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Service bulletin A-180391-TC-EN

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 id10144119
Published by NHTSA2018-09-04
Manufacturer's numberA-180391-TC-EN
Manufacturer's date2018-07-05
NHTSA componentELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

NHTSA's summary

[A_180391_TC_EN] TUONO V4 1100 Euro4 MY17: new instrument cluster calibrationDear Dealer / Service Centre, Please note that to update the instrument cluster software for the aforementioned model using the P.A.D.S. diagnostic tool (which must be updated to the most recent version available). This procedure must be carried out at the first available opportunity: during the pre-delivery procedure, alongside the other maintenance activities required during scheduled services or when the customer brings the vehicle to the service centre for any other reason. The software update resolves the issue in which the clock resets (to 00:00) when the vehicle is started in low battery voltage state. You ale also kindly requested to update the software on any spare instrument clusters in your stock when installing them on vehicles.

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

Electrical system, Equipment and accessories, Instrument cluster, Software

Vehicles listed
APRILIA TUONO2017

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