what should I do if my Tesla Model S Plaid/Refresh (2021-present) windshield wipers won't turn off?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

483 words

Problem Statement

Learn how to troubleshoot and fix windshield wipers that won't turn off on your Tesla Model S Plaid. Step-by-step guide with diagnostic steps and repair instructions.

Affected Component

Electrical

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent shock or short circuits.
•Allow the vehicle to cool down before inspecting the wiper motor area.

Symptoms

•Windshield wipers continuously running
•Wiper control stalk unresponsive
•Possible dashboard warning messages
•Wiper operation inconsistent with rain detection
•Battery drain if wipers are left running for extended periods

Diagnostic Steps

1
Check the wiper control settings in the touchscreen interface for any misconfigurations.
2
Inspect the wiper control stalk for physical damage or obstruction.
3
Perform a soft reset of the vehicle by holding down the scroll wheels on the steering wheel until the screen reboots.
4
Use the Tesla app or touchscreen to check for any software updates that may address the issue.
5
Scan the vehicle’s system for diagnostic trouble codes (DTCs) related to the wiper control system using a compatible OBD-II scanner.

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
•Socket set
•Screwdriver set

Parts Required

•Wiper control stalk (if replacement is needed)
•Wiper control module (if found faulty)

Related Faults

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Diagnostic Steps

1
Check the wiper control settings in the touchscreen interface for any misconfigurations.
2
Inspect the wiper control stalk for physical damage or obstruction.
3
Perform a soft reset of the vehicle by holding down the scroll wheels on the steering wheel until the screen reboots.
4
Use the Tesla app or touchscreen to check for any software updates that may address the issue.
5
Scan the vehicle’s system for diagnostic trouble codes (DTCs) related to the wiper control system using a compatible OBD-II scanner.

Solution

1. Preparation

Ensure the vehicle is in park and turned off.
Gather necessary tools, including an OBD-II scanner if needed.
Disconnect the 12V battery for safety before working on electrical components.

2. Check Wiper Control Module

Locate the wiper control module, usually found under the dashboard.
Remove the dashboard cover (if necessary) using a socket set.
Inspect the connections and wiring harness for corrosion or looseness.
If any damage is found, repair or replace the connectors as needed.

3. Replace Wiper Control Stalk (if necessary)

If the stalk is found faulty during inspection, remove it by:
- Disconnecting the battery again.
- Unscrewing the screws securing the steering column cover.
- Detaching the wiper control stalk from the steering column.
Install a new wiper control stalk and secure it in place.
Reassemble the steering column cover and reconnect the battery.

4. Reconnect Battery and Test

Reconnect the 12V battery.
Start the vehicle and test the wiper operation using the control stalk.
Ensure wipers respond appropriately to both manual and automatic settings.