Using this juice tuner with the CTS3 monitor is a breeze. First, connect it to your truck using the HDMI - style plug. Once connected, you can start using the one - touch menu to navigate through the settings. You can choose different power levels according to your driving needs, like using a lower level for daily driving and a higher one for more performance. Remember, if you want to use Level 6, you'll need to do a hot unlock. Also, make sure your engine is warm before using high - power settings to protect your engine. For maintenance, keep the device clean and away from moisture. Since it's internet - updateable, check for updates regularly to get the best performance.