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How can I troubleshoot the problems with the rear seat entertainment system in my 2020 Toyota Highla... - Toyota Highlander
Home/Cars/Toyota/Highlander/Fourth Generation (2020-present)/How can I troubleshoot the problems with the rear seat entertainment system in my 2020 Toyota Highla...

How can I troubleshoot the problems with the rear seat entertainment system in my 2020 Toyota Highla...

Toyota Highlander Fourth Generation (2020-present)

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

Problem Statement

Learn how to troubleshoot common issues with the rear seat entertainment system in your 2020 Toyota Highlander, including symptoms, diagnostic steps, and tools required.

Affected Component
Rear Seat Entertainment System

Symptoms

  • •The rear screen(s) are blank or not turning on.
  • •No sound coming from the rear speakers or headphones.
  • •Remote control not responding.
  • •DVDs or media files won't play.
  • •HDMI input not functioning.

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
  • •Screwdrivers (Phillips and flat-head)
  • •Trim removal tool
  • •OBD-II scanner (optional for diagnostics)
  • •Replacement fuses (if necessary)
  • •Cleaning cloth
  • •Spare batteries for remote control

Additional Information

Affected Component
Rear Seat Entertainment System
Difficulty
medium
Severity
medium
Tools Required
7 items

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Troubleshooting the Rear Seat Entertainment System in a 2020 Toyota Highlander

Tools Required
  • Multimeter
  • Screwdrivers (Phillips and flat-head)
  • Trim removal tool
  • OBD-II scanner (optional for diagnostics)
  • Replacement fuses (if necessary)
  • Cleaning cloth
  • Spare batteries for remote control
Step 1: Verify Power Supply

  1. Check the Fuse:

    • Locate the fuse box (usually under the dashboard or in the engine compartment).
    • Refer to the owner’s manual for the specific fuse related to the rear entertainment system.
    • Remove and inspect the fuse. If blown, replace it with one of the same amperage.

  2. Test the Power:

    • Use a multimeter to check for voltage at the RSE unit.
    • Remove the panel covering the RSE unit; typically, it’s located in the ceiling or the back of the front seats.
    • Disconnect the power connector and measure the voltage between the power and ground terminals.
Step 2: Check the Display and Inputs

  1. Inspect the Display:

    • Check for physical damage to the screen.
    • Ensure the screen is securely mounted and connected.
    • If the display is blank, try pressing the power button on the screen or remote.

  2. Test Inputs:

    • Insert a known-good DVD to check if the system recognizes it.
    • If using HDMI, ensure the source device is powered and the cable is securely connected.
    • Test the function of both the main control and remote control.
Step 3: Test Sound Output

  1. Verify Volume Settings:

    • Ensure the volume is turned up on the RSE unit and check the headphone volume if used.
    • Check the audio settings in the main infotainment system to ensure the RSE is not muted.

  2. Check Speaker Connections:

    • Inspect the wiring harness connected to the rear speakers.
    • Use a multimeter to check for continuity in the speaker wires.
Step 4: Remote Control Functionality

  1. Replace Batteries:

    • Open the battery compartment on the remote control and replace batteries with fresh ones.

  2. Pairing:

    • If the remote still doesn’t respond, consult the owner’s manual for pairing instructions.
Step 5: System Reset

  1. Power Cycle the System:

    • Disconnect the vehicle battery for about 10 minutes to reset the entire infotainment system, including the RSE.

  2. Check for Software Updates:

    • Use the vehicle’s main infotainment system to check for software updates that may address bugs in the RSE system.
Step 6: Consult Diagnostic Trouble Codes (DTC)
  1. Scan for Codes:
    • Use an OBD-II scanner to check for any relevant trouble codes that might indicate issues with the RSE or associated electrical systems.
Repair Instructions

If any of the diagnostic steps identify specific issues, follow these repair instructions:

Replacing a Blown Fuse
  1. Remove the blown fuse from the fuse box.
  2. Insert a new fuse of the same amperage into the slot.
  3. Test the RSE system functionality.
Repairing Loose or Damaged Connections
  1. Disconnect the power from the RSE unit.
  2. Inspect and repair any damaged wires or connectors.
  3. Reconnect everything securely and test the system.
Replacing the Remote Control
  1. If the remote control is malfunctioning and cannot be repaired, order a replacement remote from the dealership or online.
  2. Pair the new remote with the RSE system according to the owner's manual.
Professional Help

If issues persist after following these steps, it may be necessary to consult a professional technician or visit a Toyota dealership for further diagnostics and repairs.

Conclusion

By following these detailed steps, you should be able to troubleshoot and potentially resolve issues with the rear seat entertainment system in your 2020 Toyota Highlander. Always refer to the vehicle’s owner’s manual for specific details regarding fuse ratings and component locations.