Auto Mode intelligently adjusts the detector’s sensitivity for X and K Band based on your current driving speed. The faster you’re going, the more sensitive it becomes, giving you better detection range exactly when you need it most.
Highway Mode runs X and K Band at full sensitivity all the time, no matter how fast (or slow) you’re driving. This can lead to more false alerts, especially in town or at low speeds, but is ideal for open highway driving.
While Auto Mode gets very sensitive as your speed increases, it does not reach the absolute maximum sensitivity that Highway Mode provides.
The biggest advantage of Auto Mode is convenience and fewer headaches: it automatically lowers sensitivity at low speeds (when you’re usually not speeding anyway), which dramatically cuts down on annoying false alerts. Most drivers find this the ideal everyday setting because it gives you a smart balance of protection and quiet operation.
Depending on your detector model, you may have several types of Auto Mode when using the SEN button to set sensitivity/range.
Auto – Reduces X and K band sensitivity based on the speed of the vehicle.
AutoNoX – or "Auto No X" is the same as Auto, but disables X band detection.
AutoLoK – or "Auto Low K" is the same as Auto, but with lowered K band sensitivity at all times regardless of speed.
Choose Highway Mode when you want every last bit of range possible and for an edge in any instant on radar situation.
Note: Ka Band radar is not affected by Auto Mode, and is always at maximum sensitivity regardless of this setting; therefore Auto and Highway mode for Ka Band are functionality identical.