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My 2009 Silverado has been having an issue with the traction control and Stabilitrak being turned off and the warning messages as well as the proverbial "idiot" lights coming on. First occurrences seemed to be primarily on colder days and the duration was short. Recently the warnings have been coming on numerous times with a very noticeable rough idle and hard clunky shifting of the transmission. I noticed others who complained about similar problems but the answers provided seemed to vary quite a bit. Obviously, it's not something I can let go or just try to live with.... Any suggestions would be greatly appreciated.
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