G37 7speed transmission reprogram
#796
Registered User
keg, Thanks.... Perhaps we the Posters here should get together in a group Fashion and harrass Infiniti. Let's think about it. There is Strength In Numbers, sometimes !!
The Bottom Line to me: I actually like this car alot.... I really hope there is a FIX, but Porell has put aKaboosh on that it seems with his new 2012 G37X. If I am successful on the Turn in due to this "malfunction", I am afraid to trade up to the M37X ( a little larger - actually more preferable to me), but that car seems to have the same problems. There are Pro and Con posts there too !!
The Bottom Line to me: I actually like this car alot.... I really hope there is a FIX, but Porell has put aKaboosh on that it seems with his new 2012 G37X. If I am successful on the Turn in due to this "malfunction", I am afraid to trade up to the M37X ( a little larger - actually more preferable to me), but that car seems to have the same problems. There are Pro and Con posts there too !!
#798
You describe all of the issues I have with this transmission perfectly ('11 G37 cpe). I'm tired of talking to them about it. I'm just going to replace this junk with the 335i that I should have bought in the first place. Honestly, I can't believe they can continue to sell these cars with this pathetic transmission. Worst transmission of ANY car I have ever owned. I have to use manual mode all the time, otherwise I want to pound my fists on something. It is always in the wrong gear. I've never regretted buying any car before, until this one. I also have little/no faith that they can correct the programming. The programmers of the shift logic obviously have never been behind the wheel of the car. Just get in ANY other car with a 6 or 7 or 8 speed auto and compare. The Infiniti transmission works like there's a temperamental child in the seat next to you randomly picking gears while picking his nose.
#799
I had the 75a revised software update earlier today. I've driven approx 150 miles mixed city and interstate. Much much improved! I will tell you the service manager said he expects yet anther revision within the next month or so. However the 75a revision on my 09 made a dramatic improvement. I hypothesize that those that didn't see any improvement may have not had a fully successful reprogram since this involves both an ECM and Tcm reflash.
#800
Movin On!
iTrader: (13)
I had the 75a revised software update earlier today. I've driven approx 150 miles mixed city and interstate. Much much improved! I will tell you the service manager said he expects yet anther revision within the next month or so. However the 75a revision on my 09 made a dramatic improvement. I hypothesize that those that didn't see any improvement may have not had a fully successful reprogram since this involves both an ECM and Tcm reflash.
#802
Registered User
I just visited my dealer for oil change. While I was there, I told my service adviser about the lag I'm still experiencing from time to time. Guess what? Same old story, I got the answer "unable to duplicate". I guess I'll continue to report the same complaint every time I am there until they have a fix.
#803
I experience the lag every time I drive. If you drive the car 'aggressively' all the time, it happens very frequently. By aggressively, I mean, brake, turn, gas. Winding roads, quick cornering, etc. This 7AT falls flat on its face when driven spiritedly.
And there's different types of lag too... There's the annoying kind that just makes the car annoying to drive and you wish you were in your other car. And there's the dangerous kind where the car just does not GO, for a couple seconds.
I experience the dangerous kind pretty rarely, but after it happens a few times, you lose all faith in the car's ability to GO when commanded. It may as well have 200HP, because the 330 is not consistently on tap. I'll take consistently-moderate-acceleration over "awesome acceleration most of the time except once in a while".
I'm not talking about an occasional sprint or flooring it or taking one turn a little faster than 'normal'. This car is great in the test drive, it sucks when you want to drive it like a sports coupe every day.
I am talking about steady spirited driving, maintaining some speed thru turns (within VERY SAFE limits) and getting back on the gas at the optimum time. This is simply not a driver's car like the G35 5AT was. Heck, I am sad to say it is not even the driver's car that a Hyundai is either. Using manual mode you can avoid the lag about half the time. It still downshifts unexpectedly in a turn even in manual mode though. None of my other AT cars have this problem and I drive them all spiritedly, like I have been driving for 20+ years.
Whats even more maddening is that the stupid 7AT isn't luxurious either! It's just always rough, always unrefined, and usually in the wrong gear. Don't think so? Drive a Hyundai, or a Mazda, or an Audi, or a BMW, or a Ford, and compare.
The consumer surveys are quite clear and documented and Nissan has acknowledged that the single biggest complaint about Infiniti vehicles in the last few years is the transmission. It's not because "some of us" are complainers. It's defective. For those who disagree, you're just not driving it *consistently* spiritedly, or you're hoping to protect your investment, like I was for a while, keeping silent about this.
(2011 7at coupe with paddles)
.
And there's different types of lag too... There's the annoying kind that just makes the car annoying to drive and you wish you were in your other car. And there's the dangerous kind where the car just does not GO, for a couple seconds.
I experience the dangerous kind pretty rarely, but after it happens a few times, you lose all faith in the car's ability to GO when commanded. It may as well have 200HP, because the 330 is not consistently on tap. I'll take consistently-moderate-acceleration over "awesome acceleration most of the time except once in a while".
I'm not talking about an occasional sprint or flooring it or taking one turn a little faster than 'normal'. This car is great in the test drive, it sucks when you want to drive it like a sports coupe every day.
I am talking about steady spirited driving, maintaining some speed thru turns (within VERY SAFE limits) and getting back on the gas at the optimum time. This is simply not a driver's car like the G35 5AT was. Heck, I am sad to say it is not even the driver's car that a Hyundai is either. Using manual mode you can avoid the lag about half the time. It still downshifts unexpectedly in a turn even in manual mode though. None of my other AT cars have this problem and I drive them all spiritedly, like I have been driving for 20+ years.
Whats even more maddening is that the stupid 7AT isn't luxurious either! It's just always rough, always unrefined, and usually in the wrong gear. Don't think so? Drive a Hyundai, or a Mazda, or an Audi, or a BMW, or a Ford, and compare.
The consumer surveys are quite clear and documented and Nissan has acknowledged that the single biggest complaint about Infiniti vehicles in the last few years is the transmission. It's not because "some of us" are complainers. It's defective. For those who disagree, you're just not driving it *consistently* spiritedly, or you're hoping to protect your investment, like I was for a while, keeping silent about this.
(2011 7at coupe with paddles)
.
Last edited by mikeb2004; 01-04-2012 at 03:11 PM.
#804
Registered User
mikeb2004, have you tried to reset the ecu?
I took my car back from the dealer and done some city driving. Very responsive and no lag at all. They didn't tell me, but I guess they reset the ecu while my car was at the dealer. But I'm sure history will repeat itself and I will experience lag again in stop and go traffic a week or 2 later.
I took my car back from the dealer and done some city driving. Very responsive and no lag at all. They didn't tell me, but I guess they reset the ecu while my car was at the dealer. But I'm sure history will repeat itself and I will experience lag again in stop and go traffic a week or 2 later.
#805
mikeb2004, have you tried to reset the ecu?
I took my car back from the dealer and done some city driving. Very responsive and no lag at all. They didn't tell me, but I guess they reset the ecu while my car was at the dealer. But I'm sure history will repeat itself and I will experience lag again in stop and go traffic a week or 2 later.
I took my car back from the dealer and done some city driving. Very responsive and no lag at all. They didn't tell me, but I guess they reset the ecu while my car was at the dealer. But I'm sure history will repeat itself and I will experience lag again in stop and go traffic a week or 2 later.
I think I just reset now just to appease myself from driving it through the dealer's showroom window
#807
Registered User
#808
Registered User
I wish Infiniti could provide me their source code. I'll prepend ecu reset to the start button action list. Just a wishful thinking...
#810
Registered User