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RECALLROADTHE CAMPAIGN RECORD

MODEL-YEAR RECALL REPORT

2020 Trans Tech Sst recalls

NHTSA's September 21, 2026 snapshot lists 3 safety recall campaigns for the 2020 Trans Tech Sst, spanning 3 component groups. A model match does not confirm that a specific VIN is included.

Official source: NHTSA recall campaign file · Snapshot September 21, 2026

Distinct campaigns3not VIN-specific
Component groups3distinct top-level categories
Latest recordSeptember 18, 2024report received
VIN resultNot checkeduse official lookup

01 / OFFICIAL CAMPAIGNS

2020 Trans Tech Sst recall campaigns

The 2020 Trans Tech Sst report contains 3 distinct NHTSA campaigns; the most recently received record is campaign 24V696000 dated September 18, 2024.
CAMPAIGN

NHTSA 24V696000

Component
STRUCTURE
Report received
September 18, 2024
Potential units
544campaign-wide
Defect and consequence

Defect: 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.".

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

Remedy

Dealers will inspect and repair the emergency exit windows as necessary, free of charge. Owner notification letters were mailed September 25, 2024. Owners may contact Trans Tech customer service at 1-845-988-2333.

Owner notification: September 25, 2024 · Filing manufacturer: Trans Tech Bus

CAMPAIGN

NHTSA 20V196000

Component
ELECTRICAL SYSTEM, SEAT BELTS
Report received
April 3, 2020
Potential units
446campaign-wide
Defect and consequence

Defect: 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.".

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

Remedy

Trans Tech will notify owners, and GM dealers will reprogram the instrument panel cluster, free of charge. The recall began May 6, 2020. Owners may contact Trans Tech customer service at 1-845-988-2333.

Owner notification: May 6, 2020 · Filing manufacturer: Trans Tech Bus

CAMPAIGN

NHTSA 19V842000

Component
STRUCTURE
Report received
November 22, 2019
Potential units
9campaign-wide
Defect and consequence

Defect: 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.".

Why it matters: 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.

Remedy

Transportation Collaborative will notify owners, and Safe Fleet dealers will replace the outer handle, free of charge. The recall began January 13, 2020. Owners may contact Transportation Collaborative customer service at 1-845-988-0419.

Owner notification: January 13, 2020 · Filing manufacturer: Transportation Collaborative, Inc.

02 / COMPONENT BREADTH

What defects are listed for the 2020 Trans Tech Sst?

The most frequent component groups in 2020 Trans Tech Sst campaign records are Structure (2), Electrical System (1), Seat Belts (1); these counts describe filed campaigns rather than observed failure rates.
Structure2
Electrical System1
Seat Belts1

03 / MODEL-YEAR CONTEXT

How the 2020 Trans Tech Sst compares across model years

RecallRoad publishes 2 model-year reports for the Trans Tech Sst, spanning 2012–2020; each year keeps its NHTSA campaign count separate.
Open the complete Trans Tech Sst model history →