TRANS TECH SST

STRUCTURE:EMERGENCY:ESCAPE/EGRESS/EXIT

Trans Tech Bus (Trans Tech) is recalling certain 2018-2021 SST, CST, SSTFLR and CSTFLR school buses. In the event of a rollover, the emergency exit windows may not open. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 220, "School Bus Rollover Protection."

Risk: An emergency exit window that does not open can increase the risk of injury.

SEAT BELTS:FRONT:WARNING LIGHT/DEVICES

Trans Tech Bus (Trans Tech) is recalling certain 2020 Roadstar, ST Aero and SST buses built on 2019 Chevrolet Express cutaway chassis. The specific models are AC139SSSA409,AC139SSSP500, CC139DMSA409, CC139DMSA500, CC139DMSP500, CC159DMSA509, CC159DMSA600,EC139DBSP400, SC139DSFP500, SC139DSSA409, SC139DSSA500, SC139DSSP500, SC159DSFP600, SC159DSSA509, SC159DSSA600, SC159DSSA603, SC159DSSP600, and SC177DSSA603. The seatbelt-unfastened warning light will not illuminate for approximately five seconds after the ignition is moved to the "on" or "start" position. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection."

Risk: Without the seatbelt warning reminder, the driver may forget to fasten the seatbelt, increasing the risk of injury in the event of a crash.

STRUCTURE:EMERGENCY:ESCAPE/EGRESS/EXIT

Transportation Collaborative, Inc. (Transportation Collaborative) is recalling certain 2019-2020 TransTech CST and SST school buses equipped with Safe Fleet Prolo hatches. Due to a manufacturing issue, the roof hatch external handle may unexpectedly break under reasonable use. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 217, "Bus Emergency Exits and Window Retention and Release."

Risk: If the roof hatch external handle breaks, in the event of an emergency, the hatch cannot be easily opened from outside the vehicle, increasing the risk of injury.

SEATS

Transportation Collaborative, Inc. (Transportation Collaborative) is recalling certain 2011-2018 Transtech Bus SST, SST Flat Floor and ST Aero school buses, equipped with CE White/HSM SB11-26" and SB11-30" series, standard, unbelted, school bus seats, or SB11-30" series school bus seats with lap belts only. The foam in the knee impact area of the lower seat back may not absorb enough impact in the event of a crash. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 222, "School Bus Passenger Seating and Crash Protection."

Risk: If the seat foam does not absorb enough impact energy, it can increase the risk of injury in the event of a crash.

EQUIPMENT:APPLIANCE:AIR CONDITIONER

Transportation Collaborative, Inc. (Transportation Collaborative) is recalling certain 2012-2017 Transtech Bus ST Aero, SST, CST, Horizon, and RoadStar transit buses equipped with Bus-Air air conditioning systems. These air conditioning systems use a 30AMP in-line fuse that may short against the screw that secures the fuse holder.

Risk: If the fuse short circuits, the holder may overheat and melt, increasing the risk of a fire.