Don't Leave Your Bus ON Without It!
The Ultimate InterlockT automatically locks both the transmission and the Spring Parking Brake.  With both the above locked, the driver can safely leave the driver's seat with the engine running.  Benefits go beyond Safety issues and include:
 
  • air conditioning or heating on the bus operates continuously     - climate controlled environment is more easily attained
  • no need to add extra batteries or heavy duty alternator to     power the wheel chair lift
  • concern for the bus re-starting at Stops is eliminated
  • need for driver's aides may be eliminated in certain     situations
  • automatic lock-up of the transmission and SPB systems
  • no more torn-off lifts - the bus can not be driven with the lift     deployed
  • reduces A/C head pressure problems

    • Californial Approved - A school district in California need only apply for an Exemption to Title 13 CCR 1226 in order to install The Ultimate Interlock on one or more of its buses.  Follow the link below and see why a California school bus driver refers to her bus as " Super Bus ".   Arizona, Indiana and Ohio Approved (Other State test ongoing).  New Mexico spec'd - The Ultimate Interlock is State spec on NM special needs buses.  Stay tuned for more State approvals.  Give us a call if you would like to be involved in a field-test for your State. 

    With the Ultimate InterlockT, the vehicle's transmission can not be put in a drive gear nor the Spring Parking Brake released until all monitored switches are in a "safe" position, i.e. a wheel chair lift stowed properly.  IT IS THE ULTIMATE INTERLOCK!  For the utmost protection, a master interlock key comes standard with the system.  With one of these included, the driver must close all doors, fasten his or her seat belt and lastly insert the interlock key in order to release the brakes and shift the transmission into a drive gear.  Power to the lift is not provided until the interlock key is removed from its holder.  Systems are also available for vehicles with hydraulic brakes.  The Ultimate Interlock exceeds the new FMVSS 403 interlock requirements.

    Attached PDF Files:
    Operators Manual - CA