Toyota Highlander (2021) Owner Manual

The recommended maintenance schedule for the 2021 Toyota Highlander includes regular oil changes every 5,000 to 10,000 miles, depending on the type of oil used. Tire rotation should occur every 5,000 miles, and the air filter should be inspected every 15,000 miles. Brake fluid should be replaced every 3 years, and the cabin air filter should be replaced every 15,000 miles or as needed. It's essential to refer to the owner’s manual for specific intervals and additional maintenance tasks.

To reset the maintenance light on your 2021 Toyota Highlander, turn the ignition to the 'ON' position without starting the engine. Press the 'Menu' button on the steering wheel, scroll to 'Settings', and select 'Maintenance'. From there, choose 'Reset' and confirm the action. This will clear the maintenance light. Ensure that all maintenance tasks have been completed before resetting the light.

If your 2021 Toyota Highlander won't start, first check if the battery is dead by turning on the headlights. If they don't light up, the battery may need to be charged or replaced. Ensure the gear shift is in 'Park' or 'Neutral' and that the brake pedal is fully pressed. If the vehicle still won't start, listen for a clicking sound; this may indicate a faulty starter. If these steps do not resolve the issue, consult a professional mechanic for further diagnosis.

To troubleshoot issues with the infotainment system in your 2021 Toyota Highlander, start by rebooting the system. Press and hold the power button until the screen goes black, then release it to restart. If issues persist, ensure that your smartphone is properly connected via Bluetooth or USB, depending on how you are trying to use it. Check if there are any software updates available for the system through the Toyota website or app. If problems continue, consider visiting your local Toyota dealership for a system check.

The 2021 Toyota Highlander is designed to run on regular unleaded gasoline with an octane rating of 87 or higher. Using premium fuel is not necessary and will not significantly improve performance or fuel efficiency. Always ensure that the fuel is compliant with the local regulations and that you avoid using fuels that contain more than 10% ethanol unless specified otherwise in the owner’s manual.