# Service bulletin SB999\-3

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: 11028004
- Published by NHTSA: 2026\-02\-02
- Manufacturer's number: SB999\-3
- Manufacturer's date: 2026\-01\-20
- NHTSA component: ELECTRICAL SYSTEM; UNKNOWN OR OTHER

## NHTSA's summary

If an APU current sensor has failed on a unit manufactured prior to December 2, 2025, replace with an updated current sensor Part Number 401928. For units after this date, the standoff bracket is incorporated into the sensor.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028004-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028004-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- THERMO KING TRIPAC
- THERMO KING TRIPAC ENVIDIA
- THERMO KING TRIPAC EVOLUTION
- THERMO KING TRIPAC\-3

JSON: [/v1/bulletins/11028004](/v1/bulletins/11028004)

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