Problems · NHTSA complaints

2003 Infiniti G-Class problems

Owners filed 535 complaints about the 2003 Infiniti G-Class with NHTSA between Oct 2002 and Sep 2026. The most-cited component is electrical system (220).

Complaints
535
Filed with NHTSA
Crashes
15
Reported by owners
Fires
5
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. Electrical system220
  2. Visibility68
  3. Engine and engine cooling67
  4. Engine62
  5. Exterior lighting55
  6. Equipment49
  7. Service brakes, hydraulic43
  8. Power train22
  9. Air bags18
  10. Seats17
  11. Vehicle speed control12
  12. Visibility/wiper11
  13. Suspension9
  14. Fuel/propulsion system8

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
20022
200348
200419
20059
200611
200714
200823
200944
201084
201175
201264
201326
201435
201519
201618
201710
20185
201911
20207
20212
20222
20233
20242
20251
20261

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

Electrical system

220 reports3 crashes3 fires
“Complete center console not working. Stuck on auto a/c with no way to defrost windshield and it was raining. No modes work, no cd, no radio, no heat, no defrost- front or rear. I have already had this happen before, replaced motherboard and it cost me 1200.00 and that was in 2011. Now it has happened again. This is very unsafe. I had my children with me and it started raining and we couldnt get the windshield or rear to defrost so I couldnt see. Why arent all 2003's covered under the recall?????”
Owner complaint to NHTSAFiled Nov 18, 2022Electrical systemODI 11494077

Visibility

68 reports1 crash
“SINCE I BOUGHT MY G35 COUPE, I'VE BEEN HAVING PROBLEMS WITH MY DRIVER SIDE WINDOW, CURRENTLY STOPPED WORKING, IT WOULDN'T GO DOWN. IT WOULD BE MY 4TH TIME I REPLACED WINDOW MOTOR, IS NOT CHEAP. OUT OF NOWHERE MY WINDOW GO DOWN WHEN IS CLOSED, WATER GETS IN WHEN RAINING. THEN WHEN FINALLY I GET TO CLOSE THE WINDOW, IT WOULD NOT GO DOWN. INFINITI NEEDS TO MAKE THIS PROBLEM AN OFFICIAL RECALL AND REPLACE ALL THE WINDOW MOTORS. I LOVE MY CAR, I DON'T KNOW WHAT ELSE TO DO. I CANNOT AFFORD PAYING FOR NEW WINDOW MOTOR. PLEASE HELP ME AND ALL INFINITI OWNERS. THANKS *TR”
Owner complaint to NHTSAFiled Oct 16, 2014VisibilityODI 10648219

Engine and engine cooling

67 reports1 crash1 fire1 related recall
“AS I WAS ACCELERATING TO ACCESS HIGHWAY, I WAS NOT ABLE TO ACCELERATE MY VEHICLE. IT WAS AS IF I WAS RUNNING OUT OF GAS. I KEPT PRESSING THE GAS PEDAL AND IT SLOWLY STARTED TO ACCELERATE AND SEEMED FINE. A FEW MINUTES LATER WHEN I WAS SITTING AT A RED LIGHT, THE CAR DIED. I PUT IT IN PARK AND RESTARTED AND IT WAS FINE. A FEW DAYS LATER THE SAME THING HAPPENED AS I WAS IN THE CARPOOL LINE AT MY DAUGHTER'S SCHOOL. CAR WAS RUNNING, WHILE I WAITED AND IT SUDDENLY SHUT DOWN. WHEN I RESTARTED, THE CHECK ENGINE LIGHT WAS ILLUMINATED AND REMAINED ON. I CHECKED MY MANUAL AND THOUGHT IT COULD BE THE GAS CAP WASN'T ON TIGHT ENOUGH OR BAD GAS. FILLED UP MY TANK AND A FEW HOURS LATER CHECK ENGINE LIGHT WENT OUT. TODAY THE CAR DIED AS I WAS PULLING INTO MY DRIVEWAY, HOWEVER IMMEDIATELY RESTARTED. RESEARCHED RECALL INFORMATION AND CONTACTED INFINITI AND WAS TOLD MY VEHICLE WAS NOT PART OF NHTSA CAMPAIGN NUMBER 03V455000. *TR”
Owner complaint to NHTSAFiled Aug 30, 2014Steering, Engine and engine cooling, Vehicle speed control, EngineODI 10629621

Engine

62 reports1 fire
“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”
Owner complaint to NHTSAFiled Aug 21, 2025Engine, Fuel/propulsion systemODI 11682283

Exterior lighting

55 reports3 related recalls
“The contact owns a 2003 Infiniti G35. The contact received notification of NHTSA Campaign Number: 03V200000 (Exterior Lighting); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact was informed that the parts needed for the recall repair had been discontinued. The contact had not experienced a failure. Parts distribution disconnect.”
Owner complaint to NHTSAFiled Oct 1, 2024Exterior lightingODI 11617513

Equipment

49 reports
“TL* THE CONTACT OWNS A 2003 INFINITI G35. UPON STARTING THE VEHICLE, THE CONTACT NOTICED THAT THE AIR CONDITIONING SYSTEM AND RADIO FAILED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 80,000. UPDATED 09/21/15*LJ”
Owner complaint to NHTSAFiled Jul 15, 2015Electrical system, EquipmentODI 10734304
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.