When plugging the Triple Dog into the vehicle to adjust your power setting, the device may default to the bottom setting on the list, which is No Power. To see the other tuning options use the Up arrow key to scroll up the list. This will reveal the Tow, Performance, and Extreme options. To select your desired power level, highlight one of the options and select the Y key. At this point, you have adjusted your tuning level and are ready to unplug the device.