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Service bulletin SSM 50744

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 id10211728
Published by NHTSA2022-05-14
Manufacturer's numberSSM 50744
Manufacturer's date2022-05-04
NHTSA componentPOWER TRAIN

NHTSA's summary

Some 2013-2018 C-Max, 2013-2020 Fusion/MKZ, 2020-2022 Escape, 2021-2022 Corsair, 2022 Maverick vehicles equipped with HF35/HF45 hybrid transmissions can now be disassembled to repair and clean any contamination that may have been the result of a differential or transfer shaft bearing failure and the transmission can be overhauled/rebuilt. Service tools and service parts are now available. Refer to the Workshop Manual, Section 307-01.

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

Vehicles listed
FORD C-MAX2013, 2014, 2015, 2016, 2017, 2018
FORD ESCAPE2020, 2021, 2022
FORD FUSION2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
FORD FUSION ENERGI2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
FORD FUSION HYBRID2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
FORD MAVERICK2022
LINCOLN CORSAIR2021, 2022
LINCOLN MKZ2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
LINCOLN MKZ HYBRID2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it)

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

Recalls for the same vehicles and component
20262812026-06-09. Powertrain
26V3760002026-06-09. POWER TRAIN:MANUAL TRANSMISSION
25V8810002025-12-18. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
25V1580002025-03-14. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM
20251082025-03-02. Powertrain
25V1330002025-02-28. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
25V1270002025-02-28. ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
24V5900002024-08-09. ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; 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 26-23282026-07-20. Service bulletin. This bulletin supersedes 26-2194. Reason for update: update the Parts list to correct a part description " Loctite 638", update the claim quantity for the drain/fill plug, update the claim quantity of the wheel hub bolts (Corsair) and limited the parts list for Edge/Nautilus to only the rear drive unit fluid. 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 relevant diagnostic trouble codes (DTCs) present This may be due to internal rear drive unit (RDU) fluid contamination.
SSM 549802026-07-08. Service bulletin. Some 2022-2024 Maverick Hybrid vehicles may exhibit an intermittent vibration and/or crunching noise after a cold start while the engine is running with the vehicle stationary in drive with no throttle input and brakes applied. An intermittent engine rocking or rolling motion in one direction may also be observed while the concern is present with the hood open. The noise may be present with no drivability concerns, relevant diagnostic trouble codes (DTC) stored, warning indicators illuminated and/or warning messages displayed. The noise may reduce or be eliminated after several minutes of driving when the powertrain warms up. 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 Q3 of 2026. Replacement of the engine or transmission will not resolve this condition. Monitor Professional Technician System (PTS) for additional information and schedule
SSM 549392026-06-22. Service bulletin. Some 2020-2026 Corsair/Escape, 2021-2026 Bronco Sport, and 2022-2026 Maverick vehicles equipped with an 8F35 transmission may exhibit a shudder condition, most noticeable at speeds below 60 mph (100 km/h), with no relevant diagnostic trouble codes (DTC) stored in the powertrain control module (PCM). Sometimes, this may be perceived/felt as an engine misfire. This may be due to the torque converter. If Pinpoint Test K: Torque Converter Clutch Operation in Workshop Manual (WSM), Section 307-01 > Diagnosis and Testing > Diagnosis by Symptom directs to replace the torque converter, remove and replace the torque converter and torque converter seal. Refer to WSM, Section 307-01 > Removal and Installation > Torque Converter Seal. Remove the main control valve body. Refer to WSM, Section 307-01 > Removal and Installation > Main Control Valve Body. Overhaul and thoroughly clean the main control valve body. Refer to WSM, Section 307-01 > Overhaul > Main Control Valve Body. Reverse the removal procedure to reassemble the transmission. Install the transmission. Refer to WSM, Section 307-01 > Installation. For claim
25E012026-06-05. Emissions. Certain 2014-2016 Model Year Fusion Vehicles Equipped With 1.5L Engine - Powertrain Control Module (PCM) Reprogramming
SSM 547972026-05-08. Service bulletin. Some 2020-2026 Corsair/Escape, 2021-2026 Bronco Sport, and 2022-2026 Maverick vehicles equipped with an 8F35 transmission may exhibit a shudder condition, most noticeable at speeds below 60 mph (100 km/h), with no relevant diagnostic trouble codes (DTC) stored in the powertrain control module (PCM). Sometimes, this may be perceived/felt as an engine misfire. This may be due to the torque converter. If Pinpoint Test K: Torque Converter Clutch Operation in Workshop Manual (WSM), Section 307-01 > Diagnosis and Testing > Diagnosis by Symptom directs to replace the torque converter, remove and replace the torque converter and torque converter seal. Refer to WSM, Section 307-01 > Removal and Installation > Torque Converter Seal. Remove the main control valve body. Refer to WSM, Section 307-01 > Removal and Installation > Main Control Valve Body. Overhaul and thoroughly clean the main control valve body. Refer to WSM, Section 307-01 > Overhaul > Main Control Valve Body. Reverse the removal procedure to reassemble the transmission. Install the transmission. Refer to WSM, Section 307-01 > Installation.
TSB 26-21942026-04-28. Service bulletin. This bulletin supersedes 25-2627. Reason for update: To add a Step to reprogram the all-wheel drive (AWD) module for Bronco Sport vehicles. 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 relevant diagnostic trouble codes (DTCs) present This may be due to internal rear drive unit (RDU) fluid contamination.
25B612026-03-05. Other. Certain 2013-2014 Model Year Escape and 2013-2016 Fusion Vehicles Equipped with a 6F35 Transmission Shift Cable Bushing Inspection and Protective Service Cap Installation
SSM 546152026-03-04. Service bulletin. Some 2020-2026 Escape and 2021-2026 Corsair vehicles equipped with a 2.5L engine may exhibit a fuel door that won't open with diagnostic trouble code (DTC) P04CA stored in the powertrain control module (PCM). This may be due to an open circuit on circuit SBB05 and/or a damaged splice S133. Before performing the pinpoint test for P04CA in Workshop Manual (WSM), Section 310-00, inspect circuit SBB05 and splice S133 for damage such as an open circuit. Repair as necessary. Refer to Wiring Diagram, Cell 005. If no damage is found, refer to WSM, Section 310-00 for normal diagnostics. For claiming use causal 14290 and labor operations 12650D, 12650D45, and 12650D45WR.
TSB 25-26272026-02-12. Service bulletin. This 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.