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how do I fix the trunk not opening on my Tesla Model 3 Highland (2024-present) - Tesla Model 3
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how do I fix the trunk not opening on my Tesla Model 3 Highland (2024-present)

Tesla Model 3 Highland (2024-present)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
545 words

Problem Statement

Learn how to diagnose and fix the trunk not opening issue on Tesla Model 3 Highland (2024-present). Step-by-step guide with tools and tips.

Affected Component
Electrical
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the vehicle's 12V battery before working on electrical systems to prevent shocks or shorts.

Symptoms

  • •Trunk release button does not respond
  • •Trunk does not open when using the key fob
  • •Trunk does not open when using the touchscreen interface
  • •Trunk may make a clicking sound but does not unlatch
  • •Dashboard warning message related to trunk or latch

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 or Tesla diagnostic tool
  • •Multimeter
  • •Socket set
  • •Trim removal tool
  • •Screwdrivers

Parts Required

  • •CR2032 battery (for key fob)
  • •Trunk latch assembly (if needed)

Additional Information

Affected Component
Electrical
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
2 items

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Ensure the vehicle is parked safely and the keys are out of the ignition.
  • Disconnect the vehicle's 12V battery to prevent any electrical shorts.
2. Inspect and Replace Key Fob Battery
  • Tools Required: Small flathead screwdriver or coin
  • Carefully pry open the key fob cover using the screwdriver or coin.
  • Remove the old battery and replace it with a new CR2032 battery, ensuring correct orientation.
  • Reassemble the key fob and test the trunk release function.
3. Check Trunk Release Button and Wiring
  • Tools Required: Multimeter
  • Remove the interior panel near the trunk release button using a trim removal tool.
  • Inspect the wiring for any visible damage or disconnections.
  • Use a multimeter to test for continuity at the button. If defective, replace the button.
4. Inspect and Replace Trunk Latch Mechanism
  • Tools Required: Socket set, screwdrivers
  • Remove the trunk lining to access the latch mechanism.
  • Inspect the latch for any signs of wear or damage.
  • If defective, remove the latch by unscrewing the securing bolts and disconnecting the electrical connector.
  • Install the new latch by reversing the removal steps and ensuring secure connections.
5. Reconnect Battery and Test
  • Reconnect the vehicle’s 12V battery.
  • Test the trunk release using the key fob, touchscreen, and the Tesla app to confirm functionality.