my Tesla Model 3 Highland (2024-present) indicator lights won’t turn off how can I fix this

Tesla Model 3 Highland (2024-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

486 words

Problem Statement

Learn how to diagnose and fix indicator lights that won't turn off in your Tesla Model 3 Highland. 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 high-voltage battery if working on electrical components; consult the owner's manual for proper procedures.

Symptoms

•Indicator lights remain illuminated even when the vehicle is off
•Dashboard warning lights may be activated
•Clicking sound (relay) can be heard when the indicators are engaged
•Reduced battery efficiency due to lights remaining on
•Possible malfunction in other electrical systems (e.g., interior lights)

Diagnostic Steps

1
Check for any active error codes using the Tesla diagnostic tool or app.
2
Inspect the turn signal stalk for physical damage or debris.
3
Review the vehicle’s settings in the touchscreen menu to ensure indicators are set correctly.
4
Verify if the indicator lights are responding correctly when activated.
5
Inspect the fuses related to the lighting system for any signs of failure or damage.

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
•Socket set
•Multimeter
•Electrical contact cleaner

Parts Required

•Replacement fuse (if needed)
•Turn signal stalk (if damaged)

Related Faults

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Symptoms

•Indicator lights remain illuminated even when the vehicle is off

•Dashboard warning lights may be activated

•Clicking sound (relay) can be heard when the indicators are engaged

•Reduced battery efficiency due to lights remaining on

•Possible malfunction in other electrical systems (e.g., interior lights)

Diagnostic Steps

1
Check for any active error codes using the Tesla diagnostic tool or app.
2
Inspect the turn signal stalk for physical damage or debris.
3
Review the vehicle’s settings in the touchscreen menu to ensure indicators are set correctly.
4
Verify if the indicator lights are responding correctly when activated.
5
Inspect the fuses related to the lighting system for any signs of failure or damage.

Solution

1. Preparation

Ensure the vehicle is parked and powered down.
Gather necessary tools, including a trim removal tool, socket set, and multimeter.

2. Inspect the Turn Signal Stalk

Sub-steps:
1. Remove any surrounding trim panels using a trim removal tool to access the turn signal stalk.
2. Disconnect the wiring harness from the stalk.
3. Inspect the stalk for any visible damage or debris.
4. Clean the stalk connectors with electrical contact cleaner.

3. Check and Replace Fuses

Sub-steps:
1. Locate the fuse box (usually found under the dashboard or in the trunk).
2. Identify the fuse associated with the turn signals using the owner's manual.
3. Remove the fuse using a fuse puller and inspect for signs of failure (burned or broken).
4. If faulty, replace with a new fuse of the same amperage (usually 10A or 15A).
5. Reassemble the fuse box cover.

4. Test the Turn Signal System

Sub-steps:
1. Reconnect the turn signal stalk wiring harness.
2. Reattach the trim panel securely.
3. Power on the vehicle and test the indicator lights for proper function.
4. Monitor the lights for a few minutes to ensure they turn off after deactivation.