I bought my 04 Armada SE Off Road Edition used and love it! I've had it since October and recently ran into two problems:
1. Back Up Sensor Switch: it was working fine and all of a sudden after some snow and cold weather, my backup sensor went into the "OFF" mode and I can't get it to turn back on! I've checked the fuses, pulled the switch and unplugged it and it won't reset or turn on.
2. Rear Windshield Wiper: AGAIN, worked one day and the next nothing, it went from working fine to not working at all, anyone have this issue, if so did you come across any "home remedies"? I have not yet had a chance to really check either one, however i did check the fuses for the backup sensor, all fuses were good!

Welcome!!!! Hopefully you'll get an answer soon.

Check the wires under rear bumper make sure they (sensors) plugged in..Good Luck

Welcome to CA Armada_Tony!

Tony, Just wondering if you have solve your rear wiper issue. Mine started acting up. When ever I start the Armada, the rear wiper will turn on automatically even if the switch is off. And when it stops, it does not sit and its proper place anymore.