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Service bulletin Dealer Letter -

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 id10122740
Published by NHTSA2017-11-08
Manufacturer's numberDealer Letter -
Manufacturer's date2012-10-26
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM

NHTSA's summary

On certain Audi A8 and S8 vehicles with 4.0L engines, shifting operation of the gearbox may feel uncomfortable. Update the ECM and TCM software to the latest level.

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, Transmission control module

Vehicles listed
AUDI A82013

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
37126920311402024-02-20. Service bulletin. Warning message in cluster, no driving mode can be selected - Faults P09140, U040400, U010300 stored in TCM
3714222028985112022-11-21. Service bulletin. Transmission warning message in cluster (P074100 stored in TCM)
371420203627812022-11-21. Service bulletin. Rough downshifts when vehicle is slowed to a stop.
371399202902762022-11-21. Service bulletin. Transmission warning message in cluster.
371397202898592022-11-21. Service bulletin. Transmission warning message in cluster, P074100 stored in TCM
371396202930592022-11-21. Service bulletin. Harsh downshifts when braking or harsh 1-2 upshift under acceleration
371384202930572022-11-21. Service bulletin. Harsh downshifts when braking or harsh 1-2 upshift under acceleration
371382202856142022-11-21. Service bulletin. Gearbox warning light on - Faults P0605 and/or P17EC stored in Selector lever module 81
371380202898562022-11-21. Service bulletin. Transmission warning message in cluster, P074100 stored in TCM
371379202930562022-11-21. Service bulletin. Harsh downshifts when braking or harsh 1-2 upshift under acceleration