Volkswagen over-the-air update 91OL
What it saysThis OTA update provides improvements to connectivity stability and OCU module diagnostics, which will reduce OCU module replacements due to false DTC detection. NHTSA’s full summary ↓
Volkswagen filed this with NHTSA as an over-the-air update dated Sep 7, 2026, received Oct 6, 2026 — 3 documents under this number: Email 91OL, Dealer 91OL, Bulletin 91OL. It names 7 model years (2023–2024). An over-the-air update is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis OTA update provides improvements to connectivity stability and OCU module diagnostics, which will reduce OCU module replacements due to false DTC detection. This software update is also a prerequisite for future updates.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| Email 91OL | Over-the-air update | Sep 7, 2026 | 11038142 | |
| Dealer 91OL | Service bulletin | Sep 3, 2026 | 11038141 | |
| Bulletin 91OL | Service bulletin | Sep 3, 2026 | 11038140 |
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 7 model years this bulletin names have filed 559 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 Volkswagen, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Volkswagen 91OL a recall?
No. A over-the-air update 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 91OL repair free?
A over-the-air update is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does 91OL cover?
The manufacturer filed it against 7 model years: 2023 Volkswagen Atlas, 2024 Volkswagen Jetta, 2023 Volkswagen Jetta, 2024 Volkswagen Taos, 2023 Volkswagen Taos, 2024 Volkswagen Tiguan and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.