In summary: it’s not us, it’s them (3rd party apps)

3rd party apps don’t brick other EVs but somehow they have targeted Hyundai for special treatment 🤣

More BS. It shouldn’t matter what causes the power drain, as soon as the 12V drops below a certain voltage it should trigger a recharge. If the 12V fitted can’t handle this over an extended period (like Tesla’s original MS 12V couldn’t) then fit one which can (as Tesla did).

 

It shouldn’t matter what causes the power drain, as soon as the 12V drops below a certain voltage it should trigger a recharge. If the 12V fitted can’t handle this over an extended period (like Tesla’s original MS 12V couldn’t) then fit one which can (as Tesla did).

It is not that simple (and plenty of other EVs have similar 12v problems). The main HV battery does top up the 12v if the SOC of the 12v drops below a set level. However, if this occurs too frequently this action is halted in case there is another fault. The other constraints are shown in the attached.

 

That is worse than I thought.

Who knew that leaving the traction battery at < 35% could brick the whole car. We know the 12V can drain within a matter of days if not hours.

We know from experience that the charging flap controller fault was causing flat 12Vs. I wonder why Hyundai thought it was better to brick the car when the 12V is draining too quickly than to raise a mandatory service flag.

 

Not sure if it is still 35% as I think when I last checked my car was still charging the 12v when the car was between 35% and 20%.
My 12v does not drain ‘quickly” and if your is draining in a ‘matteer of hours’ you have an excess load on the 12v. I have left my car for 3 to 4 weeks with no issues.

 

I guess the SoC was more than the threshold when you left it for 3 weeks?

“Matter of hours” was with the charge port issue, where it was stopping the car from going into deep sleep. After a while the car decides to stop charging the 12V battery. In my view, any fault that creates this condition should be handled as a service issue rather than killing the 12V - worse case is the traction battery drains quicker than usual.

 

Yes It would have been.

 

Limiting the blue link app to 20 requests, if I understood that right, is a pretty shitty

 

Why? What do you use it for so frequently?