I have a 2010 F150 4x4 5.4 106,969 and 4 weeks ago the hazard lights just randomly started coming on. I take the battery terminal off when I get to work and after getting home for the day. I've taken it to a retired Ford Master Tech...I've taken it to the Ford Dealer and we're all stumped. There's not rhyme or reason for it to happen. I could be driving, it could be parked for hours or it may not happen for a couple days. The last time I had it at the dealership, they had it hooked up on the computer for 2 days and it never happened. I showed up to take it home and BOOM!!!! the hazards turned on. We're really not sure where to go from here. Any thoughts? (except...Trade it, get a new one, check the blinker fluid...etc) Thanks!

 

Have you had the battery tested?

 

Ford checked the battery and said it was good.

 

Maybe you have a flaky hazard switch. Unplug the switch and leave it unplugged for a few days and see if it is still happening.