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2020 Model 3: Charging Port Not Latching & Slow Charging

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Mike T. · rep 0 · May 25, 4:02 AM · 1 replies · solved · Question

Vehicle: 2020 Tesla Model 3 Standard Range Plus

Hey everyone, I'm having a really annoying issue with my 2020 Model 3 Standard Range Plus. Lately, when I try to plug it in at home, the charging cable often won't latch properly. I have to try several times, wiggling it, before it finally clicks into place. Even then, sometimes it starts charging but then the charging rate is super slow, like 10-15 miles per hour, when it should be much faster on my Wall Connector.

I've tried different cables and even a public Supercharger, and I'm seeing similar issues with the latching. The slow charging seems to happen more at home, though. I'm worried about damaging the port or the car's battery system.

Has anyone experienced this? Is it a common problem with the charging port itself, or could it be something deeper with the car's electronics? Any advice on what to check or if I should just schedule service immediately?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 4:02 AM

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ClearTheCode admin answer:

This sounds like a common issue that can stem from a few different electrical or mechanical points within your Tesla's charging system. It's good you've tried different cables, as that helps narrow down the problem.

Here's what to consider:

  1. Inspect the Charging Port: Carefully examine the charging port on your Model 3 for any visible obstructions, debris, bent pins, or signs of corrosion. Even a small piece of lint can prevent proper latching or connection. Use a flashlight if needed, but be gentle and do not insert anything metallic.
  2. Check the Charging Cable Latch: The latching mechanism is often part of the charging cable itself. While you've tried different cables, ensure the latch on each cable feels robust and isn't sticking or damaged. If you're using a Tesla Wall Connector, inspect its cable as well.
  3. Software Glitch: Sometimes, a minor software bug can interfere with the charging handshake. Try a soft reset of your vehicle (holding both scroll wheels on the steering wheel until the screen reboots).
  4. Charging Controller Issue: If the port is clean and cables seem fine, the problem could lie with the vehicle's internal charging controller or the charging port assembly itself. These components manage the communication and power flow during charging.
  5. Internal Diagnostics: Tesla vehicles have advanced internal diagnostic codes. While not standard OBD-II, a service center can read these to pinpoint issues like a faulty charging port actuator (CP_w010) or a charging communication error (CHG_w002).

When to see a shop:

Given that you're experiencing both latching and slow charging issues, and have already tried different cables, it's highly recommended to schedule a service appointment with Tesla. This isn't a problem you can typically fix yourself, and continued attempts could potentially damage the port further. A technician can properly diagnose whether it's the charging port assembly, the onboard charger, or related wiring/modules that need attention.

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