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Service bulletins for the 2014 Audi A8

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.

1325 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Transmission control module are shown. Show all

Bulletins, newest first
37 14 37 20371372022-05-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ELECTRICAL SYSTEM. Incorrect software calibration in the engine control module (ECM), J623, and transmission control module (TCM), J217. Customer may report feeling a slight hesitation or delay at 5-9 mph after accelerating from a stop.
37 14 36 20371512022-05-02. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). The self-coding function of the TCM may not complete during a software update. Incorrect coding in control module after software update (DTC P1749 stored in TCM)
A371437 2037137-2017-11-08. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Customer may report feeling a slight hesitation or delay at 5-9 mph after accelerating from a stop. Incorrect software calibration in the engine control module (ECM), J623, and transmission control module (TCM). New software in the ECM and TCM addressed the condition.
A371436 2037151-2017-11-08. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). DTC P174900 (Automatic transmission control module incorrect code) appears in the Transmission Control Module (TCM) after an SVM update. The self-coding function of the TCM may not complete during a software update.
A971442 2036764-2017-11-08. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 97 number 14-41 dated March 18, 2014. The MIL is on. Vehicle will not start. DTC P068A00 is stored in the engine control module (ECM), J623 (address word 01). Numerous unrelated DTCs are also stored in the system, including: P056200, P057100, P068700, P068A00, P162400, P190C00, U010000, U010100, U012100, U014600, U015500, U021200, U101100, U102600, U111100, U111300, U140000, VAG00003, VAG00185, VAG00263, VAG00317, VAG00384, VAG00446, VAG00456, VAG00457, VAG00466, VAG00473, VAG00532, VAG00565, VAG00591, VAG00714, VAG00819, VAG00955, VAG01217, VAG01299, VAG01314, VAG01315, VAG01317, VAG01320, VAG01330, VAG01331, VAG01332, VAG01334, VAG01333, VAG01336, VAG01705, VAG01964, VAG02067, VAG02072, VAG02095, VAG02103, VAG02203, VAG02214, VAG02635, VAG02812, VAG02874, VAG03041, VAG03157, VAG03166, VAG03220, VAG03278, and/or VAG03531. The motronic engine control module power supply relay, J271, is not functioning properly. Because the J271 relay controls battery voltage (Terminal 30) via a ground signal sent from the ECM, numerous faults can occur in multiple control modules when it is not functioning properly.
A011526 2041120-2017-10-25. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). The MIL is on. DTC P042000 and/or P043000 (Catalyst system Bank 1/2, Efficiency below threshold) is stored in the engine control module (ECM), J623 (address word 01). The diagnostic limitations were too narrow.
A011508 2030580-2017-10-25. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE. Supersedes Technical Service Bulletin Group 01 number 15-06 dated January 16, 2015. The customer complains that the vehicle sporadically cannot be started. The yellow gearbox warning light may be illuminated. DTC P157000 and/or DTC P170100 present in the ECM and the transmission control module, respectively.
A271525 2036392-2017-10-25. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE. Supersedes Technical Service Bulletin Group 27 number 14-23 dated April 24, 2014. Vibrations are felt at 1000 rpm and 3000 rpm. DTCs may be stored in the subframe mount control module. Optimized J931 control module software.
A011521 2040508-2017-10-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE. The MIL is on. DTC P046100 is stored in the ECM. DTC P046100 can be caused by miscalculations within the ECM software.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.