Bright Source came to troubleshoot the HID problem with my truck and determined it is in fact that the truck has a hidden electrical problem. Time to fight SHAW GMC again on the 14th issue with this new truck, lets see .... replaced transmission as it decided to shift into 1st at a 100 kph, replaced radiator due to numerous pin holes, integrated trailer brake assembly indicates that its not functioning (sometimes even when I have no trailer attached it warns me) and gm tells me its my trailer, which functions fine on other trucks. Infotainment system doesn't read devices though USB or SD and navigation system occasionally has major highways disappear that were there before. SHAW keeps saying " no codes no problem". Skid plates left hanging on by a couple of threads after oil change. When they worked on the HIDs and they gave up I drove home and then opened hood and air box was not attached to manifold.........The list is long my friends....DON'T USE SHAW'S SERVICE OR BUY TRUCKS FROM THEM, ONCE THEY HAVE YOUR MONEY YOU DO NOT EXIST!