Volvo bulletin 37474
What it saysThis is a Technical Journal: DC Charging Power Limited to 150 kW. NHTSA’s full summary ↓
Volvo filed this with NHTSA as a service bulletin dated Feb 3, 2026, received Sep 5, 2025, about the electrical system — 2 documents under this number. It names 8 model years (2024–2026). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis is a Technical Journal: DC Charging Power Limited to 150 kW. Vehicles equipped with the large HBAT27 (82?kWh) battery are capable of DC charging at up to 205?kW, provided certain conditions are met—such as a low State of Charge (<20% SoC) and active battery preconditioning (by selecting a DC charger in Google Maps at least 20 minutes before arrival).
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 37474 | Service bulletin | Feb 3, 2026 | 11029171 | |
| 37474 | Service bulletin | Aug 28, 2025 | 11022810 |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themAlso filed against model years this site has no page for: 2025 Volvo C40BEV.
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 7 model years this bulletin names have filed 44 complaints with NHTSA since 2015. 12 of them name Electrical System — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
My car randomly has a battery charging fault. An alert stating “stop safely 12V battery critical charging fault” will just pop up while driving and then put the vehicle in turtle mode. This is an intermittent fault and is likely a false indication. This could cause an accident because it causes the car to slow down.
2025 Volvo XC40 · Electrical System · filed with NHTSA Jan 27, 2026 · ODI 11713785
There are 2 very serious safety issues that are extremely dangerous with this car. #1 - The Automatic Intervention Rear Brake Auto Brake engages for no reason when there is nothing behind the car. It happens when I am backing up very slowly. It throws me forward and then thrusts me back into the headrest.
2024 Volvo C40 · Electrical System · filed with NHTSA Jun 29, 2025 · ODI 11670052
Front camera stop working . Today it's the second time. Not sure if a software glitch but first time need to be replaced
2024 Volvo XC40 · Electrical System · filed with NHTSA Jul 5, 2026 · ODI 11748329
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the electrical system
Source: same model, same component group57 other manufacturer communications filed against these Volvo models under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Volvo list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 37103.6.0 | Service bulletin | May 13, 2026 | This is a Technical Journal: Check Engine Light/DIM message and ISGM DTC P056200 or in combination with all the DTCs |
| 37103.4.0 | Service bulletin | Mar 7, 2026 | This is a Technical Journal: Check Engine Light/DIM message and ISGM DTC P056200 or in combination with all the DTCs |
| 37376.3.0 | Service bulletin | Mar 4, 2026 | This is a Technical Journal: Propulsion Message with DTC BECM P0A9500 and/or P0E2F00. Check the following parameters below. Utilize the High… |
| TJ37103.3.0-2025-11-13 | Service bulletin | Nov 19, 2025 | This is a Technical Journal: Check Engine Light/DIM message and ISGM DTC P056200 or in combination with all the DTCs |
| 37376 | Service bulletin | Oct 22, 2025 | This is a Technical Journal: Propulsion Message with DTC BECM P0A9500 and/or P0E2F00. Perform a "High-voltage system overview" read out. If… |
| 37451 | Service bulletin | Jul 31, 2025 | 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… |
| 37103 | Service bulletin | Jul 23, 2025 | This is a Technical Journal: Check Engine Light/DIM message and ISGM DTC P056200. |
| 36916 | Service bulletin | Jul 2, 2025 | This is a Technical Journal: VCM Backup Battery Replacement with VCM-U105000. Replace the VCM Backup Battery and download the relevant Softw… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Volvo, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Volvo 37474 a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the 37474 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.
Which vehicles does 37474 cover?
The manufacturer filed it against 8 model years: 2024 Volvo C40, 2026 Volvo EC40, 2025 Volvo EC40, 2025 Volvo EX40, 2026 Volvo XC40, 2025 Volvo XC40 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.