jo_sand

Hey was wondering if anyone has expierenced the G37 Rough 4th -> 3rd Downshift symptom and have gotten the TSB Fix from the dealer here in Canada(Toronto). I have a 09 G37x 7AT bought it beginning of June, pretty sure I do not have the update, my MM downshifts are pretty hard, was hoping this fix is available here and can solve that problem.

The information for the update is as follows:

TSB: ITB09-032
Classification: AT09-009
Release date: June 24, 2009

Applied Vehicles:

2009 G37 Sport Sedan (V36) 2WD and 4WD
2009 G37 Sport Coupe (V36) 2WD and 4WD
2009 FX35 (S51) 2WD
2009 FX35/50 (S51) AWD
2009 M35 (Y50) 2WD Only

Here is the orginal thread detailing what I am talking about
https://www.myg37.com/forums/g37-sed...downshift.html

Danny Boy

I am going to get it done this Friday at the same time replacing my inside mirror. The garage door opener is working intermittently.

ram18962

iTrader: (3)

Getting mine done tomorrow..Will update how it is after

Danny Boy

How does it drive? Any updates?

WhosUrBuddiee

iTrader: (1)

I just let out the clutch a little easier and it down shifts fine

ram18962

iTrader: (3)

Got my car back. Feels a lot lot smoother than before upshifts and downshifts are perfect. Anyone who has experienced the 4th to 3rd harsh downshift should definately get this done.

DasNos

Do you need to ask for the TSB fix explicitly ?

Or Infiniti would put in the fix when bring in the car for regular service ?

Thanks !

Danny Boy

Don't assume the dealer would do it for you when you take your car in. Tell them you want:

TSB: ITB09-032
Classification: AT09-009
Release date: June 24, 2009

I am getting mine done this Friday.

sg37

Danny,

How's the car now?

Danny Boy

I got my TSB update and it is running Okay. There is a still little down shifting but not as pronounced. It now runs smooth like other cars.

The downside of this is that if you need to accelerate you have to step on the gas peddle and force a downshift. There will be a time delay in shifting.

Danny