2009 Infiniti G37 transmission problems

Filed Dec 12, 2022 · Electrical, Engine · CA

I was driving at about 65 mph on the tail end of a roughly 2 hour trip. The car shut off on me completely. Fortunately there weren't many cars on the road, so I was able to force the steering wheel - since power steering went out as well, I needed to turn the wheel forcefully - to the shoulder. The brakes worked ok, but not well, again because the engine shut off, so I was forcing the brakes and they took a lot longer to work than normally. Had there been normal to heavy traffic, I'd definitely have been in a very bad crash. The vehicle is available for inspection if needed. This is the second time this situation has occurred to me in this vehicle. There was no warning lamp, message, or symptom prior to or after the incident. A dealer, manufacturer, police, insurance, nor anyone else has inspected or reproduced the problem. Various Infiniti online forums reference the same issue.

Filed Oct 28, 2021 · Engine, Transmission · MD · crash

My car was slowing down and jerked in and out of first gear ive been having this problem for motnths I looked on infiniti forum and seen itb12-027d and infiniti will not fix my car I almost hit someone car due to the car driving really weird ! And swerved and hit a curb instead this is ridiculous im also reporting this to the bbb as well because plenty of people are reporting this as an issue with this years transmission and engine and they arent doing anything to fix it but throw prices at their customers for the to fix tehe problem themselves

Filed Dec 7, 2019 · Acceleration, Engine · 160,000 miles · VA

Between 40-50 MPH, on a busy rural highway, the car would occasionally (once in 3 months) go into limp mode. This problem is now occurring weekly! You cannot accelerate more 2,000 rpms when this happens. You can manually shift the transmission to a higher gear to get to a safe spot to pull over. However, it feels like the transmission might fall out of the car when shifting. Most of the time, when you cut the car off and restart it, it runs as normal. It's like the computer resets. As of late, I have to cut the car off and restart twice. This is beginning to happen more frequently, like once or twice a week. We have consulted with a dealer, and have tried several recommendations. We have new air filters and mas air sensors. This did not correct the problem. After further investigation, we found a dealership who admitted that they have seen or heard of this problem. The service advisor said that this could be a transmission issue. We have an appointment on 12-13-2019 with this dealership.

Filed Aug 13, 2019 · Engine, Transmission · 117,000 miles · NY

Infiniti needs to recall the timing chain galley gaskets. My 2009 g37xs sedan recently blew the galley gaskets and it seems as if this is a common problem and is a very expensive fix. Recall this issue please I always use 93 gas. Always use mobil 1 full synthetic oil, and always do all maintenance on the car on time. I'm shocked and aggravated that this issue happened and infiniti did not recall it.

Filed May 30, 2019 · Transmission · 74,800 miles · CT

I was on the highway traveling about 60-65 MPH and a truck merged, I slowed then decided to pass as it was a larger type truck and slow to merge, when I stepped on the gas...nothing happened. The vehicle seemed to have gone into neutral like space and I had no gear and I was half in the passing lane. I have an automatic transmission. I took my foot off the gas and it finally appeared to catch, but I thought I was going to crash. I did have shift and lag issues and just got a TCM update 05/25/2019 which appears to have solved the other problems, but I am afraid to pass on the highway because I am not sure if this issue was the same as the lagging at lower speeds and rough downshifting.

Filed Jul 8, 2015 · Engine, Transmission · 59,723 miles · CA

I was coming out from the freeway at the traffic light the car completely shutdown, and it will not start. First I called for aaa to tow it, once he came the driver checked the battery and he told me the battery was fine, then he told me the engine is gone. And then I called the dealer to check if this is a recall, or anything and I was told the power train was expired. I have no indication of any heating, or any engine lights, everything was working fine. I do the maintenance as recommended by infinity book. The this vehicle has low mileage 2009 year made and I don't drive much. I searched online and there are so many people suffer exactly like me.

Filed Aug 26, 2014 · Engine, Transmission · 117,000 miles · NJ

Car buck and stop accelerate. Then will not go in to low gears or six gear.

Filed Aug 20, 2014 · Electrical, Transmission · 28,000 miles · IL

On a cold snowy evening while driving on the highway at about 60mph the car began to violently shake, when I took my foot off the gas pedal the car stopped shaking, when I tried to accelerate the car again began to shake violently. Fortunately I was about 5 miles away from my destination and managed to drive about 25 on a highway. After I reached my destination I powered off the car and let it sit for about 5 minutes, then I powered it on again and tried to accelerate above 30mph which caused the car to shake again. I ended up getting the car towed to the dealership, when I got a call back from the dealership the next day, the mechanic said that the problem was due to a software issue with the car. During the cold weather the air intake was not taking in air correctly which was causing the engine to misfire. I was a bit skeptical about what happened but since then I have not had the issue occur again. Infiniti should make this information known to owners either through a recall or update the software during routine maintenance.

Filed Oct 28, 2013 · Transmission · MD

2009 infiniti g37. Consumer writes in regards to vehicle transfer case problems. *smd the consumer stated for the second time in one year, a problem developed with the transfer case. The dealership indicated, they did not know how the problem developed, or why it occurred again. The consumer was informed the parts were not available in the us and wouldn't become available until mid october.

Filed Apr 9, 2011 · Transmission · 13,753 miles · TX

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.