I noticed today that the reverse lights were on all the time on my 2007 Suburban. This has happened before but locking the car and unlocking the car usually made the problem go away. As a precaution, I disabled the exit lighting feature and that seemed to work for several months, until today. I tried everything I could think of to turn them off, including disconnecting the battery. But as soon as I reconnected it the lights came back on. I even tried removing the trailer backup fuse (fuse 10). I finally had to remove the fuse for the vehicle backup lights (Fuse 15). I did notice one other strange behavior from the vehicle this morning. When we pulled out of the driveway, the windshield washers would fire off about every ten seconds. I finally had to stop the vehicle and restart it to make that stop. The vehicle has some other strange symptoms periodically, but this is the latest. Any suggestions on where to look? I didn't see any relays in the fuse block relating to the reverse lights.