I have a 2011 F-150 Supercab 4x4 and the brake warning system is starting to drive me nuts. A couple of months ago the warning light came on along with a message to check brake system. I didn't find anything wrong, even flushed the hydraulic system. all seemed OK. Now the warning came back on, the message center will reset and the warning light will reset after shutting off the truck. I can drive in city/town and the warning does not come on. But if I drive open road for about 30 miles with out using the brakes I get the warning again. I'll reset the message center and it'll clear, then about every 10 miles it chimes and shows to check brake system.
It is strange that that I can drive hundred of miles in town using the brakes and not warning but get on the open road and not using the brakes I get the warning after 30 miles.
Any one have any ideas??

 

Need more info. What motor do you have?

 

It's the 5.0.

 

I've gotten this message a couple of times on my 6.2 powered F250. On mine it has to do with the ABS, there is a TSB that my truck falls under that says to reflash the ECM to correct some glitches in the ABS module.

 

I guess that I'll be visiting my local Ford dealer to get this and a couple of transmission issues looked at.