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.
2021 Tesla Model S Long RangeFACTORY OEM SERVICE PROCEDURE
Firmware Update: Procedure
- Verify that network connectivity is available to the vehicle by the words "3G", "4G", "LTE", or the WiFi icon appearing in the upper right corner of the touchscreen.
- Verify that there is an orange down arrow in the upper right corner of the vehicle touchscreen.
- If the down arrow is displayed, skip to step 4.
- If no down arrow is displayed, the vehicle firmware might be at the latest level for the vehicle, or no request for the latest vehicle firmware has been made. Continue to the next step.
- Touch Controls, and then touch Software to request the latest vehicle firmware.NOTE: If the text "Your car software is up to date as of...." appears above Software Update Preference, the vehicle is already configured with the latest firmware.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.