Radar blocked See manual

Symptoms

["The radar signals from the radar sensor are blocked and vehicles in front cannot be detected. Adaptive Cruise Control, Distance Warning, and Collision Warning with Auto Brake will not operate.", "Clean the radar surface in the grille from dirt, ice and snow.", "If heavy rain or snow is blocking the signals, no action can be taken. The radar may not work in these conditions.", "If the surface has been cleaned but the message remains, wait. It could take several minutes for the radar to sense that it is no longer blocked."]