It started yesterday, sounds like a big rig alarm when air pressure is low. Only does it at startup and lasts about 20-30 secs. No idiot lights on & nothing in message center. I have a 2010 Ram 1500...

 

Hi Buff98,

Welcome to the forum. Sorry to hear about your concern. I couldn’t find any TSBs related to this. I recommend bringing your vehicle to an FCA dealership for a formal diagnosis. Please let me know if you would like me to assist in scheduling an appointment.