Volvo bulletin 37774.1.0
Volvo filed this with NHTSA as a service bulletin dated Jul 28, 2026, received Aug 18, 2026, about the exterior lighting. It names 15 model years (2019–2026). 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.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis is a TJ - Text plus 1 PDF attachment - f the headlamp horizontal light aim cannot be adjusted via the set screw, If the horizontal light aim cannot be adjusted because the cogwheel knob is broken, do not replace the entire headlamp. Instead, use the spare part kit part number 32476677 to replace the affected component, please follow the instructions under "Service".
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 37774.1.0 | Service bulletin | Jul 28, 2026 | 11036257 | not yet checked |
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.
Common questions
Source: NHTSA, 49 CFR 579.5Is Volvo 37774.1.0 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 37774.1.0 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 37774.1.0 cover?
The manufacturer filed it against 15 model years: 2025 Volvo S60, 2024 Volvo S60, 2023 Volvo S60, 2022 Volvo S60, 2021 Volvo S60, 2020 Volvo S60 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.