Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2007 Infiniti G35 owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2007 Infiniti G35. The contact stated that the key was inoperable. The vehicle failed to move into the accessory position. The contact called a locksmith, who was unable to assist. The cylinder lock was fractured. The contact obtained a part from a junkyard. The vehicle was taken to an independent mechanic, where it was diagnosed, and determined that the ignition cylinder and the air bag module needed to be replaced. The contact discovered that the air bag module had been disconnected. The local dealer was not contacted. The vehicle was not diagnosed or repaired, rendering it inoperable. The manufacturer was not contacted. The failure mileage was approximately 55,000.
I was at stop light and G35 jolted. At the next light the car completely turned off and all the power of the car went dead. Nothing was lit at all. Had a power boost with jumper cables and the car started right up. Luckily I was a few blocks away from the house, but it was scary since my kids were in the car and the car turned off crossing the intersection. The car turns on, but I am not trusting in driving it anywhere. There is not check engine light on or warning. I was told battery was fine a C1109 code came up, stating low voltage. Possible issues with the ABS or crank position sensor, which under o1v357 recall, these cars were impacted, but this Infiniti was not included, and it should have been. I exclusively took auto to Infiniti for maintenance until around 2018 and I never had them mention anything to me about these issues.
My gas gauge doesn't read correctly, I've replaced the required parts that should have fixed the problem but it still doesn't read right, after some research I found it was a cluster problem and so I don't ever know how much gas I have, I ran out of gas on the road and was stranded for 2 hours waiting for help this is not safe and it is very terrifying to not know where the gas level is at. The vehicle also doesn't take gas correctly. Every pump clicks the fuel shut off every 2 seconds. I'm sure it's related to my gas gauge
I am having issues with the fuel system, gas gauge doesn't read correctly, my car doesn't allow me to put in more than $2 of fuel every few minutes, I have been stranded on the road twice now because the gauge doesn't read correctly, I have replaced everything to replace and the problem still persists, This is unsafe and very unfortunate to have to deal with
On 5 different occasions now the rear passenger window went down on it's own without me touching the switch and when I go to put it back up it will not go. I have to unplug the battery wait 30 seconds and then plug it back for it to work. After the second time that it happened I went to the car shop and they charged me $700 to fix the motor then 2 weeks later it happened again. The fifth time and final straw that it happened was today on 6/12/2020 when I had my 1 year old daughter in car on the highway doing 70 on the interstate and it went down and all that wind hit her face and she starts crying and I cant do anything about it because there is no shoulder where I was at and it was another 10 minutes before the next exit so now I am making a complaint for it now.
I own a 2007 Infiniti G35 coupe. In August 2013, while driving at approximately 40 MPH, the engine stalled without warning. This occurred in the middle lane of I-95 rush hour traffic. The power steering was out as well but I was able to pull my car to the shoulder. The vehicle was unable to restart after multiple attempts and was towed to the a repair facility. They were able to start the car with next morning without issue. Ran diagnostics and no code was indicated. The approximate failure mileage was 80,000. In July 2014, while increasing driving speed from approximately 20 MPH - 30 MPH, the engine stalled without warning and the power steering failed as well. The vehicle was able to restart after multiple attempts.
Tl* the contact owns a 2007 Infiniti g35x. The contact stated that the air bag warning indicator illuminated. The vehicle was taken to george harte Infiniti (1076 s colony rd, wallingford, ct 06492, [phone]) where it was diagnosed that the occupant classification system control unit needed to be replaced at the cost of $5,500 for parts and labor. The vehicle was not repaired. The vehicle was not included in NHTSA campaign number: 08V521000 (air bags, electrical system). The manufacturer was informed of the failure. The approximate failure mileage was 86,000.
Tl* the contact owns a 2007 Infiniti G35. The contact stated that the passenger side air bag off indicator illuminated. The vehicle was not included in NHTSA campaign number: 08V521000 (air bags, electrical system). The vehicle was taken to Infiniti of thousand oaks (3570 thousand oaks blvd, thousand oaks, ca 91362), but was not diagnosed or repaired. The manufacturer was notified. The failure mileage was 63,000.
Tl* the contact owns a 2007 Infiniti G35. The contact stated that the air conditioner did not operate as intended. Only cold air emitted and could not be turned off. In addition, the vehicle brakes independently applied and the vehicle experienced a loss of power. The dealer was not contacted. The manufacturer was notified and did not assist. The failure mileage was 126,000.
11/28/2019: the navigation system/center stack reset and immediately after all the dash lights lit up and the vehicle went into limp mode. The vehicle was blocks away from home and we were able to drive it back without issue. Took it to an Infiniti dealer who said it was transmission related. Repairs were declined as this did not sound accurate and I wanted a second opinion. Transmission shop looked it over and found nothing wrong with the transmission. An independent shop also looked it over and could not find anything wrong. 7/1/2020: the center stack turned off and back on and car engine died. The vehicle was pulled over. Most warning lights were on and the air conditioning was on full blast and couldn't turn it off. Tried to turn the car off and it wouldn't turn off. The engine kept running. …
Related recalls
Electrical system › Software
Nissan is recalling 204,361 my 2007-2008 altima, altima hybrid, 350z, 350z roadster, my 2008 altima coupe, rogue, my 2009 murano, and Infiniti my 2007-2008 g35 sedan, my 2008 g37 coupe and ex35 passenger vehicles equipped with continental automotive systems' occupant classification system (ocs) control units.
Remedy: Dealers will test the signal between the ocs and acu systems using a special tool to check that it is functioning as designed.
Electrical complaints in other G35 years
Frequently asked questions
How common are electrical problems on the 2007 Infiniti G35?
NHTSA has 20 complaints about the electrical system of the 2007 Infiniti G35, 17% of the model year's 115 complaints. The component named most often is ignition › switch (1 mentions).
Is there a recall for 2007 Infiniti G35 electrical problems?
Yes — NHTSA recall 08V-521 (software, Oct 7, 2008). Recall repairs are free at authorized dealers.
At what mileage do 2007 Infiniti G35 electrical problems start?
Half of the complaints with a recorded mileage happened before about 80,000 miles, and 14% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 1 fire and 0 injuries to electrical system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.