Smart Battery Shut-Off Switch
Warning: Turning the smart battery shut-off switch to OFF does not disconnect power to all electrical components (e.g. the starter and SAM). To work on the vehicle safely, the vehicle must be decommissioned.
Important: The keyswitch should be in the off position before turning the smart battery shut-off switch on or off.
The smart battery shut-off switch is located inside the cab on the outboard side of the driver's seat.
The smart battery shut-off switch can be used to open (turn off) or close (turn on) the circuits between the low-voltage battery and the battery cable access box (BCA). Where pressing the eStop button prevents the high-voltage system from turning on, turning off the smart battery shut-off switch disables the low-voltage power that enables cab and chassis functions.
To avoid accidental activation, the smart battery shut-off switch must be pressed and held for two seconds when turning on or off.
A vehicle in daily use would have the smart battery shut-off switch turned ON. When the switch is set to ON, a red LED indicator on the switch illuminates. See Fig.. The switch has interlocks to prevent it's status from being changed while a vehicle is in operation.
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Interior Grab Handle
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Shutoff Switch
Fig. 1, Smart Battery Shutoff Switch
Turning the smart battery shut-off switch OFF minimizes the power draw on the battery, preserving battery life and the ability of the vehicle to start after being parked for a number of days.
The smart battery shutoff switch should be set to OFF if the vehicle is going to be parked for more than two days.