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D R I V E R S H A N D B O O K
Maintenance
The maintenance interval for chassis components are in the Service Manual available through your Blue Bird dealer and should
be followed by your service technician. An additional maintenance item that needs to be monitored is the coolant level for the
EV drive system cooling loop. Regular maintenance consists of a visual inspection of the cooling system checking for any dam-
age or coolant leaks and the coolant level. If the level is low, coolant can be added through the reservoir cap. System capacity is
approximately 18 gallons of 50/50 water mix with coolant. The system should be filled with Dex-Cool (orange) that is “safe for
aluminum blocks” prepared in a 50/50 blend of coolant and distilled water. Do not mix different types of coolant. The system
must be drained and flushed anytime the coolant type is changed. Bleed screws are located on the radiator end caps to aid in
removing trapped air in the system.
High Voltage Service or Repair
When the bus requires service or repair to the electric drive and high voltage systems, contact your dealer. In the event of an un-
expected loss of power, unexpected driving behavior or the vehicle fails to turn on, contact your service provider for assistance.
Summary of Contents for Vision 2021
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