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Over-the-air update TCU-25.2.8.4 Nautilus

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)
TypeOver-the-air update
NHTSA id11025908
Published by NHTSA2025-12-02
Manufacturer's numberTCU-25.2.8.4 Nautilus
Manufacturer's date2025-11-04
Campaign id or software versionTCU-25.2.8.4
NHTSA componentUNKNOWN OR OTHER; ELECTRICAL SYSTEM

NHTSA's summary

"Quality improvements include: -Includes a recovery mechanism for memory data in the Telematics Control Unit"

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

Electrical system

Vehicles listed
LINCOLN NAUTILUS2024, 2025

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

Recalls for the same vehicles and component
26V1650002026-03-18. ELECTRICAL SYSTEM:ADAS; BACK OVER PREVENTION:SOFTWARE
25V3430002025-05-23. EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER; ELECTRICAL SYSTEM
25V3370002025-05-23. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

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 552202026-10-12. Service bulletin. Some 2024-2026 Nautilus and 2025-2026 Explorer/Aviator/Expedition/Navigator vehicles may experience Android Auto connection or general Bluetooth pairing concerns for both Android and IOS after an APIM software update. This may be due to the APIM software. To temporarily correct the issue:<br /><br /> * For Android Auto related issues: Clear Android Auto app storage in the center display screen. Vehicle Settings > Settings > Apps > Android Auto > Clear Storage. <br /> * For general Bluetooth connectivity issues: Clear Contacts Storage app storage in the center display screen. Vehicle Settings > Apps > Uncheck hide system apps > Contacts Storage > Clear Storage.<br /><br /> If the condition persists, perform a master reset from the center display screen, remove the vehicle from the phone, then re-pair the device.<br /><br /> If the condition continues to persist, refer to Workshop Manual (WSM), Section 415-00 for normal diagnostics and repair as necessary outside of this article.<br /><br /> If the condition is resolved, inform customers that engineering is currently working on a permanent solution
SSM 551402026-09-02. Service bulletin. Some 2025-2026 Maverick vehicles built on or before 05-Dec-2025 and 2024-2026 Nautilus vehicles built on or before 04-Sep-2025 may exhibit limited power and display "Stop Safely Now" or "Service Vehicle Soon" stored in the message center after start up with diagnostic trouble codes (DTC) P0A5D, P0A60, P0A63, P0A6F, P0A72, P0A75, and/or P0E52 stored in the inverter system controller (SOBDMC). The Ford Diagnostic and Repair System (FDRS) may refer to this module as the "Secondary On-Board Control Module C". If the vehicle exhibits these conditions, replace the inverter system controller. Refer to Workshop Manual, Section 307-01B. For claiming, use causal part 7B012 and labor operations 12651D and 12651D56. NOTE: This article does not remove any RVC, Prior Approval or Warranty and Policy requirements for component replacement.
SSM 551312026-09-02. Service bulletin. Some 2025-2026 Aviator/Explorer/Expedition/F-150/Mustang Mach-E/Nautilus/Navigator vehicles may exhibit the hands-free BlueCruise feature intermittently/consistently unavailable when BlueCruise is active and when traveling in a "Blue Zone". Speed sign recognition may also be inaccurate. If there are no active relevant diagnostic trouble codes (DTC) present and the issue persists after multiple key cycles and if the BlueCruise System Health Check passes, download and run the "TCU - Reset Telematics Control Unit (TCU) Module" application using the latest software level of the Ford Diagnosis and Repair System (FDRS). If the condition is resolved, inform customers that this may be a temporary fix and engineering is currently working on a solution expected in Q4 2026. Monitor Professional Technician System (PTS) for additional information and schedule service appointments for customers once the repair becomes available. For claiming, use causal 14G229 and labor operations 12651D and 12651D4. If the condition persists after a test drive, refer to Workshop Manual (WSM), Section 419-03B for normal
26B192026-09-01. Other. Recommended Repair Prior to Sale Customer Satisfaction Program 26B19 2024-2025 MY Nautilus 2.0L Hybrid Vehicles Powertrain Control Module (PCM) Update for Inspection and Maintenance Testing
SSM 551182026-09-01. Service bulletin. Some of the following vehicles: * 2023-2025 F-Super Duty built on or before 02-Feb-2025 * 2024-2026 Ranger/Bronco/Mustang * 2024-2025 F-150 built on or before 15-Jul-2025 * 2024-2025 Nautilus built on or before 16-Feb-2025 * 2025 Explorer/Aviator built on or before 01-Feb-2025 may exhibit all of the following symptoms: - "No Key Detected" message displayed on the instrument panel cluster (IPC). - Key fob does not work in the backup slot. - Remote keyless entry (RKE) (lock and unlock from the key fob) functionality will work to lock/unlock the vehicle. If the vehicle exhibits these symptoms, start the vehicle using both key fobs. If the no crank/no start condition with "No Key Detected" concern is present, reprogram both key fobs and retest. If the no crank/no start condition with "No Key Detected" is still present, replace the body control module (BCM). Refer to Workshop Manual (WSM), Section 419-10. For claiming, use causal part 15604 and labor operation MT55118SSM up to 1.8 hours.
SSM 551162026-09-01. Service bulletin. Some of the following vehicles: * 2025-2026 Expedition/Navigator built on or after 02-Feb-2025 * 2025-2026 F-Super Duty built on or after 02-Feb-2025 * 2025-2026 Explorer/Aviator built on or after 02-Feb-2025 * 2025-2026 Nautilus built on or after 17-Feb-2025 * 2025-2026 F-150 built on or after 16-Jul-2025 may exhibit all of the following symptoms: - "No Key Detected" message displayed on the instrument panel cluster (IPC) - Key fob does not work in the backup slot. - Remote keyless entry (RKE) (lock and unlock from the key fob) functionality will work to lock/unlock the vehicle. If the vehicle exhibits these symptoms, manually enter the vehicle identification number (VIN) into the VIN entry dialog in the Ford Diagnosis and Repair System (FDRS) and then start a session using the Vehicle Communication Module (VCM) II, VCM 3, Vehicle Communication and Measurement Module (VCMM) or later level device with a universal serial bus (USB) cable disconnected from the laptop. Download the "BCM - Body Control Module (BCM) Hardware Test" app
SSM 551032026-09-01. Service bulletin. Some 2024-2026 Nautilus vehicles may exhibit an inoperative segment or individual light emitting diode (LED) in the rear mounted deck lid lamp assembly (part of the rear lamp assembly). To correct this condition, replacement of the finished assembly (13A565) is not required. To repair, replace the rear mounted deck lid lamp sub-assembly (13434) and transfer components from the original rear liftgate lamp. Refer to Workshop Manual (WSM), Section 417-01 > Removal and Installation > Rear Lamp Assembly and perform Steps 9-11.
SSM 550812026-08-20. Service bulletin. Some 2024 Nautilus vehicles built on or before 23-Jan-2024 may exhibit a condition where the rear door power windows are locked when the child lock is off, and the rear door power windows are unlocked when the child lock is on. This may be due to the software in the body control module (BCM). To correct this condition, download and run the "BCM - Body Control Module (BCM) Software Update" application using the latest software version of the Ford Diagnosis and Repair System (FDRS) scan tool. For claiming, use causal part 15604 and labor operations 12651D and BCM.
PHX-26.2.0.11 Nautilus2026-08-18. Over-the-air update. 26S51 Recall remedy: -Accessory Protocol Interface Module update to mitigate the loss of the pedestrian warning sound
SSM 550712026-08-11. Service bulletin. Some 2025-2026 Aviator/Explorer/Expedition/F-150/Mustang Mach-E/Navigator vehicles may exhibit the hands-free BlueCruise feature intermittently/consistently unavailable when BlueCruise is active and when traveling in a "Blue Zone". Speed sign recognition may also be inaccurate. If there are no active relevant diagnostic trouble codes (DTC) present and the issue persists after multiple key cycles and if the BlueCruise System Health Check passes, download and run the "TCU - Reset Telematics Control Unit (TCU) Module" application using the latest software level of the Ford Diagnosis and Repair System (FDRS). If the condition is resolved, inform customers that this may be a temporary fix and engineering is currently working on a solution expected in Q4 2026. Monitor Professional Technician System (PTS) for additional information and schedule service appointments for customers once the repair becomes available. For claiming, use causal 14G229 and labor operations 12651D and 12651D4. If the condition persists after a test drive, refer to Workshop Manual (WSM), Section 419-03B for normal diagnosti