Here is what I understand from her accounts.
1. Oil change and and they didn't put in any/enough oil in the car after it was drained. Car lit up like a Christmas tree and started to overheat on her short drive home. It was towed back to the dealer after repeated unanswered calls. I believe once it was towed, they couldn't find it at one point and it took her three days to get the car back.
2. Went in for a service and a software update and the tech unplugged the computer before software update was fully uploaded to the car. This left the car in some sort of zombie state. She tried to drive it off the lot and the car was bucking and stuttering so bad, she didn't even get to the street before turning it around and handing it back to the service department. Based on her description, I'm not sure how the tech even got it out of the service bay. Everyone admitted the car was undriveable when she confronted them, yet somehow it was still signed off as having a completed service and software update.
3. Most recent one was following a transmission flush, they either didn't put the plug back in or didn't put it in very well. She walked into the garage to drive to work the next morning and found the floor of the garage covered in transmission fluid. Back onto the tow truck it went for at least the second time in the last six months.... I cleaned up all the kitty litter and sand from this huge mess at our recent visit.
4. I don't remember all the details from the oldest incident last winter, but it too was a simple routine service stop gone horribly wrong and left her in a service loaner for a week fighting with the dealership to get the car back.
You can't make this stuff up some times.
She loves her G90. It's her second one and she had an Equss before that. The dealership she got the Equus and the first G90 was really good to her with both service and sales. Sadly, they lost their Genisus franchise when Hyundia reduced the number of dealerships, and she's stuck with the only game in town and their incompetent service department. Fortunately, she saw through their shady sales tactics and actually bought the car from the next closest dealership 100 miles away and they drove it to her house for delivery.