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What are the common issues with the power liftgate in the 2021 Toyota Highlander? - Toyota Highlander
Home/Cars/Toyota/Highlander/Fourth Generation (2020-present)/What are the common issues with the power liftgate in the 2021 Toyota Highlander?

What are the common issues with the power liftgate in the 2021 Toyota Highlander?

Toyota Highlander Fourth Generation (2020-present)

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

Problem Statement

Explore common issues with the power liftgate in the 2021 Toyota Highlander, including symptoms, diagnostic steps, tools required, and repair instructions.

Affected Component
power liftgate

Symptoms

  • •Pressing the liftgate button does nothing.
  • •No sounds from the motor or actuator.
  • •Liftgate operates only sometimes.
  • •Liftgate may open when the button is pressed, but not always.
  • •Liftgate does not open or close at a consistent speed.
  • •Warning light on the dashboard indicating an issue with the liftgate.
  • •Liftgate opens or closes partially and then stops.

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
  • •Owner's manual
  • •Basic hand tools (screwdrivers, pliers)
  • •Wiring harness repair kit (if needed)
  • •Torque wrench
  • •OBD-II scanner
  • •Socket set

Additional Information

Affected Component
power liftgate
Difficulty
medium
Severity
medium
Tools Required
7 items

Related Faults

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Common Issues with the Power Liftgate in the 2021 Toyota Highlander

The power liftgate in the 2021 Toyota Highlander is a convenient feature, but like any automotive component, it can occasionally experience problems. Below are some of the common issues associated with the power liftgate, along with symptoms, diagnostic steps, tools required, and repair instructions.

Common Issues

  1. Liftgate Won't Open or Close
  2. Liftgate Opens or Closes Intermittently
  3. Liftgate Opens Too Slowly or Too Quickly
  4. Liftgate Warning Light is Illuminated
  5. Liftgate Stops Midway

1. Liftgate Won't Open or Close

Symptoms:

  • Pressing the liftgate button does nothing.
  • No sounds from the motor or actuator.

Diagnostic Steps:

  • Check the battery voltage. If low, charge or replace.
  • Inspect the fuse for the power liftgate (refer to the owner's manual for location).
  • Check for obstructions in the liftgate mechanism.
  • Verify if the liftgate lock is engaged.

Tools Required:

  • Multimeter
  • Owner's manual
  • Basic hand tools (screwdrivers, pliers)

2. Liftgate Opens or Closes Intermittently

Symptoms:

  • Liftgate operates only sometimes.
  • Liftgate may open when the button is pressed, but not always.

Diagnostic Steps:

  • Inspect the wiring harness for damage or loose connections.
  • Check the liftgate switch for proper function.
  • Test the power liftgate motor.

Tools Required:

  • Multimeter
  • Wiring harness repair kit (if needed)
  • Basic hand tools

3. Liftgate Opens Too Slowly or Too Quickly

Symptoms:

  • Liftgate does not open or close at a consistent speed.

Diagnostic Steps:

  • Check for obstructions in the liftgate's path.
  • Inspect the liftgate struts for wear or failure.
  • Review the liftgate calibration settings.

Tools Required:

  • Torque wrench
  • Basic hand tools

4. Liftgate Warning Light is Illuminated

Symptoms:

  • Warning light on the dashboard indicating an issue with the liftgate.

Diagnostic Steps:

  • Use an OBD-II scanner to check for any related trouble codes.
  • Inspect the liftgate sensors for dirt or damage.
  • Verify proper function of the liftgate motor and actuators.

Tools Required:

  • OBD-II scanner
  • Basic hand tools

5. Liftgate Stops Midway

Symptoms:

  • Liftgate opens or closes partially and then stops.

Diagnostic Steps:

  • Inspect the liftgate hinges for binding or obstruction.
  • Check the liftgate motor for proper operation.
  • Review the liftgate's limit switch for functionality.

Tools Required:

  • Multimeter
  • Basic hand tools
Repair Instructions

General Repair Procedures

  1. Checking Fuses

    • Locate the fuse box as per the owner’s manual.
    • Remove the power liftgate fuse using a fuse puller.
    • Inspect the fuse; replace if blown.

  2. Inspecting Wiring Harness

    • Remove the interior panel of the liftgate using basic hand tools.
    • Inspect the wiring harness for frays or damage.
    • Repair or replace wiring as needed.

  3. Testing the Liftgate Motor

    • Disconnect the liftgate motor connector.
    • Use a multimeter to check for voltage at the connector when the liftgate button is pressed.
    • If voltage is present and the motor does not work, replace the motor.

  4. Replacing Liftgate Struts

    • Support the liftgate in the open position.
    • Remove the old struts using a socket set.
    • Install new struts by reversing the removal process.

  5. Reprogramming Liftgate Settings

    • Open the liftgate fully.
    • Hold the close button on the key fob for a few seconds to reset the calibration.
    • Test the liftgate operation to confirm calibration.

  6. Cleaning Sensors

    • Locate the liftgate sensors.
    • Clean the sensors with a soft cloth and mild cleaner to remove any dirt or debris.
Conclusion

The power liftgate issues on the 2021 Toyota Highlander can usually be diagnosed and fixed with the right tools and procedures. Following the steps outlined above can help identify and resolve the problems you may encounter with the liftgate system. Always consult the owner’s manual for specific details and safety precautions. If issues persist, consider seeking professional assistance or contacting a Toyota dealership for further diagnostics.