how to fix my Tesla Model S Original (2012-2020) that won't shift into gear

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-3 hours

Time

medium

Difficulty

high

Severity

3 min read

479 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 transmission issues in Tesla Model S (2012-2020) where the gear selector fails to respond. Step-by-step guide included.

Affected Component

Transmission

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the 12V battery before working on electrical components to prevent short circuits

Symptoms

•Gear selector not responding
•Warning message displayed on the dashboard
•Vehicle remains stationary despite gear selection
•Inability to engage drive or reverse
•Frequent errors in the touchscreen interface related to gear selection

Diagnostic Steps

1
Check the state of the 12V battery using a multimeter to ensure adequate voltage (should be above 12.4V)
2
Inspect the gear selector for any physical obstructions or damage
3
Scan the vehicle's computer system for any error codes using an OBD-II scanner or Tesla diagnostic tool
4
Verify the software version and check for any available updates that may address shifting issues
5
Inspect the wiring and connectors associated with the gear selector and transmission for damage or corrosion

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

•OBD-II scanner or Tesla diagnostic tool
•Multimeter
•Socket set
•Screwdriver set

Parts Required

•Replacement 12V battery (if necessary)
•Wiring harness (if damaged)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the state of the 12V battery using a multimeter to ensure adequate voltage (should be above 12.4V)
2
Inspect the gear selector for any physical obstructions or damage
3
Scan the vehicle's computer system for any error codes using an OBD-II scanner or Tesla diagnostic tool
4
Verify the software version and check for any available updates that may address shifting issues
5
Inspect the wiring and connectors associated with the gear selector and transmission for damage or corrosion

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a flat surface and is in "Park."
Disconnect the 12V battery for safety before working on electrical components.

2. Inspect and Replace the 12V Battery (if necessary)

Sub-steps:
1. Remove the access cover to the 12V battery located in the front trunk.
2. Disconnect the negative terminal first, followed by the positive terminal.
3. Remove the battery from its bracket.
4. Install the new battery, ensuring it is secured in place.
5. Connect the positive terminal first, followed by the negative terminal.
6. Reattach the access cover.

3. Check and Repair Wiring/Connections

Sub-steps:
1. Locate the wiring harness associated with the gear selector.
2. Visually inspect for any signs of wear, fraying, or corrosion.
3. Use a multimeter to test continuity in the wiring.
4. Repair or replace any damaged wires or connectors as necessary.

4. Update Software

Sub-steps:
1. Connect the vehicle to Wi-Fi.
2. Access the software update section in the vehicle settings.
3. Download and install any available updates.
4. Restart the vehicle after the update is complete.