Assuming you have a roof rack installed on your vehicle, there are a few ways to attach a stroller to it. The most common and safest way is to use straps that loop around the stroller frame and secure to the roof rack. There are also special brackets that can be used to attach the stroller directly to the roof rack crossbars. Whichever method you choose, be sure to follow all instructions carefully and always double check that the stroller is securely fastened before driving.