how to fix my Tesla Model S Plaid/Refresh that stalls when coming to a stop

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

487 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 stalling issues in Tesla Model S Plaid/Refresh. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the 12V battery before working on electrical systems.
•Allow the vehicle to cool down before inspecting the electric motor components.

Symptoms

•Stalling or complete shutdown of the vehicle when slowing down
•Sudden loss of acceleration response
•Power reduced warning message on the display
•Unusual noises from the electric motor or drivetrain
•Battery warning light illuminated

Diagnostic Steps

1
Check for any error codes using the Tesla service diagnostic tools.
2
Inspect the battery health and state of charge using the Tesla app or onboard diagnostics.
3
Test the brake pedal switch to ensure it is functioning correctly.
4
Verify the condition and connections of the high-voltage battery cables.
5
Check for software updates and apply them if available.
6
Conduct a visual inspection of the electric motor and drivetrain components.

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
•Multimeter
•Socket set

Parts Required

•Brake pedal switch (if faulty)
•Battery terminal connectors (if corroded)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check for any error codes using the Tesla service diagnostic tools.
2
Inspect the battery health and state of charge using the Tesla app or onboard diagnostics.
3
Test the brake pedal switch to ensure it is functioning correctly.
4
Verify the condition and connections of the high-voltage battery cables.
5
Check for software updates and apply them if available.
6
Conduct a visual inspection of the electric motor and drivetrain components.

Solution

1. Preparation

Tools Required: Tesla diagnostic tool, multimeter, socket set.
Ensure the vehicle is parked on a level surface and power is off.
Disconnect the 12V battery to prevent any electrical shorts.

2. Update Software

Connect to Wi-Fi to allow the vehicle to check for and download any available software updates.
Follow the on-screen prompts to install the updates.
Restart the vehicle once the update is complete to ensure the new software is activated.

3. Inspect Brake Pedal Switch

Tools Required: Multimeter.
Locate the brake pedal switch near the brake pedal assembly.
Use the multimeter to check the continuity of the switch when pressed.
If the switch is faulty, remove it by unscrewing it and replace it with a new one.

4. Inspect High-Voltage Battery Connections

Remove the cover of the battery compartment using a socket set.
Check all high-voltage connections for corrosion or looseness.
Tighten any loose connections and clean any corrosion present.

5. Test Battery Health

Reconnect the 12V battery and power on the vehicle.
Use the Tesla diagnostic tool to assess the health of the main battery.
If the battery health is below 70%, consider replacing the battery pack.