One problem related to radio/tape cd player has been reported for the 2015 GMC Sierra 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 GMC Sierra 1500 based on all problems reported for the 2015 Sierra 1500.
Roof antenna leaking after 2. 5 years the roof mount antenna for xm radio started leaking into headliner causes radio to get intermittent signal. Leak travels down driver side pillar into dash board which will cause electrical shorting and failure. This problem is due to a faulty design of the antenna. There are thousands of complaints online regarding this problem. Dealer refused to replace at there expense. Contacted gm who also refused to replace it. This was a $60,000 truck less than 3yrs old. It got my attention because I use xm radio and lost reception. There must be many more with this problem who don't even know it because they don't use xm radio. This is a serious problem having a leak traveling down into dashboard what else is affected air bags, lights, brakes etc. The design of this is awful GMC is extremely negligent not recalling on this problem.