Why is my Toyota Highlander Fourth Generation displaying a maintenance required light?

Toyota Highlander Fourth Generation (2020-present)

Error Codes

2-3 hours

Time

medium

Difficulty

low

Severity

4 min read

655 words

Problem Statement

Learn how to diagnose and reset the maintenance required light on your Toyota Highlander Fourth Generation. Follow these steps for routine maintenance.

Affected Component

Maintenance System

Estimated Time

2-3 hours

Symptoms

•Maintenance Required Light: The dashboard displays a yellow or orange 'Maintenance Required' light.
•No Other Warning Lights: Typically, this light does not indicate a critical issue but rather signifies routine maintenance.
•Potentially Poor Fuel Efficiency: If maintenance is overdue, there may be slight decreases in fuel efficiency or performance.

Diagnostic Steps

1
Check Owner's Manual: Refer to the owner's manual for details about the maintenance schedule and the significance of the light.
2
Check Mileage: Determine if the vehicle has reached the mileage at which maintenance is due (usually every 5,000 to 10,000 miles depending on oil type and driving conditions).
3
Inspect Maintenance Records: Review any recent maintenance performed to see if any services have been missed according to the manufacturer's schedule.
4
Check for Other Dashboard Lights: Confirm if any other warning lights are illuminated that might indicate more serious issues.
5
Use an OBD-II Scanner: If available, use an OBD-II scanner to check for any stored diagnostic trouble codes (DTCs). Note that the maintenance light itself does not indicate a fault but may accompany other codes if present.

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: For reading trouble codes.
•Torque Wrench: For tightening bolts during oil change.
•Oil Filter Wrench: To remove and replace the oil filter.
•Socket Set: For various bolts in the engine compartment.
•Funnel: For pouring new oil.
•Rags or Shop Towels: To clean up spills.
•Safety Equipment: Gloves and safety glasses.

Related Faults

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Symptoms

•Maintenance Required Light: The dashboard displays a yellow or orange 'Maintenance Required' light.

•No Other Warning Lights: Typically, this light does not indicate a critical issue but rather signifies routine maintenance.

•Potentially Poor Fuel Efficiency: If maintenance is overdue, there may be slight decreases in fuel efficiency or performance.

Diagnostic Steps

1
Check Owner's Manual: Refer to the owner's manual for details about the maintenance schedule and the significance of the light.
2
Check Mileage: Determine if the vehicle has reached the mileage at which maintenance is due (usually every 5,000 to 10,000 miles depending on oil type and driving conditions).
3
Inspect Maintenance Records: Review any recent maintenance performed to see if any services have been missed according to the manufacturer's schedule.
4
Check for Other Dashboard Lights: Confirm if any other warning lights are illuminated that might indicate more serious issues.
5
Use an OBD-II Scanner: If available, use an OBD-II scanner to check for any stored diagnostic trouble codes (DTCs). Note that the maintenance light itself does not indicate a fault but may accompany other codes if present.

Solution

Problem: Maintenance Required Light on Toyota Highlander Fourth Generation

Tools Required

OBD-II Scanner: For reading trouble codes.
Torque Wrench: For tightening bolts during oil change.
Oil Filter Wrench: To remove and replace the oil filter.
Socket Set: For various bolts in the engine compartment.
Funnel: For pouring new oil.
Rags or Shop Towels: To clean up spills.
Safety Equipment: Gloves and safety glasses.

Repair Instructions

Step 1: Perform Scheduled Maintenance

Oil Change:
- Drain Old Oil:
  - Position the vehicle on a flat surface and lift it using jack stands.
  - Place an oil drain pan under the oil pan and remove the drain plug using a socket wrench.
  - Allow the old oil to completely drain.
- Replace Oil Filter:
  - Use an oil filter wrench to remove the old oil filter.
  - Apply a little new oil to the rubber gasket of the new oil filter before installation.
  - Install the new oil filter by hand, tightening it snugly.
- Add New Oil:
  - Replace the drain plug and tighten it to the manufacturer's specifications using a torque wrench.
  - Using a funnel, pour the recommended amount of new oil into the engine (check owner's manual for capacity).
- Start Engine:
  - Start the engine and let it idle for a few minutes. Check for leaks around the oil filter and drain plug.
Inspect Other Maintenance Items:
- Air Filter: Check and replace if dirty.
- Battery: Inspect battery terminals and clean if corroded.
- Tire Pressure: Check and inflate tires to the recommended pressure.
- Brake Fluid, Coolant, and Transmission Fluid: Check levels and top off as necessary.
- Wiper Blades: Inspect and replace if worn.

Step 2: Reset the Maintenance Light

Once the required maintenance has been performed:

Turn on the Ignition:
- Do not start the engine; just turn the key to the "ON" position.
Use the Multi-Information Display:
- Locate the "Menu" button on the steering wheel.
- Press the "Menu" button and navigate to the "Vehicle Settings" or "Settings" menu using the scroll wheel or arrow buttons.
Select Maintenance Reset:
- Find the option for "Maintenance Reset" or "Oil Maintenance."
- Follow the prompts to confirm the reset.
Turn Off Ignition:
- Turn off the ignition and then turn it back on to verify that the maintenance light is no longer illuminated.

Conclusion

The "Maintenance Required" light on your Toyota Highlander typically indicates that scheduled maintenance is due. Following these diagnostic steps and performing the required maintenance will help ensure that your vehicle operates smoothly and that the light is reset. If the light persists after maintenance, further diagnosis may be needed to check for underlying issues.