JJ Keller Entry Level Driver Training CDL Practice Test 2025 – Comprehensive All-in-One Guide to Exam Success!

Detecting maintenance and repair needs is essential for keeping a vehicle in good working order while traveling. This proactive approach allows the driver to identify potential issues before they lead to more significant problems or breakdowns. Regularly checking for warning signs, such as unusual noises, warning lights on the dashboard, or changes in vehicle performance, helps ensure that any necessary repairs can be addressed promptly.

In contrast, changing oil every 500 miles, while an important maintenance task, does not directly relate to ongoing vehicle monitoring during travel. Limiting driving to daylight hours is more of a safety measure rather than a maintenance practice, as it doesn't contribute to the vehicle's operational condition. Additionally, performing maintenance only at service stations can be limiting; drivers should also be able to identify and address some basic maintenance needs themselves before reaching a service station.