WenmarOpen by Wenmar Pro

Service bulletin No. 08-26

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 id11032389
Published by NHTSA2026-05-07
Manufacturer's numberNo. 08-26
Manufacturer's date2026-04-17
NHTSA componentENGINE

NHTSA's summary

Technical information for a Malfunction Indicator Light, Battery Voltage Fault on Catalytic Converter Heating Measure “P0D8500” in the DME 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

Engine

Trouble codes named

P0D85

Vehicles listed
PORSCHE 911 CARRERA 4 GTS2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 CARRERA GTS2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 CARRERA T2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 DAKAR2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 TURBO2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 TURBO S2021, 2022, 2023 (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
WSM52026-10-02. Service campaign. Porsche intranet posting for Campaign WSM5 – Replacing engine data sticker (VECI)
No. WSM52026-10-02. Service campaign. Technical Information for Campaign WSM5 – Replacing engine data sticker (VECI)
No. 91-262026-10-02. Service bulletin. Technical Information for Particles/Metal Chips/Residues in Engine Oil
No. 32-262026-10-02. Service bulletin. Manufacturer's Certificate for Overview of approved Porsche C40 GT engine oils
No. 31-262026-10-02. Service bulletin. Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
No. 30-262026-10-02. Service bulletin. Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils
No. 29-262026-10-02. Service bulletin. Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils
No. 28-262026-10-02. Service bulletin. Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils. Note that this bulletin covers all models back to model year 1984, for which C40 engine oils are allocated.
No. 27-262026-10-02. Service bulletin. Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils. Note that the bulletin covers all models back to model year 1984, for which C20 engine oils are allocated.
No. 26-262026-10-02. Service bulletin. Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils. Note that the bulletin includes all models back to model year 1984, for which C30 engine oils are allocated.