forrmark

My 2011 G37 was purchased new in November and I don't understand all the posts complaining about the 7speed automatic. Mine shifts like all other automatic trans that I have had in other cars. In other words, no problems.
Should I be expecting problems in the future?

moomax

I got my 2011 in january of last year and at first I didn't notice it... Then a few weeks in I started to notice my car failing to accelerate when I stepped on the gas on the highway. It doesn't happen all the time... I find it happens more when you just got done accelerating off an on ramp and onto the highway and have eased up on the gas then go to press it down harder again to switch lanes. Its scary when u go to switch lanes and ur car doesnt want to go forward! Then it RAPIDLY ramps up! I can very easily see someone loosing control of their car cause of this. I also noticed it happens when in stop and go traffic. I slightly press the gas to get it to move up slowly but it WONT go! It just waits... then 2 seconds later it harshly kicks in!

k.diaz1105

I've felt this same exact thing in my 2009 G37 S Sedan & I've taken it to the dealer like 2-3 times complaining about it and they say that they'll fix it, but never do. It gets better the first couple of days and then it comes back.

cereal2k

iTrader: (10)

That's the cost of fuel efficiency guys. You will be at a higher gear that much quick with the 7AT, resulting in the slow push when stepping on it. So in short by design.

Options are get it tuned, use paddle shifter/gear shifter to downshift to a loweer gear when wanting to pass quickly for example, or get the hypertech pocket tuner.


To the original poster you will not have any issues, unless you need to make a very quick acceleration at cruising speeds.

MalbecG37S

I was going to post the same. I got a 2012 in Dec. No issues. And after reading all about the issues, I am very sensitive to it. There is an occasional awkward shift - but I've sensed the same from other auto's I've driven (came from an '06 350ZR auto (5 speed)).

The smoothest shifting vehicle was my '09 Murano - and that is because it was a CVT! That trans drove me nuts for other reasons....

To OP - just enjoy your G...I'm loving mine!

JDUB916

Aaaaaaaah ok, yes I too have felt that several times... So there is a dealership reflash to address this?

cereal2k

iTrader: (10)

Do search for the 7AT reprogram threads for the sharp downshifts if it's a bit too sporty. This is the TSB I'm referring to https://www.myg37.com/forums/tsb-tec...reprogram.html. There is no fix for the lag. I personally have no issue with the 7AT except for the lag, which is significantly reduced with the hypertech.

moomax

Well if this is "by design" then i'd say thats a pretty ****ty design as no car i've ever driven has had a lag like this and its outright dangerous. My friend's BMW 335xi has similar power and gas millage yet he doesn't have to worry if hes about to be rear ended when trying to switch lanes... I'd easily trade off an extra mpg or 10 or so hp to get rid of this problem.

What's interesting about it, is sometimes the problem doesn't even happen! I can rapidly ramp this thing up and down with no lag sometimes yet others I can't even get it to slowly ride up. If it was a delay due to having to switch through all the gears then why does the issue not always occur when rapidly accelerating yet will when doing a slow shift? Additionally, any of the 2012's i've driven either don't have this issue or its definitely been reduced so there must be something infiniti can do!

k.diaz1105

Infiniti told me they were going to reprogram something that should fix the problem? I honestly don't know what, but if they did do that, it didn't fix the problem.

Almatti

cereal2k: You seem to propose that you have the answer that Infiniti Engineers cannot supply or won't supply. How can that be, with so many Unhappy Campers out here now. The list is mounting. I hope you new guys posting here and on the other Thread are emailing or calling your complaints in to Infiniti... There is power in numbers... This may need to lead to some sort of Class Action Complaint to Attorneys General, Better Business Bureaus, etc.....You should read my posts of pursuit of satisfaction that I have been involved with for 1 year. I still demand satisfaction.

cereal2k

iTrader: (10)

I'm saying the lag would not be something I think Infiniti will take care of. The jerkiness on the downshifting they have a TSB for is all. I did leave out one other option which is driving in DS mode all the time. Yes there is power in numbers, but there may be a big difference in number of complaints on a forum, vs number of complaints to customer care/dealership against all 7AT cars sold for the lag. Maybe not enough for them to do any "fix". I would not hold my breath is all I'm saying.

Tazicon

iTrader: (1)

I have zero complaints after having the 7AT for 7 months and 12,000 miles on the G and 2 months and 4,000 miles on the Z.

cereal2k

iTrader: (10)

BMW's have a bit more torque , and yes I've seen where the log does not happen all the time. I think it would depend on which gear you are at before you step on the accelerator.

movinon

I've had my 2010 sedan, with 7speed auto, for almost 2 years and have put around 18,000 miles on it. I also have zero complaints.

tejasg37x

I only notice the lag if I try to "stomp" on the accelerator too quickly...if I'm a little easier on "stomping" on the accelerator, it's not bad and seems to accelerate quicker initially and smoother.
I've had to learn where that point is of pushing the accelerator too quickly, but also quick enough to accelerate like I want. There's a fine line there, but I feel like I know where it is now...
Does anyone else feel like this about theirs? Or tried this?