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How do I fix the windshield wiper issues in my 2021 Toyota Highlander? - Toyota Highlander
Home/Cars/Toyota/Highlander/Fourth Generation (2020-present)/How do I fix the windshield wiper issues in my 2021 Toyota Highlander?

How do I fix the windshield wiper issues in my 2021 Toyota Highlander?

Toyota Highlander Fourth Generation (2020-present)

Error Codes
2 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
4 min read
661 words

Problem Statement

A detailed guide on diagnosing and fixing common windshield wiper issues in your 2021 Toyota Highlander, including symptoms, diagnostic steps, and repair instructions.

Affected Component
windshield wipers
Estimated Time
2 hours

Symptoms

  • •Wipers Not Moving
  • •Wipers Stuttering or Skipping
  • •Wipers Moving Slowly
  • •Wipers Stuck in One Position

Diagnostic Steps

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

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
  • •Fuse puller
  • •Socket set
  • •Pliers

Additional Information

Affected Component
windshield wipers
Estimated Time
2 hours
Difficulty
medium
Severity
medium
Tools Required
4 items

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Fixing Windshield Wiper Issues in a 2021 Toyota Highlander

Windshield wiper problems can be caused by several factors, including faulty wiper blades, malfunctioning wiper motors, or issues with the electrical system. Below is a detailed guide to diagnosing and fixing common windshield wiper issues in your 2021 Toyota Highlander.

Step 1: Visual Inspection
  • Tools Required: None
  • Instructions:
    • Check the wiper blades for wear or damage; look for tearing or cracking.
    • Inspect the wiper arms to ensure they are not bent or loose.
    • Look for any obstructions in the wiper pathway (e.g., ice, debris).
Step 2: Test Wiper Functionality
  • Tools Required: None
  • Instructions:
    • Activate the wipers at different speeds and settings (intermittent, low, and high) to see if they respond.
    • Listen for any unusual noises like grinding or clicking.
Step 3: Check Wiper Motor and Fuse
  • Tools Required: Multimeter, fuse puller
  • Instructions:
    1. Locate the fuse box (usually under the dashboard or in the engine compartment).
    2. Check the wiper fuse (refer to the owner's manual for the exact location).
    3. Use a multimeter to test for continuity in the fuse. If blown, replace it.
    4. If the fuse is intact, locate the wiper motor assembly (usually near the base of the windshield).
    5. Disconnect the motor connector and test for voltage while operating the wipers with the multimeter.
    6. If no voltage is present, check the wiring for damage or loose connections.
Step 4: Inspect the Wiper Linkage
  • Tools Required: Socket set, pliers
  • Instructions:
    1. Remove the windshield wiper arms using a puller or socket (typically a 14mm socket).
    2. Take off the plastic cover to expose the wiper motor and linkage.
    3. Inspect the linkage for any signs of wear or breakage.
    4. If the linkage is damaged, it will need to be replaced.
Step 5: Examine the Wiper Motor
  • Tools Required: Socket set, multimeter
  • Instructions:
    1. If the motor is suspected to be faulty, remove it by unbolting it from its mounting location.
    2. Use a multimeter to test the motor for continuity by connecting the positive and negative leads to the terminals.
    3. If there is no continuity, the motor is defective and requires replacement.
Repair Instructions
Replacing Wiper Blades
  1. Lift the wiper arms away from the windshield.
  2. Press the tab on the wiper blade connector and slide the blade off the arm.
  3. Attach the new wiper blade by sliding it into the connector until it clicks.
  4. Repeat for the other side.
Replacing the Wiper Motor
  1. Disconnect the negative battery terminal to prevent electrical shorts.
  2. Remove the wiper arms and any necessary covers to access the motor.
  3. Unplug the motor connector and remove the mounting bolts.
  4. Install the new motor in reverse order of removal, ensuring all connections are secure.
  5. Reconnect the battery terminal and test the wipers.
Fixing or Replacing Wiper Linkage
  1. If the linkage is damaged, remove it by unbolting it from the motor and arms.
  2. Install the new linkage by aligning it with the motor and wiper arms.
  3. Reattach all bolts and covers, and test the wipers.
Final Steps
  • After completing repairs, test the wipers for proper operation.
  • Ensure they function at all speeds and return to the resting position when turned off.
Conclusion

By following these diagnostic and repair steps, you should be able to resolve the windshield wiper issues on your 2021 Toyota Highlander. Always refer to your vehicle's service manual for specific details and torque specifications if needed.