Hi I’m a new member.  2018 eco diesel Laramie 4x4. 27k.  Had for 3 months 4K miles couldn’t be happier with truck.  Only issue was with sound system . One day all sound stated to come out of front driver speaker only.  Settings in that area were ”frozen”. Not able to select sourrond sound or move icon around cab..  3 days later It had a spontaneous recovery.  Considering GDE tune in future but it runs so well now I don’t want to cause any problems.  I have a fair amount of diesel DIY experience with ‘80s Mercedes diesels.  I’m hoping that 2018 and forward doesn’t have 2014-2017 problems.  great to be here