ABS light and loss of Traction control on 2003 GMC Yukon XL Denali

When driving along and hit a small bump in road my ABS light comes on and then goes off an dthen comes on at another bump, when this happens 3 times the traction control and abs light stay on until I stop and shut off switch and restart then lights go out until I hit 3 more bumps in the road.

1 answer 1 comment
Sounds like you may have a bad connection at one or more of the wheel speed sensors causing a signal failure to occur. Get a GM specialist to give it a look.
Here's a directory link for you:
http://repairpal.com/directory?address=04530&car_brand_names=GMC
another problem just happened traction control on dash comes on and loss of power only can go 15 mph up a hill. readout says traction control disabled and loos of engine power. Any ideas Thanks if you do.