Service bulletin 37666.1.0
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 | 11031104 |
| Published by NHTSA | 2026-04-07 |
| Manufacturer's number | 37666.1.0 |
| Manufacturer's date | 2026-03-19 |
| NHTSA component | FUEL/PROPULSION SYSTEM |
NHTSA's summary
This is a TJ - text plus 1 pdf - If the Check Engine Light is on and DTC ECM P044100 is set, please follow the advice under "Service". Do not start by replacing parts. Improved software is introduced with version 5.0.5.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Fuel system
Trouble codes named
P0441
| VOLVO XC40MHEV | 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 37236.5.1 | 2026-04-07. Service bulletin. This is a Technical Journal: Text only no attachments - CEL and DTC ECM P04F000. New ECM software has been released |
|---|---|
| TJ37521-1 | 2025-12-22. Service bulletin. This is a Technical Journal - If a customer experiences a "Propulsion System Service Required" message in the DIM, and the DTC IEM P0CBC62 is stored, please follow the advice under "Service". |
| TJ37521.1.0-2025-10-14 | 2025-12-22. Service bulletin. This is a Technical Journal - If a customer experiences a "Propulsion System Service Required" message in the DIM, and the DTC IEM P0CBC62 is stored, please follow the advice under "Service". |
| 37236 | 2025-08-18. Service bulletin. This is a Technical Journal: CEL and DTC ECM P04F000. New ECM software has been released |
| 37236 | 2025-07-09. Service bulletin. This is a Technical Journal: CEL and DTC ECM P04F000. New ECM software has been released |
| 37236 | 2025-03-27. Service bulletin. This is a Technical Journal: CEL and DTC ECM P04F000. New ECM software has been released |