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Weird thing happened to me today, I was driving around in my 2018 4s came to a stop light and a warning came on and said reverse gear not available. Then the car would not shift out of 1st gear, I hit the up shift paddle and it shifted to 3rd gear skipping 2nd completely. When I stopped again it wouldn’t shift out of 1st again, I was driving in auto not manual but It wouldn’t shift automatically. I turned the car off, started it again and everything went back to normal. I recently installed a race chip but I don’t believe any of the plugs went to any sensors that affect the transmission. Has anyone experienced this before?
Weird thing happened to me today, I was driving around in my 2018 4s came to a stop light and a warning came on and said reverse gear not available. Then the car would not shift out of 1st gear, I hit the up shift paddle and it shifted to 3rd gear skipping 2nd completely. When I stopped again it wouldn’t shift out of 1st again, I was driving in auto not manual but It wouldn’t shift automatically. I turned the car off, started it again and everything went back to normal. I recently installed a race chip but I don’t believe any of the plugs went to any sensors that affect the transmission. Has anyone experienced this before?
Yes I have had this exact issue happen multiple times, not a good feeling and very unsafe. According to my SA Porsche is still working on a permanent fix for this, they tried applying a temp fix that didn't work. This has been going on for more than a year for me and I'm getting impatient with Porsche...
Got this last summer, was told a software update was needed. I started the car and it wouldn't move. Shut it off and looked under it to see if there were any clues. Got back in and it was gone.
I believe this problem I had was caused by the Racechip that I put in because I have not had any problems since I took it out , a couple days after I created the original post.
Just got my TTST towed in with this problem. Same error message with trans stuck in 3rd gear. Only things I could point to as indicators before is several months of whirring sound which I had assumed was turbo related… also 2 or three times of power loss for 10 seconds or so… not sure if either of those are related to this transmission issue. I’ll post again once I hear back from dealer on this issue.
Got my car back from the dealer… they said it was software and updated the software under CPO warranty (would have been roughly $300 in labor). They also said this was a quite common known issue in 2018-20 Panameras… Which begs the question of why they don’t put out a campaign on this and fix the software issue on all cars…
This has happened to me a few times, typically while accelerating hard on an on ramp. The PDK will kick down a few gears and then I get the error message. Even numbered gears and reverse are then locked out until I stop the car, turn it off and then restart it. Once restarted, the error message goes away and the car drives normally. I’ve had the TCU updated a couple of times and recently had a full transmission service at 40k miles but it still happens occasionally. The dealer is clueless as to the cause. Not confidence inspiring by any means.
04-08-2020, 06:16 PM
Has This Happened On Anyone’s 2018 Panamera
. Shut it off and looked under it to see if there were any clues. Got back in and it was gone. 
