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Service bulletin SSM 51656

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10237335
Published by NHTSA2023-06-05
Manufacturer's numberSSM 51656
Manufacturer's date2023-05-23
NHTSA componentPOWER TRAIN

NHTSA's summary

Some 2022-2023 F-150/Bronco/Expedition/Navigator/Escape/Corsair/Bronco Sport/Edge/Mustang vehicles built on 04-Sep-2022 and through 30-Dec-2022 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0230 stored in the powertrain control module (PCM). The vehicle may also experience a no start or stall after start. This may be due to an internal PCM issue. If this DTC is present, verify the battery condition, then perform pin point test (PPT) KC of the Work Shop Manual (WSM), Section 310-01. If PPT KC leads to component replacement, start with replacing the PCM and then evaluate the vehicle. If the DTC returns, follow WSM, Section 310-01 PPT KC direction to address the issue.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Transmission and driveline

Trouble codes named

P0230

Vehicles listed
FORD BRONCO2022, 2023
FORD BRONCO SPORT2022, 2023
FORD EDGE2022, 2023
FORD ESCAPE2023
FORD EXPEDITION2023
FORD F-1502022, 2023
FORD MUSTANG2022, 2023
LINCOLN CORSAIR2022
LINCOLN NAVIGATOR2023

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20261882026-04-15. Powertrain
26V2360002026-04-14. POWER TRAIN:AUTOMATIC TRANSMISSION
20256912025-12-12. Powertrain
25V8630002025-12-12. POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:PARK PAWL
20254142025-08-08. Powertrain
25V5120002025-08-08. POWER TRAIN:AXLE HUBS
25V1580002025-03-14. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM
25V1330002025-02-28. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
20242702024-05-10. Powertrain
24V3300002024-05-10. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SSM 552212026-10-12. Service bulletin. For 20222026 vehicles equipped with a 8F35 transmission, a revision to the Road Testing Vehicle procedure has been made in the WSM, Section 307-01 > Diagnosis and Testing. This updated procedure improves the diagnosis of customer reported transmission concerns and aids in locating the proper root cause. During diagnosis and testing, details regarding whether the condition is more prevalent when the vehicle is hot or cold, throttle percentage at the time of occurrence, vehicle speed, the specific shift involved, and whether the issue occurs during transmission engagements (N>R, N>D, R>D, and/or D>R) should be noted in the warranty claim. Engineering requests including these detailed operating conditions that will significantly assist with root cause analysis. Diagnosis, testing, and repair should use established labor times outside this article.
TSB 26-24282026-10-02. Service bulletin. This bulletin supersedes 25-2326. Reason for update: update the service procedure to include the fuel tank isolation valve replacement, update the causal part number, and increase the labor time allowance to include the fuel tank isolation valve replacement. Some of the vehicles listed in the Model statement above may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P2450 stored in the powertrain control module (PCM). This may be due to the software in the PCM and/or the fuel tank isolation valve.
TSB 26-24282026-10-02. Service bulletin. This bulletin supersedes 25-2326. Reason for update: update the service procedure to include the fuel tank isolation valve replacement, update the causal part number, and increase the labor time allowance to include the fuel tank isolation valve replacement. Some of the vehicles listed in the Model statement above may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P2450 stored in the powertrain control module (PCM). This may be due to the software in the PCM and/or the fuel tank isolation valve.
TSB 26-2341 v22026-10-01. Service bulletin. This bulletin supersedes 26-2171. Reasons for update: update the Parts list to add a note to clarify the application of the part numbers W520102-S442 and 4S4Z-3N324-AA "FWD Only". Some of the vehicles listed in the Model statement above may exhibit all of the following conditions: Shudder condition, most noticeable at speeds below 60 mph (100 km/h) No relevant diagnostic trouble codes (DTC) present Traceable shudder event with IDS/FDRS reading *(Figure 1)* This condition may be perceived/felt as an engine misfire. This may be due to a concern with the output planetary assembly.
TSB 26-24082026-09-30. Service bulletin. 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 W520514-S440, and add L1MZ-7Z490-G valve body separator plate for Aviator. Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: * Harsh 3-4, 4-5 upshifts * Harsh 5-3, 4-3 downshifts * Harsh reverse engagements These symptoms may be worse when cold. This may be due to the F clutch friction plates brinelling into the clutch and planetary container cylinder (7B177).
PCM-26.10.3 Bronco2026-09-21. Over-the-air update. 25S75 Recall remedy -Powertrain Control Module update to introduce logic to prevent low pressure fuel pump binding and maintain fuel flow to the engine.
TSB 26-24142026-09-14. Service bulletin. 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 Model statement above may exhibit all of the following conditions: * Intermittent or permanent no reverse (R) engagement * Illuminated MIL with DTC P0767 or P0765:7E stored in the powertrain control module (PCM) In addition to the required conditions, the vehicle may also exhibit a harsh reverse engagement, P0766, P0765:7F, P0736 and/or P2703 stored in the PCM. This may be due to an internal mechanical concern with the selectable one-way clutch (SOWC).
SSM 551422026-09-04. Service bulletin. Some 2023-2025 Escape vehicles built on or before 16-Sep-2024 equipped with 1.5L EcoBoost engine may exhibit an "Engine Coolant Over-Temperature" warning message displayed in the IPC and an illuminated MIL with DTCs P1285 and/or P1299 stored in the powertrain control module (PCM) during hard acceleration or under high load conditions. This may be due to machining chips trapped in the cylinder head causing a potential blockage in the coolant passage near the cylinder head temperature 2 (CHT2) port. To diagnose this condition, start the vehicle and idle for 15 minutes. Perform a road test at a temperature above -20°C (-4°F) and apply wide-open throttle (WOT) hard accelerations in rapid succession. If the concern cannot be replicated, drain and refill the coolant system. If the concern can be replicated, drain the coolant system. Perform the Engine Cooling System Flushing procedure in Workshop Manual (WSM) > 303-03A Engine Cooling - 1.5L EcoBoost > General Procedures. Do not use the VC1 flush additive. Reassemble the engine. Fill and bleed the coolant system and re-evaluate the concern. If the concern pers
TSB 26-23952026-09-01. Service bulletin. 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, and correct the part number LIMZ-4A015-B to L1MZ-4A015-B. Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: Harsh engagement Delayed engagement Harsh shift Delayed shift Illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC)s P0751, P0752, P0756, P0757, P0761, P0762, P0766, P0767, P0771, P0772, P2700, P2701, P2702, P2703, P2704, P2705, P2707, P2708, P0729, P0731, P0732, P0733, P0734, P0735, P0736, P076F, P07D9, P07F6 and/or P07F7 stored in the powertrain control module (PCM) or transmission control module (TCM). This may be due to axial movement of the CDF clutch cylinder sleeve causing hydraulic circuit leaks. NOTE: If internal transmission service is required to address a concern detected with the CDF clutch cylinder following this article, technicians should carefully inspect and replace other transmission components and flush transmission fluid cooler only as ne
SSM 550882026-08-20. Service bulletin. 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 ambient temperatures of 100°F (38°C) or higher. In addition, there are no diagnostic trouble codes (DTC) present related to A/C system functionality, refrigerant charge levels are to specification and system is free of refrigerant leaks and/or A/C compressor related concerns. Customers may also report that A/C system cooling will be restored once the vehicle starts moving or placed in park/neutral. This condition does not affect vehicle durability and no additional diagnosis or service is required for this condition at this time. Inform customers that they can continue to drive the vehicle and engineering is currently working on a solution for this condition that is expected in Q4 2026. Replacement or reprogramming of any components will not resolve this condition. Monitor Professional Technician System (PTS) for additional information and schedule service appointments for customers once the repair becomes available.If the vehicle exhibit