MaxdOut

iTrader: (1)

It's been a long day....

KLB

I don't see any difference personally.

brynomon

Wow lots of people from Illinois are here now!

MaxdOut

iTrader: (1)

I finally had the time to bring the car in to Hoffman Estates Infiniti for an unrelated matter (rail dust on my rear emblem, had it replaced) and had an opportunity to speak to the service manager. When I initially talked to him a few weeks ago his impression was that the TSB had a negative effect on the performance of the car which swayed me to hold off on the TSB. Now that he’s had some time behind the wheel, he did notice that it in fact did improve the car’s overall performance as well as increased his MPG by a few gallons. He convinced me to give it a shot.

Although this did not fix the ‘Flare’ issue (knew that it would not), it did make a dramatic difference in how the car drives. There was no change in overall acceleration, but it did effect gear changes. It feels like the car’s up shift is, as someone mentioned before, more precisely. Instead of staying in the current gear a hair longer than it should it immediately shifts to the next gear. The car is now coasting with very little noticeable engine braking.

Overall, I am incredibly please with the update. It surprised me that a simple update could have such an incredible impact on how the transmission reacts. It really does feel like a completely different car.

Another surprise was how quickly the dealership was able to apply the update. Given I was only schedule to have the emblem replaced, they were also able to do the update and have me back on the road in less than 45 min! I was impressed.

DustySlider

Strange...I had quite the opposite experience from you. Took the car in this morning to Cerritos Infiniti. Had to get a oil change anyway. Lady named April helped me out. I told her I needed an oil change and a TSB update. I showed her a print out of the TSB. 5 minutes later, one of the service guys comes by to pick me up and drop me off at my office (I work pretty close to the dealer). Swing by during lunch to pick up, pay, and done.

My main problem was always right dead set at 20mph mark. Cruise at anything over 20 mph, lift foot off gas, and right when speed drops to 20 I had that huge jerky downshift. After the TSB, problem is GONE! I am a much happier owner. This downshift problem was a major thorn in my side. It is so much better now. It's like I have a new car again. I was driving around in an industrial area near my house for a while just to make sure I wasn't dreaming. Could not duplicate the problem any more. Thank you Infiniti!

L-GT

Ah, sorry for the confusion. I did not go to the same dealer as mentioned. I went to Southwest Infiniti in Houston, TX. I still haven't gotten it resolved due to a busy week, but I intend on following up with the dealership to see if theres any additional development.

beerme986

iTrader: (2)

Also got this tsb done and the problem is gone now. No hassles by dealer and they seemed very aware of this tsb

ozzypriest

iTrader: (2)

Yes, I noticed the flare issue baaaad when driving around tonight on some backroads - stomp on it from a roll, and the engine first does a throttle lag, then the revs jump but the car doesn't move, and then finally the car decides to get motivated - I also had a number of vdc and then some red one right above the DIC, but too quick to see what it was. Don't what that was all about, but the drive was very dissapointing. Right now, my transmission sucks. Does this TSB/TCM reflash address all these issues?

ozzypriest

iTrader: (2)

I believe my check AT light was blinking during these flare periods - has any else who has the flare problem also experienced a check AT panel light?

KLB

That sounds like a different issue. The "flare" mentioned happens once when the car is warm and it is when it shifts in the 4th to 5th gear range. If I'm not paying attention, I don't even know it happens. I did find it is not speed dependant last night. I ate at a restaurant that was just off a highway. When I left I pushed the gas a bit and it flared up around 60 instead of around 40-50 where I usually see it.

MaxdOut

iTrader: (1)

OK, that's completely different than the flare that most are experiencing. If the check AT light is coming on then bring it to the dealer, you may have more problems than a software issue.

Mike S.

yea...the "flare" is not a check engine/check AT type of thing. Its bad programing/code in the tranny computer. If your AT light flashes or blinks..then there might be more wrong with your car.

KnoxvilleG37

So since I have a sport coupe, can I print off the TSB and take it to my dealer for the update since most are having positive improvements?

KLB

Anyone with a 7AT should be able to get the TSB applied. I suggest making an appointment. Tell them your car is downshifting hard and ask them if they know about the TSB. That gives them a chance to look it up if they do not know about it.

SkyMG37x

They finally posted the complete TSB on one of the other Inifiniti info websites. Here's a copy:

http://home.comcast.net/~magredc5/G37/ITB09-032.pdf

Note Table A on the 3rd page - it lists the current TCM firmware part number based on the configuration (coupe/sedan/RWD/AWD).