Ford bulletin 24N01
What it saysCertain 2020-2022 Model Year Explorer Vehicles Rear Axle Bolt Fractures In some of the affected vehicles, the rear axle bolt may fracture. NHTSA’s full summary ↓
Ford filed this with NHTSA as a service bulletin dated Jul 4, 2024, received Aug 7, 2024, about the power train. It names 3 model years (2020–2022). 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 communicationCertain 2020-2022 Model Year Explorer Vehicles Rear Axle Bolt Fractures In some of the affected vehicles, the rear axle bolt may fracture. A fractured rear axle bolt will allow the rear axle housing to move out of position, resulting in severe noise and vibration. If the rear axle bolt breaks, the driveshaft or half shafts may become disconnected, resulting in loss of transmission torque to the rear wheels. Transmission torque is necessary to hold the vehicle in park and is also needed for the vehicle to move forward or backward.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 24N01 | Service bulletin | Jul 4, 2024 | 11006038 | PDF, 4,524 KB |
What the document itself lists
The manufacturer titles it “Customer Satisfaction Program 24N01”.
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| L1MZ-4B425-D | Revised Rear Subframe Bushing | 1 | eBay Motors → |
| L1MZ-4033-C | Differential Axle Cover Housing | 1 | eBay Motors → |
| W719362-S439 | Toe Link to Knuckle Bolt (1 required – 4 in a pack) | 1 | eBay Motors → |
| W520516-S441 | Toe Link to Knuckle Nut | 1 | eBay Motors → |
| W714297-S440 | Lower Arm to Knuckle Nut (1 required – 2 in a pack) | 1 | eBay Motors → |
| W720988-S439 | Differential Axle Rear Cover Housing Bolt to Rear | — | eBay Motors → |
| W717867-S900 | Differential Axle Front Bushing Housing Support Bolts | — | eBay Motors → |
| W719459-S439 | Upper Arm to Knuckle Bolt (1 required – 4 in a pack) | 1 | eBay Motors → |
| W520214-S440 | Upper Arm to Knuckle Nut (1 required – 2 in a pack) | 1 | eBay Motors → |
| W720034-S440 | Shock Absorber Lower Nut (1 required – 4 in a pack) | 1 | eBay Motors → |
| LB5Z-3B477-A | Wheel Hub Nut | 1 | eBay Motors → |
| W717822-S439 | Driveshaft Center Bearing Bolts | — | eBay Motors → |
| W719511-S439 | Flexplate Coupling to Transmission Bolts | — | eBay Motors → |
| L1MZ-3C084-A | Halfshaft Seal | 2 | eBay Motors → |
| W719430-S439 | Brake Caliper Bolts (2 required – 4 in a pack) | 2 | eBay Motors → |
| XY-75W85-QL | Differential Oil | 2 | eBay Motors → |
| WSK-M2G351-A6 | equivalent – Specification | — | eBay Motors → |
Read by machine from the document NHTSA serves (30 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 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 1,988 complaints with NHTSA since 2015. 704 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 2020 Ford Explorer, the 190 owners who gave an odometer reading for Power Train reported it at a median of 44,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
A Police Officer's Ford Explorer Interceptor Hybrid SUV while driving had a vehicle malfunction where the rear wheels began to wobble/vibrate and while driving in a straight line with front wheels facing straight caused the vehicle to fishtail out of the control (loss of control to the rear wheels) and slam into a tree at approximately…
2021 Ford Explorer · Power Train · filed with NHTSA Nov 20, 2023 · ODI 11556088
On my 2020 police interceptor through a no issue for the transmission, failing at early mileage, jerking in a drive and slamming gears when shifting and low gears, I believe the component is the CDF drum in the transmission, which is thousands of dollars to fix Ford offered to replace it under warranty, but the issue typically doesn’t…
2020 Ford Explorer · Power Train · filed with NHTSA Aug 18, 2026 · ODI 11757821
When the vehicle was started this morning, it sounded like it was chugging and did not wasn’t to stay on. Then when the driver went to drive, he got the notification on my dash to stop safely and the engine was disabled. The check engine light was on, as well as the battery light was on, and the warning light was on.
2020 Ford Explorer · Power Train · filed with NHTSA Apr 30, 2026 · ODI 11734767
In depth: 2022 Ford Explorer transmission and drivetrain problems → · 2021 Ford Explorer transmission and drivetrain problems → · 2020 Ford Explorer 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 group67 other manufacturer communications filed against the Ford Explorer 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 26-2408 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… |
| 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… |
| SSM55059 | Service bulletin | Aug 3, 2026 | Some 2021-2023 F-150 vehicles equipped with a 3.5L PowerBoost engine, 2020-2026 Explorer vehicles equipped with a 3.3L hybrid engine, and 20… |
| TSB 26-2309 | Service bulletin | Jul 2, 2026 | This bulletin supersedes 26-2241. Reason For Update: update the parts list to correct the claim quantity of the part number JB3Z-4B496-B fro… |
| TSB 26-2287 | Service bulletin | Jun 18, 2026 | This article supersedes 25-2302. Reason for update: update the labor time allowance for F-150 vehicles, update the Parts list to replace the… |
| SSM 54902 | Service bulletin | Jun 5, 2026 | For 20202026 vehicles equipped with the 10R60 transmission, a new Transmission Clutch Circuit Leak Test has been introduced in the Ford D… |
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 24N01 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 24N01 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 24N01 cover?
The manufacturer filed it against 3 model years: 2022 Ford Explorer, 2021 Ford Explorer, 2020 Ford Explorer. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.