| 摘要 |
PURPOSE:To acquire maintenance information surely by displaying the maintenance information of a vehicle onto a display section by the operation of an operation key when an accessory switch is turned off. CONSTITUTION:For example, a timepiece display function 7 is provided to a car radio 1 and the display device 7 is in the blank display state and in operating a changeover switch 5 in such a state, the maintenance information is displayed on the display device 7 for, e.g., 1 minute. The maintenance information representing the replacement period of engine oil, radiator liquid, tire rotation is displayed in a memory, and in operating the changeover switch 5, the maintenance information is read sequentially from the memory, and displayed in order cyclicly for, e.g., 2sec each.
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