The major dealer groups have not put enough pressure on the OEMs to partner in creating the many more training slots needed. there are internships available, but the training is basic and then technicians are stuck waiting years for an opening in additional training.
there is also a difference in service advisors. they have a unique challenge in translating customer concerns to techs and working with the shop employee to assign a qualified tech to complete the diagnosis and repair, all in a reasonable amount of time. currently repair wait times have only increased and I don’t see this changing anytime soon given the lack of investment in infrastructure and training.
Next time you’re at your dealership, ask a technician about the realities of the training opportunities the store offers. How often are training slots available? If they want your business, they have a responsibility to you to ensure that their technicians are properly trained and that service wait times are reasonable.
I don’t know if one OEM does a better job at this than others.