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my Tesla Model S Plaid/Refresh (2021-present) remote key fob not working - Tesla Model S
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my Tesla Model S Plaid/Refresh (2021-present) remote key fob not working

Tesla Model S Plaid/Refresh (2021-present)

Error Codes
30 minutes
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
506 words

Problem Statement

Learn how to troubleshoot and fix a non-functioning key fob for Tesla Model S Plaid. Step-by-step guide with diagnostic steps and solutions.

Affected Component
Electrical
Estimated Time
30 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Ensure the vehicle is off and parked before working on the key fob.

Symptoms

  • •Key fob not unlocking or locking the car doors
  • •Key fob not starting the vehicle
  • •Visual indicators (e.g., LED light) on the key fob not illuminating
  • •Inconsistent operation (works intermittently)
  • •"Key not detected" message on the vehicle display

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

  • •Small screwdriver
  • •Soft cloth

Parts Required

  • •CR2032 battery

Additional Information

Affected Component
Electrical
Estimated Time
30 minutes
Difficulty
medium
Severity
medium
Tools Required
2 items
Parts Required
1 item

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Solution
1. Preparation
  • Gather tools: small screwdriver (for opening the fob), replacement battery (CR2032), and a soft cloth.
  • Ensure the vehicle is parked and turned off.
2. Replace Key Fob Battery

  1. Open the Key Fob

    • Use the small screwdriver to gently pry apart the two halves of the key fob.
    • Be cautious not to damage the plastic casing.

  2. Remove Old Battery

    • Take note of the battery orientation (positive and negative sides).
    • Carefully remove the old CR2032 battery from its compartment.

  3. Install New Battery

    • Insert the new CR2032 battery in the same orientation as the old one.
    • Ensure it is seated properly in the battery compartment.

  4. Reassemble Key Fob

    • Align the two halves of the key fob and press them firmly together until they snap back into place.
3. Resync Key Fob

  1. Enter Vehicle

    • Sit in the driver's seat with the new battery installed in the key fob.

  2. Place Key Fob on Wireless Charging Pad

    • Position the key fob on the designated wireless charging area in the center console to facilitate syncing.

  3. Activate Key Fob

    • Press the brake pedal to turn on the vehicle while the fob is on the charging pad.

  4. Check Functionality

    • Test the key fob by attempting to lock and unlock the doors and start the vehicle.