how to fix the trunk not opening on my Tesla Model S Original (2012-2020)

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

524 words

Problem Statement

Learn how to diagnose and fix the trunk not opening issue on Tesla Model S (2012-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the 12V battery before working on electrical components to prevent short circuits.

Symptoms

•Trunk release button (interior/exterior) does not respond
•No sound or movement when attempting to open the trunk
•Warning message on the dashboard related to trunk
•Manual release mechanism inaccessible or not functioning
•Trunk remains closed despite pressing the key fob

Diagnostic Steps

1
Check the key fob battery to ensure it's functioning properly.
2
Inspect the trunk release button for physical damage or obstruction.
3
Use the Tesla app to attempt to open the trunk remotely.
4
Scan the vehicle for error codes using the Tesla diagnostic tool (if available).
5
Examine the trunk latch for any visible signs of damage or corrosion.
6
Inspect wiring and connectors leading to the trunk latch for any wear or disconnection.

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

•Trim removal tool
•Multimeter
•Screwdriver set
•Flashlight

Parts Required

•Trunk release button (if faulty)
•Trunk latch mechanism (if defective)

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Diagnostic Steps

1
Check the key fob battery to ensure it's functioning properly.
2
Inspect the trunk release button for physical damage or obstruction.
3
Use the Tesla app to attempt to open the trunk remotely.
4
Scan the vehicle for error codes using the Tesla diagnostic tool (if available).
5
Examine the trunk latch for any visible signs of damage or corrosion.
6
Inspect wiring and connectors leading to the trunk latch for any wear or disconnection.

Solution

1. Preparation

Gather tools: trim removal tool, multimeter, screwdriver set, and a flashlight.
Ensure the vehicle is parked safely and powered off.

2. Inspect the Trunk Release Button

Remove any trim covering the interior trunk release button using a trim removal tool.
Disconnect the button's wiring harness and test the button with a multimeter for continuity.
If the button is faulty, replace it with a new part.

3. Access the Trunk Latch Mechanism

If the trunk is still not opening, manually access the latch mechanism by folding down the rear seats if possible.
Locate the trunk latch and check for any obstructions or misalignment.
If the latch is stuck, apply a penetrating lubricant to free it.

4. Test the Latch Mechanism

Using a multimeter, check for power at the latch connector when the trunk release button is pressed.
If there's no power, trace the wiring back to the source and repair any broken connections.
If power is present but the latch does not operate, replace the trunk latch mechanism.

5. Reassemble and Test

Reconnect any wiring harnesses and replace the interior trim.
Test the trunk release button and key fob functionality to confirm that the trunk opens successfully.