A system and method for preventing unauthorized modification to engine control software or an engine control system of for example, a refrigerated transport application is provided. Particularly, the embodiments described herein prevent unauthorized parties from inadvertently or intentionally making changes to the engine control software used for controlling the engine or the engine control system that could, for example, potentially bypass emission strategies implemented in the refrigerated transport application. Accordingly, emission strategies such as, for example, EPA Tier IV not-to-exceed (NTE) regulations can be maintained.

A vehicle is disclosed which includes a controller having at least one of a vehicle security module and a playback module. The vehicle security module may operate in a secure once mode of operation or in a secure all mode of operation. The playback module records ride information associated with the vehicle. The ride information may be provided to an external device.