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my Tesla Model S Original (2012-2020) headlights are flickering is this a problem - Tesla Model S
Home/Cars/Tesla/Model S/Plaid/Refresh (2021-present)/my Tesla Model S Original (2012-2020) headlights are flickering is this a problem

my Tesla Model S Original (2012-2020) headlights are flickering is this a problem

Tesla Model S Plaid/Refresh (2021-present)

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

Problem Statement

Learn how to diagnose and fix flickering headlights in Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component
Electrical
Estimated Time
1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical systems.
  • •Allow the vehicle to cool before handling any components.

Symptoms

  • •Headlight flickering intermittently
  • •Dimming of headlights when idling
  • •Dashboard warning lights illuminated
  • •Unusual noises from the headlight assembly
  • •Possible malfunction of high or low beams

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

  • •OBD-II scanner
  • •Socket set
  • •Fuse puller or needle-nose pliers
  • •Multimeter
  • •Wire stripper
  • •Electrical tape

Parts Required

  • •Headlight bulbs (if damaged)
  • •Fuses (if blown)
  • •Headlight relay (if faulty)

Additional Information

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

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a flat surface and the ignition is off.
  • Disconnect the negative terminal of the battery for safety.
2. Inspect and Replace Headlight Bulbs
  • Tools Required: Socket set, gloves.
  • Remove the headlight assembly by unscrewing the mounting bolts.
  • Disconnect the electrical connector from the back of the headlight.
  • Remove the old bulb and install the new bulb, ensuring it is seated properly.
  • Reconnect the electrical connector and reinstall the headlight assembly.
3. Check and Replace Fuses
  • Tools Required: Fuse puller or needle-nose pliers.
  • Locate the fuse box (check the owner's manual for the exact location).
  • Identify the fuse related to the headlights and inspect it for continuity.
  • Replace the fuse with one of the same amperage if it is blown.
4. Inspect and Repair Wiring
  • Tools Required: Multimeter, wire stripper, electrical tape.
  • Visually inspect the wiring harness and connectors for any signs of damage or corrosion.
  • Use a multimeter to check for continuity in the wiring.
  • Repair any damaged wires using a wire stripper and electrical tape to ensure proper insulation.
5. Test and Replace Headlight Relay
  • Tools Required: Multimeter, replacement relay.
  • Locate the headlight relay in the fuse box.
  • Test the relay for functionality using a multimeter.
  • Replace the relay if it is found to be faulty.