my Tesla Model 3 Highland (2024-present) remote start is not working, what to do

Tesla Model 3 Highland (2024-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

479 words

Problem Statement

Learn how to troubleshoot and fix the remote start issue in Tesla Model 3 Highland. Step-by-step guide with diagnostic procedures and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in 'Park' before performing any troubleshooting steps.

Symptoms

•Remote start feature unresponsive when activated via the Tesla app
•Notifications indicating 'Remote Start Failed'
•Car does not start when the key fob is used
•No confirmation sound or lights when attempting to start remotely
•Possible error messages displayed on the vehicle's touchscreen

Diagnostic Steps

1
Verify that the Tesla app is updated to the latest version.
2
Check the vehicle's battery level to ensure it has sufficient charge.
3
Confirm that the vehicle is within the proper range for remote starting (typically within a few hundred feet).
4
Inspect the vehicle settings in the app to ensure remote start is enabled.
5
Check for any software updates available for the vehicle through the touchscreen interface.
6
Examine the key fob’s battery to ensure it is functioning properly.

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

•Smartphone with Tesla app
•Small screwdriver (for key fob battery replacement)

Parts Required

•CR2032 key fob battery (if replacement is needed)

Related Faults

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Diagnostic Steps

1
Verify that the Tesla app is updated to the latest version.
2
Check the vehicle's battery level to ensure it has sufficient charge.
3
Confirm that the vehicle is within the proper range for remote starting (typically within a few hundred feet).
4
Inspect the vehicle settings in the app to ensure remote start is enabled.
5
Check for any software updates available for the vehicle through the touchscreen interface.
6
Examine the key fob’s battery to ensure it is functioning properly.

Solution

1. Preparation

Ensure the vehicle is parked safely and is in a well-ventilated area.
Have the Tesla app and vehicle touchscreen readily accessible.

2. Update Software

Access the vehicle's touchscreen.
- Go to "Controls" > "Software" to check for any available updates.
- If an update is available, connect to Wi-Fi and follow the prompts to install it.

3. Reset Vehicle Systems

On the touchscreen, go to "Controls" > "Service" > "Restart".
This will reset the vehicle’s computer systems.
Wait for the vehicle to reboot completely.

4. Check Remote Start Settings

In the Tesla app, navigate to "Controls".
Ensure that the "Remote Start" feature is toggled on.
If it was off, turn it back on and attempt to use the feature again.

5. Replace Key Fob Battery

Remove the key fob’s back cover using a small screwdriver.
Replace the old battery with a new CR2032 battery, ensuring the positive side is facing up.
Reassemble the key fob and test the remote start functionality.