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The 2013 Toyota Highlander has a "Master Warning Light" that shows a yellow triangle with an exclamation mark to indicate that the multi-information display has a message for the driver. This warning light is activated when there is a malfunction in the vehicle. While it may appear alarming, the issue could be as minor as a loose gas cap or an open door or moonroof. However, it could also signal a more serious problem like low oil pressure. Drivers should look into the Master Warning to understand the specific issue, which is only available on Highlanders with a multi-information driver's display.
Maintenance or air pressure required.