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Service bulletin SIL-621

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 id10059020
Published by NHTSA2016-01-13
Manufacturer's numberSIL-621
Manufacturer's date2015-10-06
NHTSA componentEQUIPMENT

NHTSA's summary

ALTEC: TSB CONTAINS AN OWNER'S NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. INFORMATION IS BEING PROVIDED REGARDING THE RELIABLE PRODUCTS AND COMPONENTS, FOR INSPECTION AND REPAIR AND SOFTWARE UPDATED TO IMPROVE OPERATION OF SYSTEM. MODEL AM SERIES, TA SERIES, LR7. NO MODEL YEARS LISTED. *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

Equipment and accessories

Vehicles listed
ALTEC SERVICE BODY2011

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