ARBOC Specialty Vehicles, LLC recall 21V187

Affected vehicles (1)

Component / system

Defect

ARBOC Specialty Vehicles, LLC (ARBOC) is recalling certain 2018-2021 Spirit of Equess buses equipped with Cummins Westport Inc. B6.7N natural gas engines. The engine control module software may be calibrated incorrectly, causing the engine to not limit engine speed or torque as intended for certain safety-related functions such as vehicle braking, traction and stability control, speed control, or collision avoidance.

Risk / consequence

If safety-related functions such as vehicle braking, stability, speed, and collision avoidance do not function properly, it can increase the risk of a crash.

Remedy

ARBOC will work with the engine manufacturer, Cummins, Inc., to notify owners, and Cummins dealers will recalibrate the engine control module, free of charge. The recall began April 5, 2021. Owners may contact ARBOC customer service at 1-866-953-5555.

Chronology of events

1. Jan 27, 2021

   January 27, 2021 – Cummins Westport determined root cause and developed and released a calibration to correct the issue. January 22 – February 9, 2021 – Cummins Westport and Cummins evaluated the potential safety implications of the issue and reviewed the issue with the Cummins Product Safety Defect Board.

2. Feb 10, 2021

   February 10, 2021 – The Cummins Westport Board of Directors decided to conduct a safety campaign. To date, there have been no reports of accidents or injuries due to this condition.

Notification schedule

Dealer notification

NR - NR

Owner notification

NR - NR