The only thing I would add would be to check the 12v battery, and re-grease the hood release mechanism. Since you do not have to do maintenance, the latch can become stuck from lack of use.... It happened to me!! Once I could not open the hood..
I have this issue currently. not sure what happened but the cable moves freely and does not unlock or release the hood. I have tried everything.
2014 SV Cayenne Red with LED and QC port