FAULTBASE
NEWSASKCars
© 2025 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
Home/Cars/Toyota/Highlander/Fourth Generation (2020-present)/What maintenance issues are commonly reported for the 2023 Toyota Highlander?

What maintenance issues are commonly reported for the 2023 Toyota Highlander?

Toyota Highlander Fourth Generation (2020-present)

Severity: mediumDifficulty: medium
4 min read
653 words

Problem Statement

Explore common maintenance issues reported for the 2023 Toyota Highlander, including symptoms, diagnostic steps, and repair instructions.

Symptoms

  • •Decreased oil level between changes
  • •Engine warning lights may illuminate
  • •Unusual engine noise (ticking or knocking)
  • •Squeaking or grinding noises when braking
  • •Brake pedal feels spongy or sinks to the floor
  • •Warning light on the dashboard
  • •Engine does not start
  • •Electrical accessories malfunction or are slow to operate
  • •Warning lights may flicker
  • •Screen freezes or is unresponsive
  • •Bluetooth connectivity issues
  • •Navigation system malfunction

Diagnostic Steps

  1. 1Check Oil Level
  2. 2Inspect for Leaks
  3. 3Oil Change History
  4. 4Visual Inspection
  5. 5Brake Fluid Level
  6. 6Test Drive
  7. 7Check Battery Voltage
  8. 8Inspect Connections
  9. 9Parasitic Draw Test
  10. 10Reboot the System
  11. 11Check Software Updates
  12. 12Inspect Connections

Solution

Common Maintenance Issues for the 2023 Toyota Highlander

The 2023 Toyota Highlander is generally a reliable vehicle, but like any model, it can encounter certain maintenance issues. Below are some of the commonly reported maintenance concerns for the Fourth Generation Highlander (2020-present), along with a brief overview of symptoms, diagnostic steps, and potential solutions.


1. Oil Consumption Issues

Tools Required
  • Oil dipstick
  • Oil drain pan
  • Socket set
  • Torque wrench

Repair Instructions

  1. Identify the Source of Consumption: If oil is missing, inspect valve seals and piston rings for wear.
  2. Top Off Oil: If low, add the appropriate oil type.
  3. Replace Oil and Filter: Change the oil and filter to ensure clean lubrication.
  4. Monitor: Check oil levels regularly after repairs to ensure the problem is resolved.

2. Brake System Concerns

Tools Required
  • Brake fluid tester
  • Torque wrench
  • Jack and jack stands
  • Brake pad gauge

Repair Instructions

  1. Replace Brake Pads: If pads are worn, replace them with new ones.
  2. Bleed the Brake System: If air is trapped, bleed the brakes to restore pedal feel.
  3. Inspect Rotors: If warped or too thin, replace the brake rotors.
  4. Add Brake Fluid: If low, top off with the recommended brake fluid.

3. Battery Drain Issues

Tools Required
  • Multimeter
  • Wrench set
  • Battery terminal cleaner

Repair Instructions

  1. Clean Battery Terminals: Remove corrosion from terminals and ensure a snug fit.
  2. Replace Battery: If the battery voltage is low or it doesn’t hold a charge, replace it.
  3. Inspect for Parasitic Draw: Identify and repair any circuits drawing excessive current while the vehicle is off.

4. Infotainment System Glitches

Tools Required
  • Laptop with software update capability
  • Torx screwdriver set
  • Trim removal tools

Repair Instructions

  1. Perform a Hard Reset: Disconnect the battery for a few minutes, then reconnect.
  2. Update Software: If available, download and install the latest updates for the infotainment system.
  3. Replace Head Unit: If issues persist, consider replacing the head unit.

Conclusion

The 2023 Toyota Highlander, while generally reliable, can encounter common maintenance issues such as oil consumption, brake system concerns, battery drain, and infotainment glitches. Regular maintenance and prompt diagnosis can help mitigate these issues and ensure the longevity of the vehicle. Always consult the owner's manual for specific maintenance schedules and specifications.

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

  • Oil dipstick
  • Oil drain pan
  • Socket set
  • Torque wrench
  • Brake fluid tester
  • Jack and jack stands
  • Brake pad gauge
  • Multimeter
  • Wrench set
  • Battery terminal cleaner
  • Laptop with software update capability
  • Torx screwdriver set
  • Trim removal tools

Additional Information

Difficulty

medium

Severity

medium

Tools

13 items

Related Faults

Discover similar issues

  1. How can I resolve performance issues in my 2022 Toyota Highlander?

    Learn how to diagnose and resolve performance issues in your 2022 Toyota Highlander with our step-by-step guide.

    Component:Engine, Fuel System, Ignition System, Air Intake System, Exhaust System
    Symptoms
    • •Reduced Engine Power
    • •Poor Fuel Economy
    • +{count} more
  2. How do I resolve a malfunctioning navigation system in my 2023 Toyota Highlander?

    Learn how to troubleshoot and repair a malfunctioning navigation system in your 2023 Toyota Highlander with our step-by-step guide.

    Component:navigation system
    Symptoms
    • •No GPS signal or 'Searching for GPS' message
    • •Navigation maps not loading or outdated
    • +{count} more
  3. How do I fix a malfunctioning infotainment system in my 2021 Toyota Highlander?

    Learn how to diagnose and fix issues with the infotainment system in your 2021 Toyota Highlander, including common symptoms and step-by-step repair in...

    Component:infotainment system
    Symptoms
    • •Blank screen or no display
    • •Unresponsive touch screen
    • +{count} more
  4. How do I troubleshoot Bluetooth connectivity issues in the 2021 Toyota Highlander?

    Learn how to troubleshoot and resolve Bluetooth connectivity issues in your 2021 Toyota Highlander with detailed steps and tips.

    Component:Bluetooth system
    Symptoms
    • •Phone Not Connecting
    • •Intermittent Connection
    • +{count} more
  5. What are the common air conditioning issues in the 2020 Toyota Highlander?

    Explore common A/C issues in the 2020 Toyota Highlander, including symptoms, diagnostic steps, tools required, and repair instructions.

    Component:A/C system
    Symptoms
    • •The air coming from the A/C vents is warm or not cold enough.
    • •A/C system runs but does not cool the cabin effectively.
    • +{count} more
  6. What are the signs of a failing alternator in the 2020 Toyota Highlander?

    Learn the signs of a failing alternator in the 2020 Toyota Highlander, diagnostic steps, and how to replace it effectively.

    Component:alternator
    Symptoms
    • •Warning light on dashboard
    • •Dimming or flickering lights
    • +{count} more

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation