Recall 17V624 affects 21 2015-2016 Trans Tech Bus school buses with inadequately padded D-ring mounting studs. Free repair at a franchised Trans Tech Bus dealer.
Trans Tech Bus is recalling 21 2015-2016 ST Aero, Sst Flr, and Student Safety Transport school buses because certain CE White QS11 convertible seats lack enough padding over the integral D-ring mounting stud. In a rear-end collision, an occupant's head can contact that stud and increase injury risk; Trans Tech Bus dealers will complete the repair free of charge.
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What's wrong?
The CE White QS11 Series convertible school bus seat in affected 2015-2016 Trans Tech Bus ST Aero, Sst Flr, and Student Safety Transport buses is the passenger seat assembly. Its job is to hold the occupant in position and keep hard mounting hardware separated from the seated passenger by padding.
On these buses, the integral D-ring mounting studs were built with inadequate padding between the occupant and the stud. A D-ring mounting stud is the metal anchor point tied into the seat structure. With too little padding, the person sitting in the seat has less cushion between their body and that hard mounting point.
There is no warning sign before failure. The seat does not give an audible or visual alert, and the affected QS11 seat models are treated as defective until the added axle guard and foam block repair is completed.
Who's affected?
ST Aero, Sst Flr, and Student Safety Transport buses share the same seat-assembly scope across 2015-2016.
| 2016 Trans Tech Bus ST Aero | seat assembly |
|---|---|
| 2016 Trans Tech Bus Sst Flr | seat assembly |
| 2015 Trans Tech Bus Sst Flr | seat assembly |
| 2015 Trans Tech Bus Student Safety Transport | seat assembly |
| 2016 Trans Tech Bus Student Safety Transport | seat assembly |
| 2015 Trans Tech Bus ST Aero | seat assembly |
| Units affected | 21 |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific bus is included.
What's the safety risk?
In a rear end collision, an occupant's head can contact the D-ring mounting stud, increasing the risk of injury. There is no audible or visual warning before the problem matters in a crash, so confirm the VIN and schedule the padding repair. Repair is free at any franchised Trans Tech Bus dealer.
What should I do?
- Check your VIN to confirm your 2015-2016 Trans Tech Bus ST Aero, Sst Flr, or Student Safety Transport is included in this recall.
- Contact a franchised Trans Tech Bus dealer to schedule the free seat-padding repair.
- Bring the recall notice if Trans Tech Bus has mailed one. If not, reference recall number 17V624 and Trans Tech recall 17e045 when you call.
- Ask the dealer to add the padding between riders and the D-ring mounting studs in the affected CE White QS11 Series convertible seats.
- Limit passenger use until the seat-padding repair is complete, especially for seating positions covered by this recall.
What happens at the repair
At the dealer, a Trans Tech Bus technician adds the proper padding between the occupant and the D-ring mounting stud on the affected CE White QS11 convertible school bus seats. The padding work, parts, and labor are free under recall 17V624. Trans Tech Bus has a general reimbursement plan on file for this campaign. If you already paid for this seat-padding repair before the recall work, ask customer service how to submit repair documentation under that plan.
| Reimbursement | Reimbursement available |
|---|
Timeline
| October 4, 2017 | NHTSA published the recall |
|---|---|
| October 27, 2017 | Dealer notification began |
| October 27, 2017 | Interim owner notification (was planned for this date) |
| October 30, 2017 | Dealer notification ended |
| November 15, 2017 | Owner notification mailed |
Frequently asked questions
What is recall 17V624?
Recall 17V624 covers 21 2015-2016 Trans Tech Bus ST Aero, Sst Flr, and Student Safety Transport school buses with certain CE White QS11 Series convertible seats. The D-ring mounting studs lack enough padding, and dealers will add the proper padding for free.
What should I do if my 2015-2016 Trans Tech Bus ST Aero, Sst Flr, or Student Safety Transport is on this recall?
Check your VIN to confirm your specific bus is included in recall 17V624. If it is, contact a Trans Tech Bus dealer to schedule the seat-padding repair. Reference recall number 17V624 and Trans Tech Bus recall number 17e045 when you call.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and the recall remedy says dealers will add the proper padding free of charge. You can also call Trans Tech Bus customer service at 1-845-988-0419.
What is the safety risk in recall 17V624?
In a rear-end collision, a seat occupant's head can contact the D-ring mounting stud, increasing injury risk. The repair adds the proper padding between the occupant and the stud, and the dealer performs that repair for free.
When did the Trans Tech Bus recall 17V624 repair start?
The recall repair began on November 15, 2017. If your bus is included, the dealer adds the required padding to the affected CE White QS11 Series convertible school bus seats at no cost.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/17V624000 |
|---|---|
| Trans Tech Bus customer service | 1-845-988-0419 |
| NHTSA recall # | 17V624 |
| NHTSA recall # (full) | 17V624000 |
Source documents
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 25, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →