NOTIFICATION METHOD, NOTIFICATION SYSTEM, AND VEHICLE

A notification method for giving a notification to a driver sitting in a driver's seat of a vehicle includes: setting a target level of strength of the notification; when the target level is a first level, giving a visual notification from a visual device of the vehicle without giving a sound notification from a speaker of the vehicle; and when the target level is higher than the first level, giving a strong visual notification from the visual device or the sound notification from the speaker. The strong visual notification is stronger than the visual notification that is given when the target level is the first level.