Two problems related to abs brake fail have been reported for the 2001 GMC Sierra. The most recently reported issues are listed below.
While parking on an icy pavement, the abs failed and caused the vehicle to hit and roll over the concrete parking divider. Vehicle was taken to the dealer. The dealer cleaned the corrosion off both front wheel sensors. The consumer stated that his brakes failed 3 times under 5mph. The consumer stated that the vehicle also has engine trouble and has had trouble since purchase.
The consumer experienced an intermittent problem with extended stopping distances when braking at any speed. The vehicle was taken to a repair shop. The mechanic cleaned the abs sensors and both front hubs. The abs system failed completly when the consumer backed the vehicle up.