LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Tesla >> 2014 >> Model S Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Maintenance, Inspection And Service -- Model 3) >> Firmware Service >> Software Reinstall - Toolbox >> Firmware Redeploy (Lead Acid Battery)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Firmware Redeploy (Lead Acid Battery)

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2023 Tesla Model 3, 2022 Tesla Model 3, 2021 Tesla Model 3, 2020 Tesla Model 3, and 2019 Tesla Model 3. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the rear underhood apron. See UNDERHOOD APRON - REAR (REMOVE AND REPLACE) .
  2. Connect a 12V support charger to make sure power is not lost during the firmware redeploy.
    CAUTION: If using a 50A or 80A maintainer, make sure the maintainer is set to "Lead Acid" or "Half Power" mode. Failure to do so could damage the LV battery.
    G00643657Courtesy of TESLA, INC.
  3. Connect a laptop with Toolbox 3 to the vehicle. See Toolbox 3 (Connect and Disconnect) 
    NOTE: Locally connecting the vehicle to Toolbox 3 will automatically enable Service Mode Plus.
  4. In Toolbox, select the Actions/Autodiag  tab, and then search for "redeploy".
  5. Run the appropriate routine and wait for the reinstallation to complete. Reinstallation status can be monitored on the vehicle touchscreen.
    • Service CAN Redeploy (UPDATE_CAN-REDEPLOY)  - A "partial" software reinstallation that reinstalls the currently installed software package to all module, ECU, and component replacements, with the exception of the car computer.
    • Service Redeploy (UPDATE_SERVICE-REDEPLOY)  - A "full" software reinstallation that reinstalls the currently installed software package to the car computer, and all module, ECU, and component replacements.
  6. Once the reinstallation is complete, check that the release notes appear on the touchscreen, indicating a successful reinstallation.
  7. Disconnect the 12V support charger.Disconnect the LV battery maintainer.
    G00643657Courtesy of TESLA, INC.
  8. Disconnect the laptop from the vehicle. See Toolbox 3 (Connect and Disconnect) 
  9. Disable Service Mode. See SERVICE MODE .
  10. Install the rear underhood apron. See UNDERHOOD APRON - REAR (REMOVE AND REPLACE) .
scientia non olet · About LEMON Manuals