G37 7speed transmission reprogram
#1141
^^^^@blnewt:
Just pick your year/model and leave other fields blank and it will show you all the TSB for that one.
For example you can try 2011 G37 first, and you will see the ITB12-027 in there. It was there the same day the TSB came out.
When you see the new TSB for your '09, you're all set! Then just give your dealer a call. they will check their 'Asist' system and see if the TSB is there for you. Mine did not have it yet, so they asked me to email them a link to the TSB on the Infiniti site (LOL?). Anyway a day later their system had the TSB in it and they scheduled my appointment.
Just pick your year/model and leave other fields blank and it will show you all the TSB for that one.
For example you can try 2011 G37 first, and you will see the ITB12-027 in there. It was there the same day the TSB came out.
When you see the new TSB for your '09, you're all set! Then just give your dealer a call. they will check their 'Asist' system and see if the TSB is there for you. Mine did not have it yet, so they asked me to email them a link to the TSB on the Infiniti site (LOL?). Anyway a day later their system had the TSB in it and they scheduled my appointment.
Not sure this will help us owners of the 2009s since the ITB is for 2010s and later will it? Yours is a 2010, so they just had to find it.
#1142
cool let us know... i seriously hate this transmission during traffic.
#1143
^^^@Silver37: When there is a TSB that applies to '09 models, it will appear there. It does not matter if it is the same TSB or a separate one. A TSB will appear on the list of TSBs for the 09 G37 when one which applies to the '09 is available. So, yes, it is an easy way for '09 owners find out when an update is available.
#1144
50-mile update:
Coasting is still better than before. The car still feels lighter on its feet. I did notice the lag; barely. It is much more manageable and bearable. I am afraid, however, that once the trans adapts, it'll be back to "normal".
Coasting is still better than before. The car still feels lighter on its feet. I did notice the lag; barely. It is much more manageable and bearable. I am afraid, however, that once the trans adapts, it'll be back to "normal".
#1145
Infiniti talks about adapting all the time. It is a great way to trick you into going home and stop complaining, and it serves to work on your psychology so that you eventually "believe" it learns to work like you want it to. Really, no transmission does this, including Infiniti's. And I personally have not ever observed any adapting behavior with mine. Immediately (literally in the first 5 miles) after an ECU reset by the dealer, it works exactly like it does after a couple thousand miles of driving - lagging all the time. All the transmission adapts to is internal operations, solenoid apply pressures, and so on. Overall behavior of the trans (lags or no lags, upshift and downshift timing, is programmed not learned. It will respond differently in different situations of course (like when you press the gas harder or you are turning), but this is not "adapting" or "learning", it is just following its program parameters.
I've driven the new program (ITB12-027) enough to be satisfied that the lag is "gone" - by that I mean that it seems to respond predictably and quickly like my other automatics do. As has been said before, all autos will have some quirks or small delays. Before ITB12-027, this trans quirks and loooong delays were way above and beyond those of other transmissions. Now I would say the 7AT is on-par. Not exceptional but it is no longer "bad" either. IMO.
For me, the G37 is now a Keeper with this transmission update. Before ITB12-027, I was taking steps to sell it and move on.
I've driven the new program (ITB12-027) enough to be satisfied that the lag is "gone" - by that I mean that it seems to respond predictably and quickly like my other automatics do. As has been said before, all autos will have some quirks or small delays. Before ITB12-027, this trans quirks and loooong delays were way above and beyond those of other transmissions. Now I would say the 7AT is on-par. Not exceptional but it is no longer "bad" either. IMO.
For me, the G37 is now a Keeper with this transmission update. Before ITB12-027, I was taking steps to sell it and move on.
Last edited by mikeb2004; 05-26-2012 at 08:24 PM.
#1146
Infiniti talks about adapting all the time. It is a great way to trick you into going home and stop complaining, and it serves to work on your psychology so that you eventually "believe" it learns to work like you want it to. Really, no transmission does this, including Infiniti's. And I personally have not ever observed any adapting behavior with mine. Immediately (literally in the first 5 miles) after an ECU reset by the dealer, it works exactly like it does after a couple thousand miles of driving - lagging all the time. All the transmission adapts to is internal operations, solenoid apply pressures, and so on. Overall behavior of the trans (lags or no lags, upshift and downshift timing, is programmed not learned. It will respond differently in different situations of course (like when you press the gas harder or you are turning), but this is not "adapting" or "learning", it is just following its program parameters.
I've driven the new program (ITB12-027) enough to be satisfied that the lag is "gone" - by that I mean that it seems to respond predictably and quickly like my other automatics do. As has been said before, all autos will have some quirks or small delays. Before ITB12-027, this trans quirks and loooong delays were way above and beyond those of other transmissions. Now I would say the 7AT is on-par. Not exceptional but it is no longer "bad" either. IMO.
For me, the G37 is now a Keeper with this transmission update. Before ITB12-027, I was taking steps to sell it and move on.
I've driven the new program (ITB12-027) enough to be satisfied that the lag is "gone" - by that I mean that it seems to respond predictably and quickly like my other automatics do. As has been said before, all autos will have some quirks or small delays. Before ITB12-027, this trans quirks and loooong delays were way above and beyond those of other transmissions. Now I would say the 7AT is on-par. Not exceptional but it is no longer "bad" either. IMO.
For me, the G37 is now a Keeper with this transmission update. Before ITB12-027, I was taking steps to sell it and move on.
Agreed! I've driven in excess of 250 miles since the update. I think this did the trick.
#1148
^^^@Silver37: When there is a TSB that applies to '09 models, it will appear there. It does not matter if it is the same TSB or a separate one. A TSB will appear on the list of TSBs for the 09 G37 when one which applies to the '09 is available. So, yes, it is an easy way for '09 owners find out when an update is available.
#1149
Registered User
Back from dealer. Got the reprogram done on my 2011
First impressions:
_____LAG_____IS______GONE______
DOMO (yes 8 of them)
Yep, got my update today. No more delay/lag. Didn't get to put a lot of miles on it yet, but it also seems to respond more quickly to your right foot (downshift), and pulling away from a stop seems a bit easier to modulate. Before, it was hard to pick anything between "slow" and "rocket launch" mode.
Almatti, are you here? RUN to your Infiniti dealer!!
First impressions:
_____LAG_____IS______GONE______
DOMO (yes 8 of them)
Yep, got my update today. No more delay/lag. Didn't get to put a lot of miles on it yet, but it also seems to respond more quickly to your right foot (downshift), and pulling away from a stop seems a bit easier to modulate. Before, it was hard to pick anything between "slow" and "rocket launch" mode.
Almatti, are you here? RUN to your Infiniti dealer!!
I just learned of this from a Edmunds.com forum email to me. I copies it and sent it to my Dealer servcei rep. I will schedule the appointment Pronto !!
#1150
Im gonna wait another week or two before getting on my dealers case to install it.....Im interested if this is going to be another TSB where the car reverts back to its normal (shameful) self.
#1152
For the past 2 weeks I've been on vacation from work so I've been only doing limited driving.
So far it looks like the harsh downshifts are gone and I noticed the lag has disappeared as well when coasting to getting back on the throttle. Starting Tue I'll be going back to work.
Last edited by jackal2001; 05-27-2012 at 05:55 PM.
#1154
#1155
Registered User
You refer to this as an ECU reset....From what I'm reading, it is actually and re-programming of the TCM/ECU which should have lasting affects to the behavior. I learned from my 07 G35X, once the ECU is Reprogrammed, there's No Going Back unless you replace the ECU with a new one which has the Old Program. In my 07, there was a TSB - ECU reprogramming issued that was to alleviate the Head Snapping Takeoff - it was responsive and touchy throttle - which I enjoyed. On a service visit in 2008 or early 2009, the Service Advisor "decided" to apply it since it was issued withoiut asking me about it. That creates a nice Warranty charge that they recover from infinti. I was livid, met the Manager, he had to order a new ECU without the New programming and installed free of charge. It still wasn't the same but better than the new ECU which really tempered down the original take off responsiveness..... There were complaints out there about exactly that: head snapping acceleration from a a stop...I loved it...Oh yeah, there was NO LAGGING with the 5 AT !!!
Last edited by Almatti; 05-28-2012 at 08:35 AM. Reason: additions to the post