Alexander Dennis Enviro500 — Structure
High risk
Apr 15, 2024
Model years: 2015, 2016, 2017, 2018, 2019, 2020
On certain transit buses, the roof hatch (emergency exit) may not be able to be opened. This could prevent occupants from using this emergency exit and/or delay occupants from esca
Alexander Dennis Enviro500 — Fuel System
High risk
May 13, 2021
Model years: 2017, 2018, 2019, 2020, 2021
Issue: On certain buses, the fuel rail assembly could develop a leak. Note: This recall only affects buses equipped with a Cummins L9 or ISX12 diesel engine. Safety Risk: A fuel le
Alexander Dennis Enviro500 — Brakes
High risk
Jun 3, 2016
Model years: 2014, 2015
On certain buses equipped with Wabco Tristop park/spring brake actuators at time of assembly, or during subsequent servicing, the actuators used may have been incorrectly assembled