One problem related to brake antilock control unit/module has been reported for the 2004 Chevrolet Silverado 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Chevrolet Silverado 1500 based on all problems reported for the 2004 Silverado 1500.
10/28/08 I woke @ 6 a. M. To let the dogs out. And I heard this loud noise coming from the garage. Come to find out it was the abs control module, just running away. No keys in the truck. Just running. So I unplugged it and plugged it back in. It stopped the noise but I don't trust it now.