Ford bulletin 23B71
What it saysCertain 2023 Model Year F150, Expedition, Navigators equipped with 8.8 inch Front Axles - Front Axle Assembly Replacement NHTSA’s full summary ↓
Ford filed this with NHTSA as a service bulletin dated Feb 1, 2024, received Mar 5, 2024, about the power train. It names 3 model years across Ford and Lincoln (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.
One page for every brand it was filed under. Each brand’s bulletins: Ford · Lincoln.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationCertain 2023 Model Year F150, Expedition, Navigators equipped with 8.8 inch Front Axles - Front Axle Assembly Replacement
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 23B71 | Service bulletin | Feb 1, 2024 | 10251242 | PDF, 561 KB |
What the document itself lists
The manufacturer titles it “Customer Satisfaction Program 23B71”.
Part the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| NL3Z-3B403-H | F150 Raptor Front axle assembly | — | eBay Motors → |
Read by machine from the document NHTSA serves (15 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.
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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 themFord 2 model years
Lincoln 1 model year
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 3 model years this bulletin names have filed 585 complaints with NHTSA since 2015. 205 of them name Power Train — 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.
On the 2023 Ford F-150, the 42 owners who gave an odometer reading for Power Train reported it at a median of 30,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
EIWE (Electronic Integrated Wheel End) failure or malfunction. Ford has multiple Field Service Engineers aware of the issue with no fix found. Multiple vehicles not only at one dealership but across the country have confirmed issues. Ford Customer Relations is aware and has an open case with me and many other owners.
2023 Ford F-150 · Power Train · filed with NHTSA Dec 9, 2023 · ODI 11559262
The contact owns a 2023 Ford Expedition. The contact stated while driving at an undisclosed speed, the contact noticed a hard shift from the transmission. The vehicle was taken to the dealer; however, the failure was not duplicated. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer.
2023 Ford Expedition · Power Train · filed with NHTSA Sep 23, 2024 · ODI 11615968
In depth: 2023 Ford F-150 transmission and drivetrain problems →
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 group138 other manufacturer communications filed against these Ford models under the same component group (power train), newest first. The eight newest are listed; the rest are on the Ford list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TSB 26-2436 | Service bulletin | Oct 30, 2026 | Some of the vehicles listed in the Model statement above may have diagnostic trouble code (DTC) P05B0 stored in the powertrain control modul… |
| TSB 26-2448 | Service bulletin | Oct 27, 2026 | This bulletin supersedes 25-2236. Reason for update: To consolidate prior articles and revise the Service Procedure to add an AAD blade limi… |
| TSB 26-2408 v2 | Service bulletin | Oct 22, 2026 | This bulletin supersedes 26-2309. Reason for update: update the Model section to remove Aviator 10R80, update theParts list to add 3.3L to W… |
| TSB 26-2431 | Service bulletin | Oct 21, 2026 | This bulletin supersedes 26-2226. Reason For Update: update the Service Procedure for 2021-2022 F-150 3.5L EcoBoost vehicles with the new Fo… |
| TSB 26-2408 | Service bulletin | Sep 22, 2026 | This bulletin supersedes 26-2309. Reason For Update: update the Model section to remove Aviator 10R80, update the Parts list to add 3.3L to… |
| 26E03 | Emissions | Sep 17, 2026 | Certain 2026 Model Year F-150 Raptor Vehicles With 3.5L Engines Powertrain Control Module (PCM) Software Update |
| TSB 26-2395 | Service bulletin | Aug 26, 2026 | This article supersedes 26-2287. Reason for update: update the labor operation numbers to add MT to operations C, F, G, H, J, K, L and M, an… |
| TSB 26-2360 | Service bulletin | Aug 5, 2026 | Some of the vehicles listed in the Model Statement above may exhibit an intermittent extended crank with no relevant diagnostic trouble code… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Ford and Lincoln, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Ford 23B71 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 23B71 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 23B71 cover?
The manufacturer filed it against 3 model years across 2 brands (Ford and Lincoln): 2023 Ford Expedition, 2023 Ford F-150, 2023 Lincoln Navigator. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.