Skip to content

2003 Infiniti FX45: common problems

Owners of the 2003 Infiniti FX45 filed 25 complaints with NHTSA, most often about air bags and exterior lighting. Details by component below, with sources.

Key figures

Owner complaints
25
involving a crash
1

What fails most often

87654321
  1. 1 Air bags 20% of all complaints
  2. 2 Exterior lighting 20% of all complaints
  3. 3 Powertrain 16% of all complaints
  4. 4 Structure 16% of all complaints
  5. 5 Fuel/propulsion system 8% of all complaints
  6. 6 Fuel system 8% of all complaints
  7. 7 Service brakes 8% of all complaints
  8. 8 Electrical system 4% of all complaints
Circle size and colour show each component’s share of NHTSA complaints. Schematic only, not a drawing of the exact model.

Engines and transmissions

US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.

Drive: AWD

Symptoms owners describe

How many of the 25 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).

Components owners complain about

What owners report

Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.

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 7,448 of 36,656 model years in the NHTSA data (top 20% most complained about).

On average one model year of the FX45 has 9 complaints (7 years in the data). This year has 25, above average.

What to check before buying

Other years of this model

Questions and answers

What are the most common problems with the 2003 Infiniti FX45?

Owner complaints to NHTSA most often mention: air bags, exterior lighting, powertrain. Total complaints: 25. The most frequent symptoms in complaint texts: headlights and tail lights (8%), windows, sunroof (8%), A/C or heater (4%).

How many service bulletins (TSB) were issued for the 2003 Infiniti FX45?

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 2003 Infiniti FX45 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 2003 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.