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how to fix the dash lights on Tesla Model S Original (2012-2020) - Tesla Model S
Home/Cars/Tesla/Model S/Plaid/Refresh (2021-present)/how to fix the dash lights on Tesla Model S Original (2012-2020)

how to fix the dash lights on Tesla Model S Original (2012-2020)

Tesla Model S Plaid/Refresh (2021-present)

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

Problem Statement

Learn how to diagnose and fix dash lights not illuminating on Tesla Model S (2012-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component
Electrical
Estimated Time
1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the 12V battery before working on electrical components to prevent shocks and shorts.

Symptoms

  • •Dash lights completely off
  • •Dim or flickering dash lights
  • •Inconsistent illumination of specific warning lights
  • •Non-functioning display indicators (e.g., battery level, speed)
  • •Error messages related to the instrument cluster

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

  • •Torx screwdriver set
  • •Multimeter
  • •OBD-II scanner

Parts Required

  • •Replacement fuses (if necessary)
  • •Electrical contact cleaner (for cleaning connectors)

Additional Information

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

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Solution
1. Preparation
  • Ensure the vehicle is parked and turned off.
  • Disconnect the 12V battery to prevent electrical shorts while working.
  • Gather tools: Torx screwdriver set, multimeter, and OBD-II scanner.
2. Check and Replace Fuses
  • Locate the fuse box (usually under the dashboard or in the front trunk).
  • Use the fuse diagram to identify the instrument cluster fuse.
  • Remove the fuse and inspect it; replace if blown with a fuse of the same amperage.
3. Inspect Wiring and Connectors
  • Remove the instrument cluster by unscrewing the mounting screws with a Torx driver.
  • Gently pull the cluster away from the dashboard to access the wiring connectors.
  • Inspect for loose wires or corrosion; clean connectors with electrical contact cleaner if necessary.
4. Update Software
  • Reconnect the 12V battery.
  • Turn on the vehicle and navigate to the software update section of the touchscreen.
  • Follow prompts to install any available updates, which may resolve software-related issues.
5. Test Instrument Cluster Functionality
  • After updates, turn the vehicle on and check if the dash lights illuminate properly.
  • If issues persist, further examination of the instrument cluster’s internal electronics may be necessary.