Ford bulletin SSM 53968
What it saysSome 2024-2025 F-150 Lightning and 2025 Mustang Mach-E vehicles may exhibit various intermittent inoperative climate control symptoms with diagnostic trouble code (DTC) B1717:06 in the heat pump valve control module… NHTSA’s full summary ↓
Ford filed this with NHTSA as a service bulletin dated Jun 25, 2025, received Jul 2, 2025, about the engine. It names 3 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 communicationSome 2024-2025 F-150 Lightning and 2025 Mustang Mach-E vehicles may exhibit various intermittent inoperative climate control symptoms with diagnostic trouble code (DTC) B1717:06 in the heat pump valve control module (HPVCM). Workshop Manual (WSM), Section 412-00 Climate Control System - General Information > Diagnosis and Testing > Pinpoint Test AW has been updated to address this condition. Refer to the revised WSM section for normal diagnosis.
Trouble codes it names: B1717
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| SSM 53968 | Service bulletin | Jun 25, 2025 | 11020040 | PDF, 70 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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What owners reported
Source: NHTSA complaint databaseOwners of the 3 model years this bulletin names have filed 54 complaints with NHTSA since 2015. 2 of them name Engine — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
Bought car in March 2026. Twice while driving car in heavy traffic on highway using BlueCruise car slowed down on its own and warning message read "vehicle is stopping" (this happened first in early July and again in mid-August). Both times happened while in middle lane of traffic, creating safety concern for pulling over.
2025 Ford Mustang Mach-E · Engine · filed with NHTSA Oct 9, 2026 · ODI 11770103
Description On your vehicle, the integrated park module ipm may not properly engage the park pawl, preventing the vehicle from locking into park when park p is selected. If this condition occurs, a wrench light and shift system fault message will be displayed in the instrument panel cluster.
2025 Ford F-150 Lightning · Engine · filed with NHTSA Jun 15, 2026 · ODI 11744290
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 engine
Source: same model, same component group2 other manufacturer communications filed against these Ford models under the same component group (engine), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SSM 54387 | Service bulletin | Nov 18, 2025 | Some 2021-2024 Mustang Mach-E vehicles may exhibit a condition where the interior propulsion sound feature does not remain active and deacti… |
| SSM 52211 | Service bulletin | Jan 26, 2024 | Some 2023 F-150 Lightning vehicles built on or after 31-Jul-2023 may exhibit DTC P2DA6 stored in the secondary on board diagnostic module C… |
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 53968 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 53968 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 53968 cover?
The manufacturer filed it against 3 model years: 2025 Ford F-150 Lightning, 2024 Ford F-150 Lightning, 2025 Ford Mustang Mach-E. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.