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Service bulletin No. 148-21

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 id10208612
Published by NHTSA2022-03-03
Manufacturer's numberNo. 148-21
Manufacturer's date2022-02-11
NHTSA componentELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE

NHTSA's summary

Technical information for recall campaign AMC0. re-programing DME and transmission 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, Transmission and driveline, Automatic transmission, Software, Transmission control module

Vehicles listed
PORSCHE 718 BOXSTER2016
PORSCHE 718 CAYMAN2016
PORSCHE 9112012, 2013, 2014, 2015, 2016
PORSCHE BOXSTER2012, 2013, 2014, 2015
PORSCHE CAYMAN2012, 2013, 2014, 2015

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
PIWIS2401j2024-03-04. Service bulletin. Information for PIWIS tester update 42.500.020
PIWIS2301ay2023-09-09. Service bulletin. Information on PIWIS tester update 42.100.060 & .065
APA02023-06-06. Service bulletin. Porsche intranet posting with information on APA0 Recall campaign – Re-programming DME control unit and transmission control unit
No. 24-212022-04-05. Service bulletin. Installation and conversion instructions for the PCM3.1 - Navigation Update.
9912133-152021-06-28. Service bulletin. WF86 - Re-Programming DME Control Unit (Workshop Campaign)
No. 20202020-10-01. Service bulletin. Information on new special tool for offline updates of the PCM Versions 4 and 5.
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.
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.