MrBBQ

iTrader: (9)

Just wondering if anybody else is noticing when going up or down a steeper driveway (not insane) the traction control would kick in and the car would have no power and jerk it's way up or down the driveway with minimal gas. The traction control light blinks as well. I tried this with the TCS turned off by holding down the TCS button, and the result is even worse. The car just gets stuck on the driveway and revs without going anywhere. It's pretty annoying when you're trying to go up or down a steeper driveway and you have the traction control kicking in. This happened when my IS350 was on F-Sport springs and still does it now on my BC coilovers. Something up with my car or common thing the car just does annoyingly? Googled and searching yielded no results.

Shervin350

mine does that also is because is a rwd car and both tires are not making contact to the ground, change the angle of the way you start going to your drive way it helps

Jeff Lange

iTrader: (1)

Never had that happen.

If it's still happening with Trac off, I'd say it's VSC kicking in. You can try turning off VSC. It still shouldn't be happening though, I don't think.

Jeff

Sango

iTrader: (10)

One could always upgrade to a true limited slip differential to replace the stock open version, then the issue would not exist.

MrBBQ

iTrader: (9)

^^ Idea has come to mind but seriously $. Just wondering if this happens to other people. Shervin350 said it happens to him too. Jeff Lange said it doesn't sound normal. With the TCS/VSC totally off, my car isn't going anywhere, it just revs. It's weird and really dangerous when there are cars around me when my car is struggling to go up or down a driveway. I have tried different angles without scraping, still does the same thing. Only happens on steeper driveways, most driveways are fine.

Sango

iTrader: (10)

^^
True true. It must be quite quite steep and not too flat to be able to trigger it.

Yeah I would agree too with Jeff.

Anyone mind to post a picture of the driveway/hill in question for reference?

Does it happen to be like this? LOL! (not to scale!!)

(car on top of incline)
^
/~\
/~~ \
/~~~ \ (ground)
/~~~~ \------------------------

laobo979

iTrader: (5)

Never had that issue on my 350 on the hill i drive.

MrBBQ

iTrader: (9)

No IMO it's not ridiculously steep else I would avoid it altogether. I'll see if I can get a video of it happening.

carlos3366

Mine does the same exact thing on my steep driveway. I assume is normal for the IS.

Justin2JZ

Mind posting a vid of it?

ISF4life

iTrader: (30)

Is normal , same for my IS350 and the ISF...

greg0126

iTrader: (2)

My driveway is steep and it happens at least once a week. It happened about 10 minutes ago as a matter of fact. I hate my driveway. I scrape and I'm only dropped on F-Sport...

A_Grasso

iTrader: (13)

It happens to me everyday since my driveway is really steep. I turn off TC but it just makes my wheel pain, so one tire gets worn alot faster than the other. This only happened after i lowered my car and really have to angle now

A_Grasso

iTrader: (13)

^ i meant to say wheel spin.

F-LEX350

Was it like 45 degrees uphill? or like a typical parking garage uphill?