Okay, so I read on here about this issue before but nothing pointed to what I think could be my issue. I wanted to get opinions before making my next move.

Today installed Niche Gt-5 20"'s did not put the pressure sensor in them. Left the sensors in the oem tires. Within an hour when going to sport shifting it only says D. After a restart of the car. It works for a moment then... back to D. Anyone thing this is a result of the car going into some safety mode? Maybe its required to put the (Tpms?) in the tire to prevent this?

Thoughts?

Btw, here are the new rims

 

Oh yeah, and my fog lights went out at the same time. Checked the 3rd fuse box on the left of the battery and its gooed still... sooo yeah this is a 2 fer 1 deal.

 

Unrelated. I drove 4 winters without TPMS in my 07 G35x and never had a problem with the AT. I have also had 1 winter without the TPMS in my 2011 G37S winter wheels and no issues but it's 6MT.

Wheels look nice btw.

 

^^ Agreed, it shouldn't have a thing to do with the TPMS.

Seems like a long shot, but how close are your tire diameters between the fronts and rears? If they were way off, I think it would trigger traction control system and set off a slew of lights before affecting the tranny shifting, but I'm trying to think what would relate to the timing of the wheel replacement.

 

Please let me know when you figure this out. I tried to put it in Sport Mode and it immediately went to D..

 

Does no one use the search function here?
It's a somewhat common issue that's been covered many times before. The problem is with the shifter switch under the shift ****. Transmission is fine and it has absolutely nothing to do with the tires, wheels or TPMS. It was simply a coincidence that it occurred at the same time. Anyhow, the fix is to replace the shifter switch. It's expensive though, so if you're under warranty get it done now.

 

Are any dash warning lights on other than the tire pressure warning?
Put your OEM wheels back on and see what happens. Check the ABS lines. Make sure you didn't accidentally damage anything.

 

All clues point to the transmission module going bad. Nothing else done to the car would make it not shift/work in DS mode.

 

Yeah, I tend to agree with you guys, as anything else definitely seems pretty far fetched. When it comes to troubleshooting though, I just hate accepting "coincidences". In general, when something is altered, and then immediately after that, another thing fails, it usually ends up being related.

 

Wow! This has just happen to me. Good thing i bought the extended warranty. But anyone had theres fix yet? What about the paddle shifters? Mine is not working w/ the shifter.

 

Ok wth! Mine is working again. Does any one have theirs going in and out on them? Figures when i show up at the dealers it decides to fixs itself.

 

That is what happened to me. So we went for a drive and the problem didnt occur. After I left it happened again. Going to schedule for a fix. $100 deductable on the extended warranty. Worth it though to have my fun.

Once I get it in and they give me the diagnosis I will post what it is on here.
As for coincidence, I cant imagine it was just that.

Will update.

 

They just called me. They are going to replace it under my extended warranty.