One problem related to automatic transmission cooler 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.
Transmission cooling lines are leaking where rubber hose is crimped onto metal hose, gm part #25999419. Dealer is aware of issue, and states it is very common, but would not replace under warranty. Vehicle is less than 3 years old but has 47,xxx miles on it and the warranty is only 3 years / 36,000 miles. If the line busts, it could cause the transmission to stop shifting and would be unsafe as automatic transmission fluid would leak everywhere.