FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
how to troubleshoot a Tesla Model 3 Original (2017-2023) that loses connectivity frequently - Tesla Model 3
Home/Cars/Tesla/Model 3/Highland (2024-present)/how to troubleshoot a Tesla Model 3 Original (2017-2023) that loses connectivity frequently

how to troubleshoot a Tesla Model 3 Original (2017-2023) that loses connectivity frequently

Tesla Model 3 Highland (2024-present)

Error Codes
1-2 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
514 words

Problem Statement

Learn how to troubleshoot connectivity issues in Tesla Model 3 (2017-2023). Step-by-step guide with diagnostic steps and solutions for improved performance.

Affected Component
Electrical
Estimated Time
1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Ensure the vehicle is in 'Park' mode before performing any work on the infotainment system.

Symptoms

  • •Frequent disconnection from mobile data
  • •Inability to access over-the-air updates
  • •Navigation system may not load or function correctly
  • •Error messages regarding connectivity may display on the screen
  • •Reduced functionality of streaming services (e.g., music, video)

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

  • ✓Test the affected component to ensure it functions correctly
  • ✓Check for any error codes or warning lights
  • ✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • •Tesla diagnostic tool
  • •Plastic trim removal tool
  • •Flathead screwdriver

Parts Required

  • •Replacement SIM card (if found defective)

Additional Information

Affected Component
Electrical
Estimated Time
1-2 hours
Difficulty
medium
Severity
medium
Tools Required
3 items
Parts Required
1 item

Related Faults

Loading...

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation
Solution
1. Preparation
  • Ensure the vehicle is parked safely and is in "Park" mode.
  • Have the Tesla diagnostic tool ready for any necessary checks.
  • Gather necessary tools for accessing the SIM card and infotainment system, if needed.
2. Verify Mobile Data Settings
  • Go to the "Settings" menu on the touchscreen.
  • Select "Connectivity" and ensure that the mobile data toggle is switched on.
  • If mobile data is already enabled, toggle it off and then back on.
3. Check SIM Card
  • Tools Required: Plastic trim removal tool or flathead screwdriver.
  • Gently remove the trim panel covering the SIM card slot.
  • Carefully extract the SIM card and inspect it for any damage or dirt.
  • Reinsert the SIM card ensuring it clicks into place securely, then replace the trim panel.
4. Restart Infotainment System
  • Press and hold both scroll wheels on the steering wheel until the touchscreen goes black.
  • Wait for the Tesla logo to appear, indicating the system is rebooting.
  • Allow the system to fully restart and check if connectivity improves.
5. Update Software
  • Navigate to "Software" in the vehicle's main menu.
  • If an update is available, follow the prompts to install it.
  • Ensure the vehicle is connected to Wi-Fi for a successful update.