FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
How do I fix a malfunctioning power window in my 2020 Toyota Highlander? - Toyota Highlander
Home/Cars/Toyota/Highlander/Fourth Generation (2020-present)/How do I fix a malfunctioning power window in my 2020 Toyota Highlander?

How do I fix a malfunctioning power window in my 2020 Toyota Highlander?

Toyota Highlander Fourth Generation (2020-present)

Error Codes
2-3 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
600 words

Problem Statement

Step-by-step guide to diagnose and repair a malfunctioning power window in a 2020 Toyota Highlander, including symptoms, diagnostic steps, and required tools.

Affected Component
power window system
Estimated Time
2-3 hours

Symptoms

  • •Window Does Not Move
  • •Intermittent Operation
  • •Unusual Noises
  • •Window Stuck

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

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

  • •Multimeter
  • •Screwdriver set (Phillips and flathead)
  • •Trim removal tools
  • •Torque wrench (if applicable)
  • •Replacement parts (window switch, motor, or fuse as needed)

Additional Information

Affected Component
power window system
Estimated Time
2-3 hours
Difficulty
medium
Severity
medium
Tools Required
5 items

Related Faults

Loading...

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation
Fixing a Malfunctioning Power Window in a 2020 Toyota Highlander
Tools Required
  • Multimeter
  • Screwdriver set (Phillips and flathead)
  • Trim removal tools
  • Torque wrench (if applicable)
  • Replacement parts (window switch, motor, or fuse as needed)
Repair Instructions

Step 1: Gather Tools and Prepare

  • Ensure the vehicle is parked on a flat surface with the ignition off.
  • Disconnect the negative battery terminal to avoid electrical shocks.

Step 2: Check the Window Lock Switch

  1. Locate the Window Lock Switch: It is usually on the driver’s side door panel.
  2. Toggle the Switch: Make sure it’s in the “unlocked” position and try the windows again.

Step 3: Inspect and Replace Fuses

  1. Locate the Fuse Box: Typically found under the dashboard or in the engine compartment.
  2. Check the Power Window Fuse: Use the diagram on the fuse box cover to locate the power window fuse.
  3. Replace if Blown: If the fuse is blown, replace it with an identical amperage fuse.

Step 4: Test the Window Switch

  1. Remove Door Panel: Use a trim removal tool or screwdriver to carefully remove screws and clips holding the door panel.
  2. Access the Window Switch: Disconnect the switch from the harness.
  3. Use a Multimeter: Set the multimeter to continuity mode and test the switch by pressing it. If it does not show continuity, replace the switch.

Step 5: Inspect Wiring and Connectors

  1. Visual Inspection: Check for frayed wires or broken connectors between the switch and motor.
  2. Repair or Replace: If damaged, repair the wiring with electrical tape or replace the connector.

Step 6: Test the Window Motor

  1. Access the Window Motor: With the door panel removed, locate the window motor.
  2. Apply Power Directly: Use jumper wires to connect the motor directly to the battery to see if it operates.
    • Positive to positive and negative to negative.
  3. Replace if Necessary: If the motor does not operate, replace it.

Step 7: Reassemble the Door Panel

  1. Reattach the Door Panel: Align it back into position and reinsert screws and clips.
  2. Reconnect the Battery: Reconnect the negative battery terminal.

Step 8: Final Testing

  1. Test the Window: Turn on the ignition and test the window function again.
  2. Repeat for All Windows: Check all other windows for proper operation.
Conclusion

By following these steps, you should be able to diagnose and repair the malfunctioning power window in your 2020 Toyota Highlander. If the problem persists after these troubleshooting steps, consider consulting a professional mechanic for further diagnosis.