# Service campaign CB791

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 campaign
- NHTSA id: 11027019
- Published by NHTSA: 2026\-01\-06
- Manufacturer's number: CB791
- Manufacturer's date: 2025\-12\-10
- NHTSA component: ELECTRICAL SYSTEM; UNKNOWN OR OTHER

## NHTSA's summary

To prevent potential water ingress and enhance the longevity of SR\-4 HMI controllers, a silicone HMI cover \(PN 047376\) must be installed. This cover is specifically designed to protect the SR\-4 HMI from water intrusion.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11027019-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11027019-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- THERMO KING PRECEDENT C\-600
- THERMO KING PRECEDENT C\-600M
- THERMO KING PRECEDENT S\-600
- THERMO KING PRECEDENT S\-600M
- THERMO KING PRECEDENT S\-610DE
- THERMO KING PRECEDENT S\-610M
- THERMO KING PRECEDENT S\-700

JSON: [/v1/bulletins/11027019](/v1/bulletins/11027019)

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