Instrument Panel; Tell-Tales - Mack Granite GU Series Operator's Handbook Manual

56 INSTRUMENTS AND CONTROLS

INSTRUMENT PANEL

Tell-Tales

A tell-tale is a display that indicates the actuation of a device, a correct or
defective condition, or a failure to function.
The operator should become familiar with these symbols in order to recognize
and react (if necessary) to the indicated condition. Tell-tale symbols are shown
in the instrument panel illustrations on the following pages.
Colors
To promote visual recognition internationally, specific colors for tell-tales
have been established. Unless governmental regulations (in the area where
the vehicle is to be used) or engineering directives specify otherwise, the
standard colors are:
• Blue – high-beam headlights/engine maintenance
• Flashing Green – turn signals
• Flashing Red – hazard condition involving the safety of personnel
• Steady Green – system in
• Steady Red – warning, immediate action required
• Amber – early warning, such as low fuel or Anti-Lock Brake System (ABS)
malfunction