If you check out my thread in the Pictures section, you'll see I just bought a Silverado RCLB that my son will be driving primarily. Before I'm willing to turn it over to him though, there are a few issues that I'd like to get sorted out first. 1) Three times today, all at low speeds, the truck has activated the ABS at inappropriate times, nearly causing me to hit something. Now, when I test drove the truck yesterday, I noticed a growling/rumbling noise that increased in volume and intensity as I accelerated, but I attributed it to the knobby, off road oriented tires on the truck. At this point, I believe it needs at least a left front wheel hub and bearing assembly, and maybe the right as well. That said, I know the ABS wheel speed sensor is integrated into the hub and bearing assembly. Could it be that the bearing is bad enough to send a faulty reading to the ABS module and activate the ABS when coming to a stop from slow speeds? 2) Service 4WD light on the Message Center - The truck goes into 4Hi, and will go into Auto 4Hi, but once there, doesn't want to switch back to 2Hi. I feel like I read somewhere this could be a bad switch on the dash, and replacing it will remedy the Message Center warning, but I'm skeptical. Mostly because I had to replace a front axle disconnect, TCCM, and both front hubs on my Trailblazer to remedy a similar issue. 3) Windshield Wipers only work on Hi. No intermittent wipe, no washer spray, just ON. As I understand, this issue is likely the Windshield Wiper Module, or some such... I spotted a $20 Dorman part on Rock Auto, but looking under the hood today, I didn't see anything that looked like the part photo online. Where is this thing located? If you've got a couple photos for reference, it'd be appreciated. If I can get these things sorted out to my satisfaction, I'll let the boy take over driving the truck, but until then... I'm not willing to take the chance. Here you go, GMTN, the driving fate of a 16 year old boy in Ohio is your hands, help me out!