Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2004 Infiniti G35 owners, lightly cleaned up (personal details are redacted by NHTSA).
Lock actuators on passenger side have NEVER worked, fuel pump stops working when filling up tank even though not nearly full (have to repush the pump in several times - sometimes it doesn't let me fill up tank totally because it thinks it's full), right headlights fog up and can't be polished, light bulbs went out. Cruise control NEVER worked, a/c stopped working at 77,000 miles, window motor on both doors broke before 75,000 miles
Was maneuvering a gentle right hand curve on a 4 lane city street. The car just simply died. Without the engine running the power steering was nullified and the vehicle wanted to continue in a straight line. Approximately 200 ft. Ahead there was an area with a driveway belonging to the water dept. Which I was able to wrestle the vehicle onto, out of traffic. The car would not restart and aaa was called. It was towed to the garage where the mechanic informed me the cam position sensor was faulty and the vehicle was repaired with a new one. About a year later the same thing occurred again as I was turning a corner. Without power steering or brakes I collided with the vehicle waiting at the light. Fortunately, my speed was 10 to 15 MPH and damage to both vehicles was minimal. The cam position sensor was again, the culprit. Last wed. …
As previously mentioned and depicted copious times on multiple sites, my 2004 G35 (built in 2003 and purchased 11/03 w/ only 43,544 miles) stalls w/o warning. Engine and vdc lights show only after engine stalls. If idle rpms are increased to 1,000, to prevent stalling, the engine idle lopes noticeably. This safety issue has occurred both while stopped (stop lights/signs) and while driving 4 out of the last 4 times driven. Research indicates the fix consists of camshaft position sensor and crankshaft angle sensors. It is patently obvious that regardless of mileage (I.e. 100K+ or in my case 43K miles) the engine will stall, jeopardizing the safety of the driver and passenger(s) resulting from being hit by other vehicles, thereby endangering the occupants of any/all vehicles. …
Recall number r2022 Infiniti recall r3021 there is a recall for some infinitis but not mine but im having the same issues as this recall a failed camshaft position sensor and failed crankshaft position sensor like on the recall above except my VIN did not match the vehicles that were recalled although the dealership told me my vehicle falls into the make model and year of which the recall was made. Out of nowhere my car will shut off at high rates of speed and at low rates of speed without any warning my check engine light comes on as well as other lights and the code is for the crankshaft position sensor faulting and the camshaft position sensors faulting. The car can be in motion at 5mph or even at 70mph and the car will comnpletely die with no control over the vehicle as the sterring wheel locks up completely. …
I recently bought a 2004 infinity g35x for my daughter. It was disclosed at purchase that the 3rd brake light was out but I figured that was not a dealbreaker, I would get the light fixed easily. Well, I contacted our local infinity dealer and was quoted $480 to replace a 6 LED board!! What?? After doing research online I discovered via infinity car forums (g35driver.com, x.infinitihelp.com, nicoforums.com) that this is an extremely common issue with these vehicles. The OEM board is known to be a defective design. This is a federally mandated safety issue! Infinity should be made to recall and repair these bad brake lights. It is the law that these lights be there and working. I sincerely hope someone at your branch will take notice of this issue and force the manufacturer to make it right.
I drove to baltimore from dc and back with no issues, then turned to go into the alleyway behind my home. All of a sudden, the steering wheel locked and would not turn and all the lights on the dashboard came on, including the brake light. My brake pad froze midway down, stopping the car, but not budging, even when I tapped the gas pedal. I put on and off the parking brake, to no avail. I tried to move the steering wheel around, but could not. Then I tried to turn off the car and restart it, but it took me three tries. When I restarted the car, the brake pad started functioning normally again and the car has been normal ever since. Additionally, nothing like this has ever happened before.
Tl* the contact owns a 2004 infinti G35. While driving at approximately 15 MPH, the vehicle stalled. The vehicle was able to restart. The vdcf and the service engine warning indicators illuminated. The failure occurred severals times. The vehicle was driven to an independent mechanic for diagnostic testing. The technician stated that the cam shaft needed to be replaced. The manufacturer was not notified of the failure. The approximate failure mileage was 196,580.
Tl contact owns a 2004 Infiniti G35. The contact stated that while driving at various speeds, the vdc, the slip and check engine warning lights illuminated as the engine stalled. The failure recurred numerous times. The vehicle was taken to a dealer where it was diagnosed that the crankshaft and camshaft position sensors needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 110,000.
Tl* the contact owns a 2004 Infiniti G35. The contact stated that the windshield defroster system, the heating system, and the instrumental panel lighting were inoperable. The contact had to disconnect the electrical system fuse in order for the vehicle to function normally. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 100,000.
Window goes down on its on when try to put it up just comes right down alarm goes on but dnt lock doors dash light cuts off at times when I accelerate vehicle starts off fine 2 seconds later feels like it locks up and just gets sluggish starts running fine come to complete starts and takes off slow lights come on dash vehicle won't start I pull key out ignition put back and starts up fine.
Electrical complaints in other G35 years
Frequently asked questions
How common are electrical problems on the 2004 Infiniti G35?
NHTSA has 41 complaints about the electrical system of the 2004 Infiniti G35, 17% of the model year's 244 complaints.
Is there a recall for 2004 Infiniti G35 electrical problems?
No. NHTSA lists no electrical system recall for the 2004 Infiniti G35, though it has 1 recall for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2004 Infiniti G35 electrical problems start?
Half of the complaints with a recorded mileage happened before about 98,000 miles, and 8% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 0 fires 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.