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Q: 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.
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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.
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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.
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