Polestar bulletin 37923.1.1
What it saysThis is a TJ - Text Only - No attachments - If the customer experiences a "Battery System Fault" warning message and the vehicle will not start, follow the advice under service. NHTSA’s full summary ↓
Polestar filed this with NHTSA as a service bulletin dated Sep 17, 2026, received Oct 5, 2026. It names 2 model years (2024–2025). 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 TJ - Text Only - No attachments - If the customer experiences a "Battery System Fault" warning message and the vehicle will not start, follow the advice under service. Updated software version under Service Improved software was released with version 3.0.33, Perform a total upgrade to bring the vehicle to the latest software.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 37923.1.1 | Service bulletin | Sep 17, 2026 | 11037951 |
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: 2024 Polestar Polestar 3.
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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A weekly email, sent only in a week when Polestar files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.
What owners reported
Source: NHTSA complaint databaseOwners of the 1 model year this bulletin names have filed 79 complaints with NHTSA since 2015.
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.
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Polestar, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Polestar 37923.1.1 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 37923.1.1 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 37923.1.1 cover?
The manufacturer filed it against 2 model years: 2025 Polestar 3, 2024 Polestar Polestar 3. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.