Service bulletin 37373.8.0
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 | 11036248 |
| Published by NHTSA | 2026-08-18 |
| Manufacturer's number | 37373.8.0 |
| Manufacturer's date | 2026-07-28 |
| NHTSA component | ELECTRICAL SYSTEM |
NHTSA's summary
This is a Technical Journal: DIM Message and DTC BECM P0C7800. If the DIM displays a message stating "Drive System Service Required" and the DTC listed below is set, follow the advice under "Service". •Do not replace any parts. This is not hardware-related. •A new BECM software is released in version 3.6.4. or later. Perform a total upgrade according to TJ 31543 and release the car back to customer.
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
Electrical system
Trouble codes named
P0C78
| VOLVO S60PHEV | 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
|---|---|
| VOLVO S90PHEV | 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| VOLVO V60PHEV | 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| VOLVO XC60PHEV | 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| VOLVO XC90PHEV | 2022, 2023, 2024, 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.
| 25V179000 | 2025-03-24. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY; ELECTRICAL SYSTEM:SOFTWARE |
|---|---|
| 23V188000 | 2023-03-22. ELECTRICAL SYSTEM |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| 36863.4.0 | 2026-08-18. Service bulletin. This is a Technical Journal: DIM Message and DTC IEM P0C0500. 1. Erase the DTC 2. Test drive the vehicle in electrical mode and accelerate until the vehicle reaches a minimum of 30 km/h (19 mph). 3. Perform a new VIDA readout If the DTC IEM P0C0500 does not return, do not replace any parts. Release the car to customer. |
|---|---|
| 37373.7.0 | 2026-06-08. Service bulletin. This is a Technical Journal: DIM Message and DTC BECM P0C7800. If the DIM displays a message stating "Drive System Service Required" and the DTC listed below is set, follow the advice under "Service". •Do not replace any parts. This is not hardware-related. •A new Battery Energy Control Module software is released in software version 5.1.9. Perform a Total Upgrade according to TJ 31543 and release the car back to the customer. |
| 37103.6.0 | 2026-06-08. Service bulletin. This is a Technical Journal: Check Engine Light/DIM message and ISGM DTC P056200 or in combination with all the DTCs |
| 34295.9.0 | 2026-04-07. Service bulletin. This is a Technical Journal: Text plus 2 attachments 1 PDF and 1 PNG - High Voltage Battery repairs. Always repair the battery according to the methods in VIDA. This TJ is a guide to the kinds of repairs that can be done instead of a complete HV battery replacement. Parts, methods, and tools are now available to repair almost all faults within the High Voltage Battery. |
| 37103.4.0 | 2026-04-07. Service bulletin. This is a Technical Journal: Check Engine Light/DIM message and ISGM DTC P056200 or in combination with all the DTCs |
| 36757 | 2026-02-05. Service bulletin. This is a Technical Journal: Text plus TJI 528994 - Charge Lid Hard to open/close. begin with replacing the actuator in the lock mechanism |
| TJ37103.3.0-2025-11-13 | 2025-12-22. Service bulletin. This is a Technical Journal: Check Engine Light/DIM message and ISGM DTC P056200 or in combination with all the DTCs |
| TJ37373.6.0-2025-11-05 | 2025-12-22. Service bulletin. This is a Technical Journal: DIM Message and DTC BECM P0C7800. Structure Week 2023w47 and newer: New BECM software is released in version 3.6.4. Perform a Total Upgrade according to TJ 31543. • If the DTC sets after SW version 3.6.4 or newer has been installed, please follow VIDA fault tracing and then create a TIE Support Needed Vehicle Report. *Structure Week 2023w46 and older: New BECM software is planned for 2026, Q1. • Please follow VIDA fault tracing and then create a TIE Support Needed Vehicle Report |
| 37451 | 2025-08-18. Service bulletin. This is a Technical Journal: MVBM-U007700 set together with ECM-P0A7B68 at PDS. Delete the DTC´s. Do not reload MVBM software. IF the DTC´s comes back together with MIL check engine light, perform the MVBM software |
| 37103 | 2025-08-18. Service bulletin. This is a Technical Journal: Check Engine Light/DIM message and ISGM DTC P056200. |