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Don't know how long you have been a Ford tech or if the Ford Star education broadcast are still done. Back in aprox 2004, I worked with the Manager of the Body/Paint Technical Center to do a live Ford Star broadcast on basic procedures for the "cosmetic" pre-delivery of new Ford vehicles. It was live and then rebroadcast twice a week for a month.
Now if you are familar with that training system, you know that you had to go into a room at your dealership and "sign on", then watch the training session, etc.
John Hughes, who was the manager of Body/Paint told me that at the end of the month, only 50 or so dealers had their new car/used car get ready people watch the training.
When the dealers service managers, etc were asked why such a low volume of attendee's, the normal response was "they know what they are doing and it's not that important, like training regarding an engine or transmission, etc".
In 1990, I worked with the engineers at Mazda to create a guide book for dealers for the subject. Not many ever followed it.
My assistant at AI, Tim Brune, now in charge of the AI Tech Center, just worked with them again to produce a simple (not an enthuisist, I have hours to do it my way sort of thing) new process manual.
You can see and read it at valugard.net under the engineer's sections, they calll it "Vehicle Storage Management. I had limited input on the manual, at the request of the Mazda Service and Training Director, old friends for 25 years, however understand why it had to be done in such a simple manner.
There are some good, simple instructions and explaination in the manual and some may notice the warnings regarding the use of such solvents as lacquer thinner, etc on vehicles.
Two years before I retired, Hyundia had me do a series of two hour seminars for their entire field engineer's service people for US and Canada. Produced a nice 30 page manual, one that was simple in explainations,etc. These field people took it into dealers and discussed it, had copies made, etc. to leave with the service managers.
Having worked with many of their field people for over 13 years, knew most, had their personal phone numbers, emails, etc.
When I would ask them how this was being accepted by the dealers, their service managers, etc, the answers were pretty much the same as Ford's dealerships years before.
It is not that the manufacturers don't care, and they do try to address the issues.
The problem is the way the car companies are structured, and what one person in one of them, explained as the "big bucket".
Which is that if there is a customer complaint, the dealer will normally, sort of, attempt to resolve it and if the concern was created by the dealers employee's, they could "throw the claim in the bucket of claims" and get paid on a part of their agreement referred to "fit and finish", which then moved the costs back to the assembly plant, not coming out of the dealers revenues.
Dealers are paid a flat fee for new car get ready. If they can move any "concerns" to their warranty side, they can then collect the "internal warranty cost reimbursement", which is a lot more than the flat rate fee for new car get ready.
Just some "inside input" on this issue.
So, yeah, sometimes it is better for a new owner, who has the abilities and equipment, to do their own "new car prep", depends on each dealership and if they are one's that actually do what is best for the customer, not just their bottom line.