I have a 2009 F150 SuperCrew, on the dash I am getting a left rear door is ajar message, also I can not roll down the left rear door window using the switch on the door, I can however roll down the window from the switch on the driver door that controls the left rear door window. Any ideas where to start looking?

 

I am having same issue.

When the driver door ajar alarm comes on, none of the windows are working and also locks will not operate from driver side. Starting yesterday my door ajar alarm came on and has not gone off since. Last night I was able to get the door ajar light off briefly after I closed the door repeatedly. That was last time door ajar switch worked. Today I sprayed lubricant into the door latch mechanism, no effect.

Anyone know the answer?

Andy Horti