my Tesla Model 3 Original (2017-2023) won't start, just clicks, what to do

Tesla Model 3 Highland (2024-present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

488 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 3 (2017-2023). 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 battery before working on electrical systems to avoid shock.

Symptoms

•Clicking sound when the start button is pressed
•No engine turnover or cranking
•Dashboard lights illuminate but no power to accessories
•Battery warning light may appear
•Sudden loss of power while driving

Diagnostic Steps

1
Check the battery voltage using a multimeter to ensure it is above 12.4 volts.
2
Inspect the 12V battery connections for corrosion or looseness.
3
Verify the condition of the main battery pack using the Tesla app or dashboard.
4
Perform a hard reset by holding down both scroll wheels on the steering wheel until the screen reboots.
5
Check for any error messages or alerts in the vehicle’s settings menu.
6
Test the key fob or mobile app for proper functionality.

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
•Socket set
•Tire iron
•Safety gloves

Parts Required

•12V battery

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the battery voltage using a multimeter to ensure it is above 12.4 volts.
2
Inspect the 12V battery connections for corrosion or looseness.
3
Verify the condition of the main battery pack using the Tesla app or dashboard.
4
Perform a hard reset by holding down both scroll wheels on the steering wheel until the screen reboots.
5
Check for any error messages or alerts in the vehicle’s settings menu.
6
Test the key fob or mobile app for proper functionality.

Solution

1. Preparation

Tools Required: Multimeter, socket set, tire iron (if applicable to access the battery), safety gloves.
Ensure the vehicle is in a safe, flat area and power off the vehicle.

2. Battery Inspection

Sub-steps:
1. Open the front trunk (frunk) to access the 12V battery.
2. Disconnect the negative terminal first, followed by the positive terminal.
3. Inspect the battery for any physical damage or swelling.
4. Clean the terminals using a battery terminal cleaner or a mixture of baking soda and water if corrosion is present.
5. Reconnect the terminals securely (positive first, then negative).

3. Battery Replacement (if necessary)

Sub-steps:
1. If the battery voltage is below 12.4 volts or the battery shows signs of failure, replace the 12V battery.
2. Remove the old battery from the bracket.
3. Install the new battery, ensuring it is securely seated.
4. Reconnect the positive terminal first, then the negative terminal.
5. Dispose of the old battery properly at a recycling center.

4. Verify Main Battery Function

Sub-steps:
1. Use the Tesla app to check the state of charge and overall health of the main battery pack.
2. If the main battery pack shows issues, consult Tesla service for inspection or replacement.