# Service bulletin Closure 45E3

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: 10201526
- Published by NHTSA: 2021\-10\-06
- Manufacturer's number: Closure 45E3
- Manufacturer's date: 2021\-09\-16
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

On certain Audi A4 vehicles manufactured within a specific period, a software update package for the ESP control unit and instrument cluster has been prepared \- Campaign Closure Notice – Action Expiring

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10201526-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10201526-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2017 AUDI A4

## Other bulletins for the same vehicles and component

- [TSB\_2079214\_4](/bulletins/11038061.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides information regarding fault finding and repair information for electric tailgate.
- [TSB\_2082977\_1](/bulletins/11036974.md), 2026-09-04, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides informaiton when the airbag warning lamp is active, event memory "B200000 \- Faulty control module, symptom 305".
- [TSB\_2073747\_4](/bulletins/11035810.md), 2026-08-05, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides informatoinw hent here are scratches or a coating on the cover of the instrument cluster, or particles inside of the housing.
- [TSB\_2059335\_7](/bulletins/11034643.md), 2026-07-07, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides information when there are noises from the area around the instrument cluster.
- [TSB\_2074729\_3](/bulletins/11034634.md), 2026-07-07, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides informationwhen noises/vibration are detected from front of vehicle in dynamic mode.
- [TSB\_2080517\_4](/bulletins/11033492.md), 2026-06-04, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides informaiotn when the starter battery is discharged or defective.
- [TSB\_2080517\_3](/bulletins/11032165.md), 2026-05-05, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides informaiotn when the starter battery is discharged or defective.
- [TSB\_2081409\_1](/bulletins/11031053.md), 2026-04-07, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides informaiton regarding the Universal Traffic Recorder.
- [TSB\_2081405\_1](/bulletins/11031051.md), 2026-04-07, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides informaiotn about various infortainment system complaints.
- [TSB\_2024323\_13](/bulletins/11030985.md), 2026-04-07, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides information when the parking assistance gives false warnings.

JSON: [/v1/bulletins/10201526](/v1/bulletins/10201526)

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