# Service bulletin 37440

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: 11021940
- Published by NHTSA: 2025\-08\-18
- Manufacturer's number: 37440
- Manufacturer's date: 2025\-07\-31
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

This is a Technical Journal: ICUP Critical Guidelines for Replacing IHU.After replacing the IHU with one of the part numbers listed above, follow the steps below:\&\#13; 1. Download IHU reload \(select Yes for replaced HW\).\&\#13; 2. Perform a Total Upgrade.\&\#13; 3. Manually order and download SP according to the list below

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11021940-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11021940-9999.pdf)

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

## Vehicles listed

- 2022 to 2024 VOLVO C40BEV
- 2025 VOLVO C40BEV
- 2025 VOLVO EC40
- 2025 VOLVO EX40
- 2023 to 2025 VOLVO S60MHEV
- 2023 to 2025 VOLVO S60PHEV
- 2022 to 2025 VOLVO S90MHEV
- 2022 to 2025 VOLVO S90PHEV
- 2023 to 2025 VOLVO V60CCMHEV
- 2023 to 2025 VOLVO V60CCPHEV
- 2024 to 2025 VOLVO V60MHEV
- 2023 to 2025 VOLVO V60PHEV
- 2022 VOLVO V90CC
- 2022 to 2025 VOLVO V90CCMHEV
- 2021 to 2024 VOLVO XC40
- 2021 to 2025 VOLVO XC40BEV
- 2023 to 2025 VOLVO XC40MHEV
- 2022 VOLVO XC60
- 2022 to 2025 VOLVO XC60MHEV
- 2022 to 2025 VOLVO XC60PHEV
- 2023 to 2025 VOLVO XC90MHEV
- 2023 to 2025 VOLVO XC90PHEV

JSON: [/v1/bulletins/11021940](/v1/bulletins/11021940)

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