how to fix my Tesla Model 3 Highland (2024-present) when the mirrors won't adjust?

Tesla Model 3 Highland (2024-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

503 words

Problem Statement

Learn how to diagnose and fix non-adjustable mirrors on Tesla Model 3 Highland (2024-present). 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

•Ensure the vehicle is turned off and parked safely before starting any repairs.

Symptoms

•Mirrors do not respond to adjustment controls
•Mirror adjustment settings reset after vehicle restart
•Warning message displayed on the infotainment screen
•Exterior mirrors stuck in their current position
•No sound or feedback when attempting adjustments

Diagnostic Steps

1
Check for any software updates available for the vehicle using the infotainment system.
2
Inspect the mirror adjustment controls for physical damage or obstruction.
3
Verify that the vehicle's battery is fully charged, as low voltage can affect electronic components.
4
Perform a soft reset of the vehicle’s infotainment system by holding down both scroll wheels on the steering wheel.
5
Inspect the vehicle's wiring harness connected to the mirror adjustment motors for any visible damage 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
•Socket set

Parts Required

•Mirror switch assembly (if damaged)
•Wiring harness (if damaged)

Related Faults

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Diagnostic Steps

1
Check for any software updates available for the vehicle using the infotainment system.
2
Inspect the mirror adjustment controls for physical damage or obstruction.
3
Verify that the vehicle's battery is fully charged, as low voltage can affect electronic components.
4
Perform a soft reset of the vehicle’s infotainment system by holding down both scroll wheels on the steering wheel.
5
Inspect the vehicle's wiring harness connected to the mirror adjustment motors for any visible damage or disconnection.

Solution

1. Preparation

Tools Required: None initially.
Ensure the vehicle is parked in a safe location and the ignition is off.

2. Software Update

Sub-steps:
1. Power on the vehicle and access the infotainment screen.
2. Navigate to 'Software' in the settings menu.
3. Check for updates and install any available updates.
4. Restart the vehicle to apply changes.

3. Inspect and Repair Controls

Sub-steps:
1. Examine the mirror adjustment controls on the driver’s door for any visible damage.
2. If damaged, replace the mirror switch assembly:
  - Use a trim removal tool to carefully pry off the panel covering the switch.
  - Disconnect the electrical connector from the back of the switch.
  - Install the new switch by reversing the removal process.

4. Wiring Inspection

Sub-steps:
1. Access the wiring harness connected to the mirrors by removing the door panel:
  - Use a socket set to remove screws and a trim tool to detach the panel.
2. Inspect the wiring for damage or loose connections.
3. If damage is found, repair or replace the wiring as necessary.
4. Reassemble the door panel and ensure all clips and screws are securely fastened.

5. Testing

Sub-steps:
1. Reconnect the vehicle's battery if it was disconnected.
2. Test the mirror adjustment controls to ensure functionality.

Note: If issues persist after these steps, the mirror motors may need replacement.