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An en-route inspection is a critical part of maintaining vehicle safety during a trip, and it should encompass various checks to ensure that the vehicle is operating correctly and safely. Including all the cargo doors in this inspection is essential to confirm that they are secure and that cargo is not shifting, which can impact vehicle stability. Additionally, monitoring tire temperatures is vital because excessive heat in tires can indicate issues such as under-inflation or overload, both of which can lead to tire blowouts or failures.

By conducting checks on both cargo doors and tire temperatures during en-route inspections, drivers can help prevent accidents and maintain the integrity of their load, ensuring a safer journey. This comprehensive approach to safety checks supports the overall health of the vehicle and compliance with regulatory requirements for commercial driving.