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Service bulletin No. 26-21

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 id10208613
Published by NHTSA2022-03-03
Manufacturer's numberNo. 26-21
Manufacturer's date2022-02-11
NHTSA componentELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT

NHTSA's summary

Technical information for recall campaign WMB2 - checking screws on component protection on high-voltage battery and reworking them if necessary.

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, 12-volt battery

Vehicles listed
PORSCHE TAYCAN2020, 2021

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
No. 31-202024-03-04. Service bulletin. Technical information for a diagnosis and handling of 12 volt lithium ion battery
No. 90-232023-09-08. Service bulletin. Technical information on WNW3 - check high-voltage battery and replace if necessary
No. 22012022-03-04. Service bulletin. Special tools information for T90024 to T90024B Supersession-Swapout
No. 2109.12022-01-04. Service bulletin. Instructions on advanced technical information for critical 12V Li-ion battery recycling for the 911, Cayenne, Taycan, and 918 Spyder.
No. 20092020-07-01. Service bulletin. Information on approved In-Ground Lifts for use with the Taycan