I'm at my wits end with this vehicle. It's a 2006 Chevy Uplander. We live in snow country and thought an AWD van would be a good option. However, a year after buying it, the Service ABS light, Brake warning light, and AWD Disabled light came on.
So for about the past 2 weeks, we've been driving it in front wheel drive...and it is the absolute worst vehicle I've ever driven in the snow

.
I brought it in to have the ABS sensor troubleshot. The scanner was only able to read 1 wheel speed sensor. So now here is my predicament:
I am aware that the wheel speed sensor will malfunction as the wheel bearing deteriorates, but I have a hard time believing that 3 wheel bearings have gone sour (I jacked up each tire...they're all tight). Does anybody have any ideas?
Thanks in advance guys!