Make sure the inside of your windshield is clean and dry. Secure the Express Pass anywhere in the green shaded area shown above with the slider pointing down.
To ensure that you aren't pulled over, mount your Express Pass so that it is visible from behind.
*Mount your pass below the AS-1 line, if your vehicle has one.
** If your windshield has metallic tinting, it will affect the operation of the pass. Check your vehicle's owner's manual to determine the best location to mount your pass.