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What are the common windshield wiper problems in a 2020 Toyota Highlander? - Toyota Highlander
Home/Cars/Toyota/Highlander/Fourth Generation (2020-present)/What are the common windshield wiper problems in a 2020 Toyota Highlander?

What are the common windshield wiper problems in a 2020 Toyota Highlander?

Toyota Highlander Fourth Generation (2020-present)

Error Codes
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
5 min read
950 words

Problem Statement

Learn about common windshield wiper problems in the 2020 Toyota Highlander, including symptoms, diagnostic steps, and repair instructions.

Affected Component
windshield wipers

Symptoms

  • •Wiper blades do not move when activated
  • •No noise from the wiper motor
  • •Wipers speed up or slow down unexpectedly
  • •Wipers leave streaks on the windshield
  • •Wipers operate at a slower speed than normal
  • •Wipers do not park in the correct position
  • •Grinding, squeaking, or other unusual noises when wipers are activated

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
  • •Fuse puller
  • •Screwdriver set
  • •Replacement wiper blades
  • •Glass cleaner
  • •Lubricant (e.g., white lithium grease)

Additional Information

Affected Component
windshield wipers
Difficulty
medium
Severity
medium
Tools Required
6 items

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Back to Generation

Common Windshield Wiper Problems in a 2020 Toyota Highlander (Fourth Generation)

Windshield wiper problems can be frustrating and can compromise visibility during adverse weather conditions. Below are some common issues associated with the windshield wipers of a 2020 Toyota Highlander, along with symptoms, diagnostic steps, tools required, and repair instructions.

Common Problems
  1. Wipers Not Functioning
  2. Intermittent Wiper Speed Issues
  3. Wipers Streaking or Skipping
  4. Wipers Moving Slowly
  5. Wipers Stuck in an Upright Position
  6. Wiper Motor Noise
Problem 1: Wipers Not Functioning
Tools Required:
  • Multimeter
  • Fuse puller
  • Screwdriver set
Repair Instructions:

  1. Check the Fuse:

    • Locate the fuse box (usually under the dashboard or in the engine compartment).
    • Identify the wiper fuse (refer to the owner's manual for location).
    • Remove the fuse and check if it is blown. Replace if necessary.

  2. Inspect the Wiper Switch:

    • Remove the steering column cover using a screwdriver.
    • Disconnect the wiring from the wiper switch.
    • Use a multimeter to check continuity in the switch.

  3. Test the Wiper Motor:

    • Disconnect the wiper motor connector.
    • Use a multimeter to check for voltage at the connector while activating the switch.
    • If there is no power, check the wiring harness for damage.

  4. Replace the Wiper Motor:

    • If the motor is faulty, remove the wiper arms using a puller tool.
    • Unbolt the motor and replace it with a new one. Reconnect the wiring and reassemble.
Problem 2: Intermittent Wiper Speed Issues
Tools Required:
  • Multimeter
  • Screwdriver set
Repair Instructions:

  1. Inspect the Wiper Speed Switch:

    • Remove the steering column cover.
    • Check for any loose connections or damaged wiring at the switch.
    • Test the switch for continuity at different speed settings using a multimeter.

  2. Check the Wiper Motor:

    • If the switch is functioning properly, check the wiper motor's speed settings.
    • If the motor does not respond correctly to different speeds, replace the motor.
Problem 3: Wipers Streaking or Skipping
Tools Required:
  • Replacement wiper blades
  • Glass cleaner
Repair Instructions:

  1. Inspect and Clean:

    • Examine the wiper blades for cracks, tears, or hardening.
    • Clean the windshield with an appropriate glass cleaner to remove debris or oils.

  2. Replace Wiper Blades:

    • If blades are damaged, replace them with new ones.
    • Lift the wiper arm, press the release tab on the blade, and slide it off.
    • Slide the new blade onto the arm and ensure it clicks into place.
Problem 4: Wipers Moving Slowly
Tools Required:
  • Lubricant (e.g., white lithium grease)
  • Multimeter
Repair Instructions:

  1. Inspect the Wiper Motor:

    • Check the wiper motor for any unusual noises or signs of wear.
    • Test the motor with a multimeter to ensure it is receiving proper voltage.

  2. Lubricate the Linkage:

    • Remove the wiper arms and cowling to access the linkage.
    • Apply lubricant to the joints and pivots of the linkage to ensure smooth operation.

  3. Replace the Wiper Motor:

    • If the motor is faulty, replace it as outlined in Problem 1's repair instructions.
Problem 5: Wipers Stuck in an Upright Position
Tools Required:
  • Multimeter
  • Screwdriver set
Repair Instructions:

  1. Inspect the Wiper Motor and Linkage:

    • Check for any damaged parts or loose connections.
    • If the linkage is damaged, replace it.

  2. Test the Wiper Park Switch:

    • Use a multimeter to check if the park switch is functioning correctly.
    • Replace the switch if it is defective.
Problem 6: Wiper Motor Noise
Tools Required:
  • Lubricant
  • Screwdriver set
Repair Instructions:

  1. Inspect and Clean:

    • Remove the wiper arms and cowling to access the motor.
    • Clean out any debris that may have accumulated in the motor assembly.

  2. Lubricate the Linkage:

    • Apply lubricant to the wiper linkage and motor gears.
    • Ensure all moving parts are free of obstruction.

  3. Replace Wiper Motor:

    • If noise persists, consider replacing the wiper motor as described in earlier repairs.

By following these detailed steps, you can effectively diagnose and repair common windshield wiper problems on the 2020 Toyota Highlander. Always refer to the vehicle's service manual for specific instructions and safety precautions.