godsson1

Hey all...i have a 2009 g37x which i just purchased used and i feel a slight jerk when i ease off the gas...once it hits around 20mph that slight jerk happens. Any ideas what it could be or how i can cure it...or even if its normal....anything will help!

Rad_Slinger

iTrader: (12)

There's a TSB to have the transmission reprogrammed. Supposedly it stops after the ecu flash. Haven't done mine yet.

godsson1

TSB? is this something where i have to go to the dealership? im a newbie!

godsson1

also do u get this from your 37s as well

Ibanez540r

iTrader: (1)

"Technical Service Bulletin" it is a term for notices that dealerships get from Inifniti about issued related to the cars. Yes, you have to go to the dealership and have them re-program the "computer".

godsson1

Is the warranty covered or a free service?

Rad_Slinger

iTrader: (12)

You should probably just call Your nearest Infiniti dealer.

gbest03

iTrader: (4)

Infiniti calls it an ITB.

godsson1

cool...thanks guys

Marc Collins

By the way, it's supposed to do that. It downshifts as if you were driving a manual transmission car. That is, it tries to always be in the right gear as opposed to sloshing along the way a normal automatic does.

Try it for a while and see if you "get it." You only need the reprogramming if there are rough shifts (up or down).

TheAmazingNik

I got mine done and it helps but it doesnt completely go away but it is much smoother. I have rwd but I dont think that matters too much. and dont let them charge you mine was free.

godsson1

I have my appointment on Wednesday so I will def try and avoid the charge...mines is very noticeable tho so I think it needs the reprogram. Thanks again all

godsson1

Hey all I just got my reflag yesterday and from what I can tell its a much smoother ride. Jerk is gone and it's a free service! Go and get yours done if your experiencing this

YoulikemyG

Try easing off the gas slowly it works for me