Problems · by component
2003 Infiniti G-Class engine problems
62 owner complaints to NHTSA about the 2003 Infiniti G-Class cite engine, 12% of all 535 complaints for this model year.
Complaints
62
12% of all complaints
Crashes
0
Reported by owners
Fires
1
Reported by owners
Injuries
0
Reported by owners
What owners say about the engine
Verbatim from NHTSA complaints, newest first
“my g35 dies randomly i tried to have nissan in garden city kansas to fix they said they dont work on recalls not safe to drive 3 hours to Wichita kansas im not sure what todo”
“The car engine cuts off / stalls while driving. This has happened multiple times. When driving on highway, the engine stops running, the car loses all power, and it is very difficult to restart the car. I had the car inspected and the local mechanic stated the crankshaft sensor/ camshaft censor is not working properly and he believed this was on recall, but Infiniti stated that my car is not covered. This is extremely dangerous - call stalls in the middle of the road with no power at all.”
“Twice while driving approximately 70 mph on the freeway, the engine shut off without warning and the service engine soon warning indicator illuminated. The vehicle coasted. There was no shoulder to pull over to. I put it in neutral and it restarted. The vehicle was taken to an independent mechanic where it was diagnosed that the camshaft and crank sensor failed. I looked online and saw a recall for the cam shaft and crank sensors for the, 2003 Infiniti G35. However, when I called, I was told that my vin was not included in the recall. The failure mileage was 230,000.”
“TL* THE CONTACT OWNS A 2003 INFINITI G35 SEDAN. THE CONTACT STATED THAT WHILE MAKING A LEFT TURN AT AN INTERSECTION TO THE HIGHWAY THE VEHICLE SEIZED WITH THE CHECK ENGINE WARNING LIGHT ILLUMINATED. THE CONTACT MANAGED TO VEER TO THE SHOULDER OF THE ROADWAY. THE VEHICLE WAS TURNED OFF AND BACK ON OPERATED AS DESIGNED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED AND DETERMINED THAT THE ENGINE FAILED AN NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE RECURRED. THE DEALER (LOUISVILLE INFINITI 8 AUTOCENTER DR, LOUISVILLE, KY 40299 502-499-5075) WAS CONTACTED ABOUT THE FAILURE AND CONFIRMED THAT THE VEHICLE WAS NOT SUBJECTED TO ANY RECALLS. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED. THE FAILURE MILEAGE WAS APPROXIMATELY 23,000. *TR”
“MY CAR WAS GOING GOOD FOR 3 YEARS AND OUT OF NOWHERE IT STOPPED GETTING GAS OR THROTTLE LIKE IT SHOULD AND IT'S BEEN SITTING FOR A WEEK NOW... IMA HAVE TO GET CHECKED OR SOMETHING BUT OUT OF NOWHERE MY CAR WOULD START BUT NOT THROTTLE PROPERLY AND WOULD SLIP AND ALL MY LIGHTS WOULD GO IN MY CAR..”
“TL* THE CONTACT OWNS A 2003 INFINITI G35. WHILE DRIVING AT AN UNKNOWN SPEED, THE VEHICLE BEGAN TO DECELERATE. WHEN THE ACCELERATOR PEDAL WAS DEPRESSED, THE VEHICLE WOULD NOT EXCEED 2 MPH. ALSO, THE BATTERY WARNING INDICATOR WAS ILLUMINATED. THE CONTACT ASSOCIATED THE FAILURE WITH NHTSA CAMPAIGN NUMBER: 03V455000 (ENGINE AND ENGINE COOLING). THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO STATED THAT AN UNKNOWN SENSOR WAS FAULTY. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. A DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS UNKNOWN.”
Showing 6 of 62 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 13, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.