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Why does my 2020 Toyota Highlander have difficulty shifting gears? - Toyota Highlander
Home/Cars/Toyota/Highlander/Fourth Generation (2020-present)/Why does my 2020 Toyota Highlander have difficulty shifting gears?

Why does my 2020 Toyota Highlander have difficulty shifting gears?

Toyota Highlander Fourth Generation (2020-present)

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

Problem Statement

Learn how to diagnose and fix shifting issues in your 2020 Toyota Highlander with our detailed guide on symptoms, diagnostic steps, and repair instructions.

Affected Component
transmission

Symptoms

  • •Delayed Shifting
  • •Harsh Shifting
  • •Slipping Gears
  • •Warning Lights

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

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
  • •Transmission fluid dipstick
  • •Multimeter
  • •Basic hand tools (screwdrivers, wrenches, etc.)
  • •Jack and jack stands (if needed for undercar inspection)
  • •Transmission fluid (recommended type for your vehicle)

Additional Information

Affected Component
transmission
Difficulty
medium
Severity
medium
Tools Required
6 items

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Problem: Difficulty Shifting Gears in 2020 Toyota Highlander
Tools Required
  • OBD-II Scanner
  • Transmission fluid dipstick
  • Multimeter
  • Basic hand tools (screwdrivers, wrenches, etc.)
  • Jack and jack stands (if needed for undercar inspection)
  • Transmission fluid (recommended type for your vehicle)
Repair Instructions

Step 1: Check Transmission Fluid

  1. Ensure the vehicle is parked on a level surface and the engine is running.
  2. Remove the transmission dipstick and wipe it clean.
  3. Reinsert the dipstick, remove it again, and check the fluid level.
  4. If low, add the specified transmission fluid through the dipstick tube until it reaches the proper level.

Step 2: Address Fluid Condition

  1. If the fluid is dark or has a burnt smell, a transmission fluid change is necessary.
  2. Drain the old fluid using a transmission drain pan.
  3. Replace the transmission filter if applicable and refill with new fluid.

Step 3: Inspect and Test the Transmission Range Sensor

  1. Locate the transmission range sensor (usually mounted on the transmission).
  2. Disconnect the electrical connector.
  3. Check the resistance using a multimeter while moving the gear selector through its range.
  4. Replace the sensor if it does not meet specifications.

Step 4: Electrical System Check

  1. Inspect all wiring and connectors for damage.
  2. Use a multimeter to check voltage at the transmission solenoid connectors.
  3. Repair or replace any faulty wiring or connectors.

Step 5: Transmission Control Module (TCM) Reset

  1. Disconnect the vehicle battery for about 10 minutes to reset the TCM.
  2. Reconnect the battery and take the vehicle for a test drive to see if the shifting has improved.

Step 6: Professional Assistance

  • If the problem persists, it may indicate a more serious issue such as internal transmission failure. In this case, consult a professional mechanic or transmission specialist.
Conclusion

Following these steps should help diagnose and potentially resolve the shifting issues you are experiencing in your 2020 Toyota Highlander. If after all diagnostics and repairs the problem continues, it may be necessary to have the transmission assessed by a qualified technician.