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Service bulletin A91166420425063

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 id10092106
Published by NHTSA2017-02-17
Manufacturer's numberA91166420425063
Manufacturer's date2016-07-26
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT ADAPTIVE/MOBILITY

NHTSA's summary

THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO DETERMINE THE STATUS OF ACTIVATION KEYS (THAT AFFECT THE FUNCTION OF AUDI DRIVE SELECT, CRUISE CONTROL, NAVIGATION, BLUETOOTH, SMARTPHONE INTERFACE AND VOICE RECOGNITION), AND HOW TO UPDATE THEM .

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

Electrical system, Equipment and accessories, Software

Vehicles listed
AUDI A3 CABRIOLET2015 to 2018
AUDI A4 ALLROAD2017, 2018
AUDI A62016, 2017, 2018
AUDI A72016, 2017, 2018
AUDI ALLROAD2017 to 2018
AUDI Q72017, 2018
AUDI R8 SPYDER2017 to 2018
AUDI RS 72016, 2017, 2018
AUDI S32015, 2016, 2017, 2018
AUDI S42017
AUDI S42018
AUDI S62016, 2017, 2018
AUDI S72016, 2017, 2018
AUDI TT ROADSTER2016 to 2018
AUDI TTS2016, 2017, 2018

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

Recalls for the same vehicles and component
16V6420002016-09-06. ELECTRICAL SYSTEM:SOFTWARE; EXTERIOR LIGHTING

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
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A9023582072005_22024-01-04. Service bulletin. This bulletin provides information for when the error message "CBR1021E: Can't parse Request. (cpngw)" appears when adapting control units, keys, or immobilizer; DTC B201700.
A2723512058831_72023-04-06. Service bulletin. This bulletin contains a software update for DTC P0CA700 or U046900.
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A2722452058831_12022-10-05. Service bulletin. This bulletin contains a software update for DTC P0CA700 or U046900.
A4622332051095_72022-07-01. Service bulletin. This informational bulletin contains instructions on how to download and use the Audi Frequency App.
A9622772059201_52022-05-05. Service bulletin. This bulletin contains information for when the messages appear in the instrument cluster about the high beam assist and/or traffic sign detection with DTC C12B3FD.
DC_91CD_Train2022-03-04. Service bulletin. 3G Turndown (91CD) Dealer Training