Porsche Cayenne 2014–2017 — technical service bulletin

Bulletin 122-Z6W8C-07 · NHTSA communication 10120792 · issued Jun 27, 2017

Technical service bulletin

communication type

Electrical System

component

2014–2017

model years

vehicle entries

Official summary

Subject: Discharge protection function of the batterymanagement system(BMS) in order to extend the service life of high-voltage and low-voltage batteries

Vehicles covered

2014 Porsche Cayenne
2015 Porsche Cayenne S E-Hybrid
2016 Porsche Cayenne S E-Hybrid
2017 Porsche Cayenne S E-Hybrid
2016 Porsche Panamera
2017 Porsche Panamera
2014 Porsche Panamera S E-Hybrid
2015 Porsche Panamera S E-Hybrid

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.