Service bulletin 37299
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 | 11029172 |
| Published by NHTSA | 2026-03-02 |
| Manufacturer's number | 37299 |
| Manufacturer's date | 2026-02-04 |
| NHTSA component | POWER TRAIN |
NHTSA's summary
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.
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 C40BEV | 2024 (the catalog's model; the bulletin names a series or trim of it) |
|---|---|
| VOLVO C40BEV | 2025 |
| VOLVO XC40BEV | 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. |
| 37228 | 2026-01-07. 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. |
| 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. |
| 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. |
| 36496 | 2025-02-11. 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. |
| A10291 | 2025-01-07. Service bulletin. Volvo Car USA LLC and Volvo Car Canada LTD, on behalf of Volvo Car Corporation, has decided to launch Active Service Action A10291 on certain Model Year 2024 XC40 vehicles. Volvo Cars Quality investigations have identified that the O-ring in the piston movement path on the Active on Demand Coupling (AOC) is wider than designed causing the O-ring seal to twist. As a result, internal leakage may occur. The corrective action is to replace the AOC. A10291 affects 26 cars in the United States and 2 in Canada. |