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how to fix the power mirrors not working on Toyota Highlander Third Generation (2014-2019) - Toyota Highlander
Home/Cars/Toyota/Highlander/Third Generation (2014-2019)/how to fix the power mirrors not working on Toyota Highlander Third Generation (2014-2019)

how to fix the power mirrors not working on Toyota Highlander Third Generation (2014-2019)

Toyota Highlander Third Generation (2014-2019)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
487 words

Problem Statement

Learn how to diagnose and fix power mirrors not working on Toyota Highlander (2014-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component
Electrical
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect battery before working on electrical systems to avoid shorts.

Symptoms

  • •Power mirror switch does not respond when pressed
  • •No sound or movement from the mirrors
  • •Other electrical components (e.g., windows, locks) may also be unresponsive
  • •Warning lights illuminated on the dashboard
  • •Fuses may be blown or damaged

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

  • •Screwdriver set
  • •Multimeter
  • •OBD-II scanner
  • •Pliers
  • •Torque wrench

Parts Required

  • •Power mirror switch (if faulty)
  • •Mirror motor (if faulty)
  • •Fuses (if blown)

Additional Information

Affected Component
Electrical
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
3 items

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Solution
1. Preparation
  • Gather tools and parts.
  • Disconnect the vehicle battery to prevent any electrical shorts.

Tools Required:

  • Screwdriver set
  • Multimeter
  • OBD-II scanner
  • Pliers
  • Torque wrench
2. Inspect and Test the Power Mirror Switch
  • Remove the door panel using the screwdriver and pliers.
  • Disconnect the power mirror switch connector from the door harness.
  • Use a multimeter to test the switch for continuity when pressed.
  • If the switch is faulty, replace it with a new switch.
3. Check the Fuses
  • Locate the fuse box (usually under the dashboard or in the engine compartment).
  • Identify the fuse for the power mirrors (refer to the owner's manual).
  • Remove the fuse and inspect it visually; replace it if blown with the same amperage rating.
4. Test the Mirror Motor
  • Gain access to the mirror motor by removing the outer casing of the mirror assembly.
  • Disconnect the motor wiring harness.
  • Use a multimeter to check the motor for continuity; if no continuity is found, replace the mirror motor.
5. Inspect Wiring and Connections
  • Examine the wire harness for any frayed or damaged wires.
  • Ensure connections are secure and free of corrosion.
  • Repair or replace any damaged wiring as needed.