Just another data point. Mine (G80 3.8 AWD) seems to have a slight delayed upshift from 2-3 and 4-5. Only overtly noticable under light acceleration i.e. slowing down to take a corner around 20mph then accel.
I also notice it with ACC on in stop/go traffic.
Oddly I only notice it in standard drive mode, not eco or sport in similar driving style. Seems like the difference in programming might hide it in those modes.
Funny (depe nding on your perpective) is that I drove the car for a week prior to buying it and didn't notice it happening until after it signed the dotted line
I'm tempted to take it to my reputable transmission shop and have them diagnose it for me before I venture into dealer-land.
That's really too bad. These cars are not all that common, but it's my understanding that this transmission has been around a while.
I have not flushed the ATF in my car but i'm considering it -- its about 89K miles now.
in my 4.6 case, a full flush got me around 10k miles before it started acting up again, where by the gear box got stuck in 6th gear, on a long highway drive, Then the gear box reset to normal operation all by itself after 4 hours,
I too have a 2017 g80 that’s doing the exact same thing. Hard shift from 2 to 3 and 4 to 5. Dealer had it for two weeks with no loaner. I had to borrow a car and it is worse than it was before I took it to them. There should be a recall on these transmissions. If anyone has had the same issue that has been resolved please post it.
No I bought it used with 49,000 miles. It ran better than new for about 4 months. Then this started. The dealership I bought it from who had it for two weeks claim they don’t have any loaners available. So I’m gonna take it to a different dealership that has their loaner policy on their website. It doesn’t specify new or used so I’m hoping to not only get a loaner but also to have my trans fixed. I’ll definitely post the outcome...
Yes, my 2017 G80 was doing the same thing. 2nd owner, 37500 miles, awd. Conicelli Genesis is replacing the transmission. Located in norristown pa. No questions asked. They have replaced several 17 G80’s transmissions. Apparently replacement fixes the problem. Hope this helps. Mike
Took it to a different dealership last week. Got a loaner
and 2 days later got a call from the service advisor saying that the technician wasn’t able to duplicate the issue. But I asked him to tell the technician to drive the car and then let it idle for about 15 min and then drive it again. And I informed him about the TSB. Low and behold, today I received a voicemail saying that they are contacting Hyundai to get the o.k. to replace the transmission. I believe the TSB is what led them to that decision. I would tell everyone having this same issue to print out the TSB and take it with you to the dealership and don’t accept nothing less than a new transmission! And a loaner while you wait!
I doubt it, since the 10/100,000 warranty only applies to first owner. Otherwise it's 5/60,000 to you.
I was thinking the same as TinsleyC. With 99,000 miles you would have to be the first owner to still be covered under the warranty.
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