why is my Tesla Model 3 Highland (2024-present) making a weird noise when I accelerate

Solution

1. Preparation

• Tools Required: OBD-II scanner, jack and jack stands, socket set, torque wrench, diagnostic headphones (if necessary).
• Safety Warnings: Ensure vehicle is in "Park" mode and on a flat surface. Disconnect the battery before working on electrical components.

2. Inspect and Secure Components

• Sub-steps:
  1. Lift Vehicle: Use a jack to raise the vehicle and secure it with jack stands.
  2. Check Suspension and Mounts: Inspect suspension components such as struts, sway bar links, and motor mounts for looseness or damage. Tighten or replace as necessary.
  3. Inspect Drive Axles: Check the drive axles for any signs of wear or damage. Replace any damaged components.
  4. Check Wheel Bearings: Spin the wheels by hand to listen for grinding noises that may indicate worn bearings.

3. Electric Motor Inspection

• Sub-steps:
  1. Access Motor Area: Remove any panels necessary to access the electric motor.
  2. Listen for Noises: With the vehicle in "Park," have someone else gently accelerate while you listen closely to the motor.
  3. Examine Wiring and Connectors: Check all wiring and connectors for signs of wear or loose connections. Repair or replace as needed.

4. Reassembly and Testing

• Sub-steps:
  1. Reassemble Any Removed Panels: Ensure all panels are secured back in place.
  2. Lower Vehicle: Carefully lower the vehicle from the jack stands.
  3. Reconnect Battery: Reconnect the battery and clear any error codes from the OBD-II scanner.
  4. Test Drive: Perform a test drive to verify if the noise has been resolved.