"How reliable is the 2003 Infiniti Fx35?"

"Based on 83 NHTSA complaints, the 2003 Infiniti Fx35 has a median complaint mileage of 85000 miles. The most common issue is AIR BAGS."

"What are common problems with the 2003 Infiniti Fx35?"

"The most frequently reported component in NHTSA complaints for the 2003 Infiniti Fx35 is AIR BAGS, accounting for a significant portion of the 83 total complaints filed."

2003 Infiniti Fx35: Reliability Data

Source: NHTSA — 83 complaints

Total Complaints

85,000mi

Median Mileage

AIR BAGS

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

36,500 25th Percentile

85,000 Median Mileage

118,500 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

AIR BAGS

LATCHES/LOCKS/LINKAGES

ELECTRICAL SYSTEM

STRUCTURE

ENGINE

SEATS

POWER TRAIN

SERVICE BRAKES

UNKNOWN OR OTHER

ENGINE AND ENGINE COOLING

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"THE SEATS ON THIS AND TWO OTHER FX35'S WE OWN FROM INFINITI "ROCK" BACK AND FORTH WHILE DRIVING. THE SEAT POSITION IS NOT STABLE. THIS IS ALSO WIDELY REPORTED WITH THE G35 AND INFINITI CANNOT FIX IT. I BELIEVE IT TO BE CRITICALLY DANGEROUS. THE SWAY BACK TO FRONT IS SUDDEN AND SIGNIFICANT ENOUGH..."

"I HAVE NOT YET HAD AN ACCIDENT BUT I DO NOT UNDERSTAND HOW THIS PROBLEM HAS NOT BEEN RESOLVED. I OWN A 2003 INFINITI FX-35. THE SEAT HAS A ROCKING MOTION TO IT. IT ROCKS BACK AND FORTH WHEN I ACCELERATE AND BRAKE. THE DEALERSHIP SAID THIS IS A PROBLEM THEY ARE RESEARCHING. AFTER 7.5 MONTHS I AM..."

"I AM A CHJILD SAFETY SEAT TECH FOR THE DURHAM FIRE DEPARTMENT. I INSPECTED A CSS INSTALLATION IN ANINFINITY FX 35. I FOUND THE LOWER ANCHOR POINTS VERY DIFFICULT TO GET TO AN NOT VERY PRACTICAL FOR A PARENT TO USE. SEAT WAS INSTALLED COMPLETELY WRONG AND I WAS UNABLE TO INSTALL USING LATCH. UT..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28