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Service bulletin SIL-3274

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 id11031549
Published by NHTSA2026-04-24
Manufacturer's numberSIL-3274
Manufacturer's date2026-04-24
Campaign id or software versionSIL-3274
NHTSA componentELECTRICAL SYSTEM; UNKNOWN OR OTHER

NHTSA's summary

Altec has learned that in some instances, certain AT-ME/PE/SE and AT40-G units configured for aerial telematics data built from May 2025 to October 2025, below rotation wiring of the Below Rotation Interface Module (BRIM), or an Altec installed chassis inclinometer may create a situation where those components are awake and broadcasting CAN data when the above rotation main control module is off. This can cause the module to continuously reboot when the key is on. This continuous rebooting may cause the module to revert to defaults and no longer be able to save.

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

Vehicles listed
ALTEC AT SERIES2025

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