Ford bulletin TSB 26-2436
What it saysSome of the vehicles listed in the Model statement above may have diagnostic trouble code (DTC) P05B0 stored in the powertrain control module (PCM) during a self-test. NHTSA’s full summary ↓
Ford filed this with NHTSA as a service bulletin dated Oct 30, 2026, received Nov 2, 2026, about the power train. It names 3 model years (2023–2025). 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 communicationWhat it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
Some of the vehicles listed in the Model statement above may have diagnostic trouble code (DTC) P05B0 stored in the powertrain control module (PCM) during a self-test. An illuminated malfunction indicator lamp (MIL) will be present on 2024-2025 vehicles with DTC P05B0 stored in the PCM. This may be due to a damaged lower active grill shutter housing end stops and/or vane lobe (allowing for over travel) or a lower active grill shutter actuator.
Trouble codes it names: P05B0
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB 26-2436 | Service bulletin | Oct 30, 2026 | 11038911 | PDF, 784 KB |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| ML3Z-8475-E | Lower Active Grille | — | eBay Motors → |
| NL3Z-8475-B | Lower Active Grille | — | eBay Motors → |
| RL3Z-8475-C | Lower Active Grille | — | eBay Motors → |
| NL3Z-8475-A | Active Grille Shutter | — | eBay Motors → |
| ML3Z-10884-E | Lower Active Grille | — | eBay Motors → |
| NL3Z-10884-A | Active Grille Shutter | — | eBay Motors → |
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 262436A | Replace The Lower Active Grille Shutter Actuator | 0.4 hrs |
| 262436B | Replace The Lower Active Grille Shutter Actuator | 0.8 hrs |
| 262436C | Replace The Lower Active Grille Shutter Housing | 2.3 hrs |
| 262436D | Replace The Lower Active Grille Shutter Housing | 2.8 hrs |
| 262436E | Replace The Lower Active Grille Shutter Actuator | 2.4 hrs |
| 262436F | Replace The Lower Active Grille Shutter Housing | 2.5 hrs |
Read by machine from the document NHTSA serves (6 pages), read Nov 4, 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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
Find the body for the 2025 F-150 →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.
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 874 complaints with NHTSA since 2015. 501 of them name Power Train, Electrical System — 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.
**2025 Ford F-150 – Repeated Wiring Harness Damage** I am reporting two separate incidents involving a 2025 Ford F-150 that resulted in significant damage to vehicle wiring harnesses and required replacement of major wiring components. On March 4, 2026, the vehicle sustained wiring damage during a dog-related incident.
2025 Ford F-150 · Electrical System · filed with NHTSA Aug 28, 2026 · ODI 11760396
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
A Powertrain Malfunction/Reduced Power light showed up on my 2024 Ford F150 4x4 (9700 miles) and again and several other times including today. I immediately took it to Ford of Columbia in Columbia TN, and the diagnoses that there was an issue with the Gear Shift Lever Module (Part #RL3Z7210AD) and it was ordered.
2024 Ford F-150 · Power Train · filed with NHTSA Sep 22, 2025 · ODI 11689055
In depth: 2024 Ford F-150 transmission and drivetrain problems → · 2024 Ford F-150 electrical problems → · 2023 Ford F-150 transmission and drivetrain problems → · 2023 Ford F-150 electrical 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 group124 other manufacturer communications filed against the Ford F-150 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 26-2448 | 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… |
| 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… |
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 TSB 26-2436 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 26-2436 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 26-2436 cover?
The manufacturer filed it against 3 model years: 2025 Ford F-150, 2024 Ford F-150, 2023 Ford F-150. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: 2023-2025 F-150: built on or before 1 May 2025 — the build date is on the certification label in the driver’s door jamb.