my car won't go above 20mph

[Ironegg]

Hello all, I am a new 2013 M37x lease owner for less than one month.

While I was driving on normal mode, I noticed a mild forward shift in the transmission which felt odd. Then my car drops to 20 mph, not matter how much i press the gas pedal. The car feels like it's on a sleep mode. And when I try to shift the gear nob to manual, nothing happens. I pulled over and restarted the car, then everything is fine.
This has happened two times so far in one week. I had the car serviced 2 days ago after the first incident and the service rep was very nice, they said that they have "res-flashed the transmission computer". Everything worked fine until yesterday while I was driving.

there were no new warning light on my dash at all.
Has anyone had this problem at all? if so, what and how did you solve it?
I plan to have my car serviced again on Monday, it's just a hassle that I did not expect from getting a car at this price range.

thanks for all your help in advance

[Larz]

Welcome to Nico Club!

I read this forum nearly every day and I don't recall seeing this issue mentioned before. Hopefully, they will look deeper into the issue now that it has happened twice. Let us know how this turns out please.

[CPJ LB]

sounds like your car went into 'limp mode' to protect the engine/transmission until you can get it looked at.

I wonder if disconnecting the negative battery cable will help clear the 'limp mode'....

[antzrus]

"Limp mode..?" Try some of this in the crank case:





...sorry, I couldn't resist...

[Partysan7]

Is that 50 grams or kilos ?

[Partysan7]

OP--> I apologize for a little forum sarcasm, as to your problem from doing a lot reading on this forum on the previous models limp mode was usually caused by sensor failure I believe camshaft. Since you have warranty I would take it to the dealer.

[Ironegg]

I have an update. I had one more of these "limp mode" yesterday evening, and the Service Engine light came on. My car is at the dealer now, they are taking apart the transmission. I was told that they will replace some sort of shift valve or solenoid. It will take a few days.

thanks for your help, I will have another update soon and hopefully with good news.

[Ironegg]

just an update.

The service engine light came on a few days later and I took my car to the dealer. There were a lot of metal shavings and bits in the pan of the transmission when they took it out for inspection. I have been waiting for a new transmission from Infiniti since July 22. And after 5 weeks of waiting in a loaner car, I am pretty fed up with everything. I have already filed a lemon replacement and it was approved yesterday. I am at the point that I need to decide between a replacement M37x (brand new from dealer of my choice) or just a cash refund and get some other car. I was very disappointed in how things were handled with infiniti consumer affair department over all, I felt I had to force them to do everything. i have to ask for financial compensation from infiniti and they did not even bother to offer it to me in the first place.

anyways, thanks for your inputs

[CPJ LB]

damn!! sorry to hear about this issue....especially on a 2013 M...? crazy...just get the new Q50 as your replacement and call it a day.....

I don't think I'd get an AWD M no matter what year....that's just me. If I need an AWD car, I'd look at a different brand....

[finikM35]

Yeah get Q50 i saw one the other day and that thing is beautiful!

[Partysan7]

Sorry to hear about your bad experience Hopefully everything turns out good for you

[White-Rush]

Yeah, what they said.

But sticking to what CPJ LB said; if I had to choose an AWD car, I wouldn't purchase an Infiniti. That's just me. No, I have never driven one, but in the same breath I know I wouldn't be personally interested in driving one either.

Best of luck to you in your decision and please let us know how things pan out for ya.

[milton]

Just got back from the dealer having had the "Service Engine Soon" light come on I too have a 2013 M37 with just 7K miles since Jan. They told me it was a sensor giving a high temp reading. The dealer told me there is a bulletin out on it and all that was required was a software reload fix. Hearing about other transmission problems I have to wonder WTF is going on. I'll start a new thread!