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Errors after flat battery


PCGB Member
Hi, I’ve had an almost flat battery on my 991.2 targa which I’ve been able to resurrect with a Cytek charger.
However I’m getting several errors including indicators/paddle shifts/ steering wheel functions not working, auto lights not coming on, PSM not working , only rear wheel drive as well as some others.
Is there anything that I can do to “reboot “ the system or similar or should it have to go to Porsche ?

It may just be that the battery isn’t fully charged, and these modern cars need it to be in tip-top condition to avoid the display lighting up like a Christmas tree!

The CTEK is a battery conditioner, not a charger, and you may need to use a proper battery charger to get the job done. Maybe a decent drive will be sufficient, but sometimes the battery doesn’t recover fully after a full discharge and quite often a new battery could be needed. A reputable battery supplier will be able to check-out the battery, often FOC, and will be able to advise you.

Thanks Jeff. I’m going to take it on an hours run to see if that will help . Failing that I’ll take it to an independent Porsche place.

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