Toyota Highlander Owners Manual: Basic operations

Audio system

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Audio system types

Entune audio   entune audio plus/entune premium audio with navigation Owners of models equipped with a navigation system should refer to the "navigation and multimedia system owne ...

More about Toyota Highlander:

If a warning light turns on or a warning buzzer sounds
Calmly perform the following actions if any of the warning lights comes on or flashes. If a light comes on or flashes, but then goes off, this does not necessarily indicate a malfunction in the system. However, if this continues to occur, have the vehicle inspected by your toyota dealer. Warnin ...