Automatic Transmission Problems of Infiniti G37

Pulling into parking stall (brakes applied / traveling 5-10 mph) the car lurched forward twice and stuck a parked full size truck. The car bounced backwards and lurched forward again and stuck the truck a second time and bounced backwards again. The ( off button) was able to be pushed at that time. The brake was fully applied the entire time. This has been the only occurrence. Infinity has not been able to duplicate problem and has downloaded the data base. The formal report will take approx. 4 weeks to complete. No parts have been replaced. Infinities consumer's affair has told us to pickup the vehicle and drive the vehicle despite no explanation or written proof the vehicle is safe to drive. The problem is related to either braking, acceleration or both.

See all problems of the 2009 Infiniti G37 🔎.

2009 Infiniti G37x coupe. 1st gear is exceptionally slow and causes dangerous acceleration problems in certain situations. The transmission jerks when up or down shifting. When I took my car to Infiniti for service I was told that Infiniti hasn't released a software update or recall for this problem yet but that they've been receiving numerous complaints about the problem.

There is a problem with my transmission in my Infiniti 2009 G37 sedan journey. It accelerates on it's own. It happens about once or twice a week. I have taken it to the dealership, they said they did what they could. It got a little better, but the problem still persists.

After driving the car for a while and then turning it off for 30 min-1hr, the transmission will surge 200-250 rpm the first time the car is driven again. The surge happens only the first time while shifting from 3rd gear to 4th gear. To date, this has not caused an accident. The engine has consistently performed like this since its purchase in February 2009. I first reported the issue to sewell Infiniti, houston, TX on 9/25/09 and to west houston Infiniti on 10/14/09. I have reported the issue another 6 times in addition to the two listed above. However, both dealerships claim that they cannot replicate the issue; therefore, they have not fixed the problem. On 12-22-10, Infiniti issued itb10-075 to correct the problem. When I presented the itb to sewell Infiniti on 3-26-11, they stated that they would review it. I was told later that the itb would have applied to my car except that one part was one letter off. I called Infiniti customer support and was told that Infiniti is not going to do anything further to correct the issue since the dealership cannot replicate the problem.

After driving the car for a while and then turning it off for 30 min-1hr, the transmission will surge 200-250 rpm the first time the car is driven again. The surge happens only the first time while shifting from 3rd gear to 4th gear. To date, this has not caused an accident. The engine has consistently performed like this since its purchase in February 2009. I first reported the issue to sewell Infiniti, houston, TX on 9/25/09 and to west houston Infiniti on 10/14/09. I have reported the issue another 6 times in addition to the two listed above. However, both dealerships claim that they cannot replicate the issue; therefore, they have not fixed the problem. On 12-22-10, Infiniti issued itb10-075 to correct the problem. When I presented the itb to sewell Infiniti on 3-26-11, they stated that they would review it. I was told later that the itb would have applied to my car except that one part was one letter off. I called Infiniti customer support and was told that Infiniti is not going to do anything further to correct the issue since the dealership cannot replicate the problem.