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What are the typical issues with the power windows in the 2020 Toyota Highlander? - Toyota Highlander
Home/Cars/Toyota/Highlander/Fourth Generation (2020-present)/What are the typical issues with the power windows in the 2020 Toyota Highlander?

What are the typical issues with the power windows in the 2020 Toyota Highlander?

Toyota Highlander Fourth Generation (2020-present)

Error Codes
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
4 min read
619 words

Problem Statement

Learn about typical power window problems in the 2020 Toyota Highlander, including symptoms, diagnostic steps, and repair instructions.

Affected Component
power window system

Symptoms

  • •Window Won't Move
  • •Window Moves Slowly
  • •Window Stuck
  • •Unusual Noises
  • •Intermittent Operation

Diagnostic Steps

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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
  • •Screwdrivers (Phillips and flathead)
  • •Trim removal tools
  • •Replacement fuses (if necessary)
  • •Replacement window motor (if needed)
  • •Electrical contact cleaner (optional)
  • •Wiring harness repair kit (if needed)

Additional Information

Affected Component
power window system
Difficulty
medium
Severity
medium
Tools Required
7 items

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Typical Issues with Power Windows in the 2020 Toyota Highlander

The power window system in the 2020 Toyota Highlander, like many modern vehicles, can experience several common issues. Below are the symptoms, diagnostic steps, tools required, and repair instructions for addressing these power window problems.

Common Symptoms
  1. Window Won't Move: The window does not respond when the switch is pressed.
  2. Window Moves Slowly: The window operates but moves slower than normal.
  3. Window Stuck: The window is partially open or closed and won't move.
  4. Unusual Noises: Grinding or clicking sounds when the window switch is activated.
  5. Intermittent Operation: The window works sporadically, sometimes functioning and sometimes not.

Step 1: Visual Inspection

  • Check Window Lock: Ensure the window lock switch is not activated.
  • Inspect for Obstructions: Check the window tracks for any debris or obstructions.
  • Look for Damage: Examine the window glass for cracks or breaks and the surrounding weather stripping for wear.

Step 2: Functional Test

  • Test Each Window: Operate each window switch to determine if the issue is isolated to one window or affects multiple windows.
  • Check Master Switch: Use the master control on the driver’s side to see if it operates all windows.

Step 3: Electrical Testing

  • Use a Multimeter: Check for voltage at the window motor connector while pressing the window switch. Expect around 12 volts.
  • Inspect Fuses: Check the power window fuse in the fuse box. Replace if blown.

Step 4: Motor and Switch Testing

  • Isolate the Motor: Disconnect the window motor and check for continuity using a multimeter.
  • Switch Functionality: Test the window switch for continuity when pressed.
Tools Required
  • Multimeter
  • Screwdrivers (Phillips and flathead)
  • Trim removal tools
  • Replacement fuses (if necessary)
  • Replacement window motor (if needed)
  • Electrical contact cleaner (optional)
  • Wiring harness repair kit (if needed)
Repair Instructions

Repair for Non-Responsive Windows

  1. Fuse Replacement:

    • Locate the fuse box (usually under the dashboard or in the engine compartment).
    • Identify the power window fuse using the diagram on the fuse box cover.
    • Remove the blown fuse with a fuse puller and replace it with a new one of the same amperage.

  2. Switch Replacement (if the switch is faulty):

    • Remove the trim panel around the switch using trim removal tools.
    • Disconnect the electrical connector from the switch.
    • Install the new switch by connecting the electrical connector and securing it in place.
    • Reattach the trim panel.

Repair for Slow or Stuck Windows

  1. Motor Replacement:

    • Remove the door panel using screwdrivers and trim removal tools.
    • Disconnect the electrical connector from the window motor.
    • Remove the window motor bolts and take the motor out.
    • Install the new motor by reversing the removal process, ensuring secure connections.

  2. Lubrication of Tracks:

    • If the window is slow, consider applying a silicone-based lubricant to the window tracks.
    • Operate the window up and down to distribute the lubricant evenly.

Repair for Unusual Noises

  1. Inspect for Mechanical Issues:
    • Remove the door panel and check for any damaged components in the window regulator.
    • Replace any broken or worn components, including the regulator or motor.
    • Reinstall any removed parts and the door panel securely.
Conclusion

By following these detailed diagnostic and repair steps, you can effectively troubleshoot and resolve common power window issues in the 2020 Toyota Highlander. Always ensure safety first by disconnecting the battery when working with electrical components. If the problem persists after following these steps, it may be advisable to consult a professional technician for further diagnosis.