# Service bulletin 37935.2.0

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: 11037972
- Published by NHTSA: 2026\-10\-05
- Manufacturer's number: 37935.2.0
- Manufacturer's date: 2026\-09\-24
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

This is a TJ \- Text only \- no attachments \- If the Check Engine Light is on, or there is a "Reduced Performance" message in the DIM, and the customer is experiencing a hesitation or jerk during acceleration with one or more of the DTCs listed below set, Improved ECM \(Engine Control Module\) software has been released in version 5.2.16. please follow the advice under "Service".

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11037972-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11037972-9999.pdf)

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

## Vehicles listed

- 2025 to 2027 VOLVO XC60MHEV
- 2025 to 2027 VOLVO XC90MHEV
- 2026 to 2027 VOLVO XC90PHEV

JSON: [/v1/bulletins/11037972](/v1/bulletins/11037972)

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