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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.

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
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 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 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.
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.
SSM 485582020-03-03. Service bulletin. ELECTRICAL SYSTEM. SSM 48558 - 2017-2020 Various Vehicles Equipped With Telematics Control Unit (TCU) - Various FordPass/LincolnWay Mobile App Concerns 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 485522020-03-03. Service bulletin. ELECTRICAL SYSTEM. SSM 48552 - 2020 Various Vehicles - Equipped With SYNC 3 - System Stating "In Michigan" When Using Push To Talk Navigation Some 2020 Ford and Lincoln vehicles equipped with SYNC 3 may exhibit the infotainment system stating in Michiganwhen 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 May. Please monitor OASIS for additional information and schedule service appointments for customers once the repair becomes available.
SSM 485512020-03-03. Service bulletin. ELECTRICAL SYSTEM. SSM 48551 - 2020 Various Vehicles Equipped With SYNC 3 Various SYNC Performance Related Concerns Some 2020 Ford and Lincoln vehicles equipped with SYNC 3 may exhibit various performance related concerns such as: intermittent frozen or blank screen, voice prompts with excessive pause between words, remote start not able to be scheduled from Ford Pass or Lincoln Way, Sirius Travel link not working properly, CarPlay not launching on connection or a black screen when connected. To correct this condition, check for SYNC software update on FDRS or Oasis under SYNC the section. If an update is available, refer to WSM section 415-00 to update the APIM software. If the problem persists after programming or no update is available, refer to WSM, Section 415-00 for diagnosis. For claiming, use causal part 14G371 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 484442020-02-04. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. 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 not functioning, no repair attempts should be made to correct this condition. If the remote start system is not functioning using the key fob and/or the on-demand remote start function from FordPass or Lincolnway application, refer to Workshop Manual (WSM), Section 303-06 for further diagnosis. Do not attempt repairs at this time. Engineering is currently investigating, monitor OASIS for updates.
SSM 483882020-01-08. Service bulletin. ELECTRICAL SYSTEM; STEERING. Some 2020 Mustang vehicles built on or before 04-Sep-2019 may exhibit a U3000:62 DTC set in the PSCM. This may be accompanied by a slightly different steering feel, which will return to normal after one key cycle. To correct this condition, update the PSCM using the latest software level of the appropriate Ford diagnostic scan tool. For claiming use causal part 3504 and applicable labor times in Section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 483832020-01-08. Service bulletin. ELECTRICAL SYSTEM. Some 2020 Explorer, Aviator, Ecosport, Mustang, Escape or Corsair may have a symptom of no ability to schedule a remote start event using the Fordpass or Lincolnway app. This may be due to the current level SYNC software installed. To correct this condition, program the SYNC module utilizing section 415 of the workshop manual. If no update is available or the problem persists after programming, verify that the Fordpass or Lincolnway app is activated properly as per the owners guide. For claiming, use causal part 14G371 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 483392019-12-05. Service bulletin. ELECTRICAL SYSTEM. Some 2020 Ford and Lincoln vehicles equipped with a TCU may exhibit incomplete user authorization and/or no authorization pop-up received on the SYNC infotainment system. Verify that Customer Connectivity Settings (CCS) are turned ON from the SYNC infotainment system, the vehicle ignition is on, and the vehicle is in an area with cellular coverage. Then select Activate Vehicle on the Ford Pass/Lincoln Way mobile app. If the concern persists, delete the VIN from the mobile app, re-add the VIN, and select Activate Vehicle. 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.

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