I just got the update. I was just driving past the dealership and decided to pop in. Asked if the new update was available, and without any hassle, questions, or even a test drive, the service advisor wrote me up and took the car without an appt. The porter gave me a ride home, then picked me up when the car was ready 2 hrs later. I only drove a whole 2 miles home, but seems better so far. Acceleration is much smoother and the harsh downshifts are gone. Lag is drastically reduced. Like others stated, there is almost immediate response when you step on the gas after braking or coasting. I say there may be less than 0.5 sec. lag now, whereas before the update, nothing would happen for 2 seconds after you step on the gas pedal. I'll do some more driving this weekend and see how it is.

I did glance through all the work papers and confirmed the update was ITB12-027. I also saw some pages with my VIN# and ECU/TCM id # on it. I assume that was confirmation whether my car was covered under this TSB or not.

 

For those of you who got the ITB12-027 update, please kindly post your G's build date. This could be interesting.

 

sticker on my door says 3/2010. Purchased 4/2010.

 

I took my car to service today and got a 2012 loaner, man that car is so much more refined transmission wise. Later I got a call that they did applied the newest update that was released 2 weeks ago. While driving it home, I felt a little acceleration but then when I was on freeway, the car did not feel anything like the 2012 I drove earlier. Idk if it supposed to be like this but I have not seen any drastic improvement yet. I'll drive a little more tomorrow and update how it is.

Thanks Infiniti for at least trying.

 

I've had this new ITB done today. I live in Santa Clara, right down the street from Frontier, but I've never dealt with them from a service perspective. I take my car to Beshoff and deal w/Joey specifically.

My '10s build date is April 2010.

The harsh downshift has not happened in D so far and the shifts are much smoother, the car is also much more lively and responsive. I would say the lag after coasting is nearly completely gone. Pulling into my driveway I noticed a little bit of a lag, but that may have been my fault modulating the throttle since there is a stop sign by my house. I would say the car drives 75-90% better, but I need to see as the transmission adapts and will keep everyone posted after a few thousand miles are put on the car.

 

Hey Guys. Noticing something wierd after update. I went into the Diagnosis mode on the navigation unit trying to see if the ECU / TCM number would show there. In there I found in the Error History a error called CAN_COM_CIRCUIT with a count of 22. This was not occuring before the update. Can you check this out if you have update and see if you are getting this?

To get to Diag Mode - Start Engine.
Turn off the Radio
Press and hold the Settings button - While keeping this pressed, turn the volume **** 40 clicks or more in either direction till you hear a beep and let go.

Now in Diagnostics mode. Go to second option (Not Self Diagnosis) and then go to Error History... Do you see it?

 

Mine says CAN_COM_CIRCUIT_21. Not sure what this means or if I had it before the update. I never knew I could do this.

 

Hey guys, hopefully I will be an avid member here soon. With that said, I'm looking at a 2010 G37x with a salvage/rebuilt title and was wondering if I can have this service done on the car regardless of title? Thanks fellas

 

One of the posts after the update mentioned shift points changes. I assume all of the 7sp are this way but I've always been disappointed that at say a low mph roll (10 mph) this transmission only downshifts to 2nd (should be 1st) and at 40mph it only drops to 3rd. Does the new programming fix this by chance? Yes I know I can manually drop it but we all know then up shifting from there on is never going to be timed right and happen at the best rpm point.

 

In addition, I wonder if they are going to work on further updates for this transmission. Kinda like how the 5AT ended up just about perfect for an AT, I wonder if they can/will get the 7AT to the same point.

I could just be greedy.....for now the 7AT acts a lot better than it did before (although Im interested to know why someone thinks an actual '12 felt better than a '10 or '11 with the new update installed)

 

That sucks man. Was hoping you finally get some resolution. Didnt you have your ECM box replaced? If so than how they can go by car's production date. Just thought this might be another angle you can try.

Hope us 09ers get some love soon, so jealous from all the positive feed backs.

 

It seems strange that it's not covering the entire G 7AT range. Why are some being excluded from this? Did Infiniti use different ECMs that aren't compatible w/ this new software upgrade, I seriously doubt it. There must be a logical reason behind this but I'm having a tough time figuring out what it could be

That would really suck if there's something incompatible in the 09s & early 10s that keeps us from getting this improvement (which is sounding pretty significant from all the positive reviews).

 

Latest News Regarding the previous post: After some more persistence on my part, the Service Advisor had the Tech look into this exclusion factor some more. Fortunately, after double checking two Infiniti sites (according to the advisor), they found that my car DOES Fall into the category !!!

She just called, to come and pick up my car. The Reflash was administered. She siad: hopefully, I will be more satisfied with the drive. Seems that they did not drive it, but leaving it up to me. I had also asked about a BT update (different Thread - "Software Update") which she told me was not applicable. That TSB indicates that the BT will get to making a call quicker. I have Navi and that does take far too many steps to make simple phone call.

I will report my results as soon as i can.

Morale to the story: the TSB appears to be for all 3.7 Gs 2010-2011, I couldn't understand how mine could be EXCLUDED...Be persistent with the Dealer.

 

HappyG, Chris11, and Mike: See my post of a few minutes ago. Upon further investigation - my Dealer found that the TSB IS applicable to my car. They performed the Reflash this morning, car is ready to pick up !! Hopefully, I will expereince the very positive results all of members have posted thus far.

 

Dus1101, just out of curiosity, what is the production date of your G37? Mine is June 2011, and I'm just wondering if maybe June and later does not apply?

Thanks for the suggestion about Beshoff Hapa. I might try giving them a call and see what they say.

Almatti, what did you ask them the second time you called? I might have to try this to see if I can get mine applied as well!