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Service bulletin A011521 2040508-

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 id10119985
Published by NHTSA2017-10-21
Manufacturer's numberA011521 2040508-
Manufacturer's date2015-04-29
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

The MIL is on. DTC P046100 is stored in the ECM. DTC P046100 can be caused by miscalculations within the ECM software.

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

Trouble codes named

P0461

Vehicles listed
AUDI A32014
AUDI A3 CABRIOLET2015
AUDI A4 ALLROAD2014, 2015
AUDI A52014, 2015
AUDI A5 CABRIOLET2014 to 2015
AUDI A62014, 2015
AUDI A72014, 2015
AUDI A82014, 2015
AUDI Q52014, 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
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37J1UPDATE2024-01-22. Service bulletin. TCM Update
37I9UPDATE2024-01-22. Service bulletin. ECM/TCM Software Update (FED_EMS)
Update68E32024-01-22. Service bulletin. Comfort System Central Control Module Software Update (NVLW)
Update37I92024-01-22. Service bulletin. ECM/TCM Software Update
Update37J12024-01-22. Service bulletin. Update the TCM software to the latest level with SVM
A0023822047812_72024-01-04. Service bulletin. This bulletin provides information on how to set up and use the SD Creator for obtaining vehicle software updates via the Mirror Server.
A0123972072121_12023-12-06. Service bulletin. This bulletin provides information for when the MIL/EPC light is illuminated, DTC P042000 or P043000, Catalyst system, bank 1 or 2 efficiency below thresh hold.
Edition892023-02-06. Service bulletin. ElsaPro Software update and technical bulletins