WenmarOpen by Wenmar Pro

Service bulletins for the 2020 Ford Mustang

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.

184 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
SSM 491812020-10-06. Service bulletin. ELECTRICAL SYSTEM. Some 2020 Mustang GT500 vehicles may exhibit a lack of power and/or an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P1288. If this is found to be caused by a damaged supercharger drive assembly, be aware that it is now available to service separately from the supercharger assembly. Refer to the parts catalog and Workshop Manual (WSM), Section 303-12.
SSM 491532020-10-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Some 2019-2020 Mustang vehicles equipped with a 5.0L engine and a manual transmission may exhibit a malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P086A, P086B, P086C, P086D P086E, P08AE, P08AF, P08B0, P08B2, P095A, P095B, P095C and/or P095D present. Workshop Manual (WSM) diagnostics have recently been updated to assist in better diagnosis of these DTCs. Refer to WSM,
TSB 20-23012020-10-01. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE; BACK OVER PREVENTION: CAMERA SYSTEM. Some 2019 MKZ, 2019-2020 Mustang/Continental/Fusion/F-150/Transit Connect/ Ranger/Edge/Nautilus and 2020 Escape/Corsair/Aviator/Explorer/Expedition/ Navigator/F-Super Duty vehicles with SYNC 3 may experience various SYNC performance related concerns. To correct the condition, follow the Service Procedure.
SSM 490852020-09-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; ENGINE. Some 2020 Ford and Lincoln vehicles equipped with a TCU may exhibit incomplete user authorization, no authorization pop-up on the SYNC infotainment system, vehicle connectivity concerns, vehicle location disabled message and/or various FordPass/LincolnWay App command/control concerns. To correct these conditions, ensure that customer connectivity settings (CCS) are turned on in the SYNC system. If the concerns persist after CCS is turned on, turn CCS OFF, perform an ignition cycle, and turn CCS settings back on. After any CCS changes, force-close and relaunch the FordPass/ LincolnWay app on the customers phone. Once CCS is turned on, program the TCU to the latest IDS/FDRS version level. If the concern is still present, follow normal diagnostics in Workshop Manual (WSM), Section 415-00. Refer to PTS OASIS home page for TCU version identification. For claiming, use causal part 14G229.
SSM 490842020-09-04. Service bulletin. ELECTRICAL SYSTEM. Some 2017-2020 Ford and Lincoln vehicles equipped with a TCU may exhibit inoperative remote features via Ford Pass/Lincoln Way mobile app , incomplete user authorization and/or no modem electronic serial number (ESN) displayed. To correct this condition prior to programming, remove the TCU fuse for 5 minutes then reinstall. Delete all previous session files for the vehicle. Verify that the electronic serial number (ESN) is now displayed. Start a new IDS/FDRS session. Program the TCU to the latest IDS/FDRS version level. Make sure you are connected to the internet before retesting. If the concern is still present, follow normal diagnostics in Workshop Manual(WSM), Section 415-00. Refer to PTS OASIS home page for TCU version identification. For claiming, use causal part 14G229 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 490662020-09-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Some 2020 Ford and Lincoln vehicles equipped with SYNC 3 may not be able to properly disable remote start through the SYNC interface. This may be due to the current level SYNC software installed. To correct this condition, program the SYNC module. Refer to Workshop Manual (WSM), Section 415-00. If no update is available or the condition persists after programming, refer to WSM, Section 303-06 for further diagnosis. The remote start can be disabled in one of three methods: (1) leaving the hood open, (2) de-activation through the SYNC System Customer Preferences (refer to SYNC settings in the Owner's Manual), or (3) disconnecting the 12 Volt Battery. Refer to WSM, Section 100-00 for further information on remote start disabling.
SSM 490442020-09-04. Service bulletin. ENGINE AND ENGINE COOLING. Some 2020 Mustang vehicles may exhibit a concern of being unable to crank the engine. This will be accompanied by a B1026 DTC and a message in the instrument cluster indicating a steering lock module fault. This may be due to a fault with the body control module (BCM) software. Reprogram the BCM to correct this condition. Refer to Workshop Manual (WSM), Section 419-10. For claiming, use causal part 15604 and any applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 491322020-09-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. Some 2020 Mustang GT500 vehicles may exhibit various concerns with the exhaust tailpipe actuators. Workshop Manual (WSM) diagnostics have recently been updated to assist in better diagnosis of these concerns. Refer to WSM, Section 303-14D.
SSM 490962020-09-02. Service bulletin. ELECTRICAL SYSTEM. Some 2020 Mustang vehicles may exhibit a concern of the decklid not opening when it is attempted to be open when a valid key is within range of the vehicle. There may also be a concern where the horn gives a double chirp noise when locking the vehicle. This may be due to a fault with the body control module (BCM) software. Reprogram the BCM to correct this condition. Refer to Workshop Manual (WSM), Section 419-10. For claiming, use causal part 15604 and any applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
TSB 20-22592020-09-02. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Some 2019 MKZ, 2019-2020 Mustang/Continental/Fusion/F-150/Transit Connect/ Ranger/Edge/Nautilus and 2020 Escape/Corsair/Aviator/Explorer/Expedition/ Navigator/F-Super Duty vehicles with SYNC 3 may experience various SYNC performance related concerns. To correct the condition, follow the Service Procedure
TSB 20-21982020-09-02. Service bulletin. POWER TRAIN. This article supersedes TSB 20-2083 to update the vehicle model years affected. Some 2019-2020 Ranger and 2020 F-150/Mustang vehicles equipped with a 10R80 transmission and built on 21-Oct-2019 and through 16-Dec-2019 may exhibit a high-pitched whine coming from the transmission at low speeds during light acceleration or coasting. This may be due to the outer output shaft bearing. To correct the condition, follow the Service Procedure steps to replace the transmission inner output shaft bearing, fluid passage sleeve and outer output shaft bearing.
TSB 20-22332020-08-06. Service bulletin. STRUCTURE. This article supersedes TSB 19-2026 to update the vehicle model years affected. Some 2000 and newer Ford/Lincoln/Mercury vehicles equipped with aluminum body panels may exhibit corrosion concerns appearing as bubbled and/or peeling paint with or without accompanying white dust. Panel replacement is recommended.
SSM 490332020-08-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; BACK OVER PREVENTION. Some 2020 F150/Nautilus/Expedition/Transit/Edge/Escape/Mustang vehicles built on or before 21-Jun-2020 may exhibit various front and/or rear parking aid camera concerns such as poor image quality, flickering and/or completely inoperative. If a vehicle exhibits this condition, replace the affected camera(s). Refer to Workshop Manual (WSM), Section 41313. For claiming, use causal part 19G490 and any applicable labor operations in Section 11 of the Service Labor Time Standards (SLTS) Manual.
SSM 489962020-08-04. Service bulletin. ELECTRICAL SYSTEM. Some 2020 Mustang vehicles built on or before 23-Jun-2020 may exhibit a concern of being unable to shut off the engine. This may be due to a fault internal to the body control module (BCM). Replace the BCM to correct this condition. Refer to Workshop Manual (WSM), Section 419-10. For claiming, use causal part 15604 and any applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 489082020-07-07. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Some 2016-2020 Ford and Lincoln vehicles equipped with a SYNC 3 Touchscreen may experience the volume control unresponsive from the Front Control Interface Module (FCIM) and steering volume controls when using Apple Car Play. When the Apple device is removed, volume control is restored. This is due to a concern with the Waze Navigation App software and Apple iOS version. To correct the condition, update the Waze App software and iOS to the latest version available and reboot the customer's Apple device. Perform an ignition cycle and reconnect the Apple device via USB. Open Apple Car Play and confirm volume control is restored. Installing/Updating third party software/applications is not warrantable.
SSM 488642020-07-07. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Some 2020 Ford and Lincoln vehicles equipped with SYNC 3 may exhibit the infotainment system stating in Michigan when trying to select a point of interest using the push to talk feature on the navigation system. Engineering is currently working on a solution for this condition, which is expected to be available in July. Please monitor OASIS for additional information and schedule service appointments for customers once the repair becomes available.
TSB 20-21712020-06-05. Service bulletin. STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS; SEATS. Some 2013-2018 C-Max, 2013-2020 Escape/Fusion/MKZ, 2015-2018 Focus,2015-2019 MKC, 2015-2020 Edge/F150/Mustang, 2016-2018 MKX, 2016-2019 Explorer, 2017-2020 F-Super Duty, 2018-2020 EcoSport/Expedition, 2019-2020 Ranger/Nautilus vehicles may experience seat pan looseness, lateral movement, or a clunk/thump noise on turns. This may be due to the seat pan track. To correct the condition, follow the Service Procedure steps to install a reinforcement.
SSM 488582020-06-04. Service bulletin. ELECTRICAL SYSTEM. Some 2012-2020 Ford and Lincoln vehicles equipped with a TCU may exhibit an inoperative remote start with a 'Vehicle Failed To Start' message when using MyFord Mobile/Ford Pass/Lincoln Way mobile applications. The cellular cloud systems will only allow two remote start requests from the MyFord Mobile/Ford Pass/Lincoln Way apps without a vehicle drive event occurring. If a third remote start request is received, a Vehicle Failed To Start message will be displayed quickly in the mobile app. Once the vehicle is driven, the remote start counter is reset and will allow remote start commands to be sent from the mobile app. If the remote start system is not functioning using the key fob, refer to Workshop Manual (WSM) Section 303-06 for further diagnosis.
SSM 487572020-05-04. Service bulletin. ELECTRICAL SYSTEM. Some customers may experience a notification in the FordPass and/or LincolnWay apps that indicates their vehicle has entered "deep sleep mode". This mode is enabled due to the vehicle not being started for 14 consecutive days or battery voltage is at/or below 9.5 volts. Some 2020 models will also set a warning if the telematic control unit (TCU) has received an automatic over the air update. The purpose of deep sleep mode is to conserve battery voltage. When deep sleep mode is enabled, the TCU is powered down and all communication with the FordPass and/or LincolnWay apps are disabled. To wake the vehicle from deep sleep mode, manually start the vehicle. More deep sleep mode information can be found in the FordPass or LincolnWay apps under: More > Guides > click in search entry box > type "deep sleep" and click on "Ask".
SSM 486602020-04-02. Service bulletin. LATCHES/LOCKS/LINKAGES. SSM 48660 - 2020 Mustang Shelby GT500 - Hood Ajar Indicator Illuminated And Message Displayed, Proper Procedure To Close The Hood Some 2020 Mustang Shelby GT500 vehicles may exhibit a hood ajar indicator being illuminated, and/or a hood ajar message displayed in the information display. This may be due to the hood not being fully closed. To close the hood properly, lower the hood and allow it to drop under its own weight for the last 20-30 cm (812 in). The hood pins should not be utilized for indication of hood ajar position, proper adjustment or alignment. Refer to the 2020 Shelby GT500 Mustang Supplement for further information.
SSM 486512020-04-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. SSM 48651 - 2020 Mustang - No Start With Steering Lock Malfunction Message And Body Control Module (BCM) DTC B1026 Some 2020 Mustang vehicles may exhibit a no start with a Steering Lock Malfunction message on the Instrument Panel Cluster (IPC) and diagnostic trouble code (DTC) B1026 in the BCM. Prior to following workshop manual (WSM) diagnostics, disconnect the negative battery cable per WSM section 414-01, wait 10 seconds and reconnect. After battery reconnect, cycle the ignition key 3 times and retest for no start, steering lock malfunction message and DTC B1026 in the BCM. If the concern is resolved without DTC returning, no further repairs are necessary and engineering is currently investigating this condition. Continue to monitor OASIS for further details. If concern and/or DTC return, refer to WSM section 211-05 for normal diagnostics.
SSM 486492020-04-02. Service bulletin. UNKNOWN OR OTHER. SSM 48649 - 2020 Various Vehicles - Equipped With Telematics Control Unit (TCU) - Incomplete User Authorization, Vehicle Connectivity/Location And/Or FordPass/LincolnWay Concerns Some 2020 Ford and Lincoln vehicles equipped with a TCU may exhibit incomplete user authorization, no authorization pop-up on the SYNC infotainment system, vehicle connectivity concerns, vehicle location disabled message and/or various FordPass/LincolnWay App command/control concerns. To correct these conditions, ensure that customer connectivity settings (CCS) are turned on in the SYNC system. If the concerns persist after CCS is turned on, turn CCS OFF, perform an ignition cycle, and turn CCS settings back on. After any CCS changes, force-close and relaunch the FordPass/ LincolnWay app on the customers phone. Once CCS is turned on, program the TCU to the latest IDS/FDRS version level. If the concern is still present, follow normal diagnostics in Workshop Manual (WSM), Section 415-00. Refer to PTS OASIS home page for TCU version identification. For claiming, use causal part 14G229.
SSM 486192020-04-02. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. SSM 48619 - Various Vehicles - Perimeter Alarm Armed And Original Vehicle Keys Cannot Be Accessed to Enter Vehicle - CAN Protection Strategy Some 2013-2016 Model Year Vehicles may exhibit a concern in which the Perimeter Alarm is active and the original keys cannot be accessed to disable the perimeter alarm. This concern would most often occur when a customer loses keys and the dealership is attempting to program new keys to the vehicle. The Workshop Manual (WSM), Section 419-01A Perimeter Anti-Theft Alarm - System Operation and Component Description has been updated to inform of the Controller Area Network (CAN) Protection Strategy. Follow the procedure outlined to prevent replacement of the Body Control Module (BCM) on CAN Protection Strategy equipped vehicles when original keys are lost and perimeter alarm is active. Refer to the WSM for further detail on the CAN Protection Strategy. Lost keys and replacement of BCM for lost keys is non-warrantable.
TSB 20-20832020-04-02. Service bulletin. POWER TRAIN. Some 2020 F-150/Mustang/Ranger vehicles equipped with a 10R80 transmission and built on 21-Oct-2019 and through 16-Dec-2019 may exhibit a high-pitched whine noise coming from the transmission at low speeds during light acceleration or coasting. This may be due to the outer output shaft bearing. To correct the condition, follow the Service Procedure steps to replace the transmission inner output shaft bearing, fluid passage sleeve and outer output shaft bearing.
SSM 486182020-04-02. Service bulletin. ELECTRICAL SYSTEM. SSM 48618 - 2020 Various Vehicles - Equipped With SYNC 3 - Unable To Schedule Remote Start Using Fordpass Or Lincolnway Applications Some 2020 Ford and Lincoln vehicles may exhibit a symptom of no ability to schedule a remote start event using the FordPass or Lincolnway app. If only the scheduling portion of the remote start system is missing from the mobile app or not functioning, please ensure the customer has installed the latest version of the Ford Pass or Lincoln Way app from the mobile phones app store. The customer may also need to log out of the Ford Pass or Lincoln Way app, and then log back in. If the remote start system is not functioning using the key fob and/or the on-demand remote start function from Ford Pass or Lincoln Way application, refer to Workshop Manual (WSM), Section 303-06 for further diagnosis.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.