G Series (V35)
Data covers 4 NHTSA model names
Reliability Score
Complaints by Engine Code
VQ35DE
3.5L 6-cylView details
Complaint Breakdown
Infiniti G Series Unidentified Engine
View details
Complaint Breakdown
Show 1 additional engine variant with limited data
3.7-V6-Gas
3.7L 6-cylView details
Complaint Breakdown
Owner Complaints by System
Complaints owners filed with NHTSA about the Infiniti G Series, counted across every engine. A complaint can name more than one system.
What to check on a used 2003-2006 Infiniti G Series
On a used 2003-2006 Infiniti G Series, the systems with the most NHTSA owner complaints are the electrical system (307), the engine (275) and the exterior lighting (145). Each one has an inspection step below, with counts as of 2026-10-12. A complaint is an owner report, not a confirmed defect, and counts rise with sales.
- Switch on every electrical item in turn: lights, windows, locks, wipers, climate fan, screen and power outlets.Costly repair. NHTSA has 307 owner complaints on the 2003-2006 Infiniti G Series about the electrical system.
- Start the engine cold and listen for the first 30 seconds, then again at idle once it is warm.Costly repair. NHTSA has 275 owner complaints on the 2003-2006 Infiniti G Series about the engine.
- Check every exterior light, the wipers, the washers, the mirrors and the glass.Safety. NHTSA has 145 owner complaints on the 2003-2006 Infiniti G Series about the exterior lighting.
- With the engine cold, check the coolant level and color, then watch the temperature gauge on the drive.Costly repair. NHTSA has 130 owner complaints on the 2003-2006 Infiniti G Series about the cooling system.
- On an empty road, brake firmly from 40 mph with a light grip on the wheel.Safety. NHTSA has 112 owner complaints on the 2003-2006 Infiniti G Series about the brakes.
Recalls (9)
ZF SERVICE IS RECALL CERTAIN CLUTCH KIT ASSEMBLIES, PART NUMBER SX: K70358-01, SHIPPED TO WHOLESALERS AS SERVICE PARTS BETWEEN SEPTEMBER 1, 2010, AND MARCH 8, 2011. THESE SERVICE PARTS ARE INTENDED FOR USE ON MODEL YEAR 2003-2006 NISSAN 350Z AND INFINITI G35 VEHICLES. THE SX: K70358-01 CLUTCH KIT CONTAINS AN OVERSIZED CLUTCH DISC.
NISSAN IS RECALLING CERTAIN MODEL YEAR 2005 THROUGH 2007 INFINITI G35 SEDANS MANUFACTURED FROM MARCH 29, 2004 THROUGH AUGUST 25, 2006 AND INFINITI G35 COUPES MANUFACTURED FROM APRIL 1, 2004 THROUGH MAY 30, 2007. THE WIRE HARNESS CONNECTING THE BELT TENSION SENSOR (BTS) AND THE OCCUPANT DETECTION SENSOR (ODS) CONTROL UNIT UNDER THE FRONT PASSENGER SEAT CAN EXPERIENCE RELATIVE MOVEMENT WHICH CAN CAUSE WEAR AND OXIDIZATION OF THE TERMINALS AND MAY CAUSE INTERRUPTION OF THE SIGNAL.
CERTAIN VEHICLES FAIL TO COMPLY WITH THE "VERTICAL GRADIENT" AND "HEADLAMP PHOTOMETRIC VALUES" REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, 'LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.'
CERTAIN AAI MOTORSPORTS COMBINATION LAMPS SOLD AS REPLACEMENT LAMPS FOR USE ON THE ABOVE LIST PASSENGER VEHICLES. COMBINATION LAMPS NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT."
ON CERTAIN PASSENGER AND SPORT UTILITY VEHICLES, THE FUEL FILLER HOSE MAY CRACK AND RESULT IN FUEL LEAKAGE FROM THE HOSE WHILE REFUELING.
Show 4 older recalls
ON CERTAIN PASSENGER VEHICLES, THE CIRCUIT BOARD FOR THE CRANK POSITION SENSOR OR CAM POSITION SENSOR MAY HAVE AN IMPROPER SOLDER JOINT DUE TO SOLDER DEFORMATION CAUSED BY HEAT STRESS ACCELERATED BY THE EXISTENCE OF FLUX RESIDUE DURING THE SOLDERING PROCESS.
ON CERTAIN SEDAN AND COUPE MODEL VEHICLES, THE BRAKE STOP LAMP SWITCH MAY MALFUNCTION.
CERTAIN SEDANS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." IN THE ASSEMBLY OF THE HEADLAMPS, IT IS NECESSARY TO HAVE A MEANS TO ADJUST THE HEADLAMPS. TAMPERPROOF CAPS TO PREVENT HORIZONTAL ADJUSTMENT OF THE HEADLAMPS ARE THEN INSTALLED. SOME OF THESE VEHICLES ARE MISSING THE TAMPERPROOF CAPS.
ON CERTAIN PASSENGER VEHICLES, THE FUEL HOSE CONNECTION FOR THE OUTLET OF THE FUEL PUMP WHICH IS LOCATED AT THE TOP OF THE FUEL TANK MAY NOT HAVE BEEN PROPERLY ATTACHED WHEN THE VEHICLE WAS ASSEMBLED AND COULD COME LOOSE WHILE DRIVING OR WHEN STARTING THE ENGINE.
All Generations
Alternatives in Compact Sedan
Frequently Asked Questions
What are the most common 2003-2006 Infiniti G Series complaints?
Owners have filed 1,134 complaints with NHTSA about the 2003-2006 Infiniti G Series. The systems they name most often are the electrical system, the engine and the exterior.
Is the 2003-2006 Infiniti G Series a good used car?
That depends on the model year, the mileage and the maintenance history of the car in front of you. Owners have filed 1,134 complaints with NHTSA about the 2003-2006 Infiniti G Series. Check which systems they name most often and whether a recall is still open on that car.
How many NHTSA complaints does the 2003-2006 Infiniti G Series have?
NHTSA has 1,134 owner complaints on file for the 2003-2006 Infiniti G Series as of the latest data pull. A complaint is an owner's report, not a confirmed defect, and counts rise with sales.
What recalls affect the 2003-2006 Infiniti G Series?
NHTSA lists 9 recalls covering some 2003-2006 Infiniti G Series vehicles. Which ones apply depends on the VIN: enter it at nhtsa.gov/recalls to see the open campaigns on a specific car.
What should I check before buying a used Infiniti G Series?
Run the VIN through NHTSA's recall lookup and confirm every open recall has been done. Look hardest at the electrical system, the engine and the exterior, the systems owners complain about most. Ask for maintenance records, have an independent mechanic inspect the car and run a vehicle history report for prior accidents and title issues.
Does the G Series have NHTSA crash test ratings?
NHTSA has not published crash test ratings for the 2003-2006 Infiniti G Series. Not all vehicles are tested each year. For the latest NHTSA safety information, visit nhtsa.gov/ratings.
Data from NHTSA federal complaints database. 1,134 complaints analyzed. Data confidence: high. Last updated: 2026-10-12.