One problem related to automatic transmission has been reported for the 2010 Chevrolet Silverado 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2010 Chevrolet Silverado 1500 based on all problems reported for the 2010 Silverado 1500.
Safety issue with 2010 GMC/Chevrolet 1500 pickups with 6 speed automatic transmission. The issue involves driving one of these vehicles with the tow/haul mode turned on. If going down a hill at 55 to 65 miles per hour, actually any speed, by laying your foot on the brake pedal hard just hard enough to turn on brake lights these vehicles will begin downshifting. The one I own will go from 5th gear to 2nd gear in less than 10 seconds. At this point the tachometer will peg to the max and the rear tires will begin to slide. I have had this at the dealer twice and have been told this is normal and they recommend I don't use the tow/haul mode. My vehicle hit a small bump in the road once while this was happening and actually was completely sideways at 50 mph.