AI Damage2004 Infiniti G35: common problems
Owners of the 2004 Infiniti G35 filed 244 complaints with NHTSA, most often about engine and electrical system. Details by component below, with sources.
Key figures
- Owner complaints
- 244
- involving a crash
- 17
What fails most often
- 1 Engine 18% of all complaints
- 2 Electrical system 17% of all complaints
- 3 Exterior lighting 17% of all complaints
- 4 Service brakes 14% of all complaints
- 5 Air bags 9% of all complaints
- 6 Engine and cooling 9% of all complaints
- 7 Powertrain 9% of all complaints
- 8 Vehicle speed control 8% of all complaints
- Engine: 43 complaints (18% of all), 3 of them with a crash reported by the owner.
- Electrical system: 41 complaints (17% of all), 1 of them with a crash reported by the owner.
- Exterior lighting: 41 complaints (17% of all).
- Service brakes: 34 complaints (14% of all), 6 of them with a crash reported by the owner.
- Air bags: 22 complaints (9% of all), 7 of them with a crash reported by the owner.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 3.5 L · petrol · 6 cyl
- automatic, 5-speed
- manual, 6-speednamed in 4 complaints
Drive: RWD, AWD
Symptoms owners describe
How many of the 244 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 43 | 3 | 0 |
| Electrical system | 41 | 1 | 0 |
| Exterior lighting | 41 | 0 | 0 |
| Service brakes | 34 | 6 | 0 |
| Air bags | 22 | 7 | 0 |
| Engine and cooling | 21 | 0 | 0 |
| Powertrain | 21 | 1 | 0 |
| Vehicle speed control | 20 | 3 | 0 |
| Seats | 14 | 0 | 0 |
| Fuel system | 11 | 0 | 0 |
| Equipment | 10 | 0 | 0 |
| Electronic stability control | 8 | 1 | 0 |
| Fuel/propulsion system | 8 | 1 | 0 |
| Steering | 7 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Car has unintended acceleration that can only be stopped by turning off ignition key. This happens without warning. When stopped and foot on brake car accelerates to top rpm then brake goes to floor resulting in no control of car.
Without the engine running the power steering was nullified and the vehicle wanted to continue in a straight line. Approximately 200 ft. Ahead there was an area with a driveway belonging to the water dept. Which I was able to wrestle the vehicle onto, out of traffic. The car would not restart and aaa was called.
Reporting a sudden acceleration. Came to a stop (traffic light)suddenly the engine roared and the car took off with full speed. Hit a van at the drivers side backwheel area.the car was totalled.
The contact stated that the driver of the vehicle experienced a front-end crash into a tree at 20 mph and the air bags did not deploy. The driver was injured as a result. The vehicle was destroyed. A police report was available. The manufacturer offered no assistance.
However, the driver's side air bag did not deploy in this collision, and while the seat belt restrained me, my arm hit the steering wheel, and I suffered musculoskeletal injuries in this accident. The car has been deemed a total loss.
I stopped my my 2004 infiniti g35 sedan at the end of my driveway, set the parking brake, and got out of the car to retrieve an item left on the ground next to my mailbox. When I walked away from the car, it began rolling.
Lock actuators on passenger side have NEVER worked, fuel pump stops working when filling up tank even though not nearly full (have to repush the pump in several times - sometimes it doesnât let me fill up tank totally because it thinks itâs full), right headlights fog up and can't be polished, light bulbs went…
police were called, fire trucks checked for possible fire hazards. I looked for recalls and or air bag malfuctions for this year make and model but did not find any. Had I not been in the far right lane I could have been in a serious accident. The airbags deploying scared me.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 1,665 of 36,656 model years in the NHTSA data (top 5% most complained about).
On average one model year of the G35 has 169 complaints (8 years in the data). This year has 244, above average.
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Other years of this model
Questions and answers
What are the most common problems with the 2004 Infiniti G35?
Owner complaints to NHTSA most often mention: engine, electrical system, exterior lighting. Total complaints: 244. The most frequent symptoms in complaint texts: stalls while driving (13%), warning lights, check engine (11%), windows, sunroof (7%).
How many service bulletins (TSB) were issued for the 2004 Infiniti G35?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2004 Infiniti G35 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2004 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.