# Service bulletin Circular90T2REV2

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: 10209269
- Published by NHTSA: 2022\-04\-05
- Manufacturer's number: Circular90T2REV2
- Manufacturer's date: 2022\-03\-23
- NHTSA component: COMMUNICATION

## NHTSA's summary

Update the emergency call module control unit and communication unit software. Added claiming and work instructions in the event an Emergency Call Module Control Unit and Communication Unit is faulty.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10209269-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10209269-9999.pdf)

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

## Vehicles listed

- 2020 AUDI A4
- 2020 AUDI A4 ALLROAD
- 2020 AUDI A5
- 2020 AUDI A5 CABRIOLET
- 2020 AUDI S4
- 2020 AUDI S5
- 2020 AUDI S5 CABRIOLET

JSON: [/v1/bulletins/10209269](/v1/bulletins/10209269)

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