Cruise Control Problems of Infiniti G35

When using cruise control and going downhill there is a constant braking feeling that makes the ride feel jerky. Never experienced this on any other vehicle. Spoke with other owners and they have same experience and dea;er advised nothing can be done. Sunroof is very noisy when opened at highway speeds. The flap that pops up when the roof is opened is the culprit. When you hold down with your hand it is much quieter.

See all problems of the 2007 Infiniti G35 🔎.

While traveling on the hwy the cruise control on my vehicle dis-engaged numerous times on its own. To ensure that I was not inadvertently touching the brake I pulled my feet back from the brake until it occured again. The vehicle was taken to the dealership where they said there was nothing wrong with the car.

See all problems of the 2004 Infiniti G35 🔎.

Vehicle had issues with not wanting to accelerate faster than 5 mph. Towed vehicle to dealership, they stated it was a pinched cruise control ground wire and fixed it under warranty. Vehicle operated fine for one week, had the same problem. Towed vehicle back to dealership. This time was told that the ecu and wiring harness needed to be replaced due to it getting wet from a grommet that was loose due to a aftermarket electronics wire under it. Not covered under warranty. Have not had vehicle for ~5 weeks and no loaner car was provided. Upon questioning Infiniti about why the delay, I was told that apparently they needed to replace the wiring harness and none were available. This is because apparently the 2003. 5 G35 coupe has a different harness than the 04 G35 coupe. Was told japan had to specially make a harness and ship it. Will not get harness till the 20th of March. Problem was that dealership should have caught the problem with the first trip there. Had that been caught I would not be paying ~3000. 00 and with out a car for 5 weeks. Upon trying to discuss options with service manager I was told that they would go to court, and that they would win because they have more money than I do.

See all problems of the 2003 Infiniti G35 🔎.

I have a 2004 GS sedan with about 2000 miles on it purchased in October 2003. In the last few days I have had three occasions when the accelerator floor boarded itself with no action on my part to cause such behavior. On one occasion the car was in cruise control at about 60, and accelerated to 90 before I could get the car under control. Pushing the brake pedal did not disengage the action. The second time the car was in cruise control at about 50 and the same thing happen as I gently pressed the accelerator to pass a car. The accelerator unexpected went to the floor, with resultant very sharp acceleration. This time I had to turn the ignition off, and coast to the side of the road. The car would not start since the accelerator was floorboarded. Finally got the accelerator to break lose by using the edge of my shoe sole and the car would restart, and then behaved normally for a period of time. The third time I was not in cruise control, had slowed for an exit ramp, and then gently pushed the accelerator to speed up. Again the accelerator floorboarded itself, with very sharp acceleration. I disengaged the behavior by again lifting the accelerator with the edge of my shoe. One could feel a pop each time the accelerator was lifted with the shoe. Took the car to the dealer who has now had it five days. Says he has not seen this behavior and his position is that unless he can replicate it himself there are no repairs to make. I will not take car back until dealer signs a letter validating that I consider the car unsafe to drive and that he will assume any liability for accidents related to the problem. Expect that this will lead to an impasse with the dealer.