my Tesla Model S Plaid/Refresh (2021-present) won't start and just clicks what should I do

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

529 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix the no-start issue in Tesla Model S Plaid. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the 12V battery before handling electrical components.
•Allow the vehicle to cool down before working on it to prevent burns.

Symptoms

•Clicking noise from the engine compartment when trying to start
•Dashboard lights may illuminate briefly
•No engine turnover or cranking
•Possible 'Battery Low' warning message
•Power accessories functioning intermittently
•Unresponsive key fob or mobile app commands

Diagnostic Steps

1
Check the battery charge level using the Tesla mobile app or dashboard display.
2
Inspect the 12V battery for corrosion or loose connections.
3
Perform a visual inspection of the main battery connections and fuses for damage.
4
Ensure that the key fob is functioning properly (try using a spare if available).
5
Attempt a soft reset of the vehicle's systems by holding down the steering wheel buttons.
6
Use the Tesla service menu to check for any error codes related to the battery or starting system.

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

•Socket set
•Multimeter

Parts Required

•New 12V battery (compatible with Tesla Model S)

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Diagnostic Steps

1
Check the battery charge level using the Tesla mobile app or dashboard display.
2
Inspect the 12V battery for corrosion or loose connections.
3
Perform a visual inspection of the main battery connections and fuses for damage.
4
Ensure that the key fob is functioning properly (try using a spare if available).
5
Attempt a soft reset of the vehicle's systems by holding down the steering wheel buttons.
6
Use the Tesla service menu to check for any error codes related to the battery or starting system.

Solution

1. Preparation

Ensure the vehicle is in a safe location with adequate ventilation.
Gather necessary tools and parts.
Disconnect the vehicle from any external power sources.

2. Inspect and Replace the 12V Battery

Tools Required: Socket set, multimeter
Sub-steps:
1. Open the front trunk and locate the 12V battery.
2. Use a multimeter to check the voltage of the 12V battery; it should read at least 12.6 volts.
3. If the voltage is below 12.4 volts, proceed to disconnect the battery using a socket set (remove negative terminal first, then positive).
4. Remove the old battery and replace it with a new 12V battery, ensuring correct orientation.
5. Connect the positive terminal first, followed by the negative terminal, and tighten securely.

3. Check and Reset Battery Management System

Tools Required: Tesla mobile app, access to vehicle settings
Sub-steps:
1. Reconnect the vehicle to a charging station for at least 30 minutes to an hour to ensure the main battery has adequate charge.
2. Open the Tesla mobile app and navigate to "Service" to initiate a reset of the battery management system.
3. Follow any on-screen instructions to reset the system.

4. Final Assembly and Testing

Sub-steps:
1. Ensure all components are reassembled correctly.
2. Close the front trunk securely.
3. Attempt to start the vehicle again.