why does my Tesla Model S Plaid/Refresh (2021-present) have poor acceleration

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the parking brake is engaged.
• Disconnect the high voltage battery before performing any electrical work.

2. Update Software

• Navigate to the vehicle settings menu.
• Select 'Software' and check for any available updates.
• Follow the prompts to install updates if available.

3. Battery Inspection

• Remove the cover from the battery pack.
• Use a multimeter to check voltage across the battery terminals.
• Inspect for any corrosion on terminals and clean if necessary.

4. Drive Unit Inspection

• Carefully inspect the drive unit for any signs of fluid leaks or physical damage.
• Check the wiring harnesses for loose connections or frayed wires.
• Reconnect any loose connections and secure wiring as needed.

5. Replace 12V Battery (if necessary)

• Disconnect the negative terminal of the 12V battery.
• Remove the 12V battery from its housing.
• Install the new 12V battery, ensuring it is secured correctly.
• Reconnect the negative terminal and check for proper operation.