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Infiniti FX35 Transmission Problems

48 messages,  Last post on Apr 30, 2012 at 5:43 PM

You are in the Infiniti FX35 FX45 FX50 Forum.

What is this discussion about? Infiniti FX35, Infiniti FX45, SUV

Messages Page 2 of 6

#2 of 48 Re: 09 FX35 Transmission [rwjs60] by rwjs60

Aug 01, 2009 (6:53 pm)

Replying to: rwjs60 (Jul 13, 2009 7:22 pm)
Since no one responded I must be the only one.
 
Anyway, after my appointment with the dealer on 7-16 and was told that there was nothing wrong, I did some more research and found out from another forum that Infiniti had indeed issued a Technical Service Bulletin concern the issue. The issue was transmission downshifting problem from 4 to 3. I made another trip to the dealer and informed them of the bulletin from Infiniti. They got the bulletin off the internet and did the procedure. I think it was a computer software update. Now they car is running like a dream.
 
The bulletin is ITB09-032. It affects all 2009 models with the 7 speed automatic transmission.

#3 of 48 Re: 09 FX35 Transmission [rwjs60] by tidester

Aug 01, 2009 (9:29 pm)

Replying to: rwjs60 (Aug 01, 2009 6:53 pm)
I'm glad you got that resolved and thanks for the update!
 
tidester, host
SUVs and Smart Shopper

#4 of 48 Should I buy a 2007 FX35 to replace a 2004 SRX? by msfur

Oct 24, 2009 (5:24 pm)

I have a 2004 Cadillac SRX I love but it has not been reliable.
I am now looking at the FX35, but fear it won't have the comfort I am used to/looking for.
I do like the look of the car, and want something very reliable, so, any ideas/suggestions?

#6 of 48 2009 FX35 TRANSMISSION by rickydean

Dec 28, 2009 (6:00 am)

I bought a fx35 in October 2009. The 7-speed transmission shifts constantly. It gets up to 7th gear by 40 mph. When you come to a hill at 40mph it labors unless you downshift two gears to 5th. When you take you foot off the gas the transmission pulls back because it is in a higher gear then it should be. The dealer says it has the software patch that others said fixed the 3rd/4th gear. He also said others have complained to infiniti and they are working on it. Are others having this problem? Any solutions?

#7 of 48 Re: 2009 FX35 TRANSMISSION [rickydean] by jrphilfan

Jan 29, 2010 (12:42 pm)

Replying to: rickydean (Dec 28, 2009 6:00 am)
Yes...same issue here. Transmission flash version is current and I still hate the 7 speed programming and gear ratios. Problem does not seem to appear consistently either...some days are better than others. Only way around this (at least for me so far) is to drive it in the manual "Drive Sport" (DS) mode. At least I can shift up and down into gears that I know are more appropriate for the road and terrain. I haven't noticed too much of a hit in gas mileage when driving in DS, although it definitely isn't as good as in regular "D" drive mode or with cruise control. I really hope they figure this out. To be clear, I know that the 7 speed tranny takes some getting used to, but this seems so way off. Why aren't the G37 drivers seeing this issue? Don't they have the same 7 speed tranny????

#8 of 48 Re: 2009 FX35 TRANSMISSION [rickydean] by dirokol

Feb 05, 2010 (7:46 pm)

Replying to: rickydean (Dec 28, 2009 6:00 am)
Just came from dealership. Bought 2010 FX35 and can't get used to a new transmission. Had 2004 FX35 AWD and it was much smoother ride. New FX constantly gives me a pull back(between 30-15 mph.) when i take my foot off gas. Had to bring car to dealership to check my car. Was told that there is nothing wrong with it, and it can't be reflash since its 2010 model.
Drives me absolutely crazy. Will go to a different dealership.

#9 of 48 Filed Lemon Law Claim for 2009 FX35 by jbaby79

May 05, 2010 (5:29 pm)

I've been dealing with this problem for about a year now. I've had the tranny reflashed as well as ECM. None of these things worked. I just filed a lemon law claim in Georgia. I'll post on here what the outcome is. If Infiniti doesn't do anything about it, I'll be trading it in for an MDX.

#10 of 48 Re: 2009 FX35 TRANSMISSION [jrphilfan] by aed1

May 14, 2010 (9:52 am)

Replying to: jrphilfan (Jan 29, 2010 12:42 pm)
I have a 2009 G37S. The 7 speed auto transmission is driving me crazy. I have all the same complaints - jerky shifting in low gears, hesitation when accelerating. I don't like the gear ratios - it's constantly shifting. Had the same car in an 04 that was great - 5 speed auto transmission - no problems.

#11 of 48 Re: 2009 FX35 TRANSMISSION [dirokol] by classy64

Oct 03, 2010 (7:06 pm)

Replying to: dirokol (Feb 05, 2010 7:46 pm)
I'm experiencing a lag in shifting in low gears also. I'm also experiencing a fluttering noise when I excelerate. Took it to the dealer (for the flutter) and they said it is normal. It is driving me crazy. I had a 2007 FX35 and it never made this type of noice. The mechanic said it's a differen model than the 2007 and that's just the way it is. I can't believe that Infiniti would design a luxury car that would make that kind of noise and call it normal, this car should pur like a kitten. I had a friend take a look and he said it was something in the manifold. Another friend suggests (by listening only) that the spark plugs are not firing up properly and not sending the right fuel mixture to the engine. He is going to pull the plugs this week to see if that is the problem.
 
Anyone else experiencing a fluttering noise. I will keep you posted on my results.

Messages Page 2 of 6

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