Service bulletins for the 2024 LiveWire S2 Del Mar
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.
42 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with type: Service bulletin are shown. Show all
| M1490 | 2026-10-02. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM; UNKNOWN OR OTHER; ENGINE; POWER TRAIN. SERVICE BULLETIN M1490 (V 26.9.4): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES. PURPOSE: Revision. This bulletin informs dealers that Harley-Davidson has made a software update to Digital Technician II (DT II). DIGITAL TECHNICIAN II (PART NUMBER: HD-48650). New Software Update. NOTE: The TECHLINK 3 (PART NUMBER: HD-48650-TL3) supports Controller Area Network (CAN) and J-1850 protocol vehicles. • 6-pin CAN vehicles are recommended to use Techlink 3 (TL-3) • All 2021 (and later) vehicles must use TL-3 (connects to Red DLC on the vehicle) • 4-pin (J-1850) vehicles are recommended to use TL-3. This includes all Fuel Injected Harley-Davidson vehicles 2002 and later. TECHLINK 3 (PART NUMBER: HD-48650-TL3) will not support Buell, VDO and Magneti Marelli vehicles (4-pin DLC). Support for those vehicles is available via TECHLINK II (PART NUMBER: HD-48650-1). Version 26.9.4, Release Date: Week of September 17, 2026. New Features, Changes. NOTE: Software version (26.4.3) will need to be manually installed only if current software version of DT II is (26.0.2). After (26.4.3) is manually installed, automatic updates will bring DT II to the latest software version. Refer to bulletin M1713 for instructions. |
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| M1490 | 2026-08-06. Service bulletin. POWER TRAIN; WHEELS; VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. SERVICE BULLETIN M1490 (V 26.8.3): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES. PURPOSE: Revision. This bulletin informs dealers that Harley-Davidson has made a software update to Digital Technician II (DT II). DIGITAL TECHNICIAN II (PART NUMBER: HD-48650). Version Version 26.8.3, Release Date: Week of July 24, 2026. NOTE: Software version (26.4.3) will need to be manually installed only if current software version of DT II is (26.0.2). After (26.4.3) is manually installed, automatic updates will bring DT II to the latest software version. Refer to bulletin M1713 for instructions. New Features - Harley-Davidson: 2023-2024 Touring: Updated Electronic Control Module (ECM) calibration offerings. LiveWire: S2DM/MH/AP: Calibration bundle 10.2.28: Telematic Control Unit (TCU) reflash updates. Change: Vehicle Setup: Body Control Module (BCM) – Tire Pressure Monitoring System (TPMS) Replacement: Correct issue where tire size selections were not available. System Info – Auxiliary Load Controller (ALC): Added Bike configuration field. Data Items – Trike ECM: Improved display of Gear Position when in reverse. Amp – Added support for (Part No. 76001619). |
| M1490 | 2026-07-07. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM; POWER TRAIN. SERVICE BULLETIN M1490 (V 26.7.3): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES. PURPOSE: Revision. This bulletin informs dealers that Harley-Davidson has made a software update to Digital Technician II (DT II). DIGITAL TECHNICIAN II (PART NUMBER: HD-48650). Version 26.7.3. Release Date:• Week of June 11, 2026. NOTE Software version (26.4.3) will need to be manually installed only if current software version of DT II is (26.0.2). After (26.4.3) is manually installed, automatic updates will bring DT II to the latest software version. Refer to bulletin M1713 for instructions. |
| M1490 | 2026-05-08. Service bulletin. ENGINE; VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM; POWER TRAIN; FUEL/PROPULSION SYSTEM. SERVICE BULLETIN M1490 (V 26.6.2): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES. PURPOSE: Revision. This bulletin informs dealers that Harley-Davidson has made a software update to Digital Technician II (DT II). DIGITAL TECHNICIAN II (PART NUMBER: HD-48650). Version 26.6.2. Release Date: Week of April 22, 2026. NOTE: Software version (26.4.3) will need to be manually installed only if current software version of DT II is (26.0.2). After (26.4.3) is manually installed, automatic updates will bring DT II to the latest software version. Refer to bulletin M1713 for instructions. New Features: 2026 Police • Vehicle Setup: Civilianize; LiveWire • S2: Del Mar (S2DM), Mulholland (S2MH), Alpinista (S2AP) - Calibration bundle 10.2.20: Vehicle Supervisory Controller (VSC) and Onboard Charger (OBC) reflash updates. Changes: 2026 Trike • Update “Reverse Lockout Reason” resize column. |
| M1490 | 2026-04-08. Service bulletin. FUEL/PROPULSION SYSTEM; UNKNOWN OR OTHER; EXTERIOR LIGHTING; POWER TRAIN; ELECTRICAL SYSTEM. SERVICE BULLETIN M1490 (V 26.5.2): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES. PURPOSE: Revision. This bulletin informs dealers that Harley-Davidson has made a software update to Digital Technician II (DT II). DIGITAL TECHNICIAN II (PART NUMBER: HD-48650). Version 26.5.2 Release Date: Week of March 30, 2026. NOTE Software version (26.4.3) will need to be manually installed only if current software version of DT II is (26.0.2). After (26.4.3) is manually installed, automatic updates will bring DT II to the latest software version. Refer to bulletin M1713 for instructions. New Features. 2024: Pan America (RA1250), Pan America Special (RA1250S), CVO Pan America (RA1250SE) • Updated Body Control Module (BCM) reflash calibration. 2024-2026: CVO Road Glide ST (FLTRXSTSE) • Updated Electronic Control Module (ECM) reflash calibration. 2026: CVO Street Glide ST (FLHXSTSE) • Updated ECM reflash calibration. Changes. 2026 Trike • Update “Reverse Lockout Reason” to support new values, • “Vehicle setup: Gear Indicator Calibration” – improve operation. 2025-2026 Softail • Update reflash for Softail Speedometer (SPDO) – enable operation of auxiliary lamp telltale. LiveWire S2 • Provide reflash support for Vehicle Supervisory Controller (VSC) hardware (Part No. 41001756RE). |
| L1026 | 2026-04-08. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM; UNKNOWN OR OTHER. SERVICE BULLETIN L1026: TECH TIP 002 - S2 12 VOLT BATTERY BEST PRACTICES. PURPOSE: Initial Release. This bulletin informs dealers of best practices for diagnosing a LiveWire S2 vehicle that presents a depleted or fully-discharged 12 V battery and making sure contributing issues are identified. Use this bulletin’s troubleshooting guidance to help identify contributing issues affecting 12 V battery health. A depleted or fully discharged 12v battery may be the result of other systems or components affecting 12 V battery health. Or it may be the result of expected behavior relating to certain conditions the 12 V battery was exposed. |
| L1023 | 2026-01-09. Service bulletin. FUEL/PROPULSION SYSTEM; UNKNOWN OR OTHER; EXTERIOR LIGHTING; ELECTRICAL SYSTEM; POWER TRAIN. SERVICE BULLETIN L1023: 2024 S2 DEL MAR REPLACEMENT POWER ELECTRONICS UNIT (PEU) COLOR CHANGE. PURPOSE: Initial Release. The 2024 S2 Del Mar replacement Power Electronics Unit (PEU) will be changing color from silver to black. There is a black trim kit (Part No. 47201242 or 47201243) available to switch over silver components on a customer's motorcycle. This kit will be ordered in addition to the replacement PEU for motorcycles with silver trim. |
| L1021 | 2025-12-05. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. SERVICE BULLETIN L1021: TECH TIP 001 - S2 DEL MAR AC FILTER RUNNING CHANGE. PURPOSE: Initial Release. This bulletin informs dealers and technicians of a running change to the Alternating Current (AC) Filter on the 2024 S2 Del Mar (S2DM). Vehicles built prior to November 13, 2023 have a filter (Part No. 66000371) which has been superseded to (Part No. 66000371A). Replacing AC Filter (Part No. 66000371) will require additional parts and fasteners to install the superseded AC Filter (Part No. 66000371A). |
| L1014 | 2025-09-09. Service bulletin. EXTERIOR LIGHTING; ENGINE. SERVICE BULLETIN L1014: S2 INSTRUMENT MODULE DISPLAYING WRENCH ICON. PURPOSE: This bulletin informs dealers that some S2 Del Mar and Mulholland vehicles may incorrectly have the wrench icon (maintenance required) illuminated at the time of Predelivery Inspection (PDI). The wrench icon is a time-based service reminder and should only first come on two years after the date of manufacture. The Body Control Module (BCM) controls the display of this icon and may have its internal clock altered incorrectly by the Telematic Control Unit (TCU). NOTE: Correction of Communication Date in portal transaction ID: 24MC11001286 due to new portal interface use. |
| L1019 | 2025-09-09. Service bulletin. ENGINE; EXTERIOR LIGHTING; UNKNOWN OR OTHER. SERVICE BULLETIN L1019: PRODUCT PROGRAM 1901 S2 TCU REPLACEMENT. PURPOSE: LiveWire EV, LLC has identified that certain S2 motorcycles do not recognize the full connectivity benefit due to the lack of completion of regularly scheduled Firmware Over The Air (FOTA) updates. Certain S2 motorcycle’s Telematic Control Unit (TCU) that have not been updated to the latest software version which prevents full operation of the TCU and the motorcycle’s ability to receive FOTA updates will need to be inspected and the TCU replaced. Vehicle performance and safety are not affected. Additionally, there is an upcoming cloud update scheduled for August 31st, 2025, which will prevent motorcycles with these early TCU software versions from connecting to cloud services. If the affected vehicle's TCU is not updated by this time, connected service within the LiveWire S2 mobile app will cease to function. |
| L1016 | 2025-09-09. Service bulletin. UNKNOWN OR OTHER; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. SERVICE BULLETIN L1016 (REV C): S2 TCU UPDATE PROCEDURE FOR V4.0.6 AND EARLIER. PURPOSE: Revision C. This bulletin informs that this procedure should be followed when troubleshooting or updating Telematic Control Unit (TCU) software when version 4.0.6 or earlier is installed in the module. This procedure improves the likelihood of gaining and maintaining TCU connectivity, and reduces the need to replace the module. Revision C: Updated: Supplemental Procedure Video. Add video link. |
| L1016 | 2025-09-09. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER; EXTERIOR LIGHTING. SERVICE BULLETIN L1016 (REV B): S2 TCU UPDATE PROCEDURE FOR V4.0.6 AND EARLIER. PURPOSE: Revision B. This bulletin informs that this procedure should be followed when troubleshooting or updating Telematic Control Unit (TCU) software when version 4.0.6 or earlier is installed in the module. This procedure improves the likelihood of gaining and maintaining TCU connectivity, and reduces the need to replace the module.. Revision B: Updated Step 9 and Credit table. Updated: Repair Procedure and Credit Procedure. |
| L1016 | 2025-09-09. Service bulletin. EXTERIOR LIGHTING; UNKNOWN OR OTHER; ELECTRICAL SYSTEM. SERVICE BULLETIN L1016 (REV A): S2 TCU UPDATE PROCEDURE FOR V4.0.6 AND EARLIER. PURPOSE: Revision A. This bulletin informs that this procedure should be followed when troubleshooting or updating Telematic Control Unit (TCU) software when version 4.0.6 or earlier is installed in the module. This procedure improves the likelihood of gaining and maintaining TCU connectivity, and reduces the need to replace the module. Revision A: Updated Step 9. Updated: Repair Procedure. |
| L1016 | 2025-09-09. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM; UNKNOWN OR OTHER. SERVICE BULLETIN L1016: S2 TCU UPDATE PROCEDURE FOR V4.0.6 AND EARLIER. PURPOSE: This bulletin informs that this procedure should be followed when troubleshooting or updating Telematic Control Unit (TCU) software when version 4.0.6 or earlier is installed in the module. This procedure improves the likelihood of gaining and maintaining TCU connectivity, and reduces the need to replace the module. Initial Release: 2024-08-29. |
| L1013 | 2025-09-09. Service bulletin. UNKNOWN OR OTHER; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. SERVICE BULLETIN L1013: S2 DEL MAR TCU CELLULAR CONNECTIVITY. PURPOSE: This bulletin informs that there is a population of S2 Del Mar motorcycles where the Telematic Control Unit (TCU) is not communicating on the cellular network. A TCU that is not communicating will prevent the LiveWire S2 mobile app from pairing with the motorcycle. That will prevent the app from displaying information such as Charge Level, Available Range, or charging progress. It will not allow the navigation feature to function on the instrument module. Firmware Over the Air (FOTA) updates are also not available without a cellular signal. The symptoms are: the customer cannot pair the motorcycle to the mobile app after repeated attempts, or the TCU signal strength display in the Bike Status screen always shows no signal. The cause for this issue is TCU software based and will be addressed in a future update. Current estimate time for a Digital Technician II (DT II) field release is June 2024. |
| L1020 | 2025-09-09. Service bulletin. UNKNOWN OR OTHER; POWER TRAIN; FUEL/PROPULSION SYSTEM. SERVICE BULLETIN L1020: S2 COOLING SYSTEM FILL AND BLEED TIPS. PURPOSE: Initial Release. This bulletin provides dealers with best practices for filling and bleeding the cooling system on S2 models after component replacement. This can help prevent customer vehicle returns due to unpurged air in the cooling system. The most common symptom of this is the turtle icon illuminating on the instrument module after only a few minutes of riding. |
| L1019 | 2025-04-08. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. SERVICE BULLETIN L1019: PRODUCT PROGRAM 1901 S2 TCU REPLACEMENT. PURPOSE: LiveWire EV, LLC has identified that certain S2 motorcycles do not recognize the full connectivity benefit due to the lack of completion of regularly scheduled Firmware Over The Air (FOTA) updates. Certain S2 motorcycle’s Telematic Control Unit (TCU) that have not been updated to the latest software version which prevents full operation of the TCU and the motorcycle’s ability to receive FOTA updates will need to be inspected and the TCU replaced. Vehicle performance and safety are not affected. Additionally, there is an upcoming cloud update scheduled for August 31st, 2025, which will prevent motorcycles with these early TCU software versions from connecting to cloud services. If the affected vehicle's TCU is not updated by this time, connected service within the LiveWire S2 mobile app will cease to function. |
| M1555 | 2025-03-08. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. SERVICE BULLETIN M1555 (REV G): BATTERY WARRANTY GUIDELINES. PURPOSE: [Revision G: Updated: Information on Battery. Update section headers: AGM and Lithium-Ion Batteries.] This bulletin informs the dealership network that Harley-Davidson has provided guidelines for battery warranty. |
| L1016 | 2025-01-09. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. SERVICE BULLETIN L1016 (REV C): S2 TCU UPDATE PROCEDURE FOR V4.0.6 AND EARLIER. PURPOSE: Revision C. This bulletin informs that this procedure should be followed when troubleshooting or updating Telematic Control Unit (TCU) software when version 4.0.6 or earlier is installed in the module. This procedure improves the likelihood of gaining and maintaining TCU connectivity, and reduces the need to replace the module. Revision C: Updated: Supplemental Procedure Video. Add video link. |
| L1016 | 2024-12-06. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. SERVICE BULLETIN L1016 (REV B): S2 TCU UPDATE PROCEDURE FOR V4.0.6 AND EARLIER. PURPOSE: Revision B. This bulletin informs that this procedure should be followed when troubleshooting or updating Telematic Control Unit (TCU) software when version 4.0.6 or earlier is installed in the module. This procedure improves the likelihood of gaining and maintaining TCU connectivity, and reduces the need to replace the module.. Revision B: Updated Step 9 and Credit table. Updated: Repair Procedure and Credit Procedure. |
| M1490 | 2024-11-07. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. SERVICE BULLETIN M1490 (V 24.11.3): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES. PURPOSE: This bulletin informs dealers that Harley-Davidson has made a software update to Digital Technician II (DT II). DIGITAL TECHNICIAN II (PART NUMBER: HD-48650). Version 24.11.3 Release Date: Week of September 13, 2024. New Features: LiveWire S2, Telematic Control Unit (TCU) Reflash. LiveWire S2 EV1 and EV6, updated calibration for (Onboard Charger (OBC), Rechargeable Energy Storage System (RESS), Vehicle Supervisory Controller (VSC), TCU modules. Changes: LiveWire S2: Module Replace, Infotainment Control Unit (IFCU), Livewire S2: Updated text to refer to 12 Volt battery as “12V” instead of “LV", LiveWire S2: TCU Reflash. |
| L1016 | 2024-10-08. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. SERVICE BULLETIN L1016 (REV A): S2 TCU UPDATE PROCEDURE FOR V4.0.6 AND EARLIER. PURPOSE: Revision A. This bulletin informs that this procedure should be followed when troubleshooting or updating Telematic Control Unit (TCU) software when version 4.0.6 or earlier is installed in the module. This procedure improves the likelihood of gaining and maintaining TCU connectivity, and reduces the need to replace the module. Revision A: Updated Step 9. Updated: Repair Procedure. |
| M1490 | 2024-09-09. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. SERVICE BULLETIN M1490 (V 24.8.8): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES. PURPOSE: This bulletin informs dealers that Harley-Davidson has made a software update to Digital Technician II (DT II). DIGITAL TECHNICIAN II (PART NUMBER: HD-48650). Version 24.8.8. Release Date: Week of August 5, 2024. New Features for Harley-Davidson vehicles: Advanced Module Replace for 2021 and later Revolution Max; 2023 and later CVO Touring; and 2024 Street Glide (FLHX), Road Glide (FLTRX). New Features for LiveWire vehicles: Updated calibrations for 2024 S2DM EV1/ EV6; 2024 S2MH EV1; and 2024 S2DM, S2MH. Changes: Added Hand Control Module (HCM) (Part No. 71500522A and 71500536A) for reflash support. |
| L1016 | 2024-09-09. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. SERVICE BULLETIN L1016: S2 TCU UPDATE PROCEDURE FOR V4.0.6 AND EARLIER. PURPOSE: This bulletin informs that this procedure should be followed when troubleshooting or updating Telematic Control Unit (TCU) software when version 4.0.6 or earlier is installed in the module. This procedure improves the likelihood of gaining and maintaining TCU connectivity, and reduces the need to replace the module. Initial Release: 2024-08-29. |
| M1490 | 2024-07-09. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. SERVICE BULLETIN M1490 (V 24.7.2): DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES. PURPOSE: This bulletin informs dealers that Harley-Davidson has made a software update to Digital Technician II (DT II). DIGITAL TECHNICIAN II (PART NUMBER: HD-48650). Version 24.7.2 Release Date: Week of June 12, 2024. New Features: 2024 Touring, LiveWire S2DM EV3, LiveWire S2DM, S2MH. Changes: Added Hand Control Module (HCM) (Part No. 71500522A and 71500536A) for reflash support. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.