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why are my mirrors not adjusting in my Toyota Highlander XU70 (2020-Present) - Toyota Highlander
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why are my mirrors not adjusting in my Toyota Highlander XU70 (2020-Present)

Toyota Highlander XU70 (2020-Present)

Error Codes
1-2 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
471 words

Problem Statement

Learn how to diagnose and fix mirror adjustment issues in your 2020-Present Toyota Highlander XU70. Step-by-step guide with symptoms and solutions.

Affected Component
Electrical
Estimated Time
1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical systems to avoid shock or short circuits.

Symptoms

  • •Mirror adjustment switch unresponsive
  • •Inability to move mirrors in any direction
  • •No sound or feedback when attempting to adjust
  • •Warning lights on dashboard related to electrical systems
  • •Other electrical components may be malfunctioning (e.g., power windows)

Diagnostic Steps

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

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
  • •Multimeter
  • •Socket set
  • •Screwdrivers
  • •Trim removal tool

Parts Required

  • •Mirror adjustment switch (if faulty)
  • •Replacement fuses (if blown)

Additional Information

Affected Component
Electrical
Estimated Time
1-2 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
2 items

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Solution
1. Preparation
  • Gather tools: OBD-II scanner, multimeter, socket set, and screwdrivers.
  • Disconnect the vehicle battery to ensure safety while working on electrical components.
2. Check and Replace Fuse
  • Locate the fuse box using the owner's manual.
  • Identify the fuse related to the mirror adjustment system.
  • Remove the fuse and inspect it for damage; replace it if blown with a new fuse of the same rating.
3. Inspect and Replace Mirror Adjustment Switch
  • Remove the panel covering the mirror adjustment switch using a trim tool to avoid damage.
  • Disconnect the wiring harness from the switch.
  • Test the switch with a multimeter; if there's no continuity when pressed, replace it with a new switch.
  • Reconnect the wiring harness and reassemble the panel.
4. Inspect Electrical Connections
  • Remove the door panel (if necessary) to access the wiring harness leading to the mirrors.
  • Inspect connectors for corrosion or damage; clean with electrical contact cleaner if necessary.
  • Ensure all connections are secure and reconnect any loose wires.
5. Test Mirror Adjustment Function
  • Reconnect the vehicle battery.
  • Test the mirror adjustment switch to see if the mirrors respond.