If you read back in the thread, I make reference to those who want a Lexus-like experience. They are the majority apparently, so the new programming is designed to keep them happy.

What you need to do is spend some time in DS--and see if it offers the sportiness of the old "D" mode. If so, we have the best of both worlds. If not, we just have "neutered" as others have described.

 

I have my car tune.Should i get the tune remove and back to stock before take it to the dealer. To my under stand the tune would be erase with the dealer up date.

 

PLEASE!!!!!!!!!!!!!:

Those who have had ITB12-27 or ITB 12-27a applied, please stick your car in DS and drive a while and tell us the following comparisons to the prior DS mode:

1) Does the tranny still rev-match and downshift on panic (very hard and/or sudden) braking? (Removed from the new D apparently)

2) Does the tranny still largely ignore M mode shift requests and refuse to upshift below 2,000 rpm and downshift aggressively when slowing or braking (instead of acting like Manual mode should and waiting for a shift command unless you come to a complete stop and forget to downshift)?

3) Does the tranny still fairly aggressively downshift on coasting to a stop? The original D mode did this, but it has been removed or severely softened from all updates to D, including this latest one. Some say it has also been softened in DS. It is designed to mimic a manual transmission, so for people only used to automatics, it might actually feel like the brake is being applied (fairly gently) upon coasting. Does that still happen in DS?

4) After you stab the throttle or brake and "set off" the performance mode in DS, how long does it remain in "pounce mode" under normal driving before it calms down awaiting the next sharp input? The old DS was over-responsive in some applications...staying on high alert for several minutes after a five-second "incident" of high performance. If the new one responds quickly and appropriately in the first place, there is no need for it to act like a scalded cat when you just want to drive along normally.

Answers to these 4 questions, hopefully with some consensus, will be very helpful. Thanks!

 

really... Sewell in Dallas never asks loanees to fill them, they do that for you. But they do use the Regular pump located behind their used car lot.

 

Well Marc here goes. I currently have a 2012 G37S 7AT Coupe:

1.Yes it still rev-matches in the DS mode.

2.Yes, it takes over control of the tranny in certain situations. Often downshifting for you if you're braking hard, and sometimes upshifting if you're nearing the redline or holding a high rev. point, all while in the "M" mode.

3.Yes, it rev matches in certain gears while breaking in DS mode such as 4-3 and 3-2. I don't mind this.

4. Yes, and then almost as quick as it started it disappears. When I need the throttle to respond quickly with a little pedal movement, sometimes it's there, sometimes it's not. I never really know.

I don't know why this should be such a problem for Infiniti. Doesn't the M35 have a nice little switch near the seat warmers which allows you to switch from "Eco, Sport, Normal" modes? It sets up the engine, tranny and suspension parameters for the car so they know how to do this, it's just they've only put in on the M series of cars. Kind of stupid I think since the G series sedan and coupe are a better match for this and the market they are going for. JMO

Al

 

Well, I called and spoke with the service manager and casually mentioned I had been digging around and tossed this TSB 12-027 at him. He called me back later and told me I did indeed have the most current update for my year, model type. He said if there was a newer update than I have they would be happy to try to solve my lag problems by applying it. Said they simply cannot since the system shows nothing newer.

Car is 2011 G37xS Sedan 7 A/T.

Well damnit.

 

I took my 2009 G37x in today and they said they could not find any codes and that my ECU flash's are current. I asked about ITB12027 and they said I had that applied in Jan. Go figure. Anyway they want to keep it through Thursday, do some more testing and maybe take them on a ride to demo lag & hes. sucks

 

I was told by my service manager that they cannot tell if a tsb applies to a vehicle until they attach their programming tool to the ecm. They said if it did not apply they could tell me quickly otherwise they would apply it. When they finished they said ITB 12-027A was applied. A year earlier I had the ITB 10-75 applied and it really did not make much of a difference.


For everyone with 2009 thru 2011's I can't see how they are up to date when this tsb came out in May 2012. In the case of my dealership I don't think they have done too many of these to date.

 

Long term followup to the update: I received the update a few weeks ago. I posted right after I got it. Car def is better. Again I don't think it's totally fixed but pretty dam close. Everything is smoother now. Some may not like that. The engine was very edgy before if you know what I mean. I have a 2011x sedan and they update it now problem. Bring a printout of the service update if you have to. This came out in May and is brand new! I recommend it for all who qualify. You should be happy overall.

-Scott

 

What?

Here's the main differences for me in D mode:

1. I feel I have more throttle response/torque at lower RPMs in lower gears
2. Reduced lag accelerating after braking/coasting or after cornering
3. A lot less engine braking when coasting to a stop with the foot off the gas

About the only thing that would qualify as Lexus-like is #3.

 

@Dexter_Morgan, see post 1246 in this thread. It says that if they aren't using a current version of the Consult software, it won't list any available updates. Hoping that helps.

 

Yes, you are correct. For those who had interim updates with lag, it is desirable to get rid of it. For those of us who bought an Infiniti instead of a Lexus on purpose, #3 is an unfortunate inclusion in the fix of other problems. #3 is just a choice that Infiniti has decided to go mainstream instead of sport sedan.

 

Thanks for the great info. Only missed one. #3 is downshifting moderately aggressively while coasting, not braking. Does DS mode still do that (the original D on mine does as well)?

And I completely agree with you re: the M switch. The next gen G better have that!

 

Yes, absolutely, in DS it does.
In D it also downshifts but it is subtle and not noticeably rev matched.

Yes, and yes.


In D, yes today I noticed especially going down hills and coasting, it downshifts nicely, not aggressive but you get some decent engine braking. I like this, it's not over the top, just good behavior from D mode. I didnt go down the SAME exact hill in DS, to compare, but my experience with DS is that "it is more aggressive with the downshifts and very noticeably rev-matches them". DS is a lot of fun now, without being absurd like before.

Yes D will stay in pounce mode for a reasonable amount of time. I don't know what everyone's ideal time is. And the car of course can't know what the road ahead looks like. It does a nice job, IMO. In DS it stays on "high alert" for longer. I know what you mean about the old behavior... DS use to stay in that mode for much too long. Now it seems more reasonable but definitely longer than in D.

 

Update, My Tranny feels better now. I just replaced 17" stock wheels with 19" OEM Coupe Wheels and 19" Micelin Super Sports, feels like a totally different car. The shifts seemed to hold much longer (higher RPM), but I asked a few and they said no reprogramming for TIRES were needed, so maybe the car just feels different with these tires on it, but I like it better now than I did 2 days ago!

I have a 2009 just FYI