# Service bulletin PIC6537E

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: 11025573
- Published by NHTSA: 2025\-11\-17
- Manufacturer's number: PIC6537E
- Manufacturer's date: 2025\-11\-11
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

This Preliminary information communicates that a noise or vibration maybe heard from the A/C compressor and that Engineering is working on a resolution.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11025573-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11025573-9999.pdf)

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

## Vehicles listed

- 2026 CADILLAC OPTIQ

JSON: [/v1/bulletins/11025573](/v1/bulletins/11025573)

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