# Service bulletin A9421452063766\_1

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: 10201520
- Published by NHTSA: 2021\-10\-06
- Manufacturer's number: A9421452063766\_1
- Manufacturer's date: 2021\-09\-02
- NHTSA component: EXTERIOR LIGHTING:TAIL LIGHTS; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

## NHTSA's summary

This bulletin contains repair instructions for DTC B12CB15 and/or B12CC15 with a tail warning lamp.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10201520-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10201520-9999.pdf)

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

## Components

Equipment and accessories, Labels and manuals, Lighting, Tail lights

## Trouble codes named

B12CB, B12CC

## Vehicles listed

- 2018 to 2020 AUDI Q5
- 2020 AUDI Q5 PHEV
- 2018 to 2020 AUDI SQ5

## Other bulletins for the same vehicles and component

- [A9423672071954\_1](/bulletins/10244595.md), 2023-11-06, Service bulletin: EXTERIOR LIGHTING:TAIL LIGHTS; EXTERIOR LIGHTING:HEADLIGHTS. This bulletin provides information pertaining to when there are foreign objects inside of a headlight or taillight.
- [A9421512063766\_2](/bulletins/10203720.md), 2021-12-07, Service bulletin: EQUIPMENT; EXTERIOR LIGHTING:TAIL LIGHTS. This bulletin contains repair instructions for DTC B12CB15 and/or B12CC15 with a tail warning lamp.

JSON: [/v1/bulletins/10201520](/v1/bulletins/10201520)

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