One problem related to anti-lock brakes fail has been reported for the 2006 Chevrolet Silverado. The most recently reported issues are listed below.
2006 chevy Silverado truck front abs antilock sensors failed due to corrosion gm had a recall 08/30/2005 for same problem on 2002 models, they knew about this in 05 (when my truck was built) but only admit to 2002 models NHTSA campaign # 05v37900 - think this needs to be extended to all models they built this way.