Service bulletin 37228
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 | 11027191 |
| Published by NHTSA | 2026-01-07 |
| Manufacturer's number | 37228 |
| Manufacturer's date | 2025-12-20 |
| NHTSA component | POWER TRAIN |
NHTSA's summary
This is a Technical Journal: Vehicle jerks in low speed when Start/Stop is active. Improved software is introduced from version 3.5.14.
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
Transmission and driveline
| VOLVO S60PHEV | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
|---|---|
| VOLVO S90MHEV | 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| VOLVO V60CCMHEV | 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| VOLVO XC40MHEV | 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| VOLVO XC60MHEV | 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| VOLVO XC90MHEV | 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.
| 36774.4.0 | 2026-10-05. Service bulletin. This is a Technical Journal: Text plus 1 PDF -- DTC TCM P277C07 set. If the TCM DTC listed below is set, A new transmission hardware solution has been introduced starting from transmission serial number 25M8L30144, which serves as a defined break point for updated production. *If the DTC is confirmed and the transmission serial number is after the break point: Do NOT replace the transmission follow the advise under "Service". |
|---|---|
| 36774.3.0 | 2026-07-14. Service bulletin. This is a Technical Journal: DTC TCM P277C07 set. If the TCM DTC listed below is set, A new transmission hardware solution has been introduced starting from transmission serial number 25M8L30144, which serves as a defined break point for updated production. *If the DTC is confirmed and the transmission serial number is after the break point: Do NOT replace the transmission follow the advise under "Service". |
| 36496.10.0 | 2026-06-08. Service bulletin. This is a Technical Journal: Intermittent knocking noise during acceleration. If the sound corresponds to attached sound file, change front drive shafts to the below part numbers. |
| 37299 | 2026-03-02. Service bulletin. This a Technical Journal plus 1 mp4 file If a customer experiences noise from the rear of the vehicle, often generated at low speeds and during cold climate conditions (listen to the attached file TJ_37299_1.mp4 as a reference), please follow the advice under "Service". Note! Do not replace any parts, as this will not solve the issue. Analysis is ongoing, and this journal will be updated accordingly. *The estimated timeline for the solution is during quarter 3 of 2026. |
| 36814 | 2025-07-09. Service bulletin. This is a Technical Journal: Transmission Shifts From D or R to P Immediately After Starting. This symptom can occur if the driver changes the position of the gear shifter from P to D or R very quickly after starting the engine and the starting process is not completed. Inform the driver to pause briefly after starting the vehicle before shifting into D or R. |
| 37228 | 2025-07-09. Service bulletin. This is a Technical Journal: Vehicle jerks in low speed when Start/Stop is active. Improved software is introduced from version 3.5.14. |
| 36814 | 2025-07-09. Service bulletin. This is a Technical Journal: Transmission Shifts From D or R to P Immediately After Starting. This symptom can occur if the driver changes the position of the gear shifter from P to D or R very quickly after starting the engine and the starting process is not completed. Inform the driver to pause briefly after starting the vehicle before shifting into D or R. |
| 35732 | 2025-04-09. Service bulletin. This is a Technical Journal: Clicking sound from transmission area. This is considered a normal operating characteristic/function of the vehicle. |
| 37299 | 2025-04-09. Service bulletin. This a Technical Journal: Noise from ERAD in Cold Climate Conditions. Analysis is ongoing, and this journal will be updated accordingly. |
| 36989 | 2025-04-09. Service bulletin. This is a Technical Journal: Vehicle jerks and TCM DTC P071164 set. A software solution is introduced from version 3.4.4. |