Yes, as long as they remember the old password they can change it themselves using Tool #40 Change Employee ID Password.  

NOTE: This is true for data center employee IDs as well, which can be changed either via Tool #40 or via OPER Tool #5431 (same tool, different access point).   

If they do not remember what the old password was, your credit union's security officer will need to first reset the password for them using Tool #762 Reset Employee ID Password.  (This can also be done via Tool #327 CU*BASE Employee Security using the Reset PW option.)

NOTE: For a data center employee ID, the reset is done via Tool #5610 Reset Data Center Employee Password (or via Tool #5606 DC Employee Security Maintenance using the Reset PW option.)