Ford bulletin SSM 52477
What it saysSome 2023-2024 F-Super Duty vehicles may exhibit various diagnostic trouble codes (DTCs) related to the steering angle sensor. NHTSA’s full summary ↓
Ford filed this with NHTSA as a service bulletin dated Apr 24, 2024, received May 3, 2024, about the steering. It names 14 model years (2023–2024). 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 2023-2024 F-Super Duty vehicles may exhibit various diagnostic trouble codes (DTCs) related to the steering angle sensor. Prior to any diagnosis, determine if the vehicle is equipped with an electronic steering actuator (ESA), also referred to as the power steering control module (PSCM), so appropriate pinpoint tests are followed. The ESA is located on the steering shaft and can be seen through the left fender opening or under the hood near the driver's side frame rail. Refer to the Workshop Manual (WSM), Section 211-02 for images as needed. For vehicles equipped with an ESA, the steering angle sensor is integrated into the ESA. For vehicles not equipped with ESA, the steering angle sensor is integrated into the steering column control module, behind the clockspring. The pinpoint tests for the steering angle sensor in the WSM will specify what test or steps to follow based on presence of ESA. Failure to follow the proper pinpoint test may lead to improper diagnosis and repair.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| SSM 52477 | Service bulletin | Apr 24, 2024 | 10254140 | PDF, 67 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 themAlso filed against model years this site has no page for: 2023 Ford F-550 SD; 2024 Ford F-550 SD; 2023 Ford F-600 SD; 2024 Ford F-600 SD; 2024 Ford F-650 Incomplete Chassis; 2023 Ford F-650 SD; 2023 Ford F-750 SD; 2024 Ford F-750 SD.
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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What owners reported
Source: NHTSA complaint databaseOwners of the 6 model years this bulletin names have filed 179 complaints with NHTSA since 2015. 6 of them name Steering — 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.
The contact owns a 2024 Ford F-250. The contact stated that while driving at an undisclosed speed, the steering wheel inadvertently turned the vehicle to the right. Additionally, there was play in the steering wheel. Due to the failure, the contact was pulled over by police for DUI.
2024 Ford F-250 Super Duty · Steering · filed with NHTSA Jan 29, 2026
I was driving the truck and applied the brakes to slow down for a turn, the anti-lock brake system activated and I lost the power steering and power brakes. There is steering fluid all over the engine so apparently either a line broke or the reservoir broke.
2023 Ford F-450 Super Duty · Steering · filed with NHTSA Oct 29, 2024
My rear camera repeatedly freezes in a picture or does not come on. My steering has lost most of its fluid twice and I was told this was normal air bleading out. My truck has stopped itself while traveling down the road without any obstruction.
2023 Ford F-350 Super Duty · Steering · filed with NHTSA Oct 3, 2024
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 steering
Source: same model, same component group11 other manufacturer communications filed against these Ford models under the same component group (steering), newest first. The eight newest are listed; the rest are on the Ford list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SCCM-26.AA | Over-the-air update | Apr 29, 2026 | Quality improvements include: -Addresses potential key off load battery usage caused by the Steering Column Control Module keeping the Contr… |
| SSM 54763 | Service bulletin | Apr 22, 2026 | Some 2025-2026 F-Super Duty vehicles built without lane departure warning (built with minor feature code HLEAA) and 2025-2026 Expedition/Nav… |
| 26H01 | Other | Apr 17, 2026 | Harvest Program 26H01 Certain 2024 Model Year F-250 and F-350 Vehicles Steering Column Replacement |
| SSM 54594 | Service bulletin | Feb 18, 2026 | Some 2023-2026 F-Super Duty vehicles may exhibit rain sensitive wipers (if equipped) settings that do not change when selected in the center… |
| SSM 54333 | Service bulletin | Oct 28, 2025 | Some 2023-2025 F-Super Duty vehicles may exhibit a no crank/no start or intermittent no crank/no start with multiple warning indicators and… |
| SSM 54180 | Service bulletin | Aug 29, 2025 | Some 2026 F-Super Duty vehicles may require retrieval of the factory keycode for factory installed wired keyless entry keypads. If Ford Diag… |
| SSM 53066 | Service bulletin | Oct 22, 2024 | Some 2023-2024 F-Super Duty vehicles may exhibit various steering concerns such as perceived looseness and/or wander. WSM, Section 211-02 an… |
| SSM 52524 | Service bulletin | May 9, 2024 | Some 2023-2024 F-Super Duty vehicles built on 22-May-2023 and through 15-Dec-2023 may require repairs of the power steering system for vario… |
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 52477 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 52477 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 52477 cover?
The manufacturer filed it against 14 model years: 2024 Ford F-250 Super Duty, 2023 Ford F-250 Super Duty, 2024 Ford F-350 Super Duty, 2023 Ford F-350 Super Duty, 2024 Ford F-450 Super Duty, 2023 Ford F-450 Super Duty and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.