Volkswagen service campaign 37HT
What it saysA small number of vehicles were equipped with an incorrect differential race in the transmission. NHTSA’s full summary ↓
Volkswagen filed this with NHTSA as a service campaign dated May 22, 2026, received Jun 4, 2026, about the power train — 2 documents under this number: Circular 37HT, Dealer 37HT. It names 1 model year (2026). A service campaign 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 communicationPicked out of NHTSA’s summary below, word for word. The document itself is the record, and the dealer checks the VIN.
A small number of vehicles were equipped with an incorrect differential race in the transmission. Under this service action, dealers will replace the transmission at no cost to owners
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| Circular 37HT | Service campaign | May 22, 2026 | 11033521 | |
| Dealer 37HT | Service campaign | May 21, 2026 | 11033523 |
What the document itself lists
Part the bulletin names
| Part number | Description | Qty |
|---|---|---|
| 09H-300-035-M | AUTO.G/ BOX | — |
Read by machine from the document NHTSA serves (10 pages), read Sep 30, 2026. A part number is shown only where it matches Volkswagen’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.
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 14 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.
More bulletins about the power train
Source: same model, same component group9 other manufacturer communications filed against the Volkswagen Atlas under the same component group (power train), newest first. The eight newest are listed; the rest are on the Volkswagen list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SM 04-2026 | Other | Aug 11, 2026 | This special notice is to inform dealers to return the parts listed and only order the successor parts going forward. |
| V4015022033347_8 | Service bulletin | Aug 10, 2026 | Replacement instruction |
| 54A3 | Service bulletin | Aug 3, 2026 | Programming update of the transmission control module -J217- |
| V3925012079347_2 | Service bulletin | Jun 1, 2026 | Diagnosis of bevel box leaks |
| 50B5 | Service bulletin | Mar 24, 2026 | Update Software Programming Transmission Control Module -J217- |
| V3718022033975_14 | Service bulletin | Oct 14, 2025 | Cautions about using aftermarket transmission flush machines and aftermarket transmission fluids. |
| V3416022034406_8 | Service bulletin | Oct 9, 2025 | Diagnosing Manual Transmission Noise |
| VWP-25-16 | Warranty extension | Sep 15, 2025 | For applicable Settlement Class Vehicles, the New Vehicle Limited Warranty will be extended to cover 50% of the repair or replacement of the… |
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 37HT a recall?
No. A service campaign 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 37HT repair free?
A service campaign 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 37HT cover?
The manufacturer filed it against 1 model year: 2026 Volkswagen Atlas. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.