Volvo bulletin 36447.4.0
What it saysThis is a Technical Journal: Call button in the OHC might not be lit. NHTSA’s full summary ↓
Volvo filed this with NHTSA as a service bulletin dated Apr 23, 2024, received May 8, 2024, about the electrical system. It names 12 model years (2022–2023). 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: Call button in the OHC might not be lit. Perform a total upgrade according to TJ 31543.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 36447.4.0 | Service bulletin | Apr 23, 2024 | 10254398 | PDF, 503 KB |
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 themA 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 12 model years this bulletin names have filed 305 complaints with NHTSA since 2015. 103 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.
A/C failed to turn on. This is the second time this has occurred. It was on a 100 degree Texas day. I was already in the vehicle and it was so hot in the vehicle I was worried about a heat stroke. It caused a distraction while driving because the electrical components weren’t functioning as intended potentially causing an accident.
2022 Volvo XC60 · Electrical System · filed with NHTSA Sep 17, 2022 · ODI 11484994
On November 11, 2023 @ between 10:30 and noon, the vehicle infotainment system completely failed. The screen went blank and functions for heat, radio, navigation, cameras, indicator lights in the mirror and the ability to call Volvo emergency services were all lost. A message on the screen said, "Stop the vehicle.
2023 Volvo XC60 · Electrical System · filed with NHTSA Nov 12, 2023 · ODI 11554722
In the middle of a cold snowstorm the screen froze and started glitching. As I was trying to change the drive mode to all wheel drive the ESC off button triggered and ESC stayed off without AWD mode and screen was unresponsive. Had to pull over and turn car off and back on for screen to reset
2022 Volvo XC90 · Electrical System · filed with NHTSA Feb 25, 2026 · ODI 11720490
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 group90 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 |
|---|---|---|---|
| 37373.8.0 | Service bulletin | Jul 28, 2026 | This is a Technical Journal: DIM Message and DTC BECM P0C7800. If the DIM displays a message stating "Drive System Service Required" and the… |
| 36863.4.0 | Service bulletin | Jul 28, 2026 | 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 u… |
| 37373.7.0 | Service bulletin | May 22, 2026 | This is a Technical Journal: DIM Message and DTC BECM P0C7800. If the DIM displays a message stating "Drive System Service Required" and th… |
| 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 |
| 34295.9.0 | Service bulletin | Mar 10, 2026 | This is a Technical Journal: Text plus 2 attachments 1 PDF and 1 PNG - High Voltage Battery repairs. Always repair the battery according to… |
| 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… |
| 37474 | Service bulletin | Feb 3, 2026 | This is a Technical Journal: DC Charging Power Limited to 150 kW. Vehicles equipped with the large HBAT27 (82?kWh) battery are capable of DC… |
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 36447.4.0 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 36447.4.0 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 36447.4.0 cover?
The manufacturer filed it against 12 model years: 2023 Volvo C40, 2022 Volvo C40, 2023 Volvo S60, 2023 Volvo S90, 2022 Volvo S90, 2023 Volvo V60 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.