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Whining Noise and Reduced Power in My 2020 Model 3 Long Range

0

Mark S. · rep 0 · May 22, 5:22 AM · 1 replies · solved · Question

Hey everyone,

I've been experiencing a really concerning issue with my 2020 Tesla Model 3 Long Range lately. Over the past week, I've noticed a distinct whining noise coming from what sounds like the rear of the car, especially noticeable during acceleration and deceleration. It's not constant, but it's definitely getting more frequent.

Yesterday, things got worse. While driving on the highway, I suddenly felt a significant reduction in power. The car wouldn't accelerate as quickly, and I got a 'Reduced Performance' alert on the screen, though no specific error code was displayed. I pulled over, restarted the car, and the alert went away, but the whining noise persists, and I'm hesitant to drive it much.

Has anyone else encountered this with their Model 3? Could this be a drive unit issue or something else related to the drivetrain? I'm trying to figure out if this is something I can troubleshoot or if it's an immediate service center visit.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 5:22 AM

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ClearTheCode guidance (Tesla · Engine & drivetrain)

Summary: For Whining Noise and Reduced Power in My 2020 Model 3 Long Range, work through these steps on your 2016+ vehicle:

  1. Confirm the symptom — note when it happens (cold start, highway, after fuel fill, etc.).
  2. Scan codes — save all pending/stored DTCs; don't clear until you've recorded them.
  3. Check TSBs & recalls — look up your VIN for open campaigns and known fixes.
  4. Inspect the obvious — related fuses, connectors, fluid level, and recent repairs.
  5. Test the common fix — follow model-specific service procedures; one change at a time.
  6. Escalate if needed — burning smell, no brakes, overheating, or stalling in traffic → shop visit.

Owner reported: Hey everyone,

I've been experiencing a really concerning issue with my 2020 Tesla Model 3 Long Range lately. Over the past week, I've noticed a distinct whining noise coming from what sounds like the rear of the car, especially noticeable during acceleration and deceleration. It's not constant, but it's definitely getting more frequent.

Yesterday, things got worse. While driving on the highway, …

This is educational guidance, not a substitute for hands-on diagnosis.

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