The service department was good but not five-star. - Volker H.
The service department was good but not five-star. My CT6 plug-in hybrid had an issue with the cooling of the propulsion battery, which prevented me from charging the car. The service department ultimately diagnosed the problem and correctly it under factory warranty. The technician provided a detailed description of the diagnosis, the issue and the several steps needed to correct it. This was better than what I usually get from other car dealer service departments.
I am removing one star for the poor job they did on handling my appointment. I made an appointment online and entered all the requested information including the vehicle and the fact that it is a plug-in hybrid. The first available appointment was a week later, which was a Friday morning. The service advisor told me, that he would call me as soon as they have a diagnosis. When I had not heard from him at the end of the day I called and he told me, they had not had a chance to do the diagnosis. He said they would get to it either Saturday or latest Monday morning. I did not hear from the service advisor on Monday or Tuesday. When I called Wednesday morning, he said he did not get an update from the technician but would walk to the back end of the shop to talk to him. After a while he came back and said that the technician had not started the diagnosis. That is 4 working days after my drop-off on the scheduled appointment day! The service advisor explained that the technician, who is certified to work on plug-in hybrids, is also the guy who works on transmission. He had another transmission job in his bay and could not work on my car. I always thought I make an appointment with someone for exactly the purpose to get a spot on their busy schedule.
In the end it seems like they performed my car's diagnosis later that Wednesday. The repair did not require ordering any parts and the car was ready for pick-up in the afternoon of the next day.
I guess, next time I will call the service department shortly before my appointment to make sure that the specialized technician is indeed available on the day, I am scheduled to bring my car in. Since this is a combined service department for Chevrolet and Cadillac, I have to assume that this type of scheduling problem can happen to all Chevrolet Volt PHEV and Bolt BEV owners, too
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