Last post on Mar 14, 2013 at 7:46 PM
You are in the Infiniti M37 M56
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Infiniti M37, Sedan
#166 of 187 Re: Quirky /Jerky 7AT Transmission [richardnva]
May 17, 2012 (6:10 pm)
I leased my M37 Sport the first month it came out in 2010 (2011 model). The first day I drove the car the issues were apparent. I drove it directly back to the dealership, they said everything was fine..its learning your driving style..(I too have had Mercedes, BMW, Audi etc that learn your driving style) this was NOT the case.
Well, now I am at 33,000 miles and the issues have only gotten worse. Its been to the dealer a number of times for the JUMPY stops...when breaking (normal non aggressive) the tranny wants to JUMP FORWARD and almost hit the person in front of me. Its extremely scary and Infiniti has nothing to say about this? It not only does that but when breaking it downshifts bad and bumps at times. With the AC on I noticed it does all of this more frequently, although the issues are always there. Ive done the ECU flashes and other tricks that have done absolutely nothing. I will be leaving Infiniti. Sad thing is this car has one of the best designs and most amazing interiors, just one of the WORST engine set ups ever...very dangerous.
#167 of 187 Re: Quirky /Jerky 7AT Transmission [cr1t1calm4ss]
May 18, 2012 (7:33 am)
I can't believe you mentioned the JUMPY stops because I have experienced that at least twice and it happens so fast that I thought it was something I was doing! And yes I did almost hit the car in front of me! When I picked my mom up from the airport about a month ago I also noticed when I tried to accelerate on the freeway the engine just revved up and wouldn't budge. I had to take my foot off the gas! At least my mom heard it too. You are right about the car and it's design/interiors. They just need to get the engine down and they will have a TOP seller.
#168 of 187 Re: Quirky /Jerky 7AT Transmission [cr1t1calm4ss]
May 18, 2012 (7:55 am)
I have a 2011 M56 and am also frustrated with the quirky engine/transmission anomalies. I am at 40k miles now. Last week I brought my car back to the Infiniti dealer because of a "Chk Engine Soon" light. Dealer said it was due to a problem with the ECM (Elect Control Module) software, which had been updated twice before due to complaints about transmission hesitation. The new s/w seems no better at resolving the hesitation and odd surge problems. And every now and then the car seems to hold 3rd gear till about 4k+ RPM.
This is by far my biggest complaint about the car. I agree with the above comments that the interior of this car is absolutely beautiful, but Infiniti really needs to fix the tranny s/w! I am still hopeful there will be a fix, but unless that happens soon this will be my last Infiniti too..
#169 of 187 Re: M37 unsafe on interstates (IMHO) [ghstudio]
May 18, 2012 (7:55 am)
ghstudio, Did you ever figure out the problem with your car, or did you get out of your lease? I am still having problems with mine and do believe it's a safety issue!
#170 of 187 Complaint filed through NHTSA.gov
May 18, 2012 (8:21 am)
I just found this complaint filed through the NHTSA. Doesn't seem like much will be done about this car unless others report it too! Does it have to be reported through the NHTSA in order for something to be done?
I HAVE CONCERNING ISSUES WITH THE TRANSMISSION OF THIS VEHICLE SINCE PURCHASE 8/27/2010. THE TRANSMISSION HAS MAJOR HESITATION WHEN ACCELERATING, SLOWING DOWN AND WITH EVERDAY USE(JERKY FEELING IN CITY TRAFFIC) NO MATTER WHAT DRIVE MODE IS USED I.E SPORT, NORMAL, ECO, SNOW MODES. WHETHER YOU PULL OUT TO PASS ON THE FREEWAY OR,PASS BICYCLE ON A NARROW 2 LANE ROAD, AT RESIDENTIAL SPEEDS, THE TRANSMISSION HESITATES DRAMATICALLY(2-5 SECONDS),ACTUALLY TO THE POINT I DON'T FEEL SAFE WITH THIS VEHICLE. I HAVE TAKEN THE VEHICLE BACK TO THE DEALER 4+ TIMES TO ADDRESS THIS ISSUE,CONTACTED INFINITI CONSUMER AFFAIRS, AND WAS TOLD BY ALL, THAT IT WAS "NORMAL" OPERATION.... WHICH IT IS NOT!!! *TT
#171 of 187 Re: Complaint filed through NHTSA.gov [engine101]
by kirstie_h HOST
May 18, 2012 (8:26 am)
Reporting it to the NHTSA may not be the ONLY way to get it done, but it is by far the best.
#172 of 187 Re: Complaint filed through NHTSA.gov [kirstie_h]
Jun 04, 2012 (6:53 pm)
I have formally filed my complaint through NHTSA.gov.
I suggest others do the same.
Click this link to submit yours.
#173 of 187 Re: Quirky /Jerky 7AT Transmission [sgl1]
Jun 20, 2012 (4:51 pm)
Not sure if this helps, but it looks like Infiniti is finally addressing these issues:
Subject: SB 2011-2012 M37; Shift Responsiveness Issues
Summary of ITB12021:
IF YOU CONFIRM One or more of the following conditions: Harsher than expected down shifts when coasting to a stop. Hesitation/lag when accelerating after coasting. Hesitation/lag or harsher than expected down shifts when coming to a stop and accelerating again (rolling stop). Engine rev matching during moderate to heavy braking. ACTION 1. Refer to step 6 in the SERVICE PROCEDURE to confirm this bulletin applies to the vehicle you are working on. 2. If this bulletin applies, reprogram the ECM and TCM. See this bulletin for further detail.
#174 of 187 Re: Quirky /Jerky 7AT Transmission [ashn888]
Jun 20, 2012 (5:56 pm)
Only a year late....I bought out my m37 lease....leased a Mercedes e350 for less$'s per month and haven't looked back. I love the Mercedes....hated the m37 transmission which I considered unsafe. Hope this solves the problems for those locked into the m37. I won't buy another infiniti...
#175 of 187 Re: Quirky /Jerky 7AT Transmission [ashn888]
Jun 20, 2012 (6:36 pm)
Thanks for posting... This TSB must have just come out as I don't even see it listed at Safercar.gov yet. I'm very anxious to see if they finally fixed it. ...It's hard to believe this was missed when cars were initially handed to Infiniti general managers to drive during initial release of this car two years ago. Come on Infiniti, you can do better than that!..
Anyway, fingers crossed! I'll be back to the dealership very soon and will post results here.