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Service bulletin No. 225-20.1

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 id10185118
Published by NHTSA2021-01-05
Manufacturer's numberNo. 225-20.1
Manufacturer's date2020-12-18
NHTSA componentELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; POWER TRAIN

NHTSA's summary

Porsche service campaign info for Workshop campaign WLP0 - Re-Programming PDK Control Unit.

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

Electrical system, Equipment and accessories, Labels and manuals, Transmission and driveline, Software

Vehicles listed
PORSCHE redundant BOXSTER2021
PORSCHE redundant CAYMAN2021

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