# 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.

- Type: Service bulletin
- NHTSA id: 11031549
- Published by NHTSA: 2026\-04\-24
- Manufacturer's number: SIL\-3274
- Manufacturer's date: 2026\-04\-24
- Campaign id or software version: SIL\-3274
- NHTSA component: ELECTRICAL 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

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11031549-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11031549-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Vehicles listed

- 2025 ALTEC AT SERIES

JSON: [/v1/bulletins/11031549](/v1/bulletins/11031549)

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