Window Glass may Detach from Frame/FMVSS 217

Affected vehicles (2)

Component / system

Defect

Nova Bus (US) Inc. (Nova Bus) is recalling certain 2025 LFS and 2024 LFS Artic transit buses. Inadequate adhesion around the window frame may cause the glass to detach. 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 / consequence

The glass can fall out of the frame, increasing the risk of ejection and injury during a crash. Detached window glass can also become a road hazard for other vehicles, increasing the risk of a crash.

Remedy

Nova Bus will inspect and replace the glass as necessary, free of charge. Interim letters notifying owners of the safety risk were mailed May 29, 2026. Owners will receive another notice once remedy becomes available. Owners may contact Nova Bus customer service at 1-450-472-6410. Nova Bus' number for this recall is CR5877. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning May 30, 2026.

Chronology of events

1. Sep 11, 2025

   2025-09-11: A new adhesion issue is detected by Nova Bus Quality team prior to bus delivery. Additional inspection is performed on all flush windows prior to bus deliveries.

2. Oct 30, 2025

   2025-10-30: Nova Bus Safety Office is notified of the issue, and a safety investigation is launched.

3. Nov 14, 2025

   2025-11-14: Defective parts are sent to Ricon for failure analysis. Nova Bus Service team is informed of the potential issue and asked to validate that vehicles delivered are not impacted.

4. Dec 4, 2025

   2025-12-04: Ricon visits Nova Bus plant to analyze the issue.

5. Dec 9, 2025

   2025-12-09: Nova Bus Quality team visits Ricon manufacturing plant to support root cause analysis.

6. Mar 11, 2026

   2026-03-11: Nova Bus is informed of 9 defective windows found in service by a single client.

7. Mar 15, 2026

   2026-03-15: A field inspection finds eight additional windows with adhesion issues.

8. Mar 19, 2026

   2026-03-19: Product Safety Evaluation Committee evaluates and recommends issue to be escalated to Product Safety Committee.

9. Mar 24, 2026

   2026-03-24: Product Safety Committee determination of product defect. 2026-3-31: Nova Bus files 573 with NHTSA and advise that a voluntary recall will be released to address the safety-related defect. There have been 0 warranty claims, 0 accidents or 0 injuries reported with this issue.

Notification schedule

Dealer notification

No Dealers

Owner notification

May 30, 2026 - May 30, 2026 Phased Recall

Documents (4)