# Service bulletin 07\-001\-24b

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: 11010988
- Published by NHTSA: 2024\-12\-03
- Manufacturer's number: 07\-001\-24b
- Manufacturer's date: 2024\-11\-13
- NHTSA component: UNKNOWN OR OTHER
- Manufacturer's system: Air Conditioning

## NHTSA's summary

Some vehicles may exhibit a loud vibration noise when the electric A/C compressor is operating. Due to processing variation of the counter\-balance bushing \(a weight to balance eccentric rotation\) installed in the electric compressor, some of the bushing strongly interferes with the shaft, resulting in the humming noise. To eliminate this concern, the machining accuracy of the counter\-balance bushing has been improved.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11010988-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11010988-9999.pdf)

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

## Vehicles listed

- 2024 MAZDA CX\-90

JSON: [/v1/bulletins/11010988](/v1/bulletins/11010988)

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