There are 2 stored owner reports matching the engine leading-label group for the 2011 Infiniti G37 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)Two weeks after having my G37 serviced at the Las Vegas dealership the engine shut down while driving on the freeway at full speed. The car rapidly lost power and speed. The gas peddle was unresponsive and after decelerating, the car would only move forward at very slow speed. A major accident was avoided only through the quick actions of trailing traffic which had to slam on their brakes. After towing back to the dealership they reported the heater hose failed. Their vehicle inspection report provided to me two weeks early reported the heater hoses and connectors where inspected and did not require replacement. When I Questioned this they stated it was a plastic part within the heater hose that failed and they don't check that. I consulted the maintenance manual for the car and at now mileage or time point does infiniti recommend replacing the hose. I have had this car serviced at an Infinity dealership every 7,500 miles since bought new. At no time did they ever recommend replacing the hose. This may be more of a safety issue with Infiniti's service program than the car. But the car computers response to the condition also but driver safety at risk.
AS I WAS WAITING TO CROSS A MAJOR HIGHWAY JUNCTION IN UPPER MARLBORO, MD, I ALMOST HAD A COLLISION AFTER CROSSING THE HIGHWAY DUE TO WHAT I SUSPECT A FAULTY TRANSMISSION WITH HESITATION IN SHIFTING. THERE WAS A SUV WAITING TO TURN AND WHILE I HAD THE RIGHT OF WAY, THEY PULLED OFF AND AS MY CHANCE TO CROSS THE 2 LANE HIGHWAY, THEY DID TOO. I PUNCHED THE GAS AND IN THE MIDDLE OF THE ROAD, THE ENGINE TOOK A FEW SECONDS TO GET INTO GEAR SO I LITERALLY WAS IN THE ROAD OF ONCOMING TRAFFIC THAT WAS DRIVING AT SPEEDS IN EXCESS OF 55+ MPH. IT HAPPENED WITHIN 5 SECONDS BUT AFTER I CROSSED AVOIDING A FRONT AND SIDE COLLISION, I PULLED OFF THE ROAD BECAUSE I WAS SHAKING. OTHER INSTANCES WHILE DRIVING AT HIGHWAY SPEEDS THAT I PULL INTO THE LEFT HAND LANE TO PASS A CAR IN FRONT OF ME AND THE ENGINE IS SLOW TO RESPOND AS IT ACCELERATES FROM A LOW GEAR RESULTING IN A LAGGING SOUND/ READING OF THE TACH JUMPING AROUND AS I'M NEARLY HIT FROM BEHIND BECAUSE THE CARS HESITATION IN ACCELERATING. I'M ALSO HEARING THE ENGINE REV UP WITH NO TAKE OFF, SHIFTING IN DRIVE SPORT (DS) MODE IS NOT RESPONSIVE AND EVEN USING THE PADDLE SHIFTERS ISN'T ANY BETTER. I FEEL THIS CAR IS GOING TO BE A DETRIMENT IF INFINITI DOESN'T ADDRESS THE PROBLEM WITH THE 7 SPEED AT. IT HAPPENS UNDER LIGHT ACCELERATION ON THE 3-4 OR/AND 5-6 UPSHIFT. I EVEN SMELLED THE ENGINE AFTER I GOT OUT OF THE CAR AFTER DRIVING TO THE STORE THAT WAS IN MEDIUM/ LIGHT TRAFFIC ABOUT 20 MINUTES. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.