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

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 troubleshoot and fix transmission issues in Tesla Model S (2012-2020). Step-by-step guide with diagnostic steps and solutions.

Affected Component

Transmission

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the 12V battery before working on electrical systems.
•Ensure the vehicle is on a flat surface with the parking brake engaged before performing repairs.

Symptoms

•Gear selector not responding
•No power to drive or reverse
•Dashboard shows 'Park' only
•Warning message on the screen regarding transmission
•No sound from the electric motors when attempting to engage drive

Diagnostic Steps

1
Inspect the gear selector position and ensure it is properly engaged.
2
Scan the vehicle's onboard diagnostics using an OBD-II scanner for any error codes related to the transmission or powertrain.
3
Check the battery state of charge to ensure it is above the minimum required to operate.
4
Verify the functionality of the brake pedal; ensure it is fully depressed when attempting to shift gears.
5
Inspect for any physical obstructions or debris around the gear selector mechanism.
6
Perform a soft reset of the vehicle’s systems by holding down the scroll wheels on the steering wheel until the screen resets.

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
•Multimeter
•Basic hand tools

Parts Required

•Replacement 12V battery (if necessary)
•Brake light switch (if malfunctioning)

Related Faults

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Diagnostic Steps

1
Inspect the gear selector position and ensure it is properly engaged.
2
Scan the vehicle's onboard diagnostics using an OBD-II scanner for any error codes related to the transmission or powertrain.
3
Check the battery state of charge to ensure it is above the minimum required to operate.
4
Verify the functionality of the brake pedal; ensure it is fully depressed when attempting to shift gears.
5
Inspect for any physical obstructions or debris around the gear selector mechanism.
6
Perform a soft reset of the vehicle’s systems by holding down the scroll wheels on the steering wheel until the screen resets.

Solution

1. Preparation

Tools Required: OBD-II scanner, multimeter, basic hand tools.
Ensure the vehicle is parked on a level surface and the parking brake is engaged.
Disconnect the 12V battery for safety.

2. Check Gear Selector

Remove the center console cover to access the gear selector wiring.
Inspect the wiring harness for any damage or loose connections.
Reconnect any loose connectors and ensure that the gear selector is not physically obstructed.

3. Inspect Battery State

Use a multimeter to check the 12V battery voltage.
If the voltage is below 12.0 volts, charge or replace the battery as necessary.

4. Brake System Verification

Confirm that the brake pedal is functioning. Check for any obstruction in the brake pedal area.
If the brake light switch is malfunctioning, replace it to ensure it correctly signals the vehicle to engage gears.

5. System Reset

Reconnect the 12V battery after completing checks.
Perform a soft reset of the vehicle by holding down the scroll wheels on the steering wheel until the main screen resets.
Once the vehicle restarts, attempt to shift into gear again.