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What are the known transmission shuddering problems in the 2020 Highlander? - Toyota Highlander
Home/Cars/Toyota/Highlander/Fourth Generation (2020-present)/What are the known transmission shuddering problems in the 2020 Highlander?

What are the known transmission shuddering problems in the 2020 Highlander?

Toyota Highlander Fourth Generation (2020-present)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Error Code: P0700, P0720
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
4 min read
641 words

Problem Statement

Learn about the known transmission shuddering issues in the 2020 Toyota Highlander, including symptoms, diagnostic steps, and repair instructions.

Error Code
P0700, P0720
Affected Component
Transmission
Estimated Time
2-4 hours

Symptoms

  • •Shuddering or Vibrating During Acceleration
  • •Delayed or Harsh Shifting
  • •Increased Engine RPMs
  • •Check Engine Light

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

  • •OBD-II Scanner
  • •Torque wrench
  • •10mm and 12mm socket set
  • •Transmission fluid dipstick
  • •Funnel
  • •Jack and jack stands (or a hydraulic lift)
  • •Transmission fluid (Toyota WS)
  • •Rags or shop towels

Additional Information

Error Code
P0700, P0720
Affected Component
Transmission
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
8 items

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Back to Generation
Known Transmission Shuddering Problems in the 2020 Toyota Highlander

The 2020 Toyota Highlander, particularly in its fourth generation (XU70), has been reported to exhibit transmission shuddering issues under various conditions. Below, we will outline the symptoms, diagnostic steps, tools required, and repair instructions for addressing these problems.

Tools Required
  • OBD-II Scanner
  • Torque wrench
  • 10mm and 12mm socket set
  • Transmission fluid dipstick
  • Funnel
  • Jack and jack stands (or a hydraulic lift)
  • Transmission fluid (Toyota WS)
  • Rags or shop towels
Repair Instructions

Step 1: Change Transmission Fluid (if necessary)

  1. Lift the Vehicle:

    • Use a jack to lift the vehicle and secure it with jack stands.

  2. Drain the Old Fluid:

    • Locate the transmission drain plug (consult the owner’s manual for location).
    • Use a 12mm socket to remove the drain plug and allow the old fluid to drain into a suitable container.

  3. Replace the Filter (if applicable):

    • Depending on the transmission type, remove the transmission pan using a 10mm socket.
    • Replace the filter inside the transmission (if applicable) according to the manufacturer’s specifications.

  4. Reinstall the Pan:

    • Clean the pan and apply a new gasket if necessary.
    • Reinstall the pan and torque the bolts to factory specifications.

  5. Fill New Fluid:

    • Use a funnel to add new Toyota WS transmission fluid through the dipstick tube.
    • Fill until the level is at the "full" mark on the dipstick while the engine is running.

Step 2: Address Any Fault Codes

  1. Clear DTCs:

    • After the fluid change, use the OBD-II scanner to clear any existing error codes.

  2. Test Drive Again:

    • Conduct another test drive to see if the shuddering persists. Monitor for any reoccurring codes.

Step 3: Inspect and Replace Transmission Mounts

  1. Inspect Mounts:

    • If shuddering continues, inspect the transmission mounts for signs of wear or damage.

  2. Replace Mounts (if necessary):

    • Support the transmission with a jack.
    • Remove the bolts securing the damaged mount using the appropriate socket.
    • Replace with new mounts and torque bolts to specification.
Conclusion

If after following these steps the shuddering persists, it may indicate a more serious transmission issue such as torque converter problems or internal transmission failures. In such cases, it is advisable to take the vehicle to a certified Toyota technician or a qualified transmission specialist for further diagnosis and repair.

Always refer to the vehicle’s service manual for specific torque specifications and procedures tailored to the 2020 Toyota Highlander.