Installing a booster car seat is a straightforward process that can be completed in just a few minutes. The first step is to read the manufacturer's instructions carefully, as there may be some specific details about your particular model. Next, use the LATCH system or the vehicle's seat belt to secure the booster in place. Once the booster is installed, adjust the straps to ensure that your child is properly secured. Finally, give the seat a shake to make sure it is firmly attached and will not move during use.