Why are vehicle Air Filters/AC Filters and brakes not covered under warranty.

Serviceable items are not included under warranty coverage because they are intended to be replaced regularly as part of the vehicle's maintenance due to normal wear and tear from everyday use. These components are designed to endure the rigors of daily driving, but as they are subjected to friction, pressure, and environmental conditions, they inevitably degrade over time. Common examples of serviceable items include Air filters, AC filters and brakes.
While these components play a vital role in maintaining the safety and performance of your vehicle, their natural wear and tear means they are not protected by the manufacturer's warranty. It is important for vehicle owners to be proactive about regular maintenance checks and timely replacements of these items to ensure continued safe operation and to prevent further damage to the vehicle.