how to troubleshoot a Tesla Model S Original (2012-2020) that won't go into gear

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

470 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 troubleshoot and fix the gear selector issue in Tesla Model S (2012-2020). Step-by-step guide with diagnostic steps and repair instructions.

Affected Component

Transmission

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the 12V battery before working on electrical components to avoid shock.
•Wear safety goggles and gloves when handling battery connections.

Symptoms

•Gear selector not responding
•Warning messages on the dashboard
•Unable to shift from park to drive or reverse
•No audible sound when attempting to engage gear
•Brake pedal feels stiff or unresponsive

Diagnostic Steps

1
Check the vehicle's battery level to ensure it is adequately charged.
2
Inspect the brake pedal for proper function and check the brake switch.
3
Scan the vehicle's system for error codes using a Tesla diagnostic tool.
4
Verify that the gear selector is functioning properly by testing it in different modes.
5
Examine the 12V battery and its connections for any corrosion or loose connections.
6
Inspect the main drive unit for any signs of overheating or failure.

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

•Tesla diagnostic tool
•Battery cleaning solution
•Basic hand tools (screwdriver, wrench)

Parts Required

•Brake switch (if found faulty)
•Brake fluid (if needed)

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Diagnostic Steps

1
Check the vehicle's battery level to ensure it is adequately charged.
2
Inspect the brake pedal for proper function and check the brake switch.
3
Scan the vehicle's system for error codes using a Tesla diagnostic tool.
4
Verify that the gear selector is functioning properly by testing it in different modes.
5
Examine the 12V battery and its connections for any corrosion or loose connections.
6
Inspect the main drive unit for any signs of overheating or failure.

Solution

1. Preparation

Ensure the vehicle is in a safe and level area.
Disconnect the 12V battery to prevent electrical shock while inspecting components.

2. Check Battery Connections

Inspect the terminals of the 12V battery for corrosion or loose connections.
Clean terminals with a battery cleaning solution if corroded.
Reconnect the battery ensuring all connections are tight.

3. Inspect Brake System

Check the brake fluid level in the reservoir; refill if necessary with the recommended fluid.
Test the brake switch to ensure it activates when the brake pedal is pressed.
If the switch is faulty, replace it by removing the switch cover and disconnecting the wiring harness.

4. Reset the Vehicle

Reconnect the 12V battery after ensuring all connections are secure.
Perform a soft reset by holding down both scroll wheels on the steering wheel until the touchscreen resets.
Allow the vehicle to power back on and check if the gear selector functions normally.

5. Test Drive

With the vehicle in a safe area, attempt to shift into drive or reverse once again.
Monitor for any error messages or unusual sounds.