2021-2022 Audi Transmission Control Module DTC TSB
Audi has issued a manufacturer communication (NHTSA ID 10205902) outlining a repair process for a Diagnostic Trouble Code (DTC) stored in the transmission control module. This TSB affects various 2021-2022 Audi models, including the Q7, A4, A5, A6, and Q5.
S'applique également à
- Audi A4
- 2021–2022
- Audi A5
- 2021–2022
- Audi A6
- 2021–2022
- Audi Q5
- 2021
- Audi Q7
- 2022
Symptoms
This manufacturer communication addresses situations where a "DTC stored in the transmission control module" is detected. While the specific owner-perceptible symptoms are not detailed in the summary, the presence of a DTC typically indicates an underlying issue that may trigger a malfunction indicator light (MIL) on the dashboard or affect vehicle performance. Owners might notice unusual shifting behavior or other transmission-related concerns.
Fault Codes / DTCs
This repair bulletin, identified by NHTSA ID 10205902, specifically targets a generic "DTC stored in the transmission control module." The document summary does not specify a particular Diagnostic Trouble Code (DTC) number (e.g., Pxxxx, Bxxxx, Cxxxx, Uxxxx). If your vehicle has a warning light related to the powertrain or transmission, a diagnostic scan by a qualified technician will reveal the specific DTCs present.
Diagnosis / Trigger Conditions
The manufacturer communication outlines a process to address the condition where a "DTC stored in the transmission control module" is found. Typically, diagnosis involves connecting a diagnostic tool to the vehicle's On-Board Diagnostics (OBD-II) port to read the stored fault codes. The specific conditions that trigger this DTC are not elaborated in the provided summary, but they relate to the electrical system's software and the automatic transmission's control module.
Repair Procedure Summary
This repair bulletin describes the process to address a "DTC stored in the transmission control module." While the exact steps are not detailed in the summary, such issues often involve updating the software for the Transmission Control Module (TCM) or Powertrain Control Module (PCM). This software update aims to correct the logic or parameters that are causing the DTC to be set. Owners experiencing an Audi Q7 transmission control module DTC should have their vehicle inspected by an authorized Audi service center.
Owner Action
If you own a 2021-2022 Audi Q7, A4, A5, A6, or Q5 and suspect an issue with your transmission or have a warning light illuminated, it is recommended to contact an authorized Audi dealership. They can perform a diagnostic scan to determine if your vehicle has a "DTC stored in the transmission control module" and apply the necessary repair procedure outlined in this manufacturer communication (NHTSA ID 10205902). This type of repair, being a manufacturer communication, is typically covered under warranty if your vehicle is still within the warranty period.
Source: NHTSA ID 10205902
Frequently Asked Questions
- What does 'DTC stored in the transmission control module' mean for my Audi?
- A 'DTC stored in the transmission control module' indicates that the vehicle's computer has detected an electrical or operational fault within the automatic transmission system. This can trigger a warning light on your dashboard and might affect how your Audi shifts gears or performs.
- How do I know if my 2021-2022 Audi Q7 has a transmission control module DTC?
- You might notice a 'Check Engine' light or another transmission-related warning light on your dashboard. The most definitive way to confirm an Audi Q7 transmission control module DTC is to have a diagnostic scan performed by an authorized Audi dealership or a qualified technician.
- What is the repair for an Audi with a 'DTC stored in the transmission control module'?
- According to Audi's manufacturer communication (NHTSA ID 10205902), the repair typically involves a software update or re-flash of the Transmission Control Module (TCM) to correct the underlying issue causing the DTC. An authorized Audi service center can perform this procedure.
- Is the repair for this transmission control module DTC covered by warranty?
- Generally, repairs outlined in manufacturer communications like this TSB are covered under the vehicle's factory warranty if your 2021-2022 Audi Q7, A4, A5, A6, or Q5 is still within its warranty period. It's best to confirm with your Audi dealership.
What Audi Q7 owners report
Counted from the records in our database across 20 model years.
- 1,059
- Owner complaints
- 32
- Recalls
- 4,035
- Service bulletins
- 35
- Crashes reported
- 7
- Fires reported
- 98
- Injuries reported
The 2021 model year
75 complaints, the 4th most of 20 model years on file. Owners reported 3 crashes, 0 fires and 5 injuries for this year, which also has 9 recalls on file.
Electrical System and Power Train, the system this article covers, accounts for 250 of 1,059 complaints (24%), including 44 for 2021.
Complaints by model year
| 2007 | 95 | |
|---|---|---|
| 2008 | 33 | |
| 2013 | 44 | |
| 2014 | 46 | |
| 2015 | 46 | |
| 2017 | 323 | |
| 2018 | 144 | |
| 2019 | 63 | |
| 2020 | 29 | |
| 2021 | 75 |
Most-reported systems
- Engine — 211
- Electrical System — 206
- Exterior Lighting — 170
- Fuel/Propulsion System — 142
- Suspension — 67
Latest recalls for the 2021 model year
- 25V900000 — Back Over Prevention (Dec 2025)
- 25V201000 — Electrical System (Mar 2025)
- 22V742000 — Back Over Prevention (Oct 2022)
Recent owner reports about electrical system and power train
It is listed as Instrument cluster malfunction with a couple lights on like Brake, ABS, steering wheel with exclamation point next to it.
Read owner complaints →The contact owns a 2021 Audi Q7. The contact stated that the instrument cluster display had become blank and failed to operate as intended.
Complaints are owner reports filed with NHTSA. They are unverified, and counts depend on how many vehicles were sold, so they are not a failure rate.
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