my Tesla Model S Plaid’s wipers won’t turn off, what could be wrong

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

569 words

Problem Statement

Learn how to diagnose and fix windshield wipers that won't turn off in Tesla Model S Plaid. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the vehicle battery before working on electrical systems.
•Allow the vehicle to cool before performing any maintenance.

Symptoms

•Wipers continuously operate regardless of the wiper switch position
•Wiper speed may not adjust properly
•Possible 'wiper malfunction' message on the display
•Intermittent wiper function may not work
•Battery drain due to constant wiper operation

Diagnostic Steps

1
Inspect the wiper control stalk for physical damage or obstructions.
2
Check for software updates in the vehicle's settings; perform any available updates.
3
Use the Tesla service mode to run a diagnostic check on the wiper system.
4
Examine the wiring harness leading to the wiper motor for signs of wear or shorts.
5
Scan the vehicle’s onboard diagnostics using a Tesla-specific diagnostic tool for error codes.

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

•Torx screwdriver
•Socket wrench set
•Electrical contact cleaner
•Wiring repair kit
•Wiper arm puller tool

Parts Required

•Wiper motor
•Wiper blades

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Diagnostic Steps

1
Inspect the wiper control stalk for physical damage or obstructions.
2
Check for software updates in the vehicle's settings; perform any available updates.
3
Use the Tesla service mode to run a diagnostic check on the wiper system.
4
Examine the wiring harness leading to the wiper motor for signs of wear or shorts.
5
Scan the vehicle’s onboard diagnostics using a Tesla-specific diagnostic tool for error codes.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the ignition is turned off.
Disconnect the vehicle battery to prevent any electrical shock.

2. Inspect and Clean the Wiper Control Stalk

Remove the steering column cover using a Torx screwdriver.
Carefully detach the control stalk from the steering column.
Inspect for any debris or moisture; clean with electrical contact cleaner if necessary.
Reconnect the control stalk and secure the steering column cover.

3. Check Software and Reboot Systems

With the vehicle powered on, access the touchscreen menu.
Navigate to "Software" and check for updates; if available, proceed with the installation.
Perform a soft reset by holding down both scroll wheels on the steering wheel until the screen reboots.

4. Inspect Wiring and Connectors

Open the hood and locate the wiper motor assembly.
Visually inspect the wiring harness for wear, fraying, or loose connections.
Disconnect and reconnect the wiring harness to ensure a good connection.
If necessary, repair any damaged wires with electrical tape or replace the wiring harness.

5. Replace Wiper Motor (if needed)

If diagnostics indicated a wiper motor failure, remove the wiper arms by loosening the retaining nut with a socket wrench.
Use a puller tool if necessary to remove the wiper arms.
Unbolt the wiper motor from its mount and disconnect the electrical connector.
Install the new wiper motor, reconnect the electrical connector, and secure it with bolts.
Reattach the wiper arms and ensure they function properly.