Problems · NHTSA complaints

2006 Infiniti G-Class problems

Owners filed 145 complaints about the 2006 Infiniti G-Class with NHTSA between Feb 2006 and Feb 2025. The most-cited component is engine and engine cooling (21).

Complaints
145
Filed with NHTSA
Crashes
7
Reported by owners
Fires
1
Reported by owners
Injuries
5
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Engine and engine cooling21
  2. Air bags20
  3. Exterior lighting20
  4. Electrical system16
  5. Engine14
  6. Structure11
  7. Power train11
  8. Fuel/propulsion system7
  9. Seats7
  10. Vehicle speed control7
  11. Service brakes, hydraulic6
  12. Electronic stability control (esc)4
  13. Steering4
  14. Visibility4

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Oct 30, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20064
200717
200810
20094
201013
201112
201211
201313
201418
201511
20169
20178
20182
20195
20205
20211
20220
20231
20240
20251

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Engine and engine cooling

21 reports
“TL* THE CONTACT OWNS A 2006 INFINITI G35. WHILE TRAVELING APPROXIMATELY 30 MPH, THE VEHICLE SUDDENLY STALLED AND THE SERVICE ENGINE WARNING LAMP, SLIP WARNING LAMP, AND VDC OFF WARNING LAMP ILLUMINATED. THE CONTACT WAS ABLE TO PULL THE VEHICLE OVER, TURN OFF, AND RESTART THE VEHICLE. THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 03V455000 (ENGINE AND ENGINE COOLING). THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE IT WAS DIAGNOSED THAT THE CRANK (CAMSHAFT) POSITION SENSORS NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 161,218.”
Owner complaint to NHTSAFiled Jun 23, 2015Engine and engine coolingODI 10726807

Air bags

20 reports4 crashes
“AIR BAG LIGHT IS FLASHING ON DRIVERS SIDE. HORN QUIT WORKING A YEAR AGO AND INFINITY DEALERSHIP IN TULSA OKLA ALWAYS CHECKS ON THE MAINTENANCE FORM THAT THE HORN WORKS.... I GET THE CAR SERVICED AT JACKIE COOPER INFINITY, TULSA OKLA.EACH TIME THE OIL NEEDS CHANGING. I HAVE BROUGHT THIS UP TO THE SERVICE MGR. SERVICE ADVISOR INFORMED ME THERE'S NO RECALL ON MY CAR. BUT RECALL WEBSITE SAYS DIFFERENT. I JUST WANT THE TRUTH.”
Owner complaint to NHTSAFiled Feb 18, 2019Air bags, Unknown or otherODI 11180834

Exterior lighting

20 reports
“THE THIRD BRAKE LIGHT THAT SITS IN THE WINDOW DOESN'T NOT LIGHT WHEN BRAKES ARE APPLIED WHEN POWER WAS ATTACHED TO THE LIGHT IT WORKED BUT NOT WHEN PLUGGED IN TO THE HARNESS IN THE CAR THE TAIL BRAKE LIGHTS WORK HOWEVER”
Owner complaint to NHTSAFiled May 1, 2017Electrical system, Exterior lightingODI 10981627

Electrical system

16 reports
“The fuel gauge in my Infiniti G35x is malfunctioning and does not show the correct fuel levels. As a result, my vehicle has unexpectedly run out of fuel multiple times, causing it to stop on the side of the road. This poses a significant safety risk as it can lead to sudden and dangerous situations for both myself and other drivers. Stopping on the side of the road in such conditions can also result in potential traffic violations. This issue needs to be addressed to ensure safer driving.”
Owner complaint to NHTSAFiled Feb 20, 2025Electrical systemODI 11643935

Engine

14 reports
“MY 2006 INFINITY G35 MANUAL TRANSMISSION HAS 86,000 MILES AND HAS EXCESSIVE OIL CONSUMPTION. I PUT 3 QUARTS OF OIL IN AFTER JUST 700 MILES OF DRIVING. I TOOK IT TO THE DEALERSHIP FOR AN OIL CONSUMPTION TEST. THEY CONFIRMED THAT THERE ARE NO LEAKS. THEY PERFORMED AN OIL CHANGE AND PLACED DYE IN THE OIL. I'M TO TAKE IT BACK AFTER 500 DRIVING MILES. THERE ARE MULTIPLE COMPLAINTS ON THE INTERNET REGARDING THIS EXACT ISSUE; HOWEVER, TO DATE, NISSAN HAS NOT ISSUED A RECALL. THIS IS COMPLETELY UNACCEPTABLE. I HAVE TAKEN EXCELLENT CARE OF MY CAR AND NOW THIS - NO SUPPORT FROM NISSAN. PLEASE NHTSA HELP!”
Owner complaint to NHTSAFiled Aug 12, 2019EngineODI 11243381

Structure

11 reports1 crash
“WHILE I WAS TRAVELING ON THE HIGHWAY AT 70MPH, THE GLASS FROM MY SUNROOF FLEW OFF OF MY VEHICLE ONTO ON COMING TRAFFIC. THERE IS NO ACTIVE RECALL FOR THIS AND IT SEEMS THAT MAY OTHER PEOPLE HAVE HAD THIS SAME ISSUE.”
Owner complaint to NHTSAFiled Dec 19, 2020Electrical system, StructureODI 11384169
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 30, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.