4 Wheel Lock Warning
 

I had a left front wheel bearing replace and once i left the dealership, my 4 wheel drive lock warning light came on. I took it back and the dealership said i needed all new tires (wheels had significant differences in tread height, which they clam is why the sensor was coming on). The dealer wanted a ton of money for the tires, so i went to the a local garage and had them put on all new tires.....

Heres the problem, the warning light still comes on. I disconnected the battery to see if it was clear but did not have sucess. Any suggesetions?

Thanks,
Nick