have a 2010 c300, winter conditions here, driving just fine, went to start mid afternoon, and get the message "pre safe functions limited" then it cycled threw all the inoperative things...cruise control, brake, tire pressure monit, srs. anyone got any input for me ill take any and all!

 

Hello and welcome to the forum! From what I've read, it generally comes on during winter/snow conditions; all it means is to not count on the safety features until the sensors are cleaned. Apparently most people just ignore it and it resets itself.