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.
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HOMESERVICE MANUALSTESLA2018MODEL 3 BASEREPAIR AND DIAGNOSISMAINTENANCEPROCEDURESMAINTENANCE, INSPECTION AND SERVICE -- MODEL 3FIRMWARE SERVICESOFTWARE REINSTALL - TOUCHSCREENNOTES
2018 Tesla Model 3 Base
Software Reinstall - Touchscreen: Notes
2018 Tesla Model 3 BaseSECTION Notes
Last modified: 01/12/2023 00:57:34
NOTE:
See Personal Protection
to make sure to wear proper PPE when performing below procedure.
Revision History:
- 2023-12-01: Updated the UI operations according to the UI of the latest firmware.
- 2023-06-08: Updated Li-Ion instructions: Vehicle software version 2023.12 or newer is required, and consolidated "contactors closed" and "contactors open" procedures.
- 2023-03-27: Revised Li-Ion 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 use the vehicle touchscreen to reinstall the currently installed vehicle software to all CAN ECUs; DO NOT use this procedure to update the car computer. The package will not be downloaded from Tesla servers.
RENDER: 1.0x
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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.