Volvo bulletin 37201
What it saysThis is a Technical Journal: Intermittent Knocking Noise During Acceleration. NHTSA’s full summary ↓
Volvo filed this with NHTSA as a service bulletin dated Feb 28, 2025, received Mar 27, 2025, about the power train. It names 1 model year (2025). 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: Intermittent Knocking Noise During Acceleration. This intermittent knocking noise can occur during acceleration, usually during the beginning of the driving cycle when vehicle is cold. If the sound corresponds to attached sound file, change the front driveshafts
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 37201 | Service bulletin | Feb 28, 2025 | 11016014 |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 36011827 | Left front driveshaft | — | eBay Motors → |
| 36011828 | Right front driveshaft | — | eBay Motors → |
Read by machine from the document NHTSA serves (2 pages), read Sep 30, 2026. A part number is shown only where it matches Volvo’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
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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 1 model year this bulletin names have filed 74 complaints with NHTSA since 2015. 10 of them name Power Train — 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.
1. The passenger side daytime fog light occasionally fails to operate, which could be a safety concern in certain driving conditions. 2. The one-pedal drive feature automatically switches off, even though it is saved in my profile. This may present a hazard if I accelerate as if one-pedal drive is still active. 3.
2025 Volvo EX90 · Power Train · filed with NHTSA Oct 7, 2025 · ODI 11691768
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 power train
Source: same model, same component group6 other manufacturer communications filed against the Volvo EX90 under the same component group (power train), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 36496.10.0 | Service bulletin | May 7, 2026 | This is a Technical Journal: Intermittent knocking noise during acceleration. If the sound corresponds to attached sound file, change front… |
| 37140 | Service bulletin | Jan 15, 2026 | This is a Technical Journal, Text and mp3 - Listen to the attached sound file, TJ-37140_1.mp, as an example of this noise.… |
| TJ37490.2.0-2025-10-29 | Service bulletin | Nov 14, 2025 | This is a TJ Text only no attachments - The breakpoint for the latest (third) GHCA hardware generation is serial number S00053758, which rep… |
| 37197 | Service bulletin | Mar 11, 2025 | This is a Technical Journal: Howling Noise From The EFAD. Replace. |
| S10306 | Service campaign | Mar 1, 2025 | Volvo Cars USA LLC and Volvo Car Canada LTD on behalf of the Volvo Car Corporation has decided to launch Service Action S10306 on certain mo… |
| 37195 | Service bulletin | Jan 9, 2025 | This is a Technical Journal: First Year Policy: ERAD / TVDC. No ERAD/TVDC units shall be opened or replaced without approval or request from… |
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 37201 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 37201 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 37201 cover?
The manufacturer filed it against 1 model year: 2025 Volvo EX90. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.