why is my Tesla Model S Original (2012-2020) transmission slipping

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

2 min read

399 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 slipping in Tesla Model S (2012-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the high-voltage battery before working on electrical systems.
•Allow the vehicle to cool down before inspecting components to avoid burns.

Symptoms

•Loss of acceleration
•Unusual high revs without corresponding speed increase
•Warning messages on the dashboard
•Intermittent power delivery
•Increased energy consumption

Diagnostic Steps

1
Check the vehicle's software version and ensure it is up-to-date.
2
Use Tesla’s diagnostic tool to scan for any fault codes related to the powertrain.
3
Inspect the vehicle's battery state of charge and health.
4
Examine the drive unit for any signs of physical damage or leaks.
5
Test the electrical connections to the drive unit and inverter for any loose or corroded connections.

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 diagnostic tool
•Multimeter
•Socket set
•Torque wrench

Parts Required

•Electrical connectors (if damaged)
•Drive unit mount (if worn)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the vehicle's software version and ensure it is up-to-date.
2
Use Tesla’s diagnostic tool to scan for any fault codes related to the powertrain.
3
Inspect the vehicle's battery state of charge and health.
4
Examine the drive unit for any signs of physical damage or leaks.
5
Test the electrical connections to the drive unit and inverter for any loose or corroded connections.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface, and the parking brake is engaged.
Disconnect the high-voltage battery for safety.

2. Inspect the Drive Unit

Remove the underbody panel using a socket set.
Inspect the drive unit for any fluid leaks or damage.
Check the condition of the drive unit mounts for signs of wear or fatigue.

3. Check Electrical Connections

Reconnect the high-voltage battery.
Use a multimeter to test voltage at the drive unit connections.
Tighten any loose connections and clean any corrosion from terminals.

4. Update Software

Reconnect the vehicle to Wi-Fi.
Access the vehicle settings to check for software updates.
Follow on-screen prompts to install any available updates.

5. Test Drive

Reconnect the underbody panel.
Conduct a test drive to monitor performance and check for slipping.