Ford bulletin TSB 25-2627
What it saysThis article supersedes TSB 25-2552 to update the Parts List Some of the vehicles listed in the Model statement above may exhibit all of the following conditions: Shudder chatter condition, most noticeable at low… NHTSA’s full summary ↓
Ford filed this with NHTSA as a service bulletin dated Feb 9, 2026, received Feb 12, 2026, about the power train. It names 28 model years across Ford and Lincoln (2019–2024). 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.
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 communicationThis article supersedes TSB 25-2552 to update the Parts List Some of the vehicles listed in the Model statement above may exhibit all of the following conditions: Shudder chatter condition, most noticeable at low speeds turning No diagnostic trouble codes DTCs present This may be due to rear drive unit internal (RDU) fluid contamination.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB 25-2627 | Service bulletin | Feb 9, 2026 | 11028804 | PDF, 1,857 KB |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| W720472-S439 | Caliper Bolt (Maverick, Bronco Sport, Escape Only) | — | eBay Motors → |
| W719466-S439 | Wheel Hub Bolt (Maverick, Bronco Sport, Escape Only) | — | eBay Motors → |
| K2GZ-4022-M | RDU Vent Hose (Bronco Sport 1.5L, Escape 1.5L/2.0L) | — | eBay Motors → |
| LX6Z-4022-C | RDU Vent Hose (Bronco Sport 2.0L) | — | eBay Motors → |
| LX6Z-4022-H | RDU Vent Hose (Escape 2.5L FHEV) | — | eBay Motors → |
| K2GZ-7C108-A | RDU Clutch Kit | — | eBay Motors → |
| W720080-S439 | RDU Mount Bolt | — | eBay Motors → |
| LX6Z-5A215-D | Exhaust Clamp | — | eBay Motors → |
| LX6Z-4B496-A | Driveshaft Bolt Kit | 1 | eBay Motors → |
| NZ6Z-3B498-A | Axle Cir-clip Retainer | — | eBay Motors → |
| CCPZ-3B477-B | Axle Nut | — | eBay Motors → |
| CV6Z-4B416-D | Axle Seal | — | eBay Motors → |
| W718014-S450 | Stud Rivet | — | eBay Motors → |
| 6C2Z-4N282-AA | Drain Plug | — | eBay Motors → |
| SU7Z-19B508-A | — | — | eBay Motors → |
| XY-75W-QL | Motorcraft® SAE 75W Disconnect Rear Drive Unit Fluid | — | eBay Motors → |
| W720473-S439 | Caliper Bolt | — | eBay Motors → |
| W720079-S900 | RDU Bolt | — | eBay Motors → |
| W720678-S439 | Wheel Hub Bolt | — | eBay Motors → |
| W720526-S450B | Fuel Tank Strap Fastener | — | eBay Motors → |
| K2GZ-4022-L | RDU Vent Hose | — | eBay Motors → |
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 252627A | 2019-2024 Edge, 2019-2023 Nautilus: Drain And Refill The RDU (Do Not Use With Any… | 0.4 hrs |
| 252627B | — | 0.8 hrs |
| 252627C | 2021-2024 Bronco Sport 1.5L EcoBoost: Install The Internal Clutch Pack Service Kit… | 6.1 hrs |
| 252627D | 2020-2024 Corsair: Install The Internal Clutch Pack Service Kit, Inspect RDU Vent… | 8.2 hrs |
| 252627E | 2020-2024 Escape 1.5L EcoBoost: Install The Internal Clutch Pack Service Kit… | 6.1 hrs |
| 252627F | 2020-2024 Escape 2.0L EcoBoost: Install The Internal Clutch Pack Service Kit… | 6 hrs |
| 252627G | 2020-2024 Escape 2.5L HEV: Install The Internal Clutch Pack Service Kit, Inspect RDU… | 6.1 hrs |
| 252627H | 2022-2024 Maverick 2.0L EcoBoost: Install The Internal Clutch Pack Service Kit (Do… | 5.6 hrs |
| 252627J | 2020-2022 Escape/Corsair AWD: Extra Time To Replace The RDU Vent Hose Following The… | 0.6 hrs |
| 252627K | 2021-2023 Bronco Sport 1.5L: Extra Time To Replace The RDU Vent Hose Following The… | 0.6 hrs |
Read by machine from the document NHTSA serves (8 pages), read Sep 29, 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 18 model years
Lincoln 10 model years
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 28 model years this bulletin names have filed 7,220 complaints with NHTSA since 2015. 1,863 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 2019 Ford Edge, the 106 owners who gave an odometer reading for Power Train reported it at a median of 70,911 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
The transmission jerks at low speeds between 10mph-60mph. Has been duplicated at Lincoln dealership. A torque converter was replaced , but did not correct problem. I know that there is a class action suit for this problem for 2019-2021 it needs to add the 2022 suv also. Lincoln paid for parts , I paid labor . Total repair was 2200$
2022 Lincoln Nautilus · Power Train · filed with NHTSA Mar 6, 2026
Transmission realized a catastrophic and destructive failure. The vehicle immediately lost power and speed. Scattering debris and transmission fluid on the highway. Causing a safety concern for me and other drivers. Confirmed by a dealer. Inspected by the dealer. I experienced irregular transmission shifts and shuttering at times.
2021 Lincoln Corsair · Power Train · filed with NHTSA Nov 11, 2025
In three occasions the automatic transmission has stopped working, operating under normal city driving conditions. Turning the car off and on again, it has worked properly. The car has less than 4000 miles. I took it to the Ford repair shop and there is a defect in the hybrid transmission, and it will take 4-6 weeks to be solved.
2020 Ford Escape · Power Train · filed with NHTSA Aug 16, 2021
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 group81 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 26-2341 v2 | Service bulletin | Sep 17, 2026 | This bulletin supersedes 26-2171. Reasons for update: update the Parts list to add a note to clarify the application of the part numbers W52… |
| TSB 26-2414 | Service bulletin | Sep 14, 2026 | This article supersedes 26-2058 Reason for update: update the TSB title and TSB issue to include new DTCs Some of the vehicles listed in the… |
| SSM 55142 | Service bulletin | Sep 1, 2026 | Some 2023-2025 Escape vehicles built on or before 16-Sep-2024 equipped with 1.5L EcoBoost engine may exhibit an "Engine Coolant Over-Tempera… |
| SSM 55088 | Service bulletin | Aug 14, 2026 | Some 2023-2024 Bronco Sport vehicles equipped with a 1.5L may exhibit a lack of air conditioning (A/C) cooling while at a stop and idling in… |
| TSB 26-2341 | Service bulletin | Jul 23, 2026 | This bulletin supersedes 26-2171. Reasons for update: update the Parts list to add a note to clarify the application of the part numbers W52… |
| TSB 26-2328 | Service bulletin | Jul 15, 2026 | This bulletin supersedes 26-2194. Reason for update: update the Parts list to correct a part description " Loctite 638", update the claim qu… |
| SSM 54939 | Service bulletin | Jun 16, 2026 | Some 2020-2026 Corsair/Escape, 2021-2026 Bronco Sport, and 2022-2026 Maverick vehicles equipped with an 8F35 transmission may exhibit a shud… |
| SSM 54924 | Service bulletin | Jun 12, 2026 | Some 2024-2026 Nautilus vehicles equipped with an 8F35 transmission may exhibit an illuminated malfunction indicator lamp (MIL) with diagnos… |
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 TSB 25-2627 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 TSB 25-2627 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 TSB 25-2627 cover?
The manufacturer filed it against 28 model years across 2 brands (Ford and Lincoln): 2024 Ford Bronco Sport, 2023 Ford Bronco Sport, 2022 Ford Bronco Sport, 2021 Ford Bronco Sport, 2024 Ford Edge, 2023 Ford Edge and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.