2011–2018 Trans Tech SST, 2011–2018 Trans Tech ST Aero Recall: Foam in the knee impact area of the lower seat back may not absorb enough…
NHTSA campaign 18V719000 · Seats · filed Oct 12, 2018 · verified Jul 30, 2026
The defect
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."
The risk
If the seat foam does not absorb enough impact energy, it can increase the risk of injury in the event of a crash.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Transportation Collaborative will notify owners, and dealers will install a styrene strip for additional padding, free of charge. The recall began November 16, 2018. Owners may contact Transportation Collaborative customer service at 1-845-988-0419. Transportation Collaborative's number for this recall is 18E-056.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Affected vehicles
Related recalls
More Trans Tech SST recalls
- 2018–2021 Trans Tech CST and 3 other models — In the event of a rollover, the emergency exit windows may…
- 2020 Trans Tech Roadstar and 2 other models — Specific models are AC139SSSA409,AC139SSSP500…
- 2019–2020 Trans Tech CST and 1 other model — Due to a manufacturing issue, the roof hatch external…
- 2012–2017 Trans Tech CST and 4 other models — These air conditioning systems use a 30AMP in-line fuse…
- 2011–2012 Trans Tech SST — TRANSPORTATION COLLABORATIVE, INC
Other campaigns involving Trans Tech vehicles
- 2015–2017 Trans Tech CST — Wheelchair lift positioning input cam may fail while the…
- 2015 Trans Tech Bus ST Aero and 2 other models — Affected stop arms have a reflective decal that may peel…
- 2006–2011 Trans Tech Bus Roadster and 3 other models — Affected lifts are equipped with folding link arms that may…
Source: NHTSA recall database, campaign 18V719000 (manufacturer number 18E-056). Data last verified Jul 30, 2026.