https://static.nhtsa.gov/odi/tsbs/2026/MC-11028547-0001.pdf
Six possible repair steps, depending on which one works:
Hard reset of external communication control unit is removing its internal battery for 15 minutes.
TSB mentions the following ecus:
--external communication control unit...
Porsche starts production of the Cayenne Electric and strengthens battery expertise
Battery modules developed in-house: Thanks to fully in-house development and production, Porsche delivers maximum performance, efficiency, and quality – Made in Europe.
113 kWh battery for a range of over 600...
Intelligent charging functions for electric vehicles
Porsche Engineering has extensive expertise in the development and validation of HV charging management systems.
This enables vehicle manufacturers to enter the market quickly and cost-effectively.
Intelligent charging planning always uses...
How Taycan HV battery repairs are currently handled by my dealer:
--Dealer service has technician who is trained/approved to replace HV battery modules without needing a fly-in Porsche battery doctor to be present.
--Taycans with electrical warning errors and other problems which are diagnosed...