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Service bulletin A941800 2050234-

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10145661
Published by NHTSA2018-10-15
Manufacturer's numberA941800 2050234-
Manufacturer's date2018-07-17
NHTSA componentEXTERIOR LIGHTING:BRAKE LIGHTS; ELECTRICAL SYSTEM; STRUCTURE:BODY:BUMPERS

NHTSA's summary

This bulletin contains instructions regarding when the rear lights do not switch from bumper to hatchgate after closing with DTC B146C29.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Body and frame, Electrical system, Lighting, Brake lights

Trouble codes named

B146C

Vehicles listed
AUDI Q52018

Listing a model year does not mean every vehicle of it is concerned: the document says which.