Well, the reason the roll bar is there is to pop up in case the cars rolls over. This condition is detected by a pair of switches mounted on the rear axle. They are easy to spot if you look under there. The roll bar will pop in just a few tenths of a second if one of these switches is tripped; unlike when you use the console switch to raise or lower it slowly. If you've never experienced a roll bar emergency deployment, you will be quite surprised if it does happen ( like when going over a big bump or hitting a bad pothole.) Inspect the switches for freedom of movement and any obvious damage. If your trouble shooting leads to a suspected switch problem, you can check them with a continueity meter.

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Resistance is Futile.