I bought a new Escort S2 Solo last summer. It worked fine on a couple of long trips in July and I put it away until November. Then, on a 250 mile trip it began to have a terrible problem with a false X band warning. Immediately after powering up, the X band warning would come on and it would never go off. Turning it off and back on, even taking the batteries out and putting them in again, did not help. No matter what, the false warning came on. I sent it back to Excort twice and they replaced the antenna, recalibrated, etc. but when I got it back, same problem. The 3rd time they sent me a new unit, but I am having the same problem with it. I have discovered that there is something in my vehicle, a 2004 Suburban, that is causing this false alarm. If I take the Solo out of the car and walk about 10 feet away, the warning goes off. If I put the detector in another car, it doesn't give the false warnings. I have tried to find the source of the problem, but no luck so far. The warning comes on even when the car is in the driveway. Even when turned off, with the key out of the ignition. I have tried turing my cell phone off, but that doesn't help. Escort customer service does not have any more suggestions. They say that the OnStar system is not the problem. They claim their units should not be giving false alarms, but cannot tell me what else to look for. I cannot think of anything I have done to this car since last summer that would now interfere with the radar and give a false X band signal. Has anyone run into this problem before or have any suggestions? Thanks for any help.