Using your new spoiler is a breeze. First, make sure you have all the hardware included in the package. Then, find a clean and flat surface to work on. Carefully align the spoiler with the mounting points on your vehicle's trunk. Use the provided hardware to securely attach the spoiler. Don't forget to connect the brake light wiring properly. When it comes to maintenance, keep your spoiler clean by washing it regularly with mild soap and water. Avoid using abrasive cleaners that could scratch the paint. If you notice any loose parts or damage, check the hardware and make necessary adjustments or replacements. And always be careful when driving, as the spoiler affects your vehicle's aerodynamics.