# Service bulletin SB2009\-1

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: 11026133
- Published by NHTSA: 2025\-12\-04
- Manufacturer's number: SB2009\-1
- Manufacturer's date: 2025\-11\-21
- NHTSA component: ELECTRICAL SYSTEM; UNKNOWN OR OTHER

## NHTSA's summary

All Bus units equipped with Air Purification Solution \(APS\) manufactured prior to December 2nd, 2025.Thermo King is transitioning to a new DC current sensor kit \(401928\) and will be fully backward compatible. The new sensor kit will fit earlier units and includes hardware needed for installation.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11026133-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11026133-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- THERMO KING RLF2
- THERMO KING RLF2E
- THERMO KING T\-14
- THERMO KING T\-15
- THERMO KING TE14\-M11
- THERMO KING TE14\-M17
- THERMO KING TE14\-M20
- THERMO KING TE14\-M23

JSON: [/v1/bulletins/11026133](/v1/bulletins/11026133)

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