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W arning Severe Engine Overspeed
from Mack Truck Electronic V-MAC IV Vehicle Management & Control with Co-Pilot Display Operator’s Manual
The W ARNING SEVERE ENGINE OVERSPEED screen appears and alarm sounds when the driver exceeds the Severe Engine Overspeed This screen displayed until the driver decelerates below the

The W ARNING: ENGINE BRAKE OVERSPEED screen displayed and alarm sounds the driver operates the engine speed over the engine brake speed threshold. This screen displayed until the driver acknowledges the warning and alarm pressing the Enter button and correcting the situation.

The W ARNING: SEVERE ENGINE & ENGINE BRAKE OVERSPEED screen displayed and alarm sounds the driver operates above the Severe Engine and Engine Brake Overspeed
This screen displayed until the driver acknowledges the warning and alarm pressing the Enter button and correcting the situation.
Maintenance Reminder (for Future Support)
The MAINTENANCE REMINDER screen appears and alarm sounds a maintenance item, such engine oil change, becomes due. The screen shows the item needing maintenance and the message Maintenance Log.” more than one maintenance item becomes due the same time, the screen becomes scrollable that the driver can press the Down button the stalk switch see other items needing maintenance.
Press the Enter ( ↵ ↵ ↵ ) button acknowledge the reminder and return the previous screen. The MAINTENANCE REMINDER screen will appear again the next power - until the maintenance performed and the Maintenance Log reset.
The GUARDDOG MONIT Interrupt screens appear and alarm sounds a GuardDog™ related maintenance item becomes The screens display the maintenance item needing Press the Enter ( ↵ ↵ ↵ ) button acknowledge the warning and take the appropriate action correct the condition that triggered the

Low V oltage Disconnect Active
The LOW VOL T AGE DISCONNECT ACTIVE screen appears when a low voltage disconnect has been detected the V - MAC system. The driver should acknowledge this message pressing the Enter ( ↵ ↵ ↵ ) button and turn f unnecessary accessory functions that may have caused low voltage.

Inter Wheel Lock
The INTER WHEEL LOCK screen appears when the Inter Wheel lock switch has been engaged the driver The driver should acknowledge the message pressing the Enter ( ↵ ↵ ↵ ) button and turn f the Inter Wheel lock pressing the Inter Wheel lock switch when not W3036658
