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2020 Model 3: "Reduced Performance" warning and limp mode after update

0

Chris P. · rep 0 · May 22, 5:21 AM · 1 replies · solved · Question

Hey everyone,

My 2020 Tesla Model 3 Long Range just started acting up. After the latest software update a few days ago, I'm now getting a "Reduced Performance" warning on the screen, and the car feels like it's in limp mode. It's really sluggish, and acceleration is severely limited.

I've tried a soft reboot (scroll wheels) and even a full power cycle, but the warning persists. There aren't any specific OBD-II codes I can pull with my basic scanner, but the car definitely isn't driving normally. Has anyone else experienced this after a software update, or know what might be causing it?

It's making my daily commute a real pain, and I'm worried about potential damage.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 5:21 AM

0

ClearTheCode guidance (Tesla · Diagnostics & codes)

Summary: For 2020 Model 3: "Reduced Performance" warning and limp mode after update, 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,

My 2020 Tesla Model 3 Long Range just started acting up. After the latest software update a few days ago, I'm now getting a "Reduced Performance" warning on the screen, and the car feels like it's in limp mode. It's really sluggish, and acceleration is severely limited.

I've tried a soft reboot (scroll wheels) and even a full power cycle, but the warning persists. There aren't any …

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

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