Though I'm new to this one, I've been on other F-150 forums.

I have a 2009 SCrew, 47K miles.

The TPMS is giving a sensor fault after about 15-20 of driving. Is there any way I can determine which sensor is going out? I don't want to have to replace all of them at once.

All comments greatly appreciated!

 

I don't think you can without a reset tool. I would just try the dealer. I believe it will still be under warranty as a safety feature.