Also, why is car maintenance important? Vehicles require more than just oil changes.
Every vehicle is "born" with a maintenance schedule. An engineered plan for the vehicle to be maintained so that it will last. A standard car or truck with a combustion engine is likely to have at least 4 different fluids that need regular changing/flushing as well as a multitude of components that are made out of rubber. All moving parts should also be checked and generally lubricated.
As a responsible vehicle owner, you want to get the most out of your vehicle as well as be safe on the road. It's a good idea to plan for upcoming service so that when larger maintenance needs to be performed you have an idea at what mileage that should occur, and also how much it will cost.
Newer vehicles have maintenance minders. It is important to be the back-up for those since they may be reset on accident while performing other maintenance or while playing with settings in your menu.
Watch the quick 2 minute video below in order to determine the maintenance required for your personal vehicle, and how to find what is expected when car says "maintenance required."