why is my Tesla Model S Plaid/Refresh (2021-present) dashboard lights not working

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

482 words

Problem Statement

Learn how to diagnose and fix dashboard lights not working in Tesla Model S Plaid. 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 12V battery before working on electrical components to avoid short circuits.

Symptoms

•Dashboard lights completely off
•Instrument cluster display not illuminated
•Warning lights or indicators not visible
•Difficulty reading speed, battery level, or other crucial information
•Possible related issues with headlights or exterior lighting

Diagnostic Steps

1
Check if the vehicle is in 'Park' mode, as dashboard lights may not illuminate in other modes.
2
Inspect the vehicle settings through the touchscreen interface to ensure dashboard lighting is not turned off.
3
Test the dimming control knob to verify if the brightness is set to an adequate level.
4
Use the Tesla app or touchscreen to check for software updates that might address the issue.
5
Inspect fuses associated with the dashboard lights for any blown fuses.
6
Perform a hard reset of the vehicle by holding down the scroll wheels on the steering wheel until the screen goes black.

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

•Multimeter
•Fuse puller

Parts Required

•Replacement fuse (if applicable)

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Diagnostic Steps

1
Check if the vehicle is in 'Park' mode, as dashboard lights may not illuminate in other modes.
2
Inspect the vehicle settings through the touchscreen interface to ensure dashboard lighting is not turned off.
3
Test the dimming control knob to verify if the brightness is set to an adequate level.
4
Use the Tesla app or touchscreen to check for software updates that might address the issue.
5
Inspect fuses associated with the dashboard lights for any blown fuses.
6
Perform a hard reset of the vehicle by holding down the scroll wheels on the steering wheel until the screen goes black.

Solution

1. Preparation

Gather tools such as a multimeter and fuse puller.
Ensure the vehicle is parked and turned off.
Disconnect the 12V battery if needed for safety.

2. Check Fuse

Open the front trunk and locate the fuse box.
Identify the fuse associated with dashboard lights using the owner's manual.
Use a fuse puller to remove the fuse and inspect it for continuity with a multimeter.
- If blown: Replace with a new fuse of the same amperage (check manual for specifications).
- If not blown: Reinsert the fuse and check functionality.

3. Software Update

Power on the vehicle and access the touchscreen interface.
Navigate to 'Software' and check for available updates.
If an update is available, follow the prompts to install it.
After updating, restart the vehicle and check if the dashboard lights function.

4. Reset Instrument Cluster

With the vehicle powered on, hold down the two scroll buttons on the steering wheel until the screen goes black.
Wait for the system to reboot and check if the dashboard lights are working.