Ford bulletin 23B10
What it saysCertain 2023 Model Year Bronco Vehicles Front and Rear Engine Under shields Replacement NHTSA’s full summary ↓
Ford filed this with NHTSA as a service bulletin dated Jul 24, 2023, received Aug 3, 2023, about the engine. It names 1 model year (2023). 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 communicationCertain 2023 Model Year Bronco Vehicles Front and Rear Engine Under shields Replacement
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 23B10 | Service bulletin | Jul 24, 2023 | 10240416 | PDF, 262 KB |
What the document itself lists
The manufacturer titles it “Customer Satisfaction Program 23B10”.
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| MB3Z-5D032-B | KIT-SKID PLATE, METAL | 1 | eBay Motors → |
| MB3Z-5B018-A | PLT FR FRT C/M | 1 | eBay Motors → |
Read by machine from the document NHTSA serves (12 pages), read Sep 30, 2026. A part number is shown only where it matches Ford’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. Listings and prices on eBay Motors are the seller’s.
Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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 230 complaints with NHTSA since 2015. 21 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.
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 group23 other manufacturer communications filed against the Ford Bronco under the same component group (engine), newest first. The eight newest are listed; the rest are on the Ford list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SSM 55228 | Service bulletin | Oct 8, 2026 | Some 2020-2026 Aviator/Explorer/F-150/Bronco/Ranger vehicles equipped with a 2.7L or 3.0L (non-diesel) engine may need the front engine cove… |
| 25B51 | Other | May 9, 2026 | Certain 2021-2024 Model Year Bronco, 2021-2024 Model Year Bronco Sport, 2020-2022 Model Year Corsair and Escape, 2016-2024 Model Year Explor… |
| 24N12 S2 | Other | Mar 31, 2026 | Certain 2021 - 2022 Model Year Various Vehicles Engine Valve Inspection Test This submission includes : Technical Instructions Updated word… |
| SSM 54544 | Service bulletin | Feb 2, 2026 | Some 2025 Bronco/Ranger vehicles equipped with a 2.7L EcoBoost engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagn… |
| SSM 54451 | Service bulletin | Dec 18, 2025 | Some 2025 Bronco/Ranger vehicles equipped with a 2.3L EcoBoost engine may exhibit an illuminated malfunction indicator lamp (MIL) with only… |
| SSM 54275 | Service bulletin | Oct 7, 2025 | Some 2021-2023 Explorer vehicles equipped with a 3.0L EcoBoost engine, 2021-2023 Aviator vehicles equipped with a 3.0L EcoBoost or 3.0L plug… |
| 25H03 | Other | Sep 3, 2025 | Harvest Program 25H03 Certain 2024 - 2025 Model Year Bronco, Bronco Sport, Corsair, Escape, Explorer, Maverick, Mustang, and Ranger Vehicle… |
| PCM-25.10.0 | Over-the-air update | Sep 2, 2025 | Quality improvements include: -Addresses a potential Malfunction Indicator Lamp caused by two Diagnostic Trouble Codes triggered by a random… |
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 23B10 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 23B10 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 23B10 cover?
The manufacturer filed it against 1 model year: 2023 Ford Bronco. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.