2003 Infiniti M45 Electrical System Problems

NHTSA component category: ELECTRICAL SYSTEM · data through 07/12/2026

22Electrical System complaints

17.1%Of all 129 complaints

#3Most-reported category

Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.

How electrical system ranks on this vehicle

FUEL SYSTEM, GASOLINE65 · 50.4%

ENGINE23 · 17.8%

ELECTRICAL SYSTEM22 · 17.1%

ENGINE AND ENGINE COOLING13 · 10.1%

FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM6 · 4.7%

Share of the 129 complaints citing each category; one complaint can cite several. Full breakdown on the 2003 Infiniti M45 overview page.

What owners report

“WHILE I WAS DRIVING THIS VEHICLE, IT HAD SHUT OFF WHILE I WAS DRIVING AND I LOST ALL POWER. IT STARTED BACK UP LIKE NORMAL…”NHTSA complaint 10895802 — filed 08/14/2016

“THE CONTACT OWNS A 2003 INFINITI M45. THE CONTACT STATED THAT THE VEHICLE STALLED AFTER THE CHECK ENGINE WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN…”NHTSA complaint 10714706 — filed 05/05/2015

“MY BOYFRIEND RECENTLY BOUGHT THIS CAR FROM A DEALER THAT GAVE HIM A STANDARD WARRANTY AND WE HAVE HAD THE CAR FOR ABOUT 3 WEEKS…”NHTSA complaint 10575681 — filed 03/30/2014

Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.

Electrical System complaints by year filed

Frequently asked questions

Does the 2003 Infiniti M45 have electrical system problems?

Electrical System is the #3 most-reported problem area on the 2003 Infiniti M45: 22 of 129 complaints on file (17.1%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2003 Infiniti M45 have in total?

129 complaints were on file with NHTSA as of 07/12/2026. Across all categories, 0 involved a crash, 0 involved a fire, 0 reported injuries, and none reported deaths.

What does NHTSA's electrical system category include?

NHTSA assigns each complaint to standard component categories; this page reports the ELECTRICAL SYSTEM category exactly as NHTSA defines and records it.

About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/12/2026.