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Service bulletin No. 86-20

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 id10176855
Published by NHTSA2020-07-01
Manufacturer's numberNo. 86-20
Manufacturer's date2020-06-29
NHTSA componentPOWER TRAIN; EQUIPMENT

NHTSA's summary

Instructions on what to do if the Taycan is displaying yellow "Transmission Fault" warnings on screen.

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

Equipment and accessories, Transmission and driveline

Vehicles listed
PORSCHE TAYCAN2020

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

Recalls for the same vehicles and component
20236622023-12-13. Accessories
22V4040002022-06-08. BACK OVER PREVENTION: SENSING SYSTEM: CAMERA; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
20214012021-06-28. Powertrain

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
WTL22026-10-02. Service campaign. Porsche intranet posting for Campaign WTL2 – Replacing Electric Passenger Compartment Heater
No. WTL22026-10-02. Service campaign. Technical Information for Campaign WTL2 – Replacing Electric Passenger Compartment Heater
WTL52026-09-04. Over-the-air update. Porsche intranet posting for Campaign WTL5 Over-the-Air (OTA) Update– Reprogramming the high-voltage battery control unit (BMCe)
No. D7802026-05-07. Service bulletin. Parts information for parts withdrawal involving the transmission oil. Part number 00004321012 is affected - the vehicles that use this part number should be included.
No. D7762026-05-06. Service bulletin. Parts information for parts withdrawal involving the transmission oil. The vehicles affected are ones that use the part number 00004330563
No. D768.12026-04-07. Service bulletin. Parts information for parts withdrawal involving the transmission fluid. Part number 00004321048. The cars affected are ones that use the part number listed.
No. D7682026-03-02. Service bulletin. Parts information for parts withdrawal involving the (00004321048) Transmission fluid. The vehicles affected are ones that use the part number mentioned.
No. D7612026-03-02. Service bulletin. Parts information for parts withdrawal involving the 7 speed dual clutch gear box. Part numbers 0BG300047 and 0BG300047X are affected. Cars that are involved are ones that use the part numbers mentioned.
No. D735.12025-10-08. Service bulletin. Parts information for parts withdrawal involving the rear axle steering. The part numbers are 992501031H, 992501032H, 992501033AB, 992501033AC. The vehicles affected are cars that use the part numbers listed
No. 86-202025-09-09. Service bulletin. Symptom based workshop manual for Transmission Symptom - Yellow Warning Message, Jammed Claw Clutch, P1D2E00, 00ABC8