Acceleration complaints by model year
Which parts fail
Components named in complaints (accelerator pedal, throttle, sudden acceleration, cruise control).
Mileage when the problem started
What owners report
Runaway acceleration. Three times now in the last two weeks the RPMs went to maximum redline without my foot on the accelerator pedal. Fortunately all occurred when I was at very slow speed and either in a driveway or a parking lot. Each time I immediately put the transmission to neutral and shut off the engine. For the first occurrence, Restarting the engine all went back to normal. But for the second instance, two weeks later on restart the engine again instantly went to maximum RPM (deep redline). On a second restart, with additional delay before attempting a restart, the problem cleared. I took the car to a mechanic and they said no error diagnostics were recorded. On test drive he said he noticed some brief unexpected surges. He said for liability reasons no way he would work on the car. No warnings, no instrument indications, car does not seem to "know" throttle is at max redline.
Tl* the contact owns a 2008 Infiniti G35. The contact stated that while turning on the vehicle, the engine revved and the vehicle accelerated without warning. The contact attempted to apply the brakes however, the brakes failed. The brake pedal fell to the floorboard. The contact crashed into a building and the air bags failed to deploy. The vehicle was towed. A police report was not filed. The contact had not taken the vehicle to the dealer. The front-end of the vehicle was severely damaged. There were no injuries. The manufacturer was not made aware of the failure. The approximate failure mileage was 89,000.
2007 Infiniti g35x premium 4dr accident on March 13, 2011 in parking lot of a church; after I parked the car, before changing the car to park and takeoff the seat belt to go to church. The car went out of control; accelerated, and I was unable to stop the car. I tried the brakes ' and it just kept speeding up forward, towards the church building which May have killed the attendees of the church service. I finally tried the steering wheel to the right which worked, hit a tree, a car and van that were parking in front of church and finally stopped the Infiniti. As of now insurance & Infiniti dealer checked and reported the car body damages, did not check any software speed control malfunction. They want me to approve the fixes. I want a true investigation about the speed control issues of this model of Infiniti g35x 2007. …
While driving, my Infiniti g-35 looses engine power and the engine shuts off while driving without notice along with sudden lack of power steering. My service engine light stayed on when I started the vehicle back a short time later. Several cars had to swerve from hitting me. I was able to make it to get a diagnostics and it's saying crankshaft position sensor/ camshaft position sensor. The engine shutting off while driving start happening other times same way. This happened on the expressway and main roads. This could have caused a major accident. My airbag light is also flashing red and highlighted passenger airbag light off in yellow near clock. Engine shutting off due to crankshaft sensor with airbag malfunction. Engine also shuts off at stop lights.
Tl contact owns a 2006 Infiniti G35 sedan. While driving approximately 25 MPH, the vehicle accelerated inadvertently. The driver swerved and crashed into a tree. The driver sustained major injuries to her ribs, sternum, and had stitches in her knee. A police report was filed. The vehicle was destroyed and towed to a junk yard. An automotive engineer inspected the vehicle and informed the contact that there was substantial front end damage, including the engine compartment, caused by the failure of the electronic throttle control system. The throttle control mechanism was crushed between the engine assembly, on which it was mounted, and the firewall. The current and failure mileages were 27,000. Updated 12/08/08. Updated 12/09/08
Tl contact owns a 2006 Infiniti G35 sedan. While driving in reverse out of a parking space driving at an unknown speed the vehicle accelerated, the rpms increased with her feet on the brake pedal. She engaged the brakes with excessive force, the vehicle continued to accelerate, crashed into a pole over a concrete pillar into another then into a vehicle. She stated that there was damage to the front passenger side of the vehicle. The other vehicle had damages to rear right. A police report was filed. The vehicle was repaired. Updated 1/19/2010 updated 04/20/11
Dt*: the contact stated since purchase while traveling various speeds, the engine revs while the brake pedal is depressed, causing the vehicle to accelerate. To eliminate the revving and acceleration, the brake pedal must remain depressed and the engine turned off. The vehicle has been to the dealership multiple times, but the problem could not be duplicated. Once while parking the vehicle, the engine revved and hit concrete steps and another vehicle. During this incident, the vehicle accelerated so fast, the airbags deployed. There was a police report filed at the scene and the contact sustained minor injuries. The vehicle was towed to a salvage yard where it awaits inspection by the insurance company.. Updated 09/06.
Driving 70 mile in fwy my car engine just shut off completely I almost died out there because of cars behind me. I calmly changed steering wheel to right side of fwy with left over speed after 5 of vehicle behind me almost crashed me and each other. Turn off engine and started engine few time and it worked so I sent my car to shop and they said it's a 2 of sensor prob. And while he was moving my car, driver side seat switch button was on fire! Fire! What is going on. I would have been killed out there if not for god. I see a lot of people complained on sensor prob with engine shut off, isn't this dangerous to drive???? Risking all of people's lives????
Frequently asked questions
Which Infiniti G35 years have acceleration problems?
By NHTSA complaints, the 2004 (20), 2003 (12), 2005 (12), 2006 (7) and 2007 (7) model years. Acceleration complaints make up 8% of all complaints for the 2004.
Is there a recall for Infiniti G35 acceleration problems?
No. NHTSA lists no speed control & acceleration recall for any Infiniti G35 model year. A widespread problem may still be covered by an extended warranty or a manufacturer service bulletin, so ask a dealer.
At what mileage do Infiniti G35 acceleration problems start?
Across all years, half of the complaints with a recorded mileage happened before about 60,000 miles; 44% happened before 50,000 miles.
What part fails most often?
Owners most often name the accelerator pedal (6 mentions), followed by the cruise control (2).
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.