what does it mean when my Tesla Model S Plaid/Refresh (2021-present) shows a transmission fault?

Solution

1. Preparation

• Ensure the vehicle is parked on a level surface.
• Turn off the vehicle and disconnect any charging cables.
• Gather necessary tools and parts.

2. Software Update

• Connect the vehicle to Wi-Fi and check for software updates in the Tesla app.
• If an update is available, follow prompts to install it.

3. Fluid Check (if applicable)

• Locate the transmission fluid reservoir.
• Remove the fluid dipstick and check the fluid level.
• If the fluid is low or dirty, proceed to replace it.
  • Tools Required: Fluid pump, clean rags.
  • Safety Warnings: Allow the vehicle to cool before checking fluid levels.

4. Inspect Electrical Connections

• Open the front trunk and inspect wiring and connectors related to the transmission.
• Ensure all connections are tight and free of corrosion.
  • Tools Required: Torque wrench (for re-tightening), multimeter (optional for testing).

5. Resetting the Drive Unit

• Power off the vehicle completely by holding down the brake pedal and tapping the screen to perform a reset.
• Wait for a few minutes before turning the vehicle back on.

6. Replacement of Faulty Components

• If diagnostics indicate a faulty drive unit or transmission component, remove and replace the affected part following Tesla service guidelines.
  • Tools Required: Socket set, torque wrench, and possibly specialized Tesla tools.