S smc333 Active member Feb 2, 2012 40 0 0 Apr 1, 2018 #1 Never did this before but it will do it in the middle of a conversation and they'll still be on the phone. Anyone else having this problem?
Never did this before but it will do it in the middle of a conversation and they'll still be on the phone. Anyone else having this problem?
Rukbat Retired Moderator Feb 12, 2012 44,533 44 48 Apr 1, 2018 #2 See if your GMC dealer has a service bulletin or update for the truck's audio system.