Ford bulletin SSM 50615
What it saysSome 2017-2022 Ford GT vehicles may exhibit diagnostic trouble code (DTC) P166B present in the gear shift module (GSM) after an on-demand self test is performed. NHTSA’s full summary ↓
Ford filed this with NHTSA as a service bulletin dated Mar 18, 2022, received Mar 22, 2022, about the power train. It names 6 model years (2017–2022). 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 communicationSome 2017-2022 Ford GT vehicles may exhibit diagnostic trouble code (DTC) P166B present in the gear shift module (GSM) after an on-demand self test is performed. This is likely due to the driver door not being fully closed and locked during the on-demand self-test. A false P166B DTC can set if the driver door is not fully closed or if it is unlocked during the self-test. If P166B is still present with the driver door fully closed and locked during the on-demand self-test, continue with normal diagnostics in Workshop Manual (WSM), Section 307-05.
Trouble codes it names: P166B
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| SSM 50615 | Service bulletin | Mar 18, 2022 | 10209220 | PDF, 112 KB |
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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More bulletins about the power train
Source: same model, same component group1 other manufacturer communication filed against the Ford GT under the same component group (power train), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SSM 52314 | Service bulletin | Mar 1, 2024 | During service and repair requiring removal and replacement of a crankshaft bolt and/or crankshaft damper, achieving proper torque of the cr… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Ford, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Ford SSM 50615 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 SSM 50615 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 SSM 50615 cover?
The manufacturer filed it against 6 model years: 2022 Ford GT, 2021 Ford GT, 2020 Ford GT, 2019 Ford GT, 2018 Ford GT, 2017 Ford GT. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.