safely handle. It won’t solve all the issues you guys are talking about, but it will help

 

[PorscheTaycan]

I set my profile to 80% and the car charges to 80%? Been doing this every night.

 

[Tooney]

@whitex In the past you charged to 85% using general profile.
Then you set one-time timer to charge to 100%.
Then you direct charged to 100%.
Then you deleted the timer, enabled general profile to 85%, and
then car charged to 100%?

Is that the sequence of events?

 

[MidwestPCar]

Do you charge to 100% every time now, or try to time and unplug it manually?

In my case, I never changed any settings at all, so whatever changed was either by Porsche over-the-air, or by Porsche software aging. Perhaps Porsche software has a half-life, gets worse as it ages (ever increasing storage fragmentation, mess of saved states/logs/caches, or perhaps other ECUs get updated creating an impossible number of ECU versions combinations to possibly be able to test before releasing a new one).

It went back to Porsche to fix the same issue (windows getting stuck) for the 3rd time before a second charge. I'll know when I get my car back soon and charge the car again.

 

[EXOTIC3]

My car was just in for software updates 2020 turbo I got the car back and now it doesn’t recognize Apple CarPlay. The trips to the dealer are frustrating for minuscule things that should be OTA.

 

[snstevens]

I've had my Taycan for over 3 years now. Love driving it. I do on the back of my mind I always worry it will get me stranded somewhere unable to drive (electrical error), unable to charge (OBC failure, killing both AC and DC failures), or unable to heat/cool the cabin (heater and/or servos failure) - all of which I have experienced so far. However, I still cannot believe that after 7 years, Porsche software still cannot handle basic functionality without screwing up!

I went on a short road trip this past weekend, charged to 100% percent with a one-time timer, then to 100% using direct-charge while away from the house. Came back 4 days later, still only the same Generic profile (non-location-specific) set to optimized charging with min 85%, and no timers active, no direct charge active either. Then I get a notification, car charged to 100% for some reason. WTF? Why would it do this? I still have no idea, but hey, I'm not going to be driving the car for few days, so will find out later if it still charges to 100%, and the car gets to be charged to 100% for a few days - but hey, Porsche does give me an 8 year battery warranty, so really they are screwing themselves by keeping the car charged to 100%? No, I'm not going to have someone drive the SoC down, if Porsche was worried about this, they would have made the software work. Just for completeness, I've had the exact, unmodified same profile for over 3 years now on the very same EVSE at home, never had this issue, so this is something new (note, zero active timers). I'm actually tempted to just leave it, let the car charge to 100% daily despite me having set it to less, maybe it will degrade the battery before the 8 years is up so I can just claim a new one. I did my part, I set the car up correctly, it worked for 3.5 years, Porsche decided to deploy software to charge to 100% despite this, not my problem.

As a side note, Porsche navigation is just as lacking quality - when in poor cellular reception, it completely loses its location and ability to route. At one point it actually decided to reroute based on going crazy, told me to drive away from the destination, then 5 minutes later decided to turn me around via non-existing roads. I shut it off, did a u-turn, and used Waze to get me where I need to go. My bad for trying to use Porsche navigation somewhere where cellular signal is spotty (a scenario which evidently Porsche NEVER tests for, as it also creates issue like my car appearing to be in Privacy Mode, even though I have NEVER even once switched it to Privacy Mode since new) *sigh*

Come on Porsche, everyone knows you suck at software, so just admit it and give up! Give us a physical button to pre-heat the battery for DC charging, so we never have to use Porsche navigation again. Give us a very simple setting - a percentage I want the car to stop charging at, so we can just do it manually and never have to wonder how is Porsche software going to fuck up this time? Stop pretending you know what you're doing in the digital arena, stick to manual controls and great driving performance (and maybe PTS colors, accents, and deviated interiors for those willing to pay for them)!

</rant>

So I’m sure you already tried the Two-Finger reset and that didn’t work. However, did you try anything else?

How about resetting the PCM to Factory Settings and then testing the charging General Profile without logging into your My Porsche account? Did you consider disconnecting the 12V battery to assure a full reset?

Just curious since it seems like an inconsistency that could be cured by a reset.

P.S. I totally get why you are pissed off…

 

[voksic]

You don't want the PPE stack: go look what the Macan EV and Audi Q6/A6 owners are dealing with...

The MY27 Taycan isn't switching to PPE, it's just getting a refreshed PCM.

We also have no idea how VWAG is going to unify MEB+ (the Rivian stack) with PPE. They've dumped a ton of money into both and there's a lot of internal and inter-company political factors to consider (how many changes is Rivian willing to accept? Are you going to leave the current PPE customers behind?)

Personally, I'm jumping ship to the AMG GT when it arrives. Yeah, the looks are... questionable... but AMG seems to have the power train and software side of things buttoned up.

At no point did I suggest that it's switching to PPE. When I said PCM stack, I ment the whole OS, not just the UX/UI. The PCM looks and feels like Cayenne's. Just the software.

MEB+ has nothing to do with Rivian. I suspect software that will come out of Rivian partnership will land in SPP.

I had Macan for over a year and I had only minor issues for the first couple of months. After the update, Macan has been rock solid. Far for perfect, but in many ways better than Taycan's PCM.

 

[whitex]

@whitex In the past you charged to 85% using general profile.
Then you set one-time timer to charge to 100%.
Then you direct charged to 100%.
Then you deleted the timer, enabled general profile to 85%, and
then car charged to 100%?

Is that the sequence of events?

Close. Since pretty much new I had the following set:

• General profile, non-location-specific with 85% min and Optimized charging set
• Two "one-shot" pre-conditioning timers
  • first one set to 100% SoC and 69F
  • second one set to 85% SoC and 69F

The car always charged to 85% at home. I would occasionally set the date+time for departure time to pre-condition the car (the first one if going on a long trip, second one if I just wanted to pre-condition from shore power instead of battery). Whenever charging away from the house, I would occasionally use direct-charging to charge to 100% at a hotel (for example for the return trip).

This time was the same as many times in the past, I had a long trip ahead, I set the first timer to pre-condition the car, it worked as it did many times before. I DC charged on the trip, then when I was at the destination I enabled direct charging to charge to 100% overnight (arrived at 10% SoC, as planned) - took all night to get to 100% but it got there couple of hours before I drove it away. Car was then parked for the following couple of days. I sometimes top it off before departing on way home, but the charging spot was busy so left with around ~85% (this was also why I charged to 100% on arrival, as I noticed my usual charger was broken, so had to use one nearby instead). DC charged again on way home. Got home, made sure direct-charging was not set, and no timer was set, left it alone, yet it charged to 100% SoC somehow.

 

[whitex]

The problem might have resolved itself.

I enabled and then disabled direct-charging as well as both timers (while the car was at 100% SoC already). I then had the car unplugged and let pre-conditioning run for an hour and a bit, draining the battery to 98% SoC. Upon plugging the car back in, it did not start charging. It is still sitting at 98% as I write this (few hours later). I'm hoping it's because the car re-interpreted the profiles and timers again, and is back to normal (as opposed some other problem, like unable to charge because it blew another OBC for example).

 

[whitex]

So I’m sure you already tried the Two-Finger reset and that didn’t work. However, did you try anything else?

How about resetting the PCM to Factory Settings and then testing the charging General Profile without logging into your My Porsche account? Did you consider disconnecting the 12V battery to assure a full reset?

Just curious since it seems like an inconsistency that could be cured by a reset.

P.S. I totally get why you are pissed off…

Have not been near the car. I stopped doing 2-finger resets as they never seem to resolve anything. I might however have managed to resolve via the app (see above post #26). Still very annoying.

As a warning to others, Porsche navigation cannot handle driving around the Oregon coast (has some spotty cellular coverage along Hwy 101, which is an amazing windy drive for a Taycan). This is not the first time the car got completely lost in that area, I don't know why even bother with it (should have switched to Waze after DC charging, only use Porsche nav to navigate to DC chargers).

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