# Service bulletin Circular 23BY

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.

- Type: Service bulletin
- NHTSA id: 10181439
- Published by NHTSA: 2020\-11\-05
- Manufacturer's number: Circular 23BY
- Manufacturer's date: 2020\-10\-08
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\)

## NHTSA's summary

During routine evaluation testing, it was determined that some software functions required updates.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10181439-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10181439-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Engine, Engine control module, Software

## Vehicles listed

- 2009 to 2010 AUDI Q7

## Other bulletins for the same vehicles and component

- [UPDATE23F1](/bulletins/10249091.md), 2024-01-22, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). SVM update and Missing Emblems
- [A0023822047812\_7](/bulletins/10248111.md), 2024-01-04, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. This bulletin provides information on how to set up and use the SD Creator for obtaining vehicle software updates via the Mirror Server.
- [A232357204075211](/bulletins/10233298.md), 2023-04-06, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). This bulletin provides instructions for when the MIL is on, and the vehicle either runs roughly or does not start in the presence of one or more of the following DTCs: P008700, P008800, P019100
- [Edition89](/bulletins/10231127.md), 2023-02-06, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. ElsaPro Software update and technical bulletins
- [00146620379491](/bulletins/10228298.md), 2023-01-03, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). A DTC with the description ?Invalid Data Record? is stored after an ECU has been replaced or updated.
- [001465201173210](/bulletins/10228297.md), 2023-01-03, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. This Technical Service Bulletin \(TSB\) details the general process for carrying out a Software Version Management \(SVM\) software update for any TSB or Update.
- [01149520384341](/bulletins/10225085.md), 2022-10-31, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Software update needed.
- [01137620182607](/bulletins/10225032.md), 2022-10-31, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). Contact resistance in the ECM wiring ? throttle valve.
- [01149520384341](/bulletins/10222058.md), 2022-09-26, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Software update needed.
- [01138020243442](/bulletins/10222009.md), 2022-09-26, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). After recognizing that the boost pressure is too low or too high, the engine control module switches to emergency operation and the engine performance is reduced via the injected fuel quantity \(?limp mode?\).

JSON: [/v1/bulletins/10181439](/v1/bulletins/10181439)

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