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Service bulletin No. 17-20

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10180560
Published by NHTSA2020-10-01
Manufacturer's numberNo. 17-20
Manufacturer's date2020-09-30
NHTSA componentELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); ENGINE AND ENGINE COOLING:COOLING SYSTEM; ELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

Service campaign information on Porsche Workshop Campaign WKK5 Workshop campaign - Re-programming air conditioning and high-voltage battery control units.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Driver assistance, Electrical system, Engine, 12-volt battery, Cooling system, Software

Vehicles listed
PORSCHE PANAMERA S E-HYBRID2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
PNM942-102021-06-28. Service bulletin. Porsche Rear Seat Entertainment (PRSE III) Display Unit Replacement. The software in the new display unit is either V02.000 or V02.009. The previous software version was V01.xxx. A USB stick is enclosed with the new display unit. Use the USB stick to update V01.xxx of the other display unit to version V02.000. It is not possible to update software version V01.xxx and V02.000 Replacing display unit.
No. 139-202020-10-01. Service bulletin. Information on replacing the HV battery on the Panamera S E Hybrid.
PIWIS2001v2020-07-02. Service bulletin. Information on new PIWIS tester update 39.500.020 and .025.
No. 41-202020-07-01. Service bulletin. Instructions on how to perform a PVTS Software update in the event that a car will not start.
No. 20052020-06-02. Service bulletin. Information on new VCI cables available for purchase by dealers.
122-E7E4L-012020-01-04. Service bulletin. Porsche Intranet posting explaining the extended warranty for the electric cooling fan on 2014 Model Year Panamera vehicles.
122-D6B2X-092019-09-23. Service bulletin. Instructions for retrofitting Sport Plus Mode on vehciles without sport chrono package already installed.
122-T4M9P-092019-09-23. Service bulletin. Instructions for retrofitting Sport Plus Mode on vehciles without sport chrono package already installed.
122-H5U6B-062019-06-24. Service bulletin. Technical Bulletin detailing new Special Tool, Flexray Vehicle Network Tester, which is now a required tool to communicate with the vehicles modules and the Porsche in-house tester known as the PIWIS Tester III.
122-P6P7K-102017-11-08. Service bulletin. There is increased friction in the air spring compressor valves at temperatures below ?13° F (?25° C). This can result in a situation in which the maximum control current is not sufficient to actuate the valves. As a result, a warning message will be displayed in the instrument cluster and Porsche Active Suspension Management (PASM) will stop working temporarily. Re-program PASM control unit using the PIWIS Tester with software version 33.010.030 (PIWIS Tester 3) or version 17.100.030 (PIWIS Tester II) or a higher software version installed.