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Service bulletin TSB-91-11-23

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 id10042404
Published by NHTSA2011-12-07
Manufacturer's numberTSB-91-11-23
Manufacturer's date2011-10-25
NHTSA componentEXTERIOR LIGHTING:HEADLIGHTS

NHTSA's summary

AUDI: HEADLIGHTS SPORADICALLY WILL REPEAT BASIC SETTINGS ON LEFT/RIGHT SIDE AFTER HAVING STARTING THE ENGINE. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Lighting, Headlights

Vehicles listed
AUDI Q52011

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

Other bulletins for the same vehicles and component
A9424722073282_12024-04-04. Service bulletin. This bulletin provides information on visual concerns with the headlight lens.
A9423672071954_12023-11-06. Service bulletin. This bulletin provides information pertaining to when there are foreign objects inside of a headlight or taillight.
A0023692031473_42023-06-06. Service bulletin. This bulletin provides information for when car wash bristles become stuck in the body gap between the headlight and fender.
A0021472031473_32021-07-02. Service bulletin. This information bulletin states to remove the car wash bristle and advise the customer to go somewhere else to prevent it from occurring again.
A941312 2017566-2017-11-17. Service bulletin. Supersedes Technical Service Bulletin Group 94 number 09-23 dated August 12, 2009. Headlight switch knob is pressed in. The switch functions correctly. The headlight switch knob was designed with a normal position and a pushed-in position. This is a deliberate design feature designed to avoid injuries in the event of a collision.
A941296 2027773-2017-11-08. Service bulletin. Supersedes Technical Service Bulletin Group 94 number 12-69 dated March 15, 2012. Part or all of the daytime running lights do not work on vehicles with LED DRLs. For vehicles with halogen DRLs, please reference TSB 2017488, 94 Halogen Daytime running lights do not work. In the past, the daytime running light bulbs were a serviceable part. In this application, the LED strip cannot be replaced, and may have an associated control module. This TSB is for servicing information only.
A941565 2012749-2017-10-21. Service bulletin. Supersedes Technical Service Bulletin Group 94 number 12-92 dated October 24, 2012. Condensation is visible on the inside of the headlight, taillight, fog light, side marker light, front turn signal, daytime running lights, or third brake light lens.
TSB-94-11-612012-03-10. Service bulletin. AUDI: AFTER SWITCHING ON TERMINAL 15, A VOLTAGE DROP MY OCCUR DURING INITIALIZATION PERIOD. HEADLIGHTS NOT ADAPTED AND BASIC SETTING NOT COMPLETED. *PE
TSB-94-10-382011-02-16. Service bulletin. AUDI: DAYTIME RUNNING LIGHTS DO NOT WORK. DAYTIME RUNNING LIGHTS DO NOT WORK ON VEHICLES WITH XENON HEADLIGHTS. THE THUMB WHEEL OR OPTION FOR DAYTIME RUNNING LIGHTS IS TURNED OFF BY MISTAKE. *PE