Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2024 Tesla Model S BaseFACTORY OEM SERVICE PROCEDURE
Firmware Reinstall - Touchscreen: Notes
Last modified: 19/09/2023 13:10:53
NOTE:
See Personal Protection
to make sure wearing proper PPE when performing the below procedure.
Revision History:
- 2023-09-18: Updated to one procedure that can be performed regardless of contactor state.
- Revised software reinstall instructions. The most notable (but not the only) updates are as follows: Contactors closed - check for "VCFRONT_a402_LVBatteryCannotSupportVehicle" alert before initiating FW reinstallation. Contactors open - Check LV battery SoC and HV Battery BMS state before initiating the 2nd FW reinstallation.
NOTE:
This procedure describes how to reinstall the currently installed vehicle software using the center display. The package will not be downloaded from Tesla servers.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.