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What are the common reasons for the 2020 Toyota Highlander to make unusual noises while driving? - Toyota Highlander
Home/Cars/Toyota/Highlander/Fourth Generation (2020-present)/What are the common reasons for the 2020 Toyota Highlander to make unusual noises while driving?

What are the common reasons for the 2020 Toyota Highlander to make unusual noises while driving?

Toyota Highlander Fourth Generation (2020-present)

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

Problem Statement

Learn about the common causes of unusual noises in the 2020 Toyota Highlander, including symptoms, diagnostic steps, and repair instructions.

Affected Component
brakes, suspension, engine, wheel bearings

Symptoms

  • •Grinding, squeaking, or squealing noises when applying brakes
  • •Pulsation or vibration through the brake pedal
  • •Clunking, rattling, or knocking sounds when driving over bumps or uneven surfaces
  • •Ticking, knocking, or rattling noise from the engine bay
  • •A humming or grinding noise that increases with speed

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

  • •Jack and jack stands
  • •Lug wrench
  • •Torque wrench
  • •Brake pad replacement kit
  • •Wrench set
  • •Mechanic’s stethoscope
  • •Oil pressure gauge
  • •Wheel bearing puller set

Additional Information

Affected Component
brakes, suspension, engine, wheel bearings
Difficulty
medium
Severity
medium
Tools Required
8 items

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Back to Generation

Common Reasons for Unusual Noises in a 2020 Toyota Highlander

The 2020 Toyota Highlander, part of the fourth generation (XU70), can produce various unusual noises while driving, indicating potential issues that need to be diagnosed and repaired. Below are common causes, symptoms, diagnostic steps, tools required, and repair instructions for each.

1. Brake Noises
Tools Required:
  • Jack and jack stands
  • Lug wrench
  • Torque wrench
  • Brake pad replacement kit (if necessary)
Repair Instructions:
  1. Lift the Vehicle: Use the jack to lift the Highlander and secure it with jack stands.
  2. Remove Wheel: Use the lug wrench to take off the wheel.
  3. Inspect Brake Pads and Rotors:
    • Check the thickness of the brake pads; replace if below the manufacturer’s minimum thickness.
    • Inspect the rotors for scoring or warping.
  4. Replace Brake Pads:
    • Remove the caliper bolts and slide off the caliper.
    • Replace the pads and reassemble the caliper.
  5. Reassemble: Reinstall the wheel and lower the vehicle.
2. Suspension Noises
Tools Required:
  • Jack and jack stands
  • Wrench set
  • Torque wrench
Repair Instructions:
  1. Lift the Vehicle: Secure with jack stands.
  2. Inspect Components:
    • Check struts and shocks for leaks or damage.
    • Look at bushings for signs of wear.
  3. Replace Worn Parts:
    • Remove the affected components (e.g., shocks or control arms).
    • Install new parts, ensuring they are torqued to manufacturer specifications.
  4. Lower the Vehicle: Reassemble and lower the vehicle.
3. Engine Noises
Tools Required:
  • Mechanic’s stethoscope
  • Oil pressure gauge
  • Torque wrench
Repair Instructions:
  1. Check Oil Level:
    • Remove the dipstick, clean it, and reinsert to check the level.
    • Top off with appropriate oil if low.
  2. Inspect Timing Chain/Belt:
    • If the noise persists, check the timing components for wear.
    • Replace timing chain/belt if necessary, following the specific service manual for your vehicle.
4. Wheel Bearing Noises
Tools Required:
  • Jack and jack stands
  • Torque wrench
  • Wheel bearing puller set
Repair Instructions:
  1. Lift the Vehicle: Secure it with jack stands.
  2. Check Wheel Bearings:
    • Remove the wheel and inspect the hub assembly.
    • Spin the rotor and listen for any grinding sounds.
  3. Replace the Wheel Bearing:
    • Remove the hub assembly and use a bearing puller to remove the old bearing.
    • Install the new bearing and reassemble the hub.
  4. Reinstall Wheel: Torque the lug nuts to specification and lower the vehicle.
Conclusion

Unusual noises from your 2020 Toyota Highlander can stem from various causes, including brakes, suspension, engine components, and wheel bearings. By following the diagnostic steps and repair instructions outlined above, you can identify and address these issues effectively. Always consult the vehicle’s service manual for specific measurements, torque specs, and procedures related to your particular model. If you are not comfortable performing these repairs, it is advisable to seek assistance from a qualified automotive technician.