VehicleVerdict

2003 Infiniti M45 engine problems

The 2003 Infiniti M45 has 42 engine complaints filed with NHTSA — 24% of the year's total, and the first year with meaningful reports in this category.

42

Engine complaints

24%

Share of year

0

Crash-involved

1

Related recalls

Engine complaints by year

M45 engine complaints by model year42 complaints2003: 42 complaints2004: 8 complaints2006: 18 complaints2007: 5 complaints2008: 2 complaints
M45 engine complaints by model year. Red bars are years to avoid.

Related recalls

03V455000EngineNovember 17, 2003 · 630,000 units

Defect

ON CERTAIN PASSENGER VEHICLES, THE CIRCUIT BOARD FOR THE CRANK POSITION SENSOR OR CAM POSITION SENSOR MAY HAVE AN IMPROPER SOLDER JOINT DUE TO SOLDER DEFORMATION CAUSED BY HEAT STRESS ACCELERATED BY THE EXISTENCE OF FLUX RESIDUE DURING THE SOLDERING PROCESS.

Consequence

THIS COULD CAUSE THE "SERVICE ENGINE SOON" WARNING LIGHT TO COME ON, CREATE A NO START CONDITION, CAUSE REDUCED ENGINE POWER, OR CAUSE THE ENGINE TO STOP RUNNING WITHOUT WARNING DURING VEHICLE OPERATION, WHICH COULD RESULT IN A CRASH.

Remedy

DEALERS WILL REPLACE THE CRANK POSITION SENSORS. CAMSHAFT POSITION SENSOR(S), AND IN SOME CASES, THE VARIABLE TIMING CONTROL SENSOR(S). VEHICLES INVOLVED IN A PREVIOUS RECALL CAMPAIGN, 01V357, ARE ALSO INCLUDED IN THIS NEW CAMPAIGN. THE REPLACEMENT SENSORS USED IN THAT CAMPAIGN ARE ALSO AFFECTED. OWNER NOTIFICATION BEGAN ON DECEMBER 22, 2003. OWNERS SHOULD CONTACT NISSAN AT 1-800-647-7261 OR INFINITI AT 1-800-662-6200.

What owners report

TL*THE CONTACT OWNS A 2003 INFINITI M45. ON APPROXIMATELY NINE OCCASIONS, THE VEHICLE WOULD COMPLETELY SHUT OFF AND SOMETIMES WOULD NOT RESTART. THE VEHICLE HAD TO BE TOWED TO THE DEALER APPROXIMATELY FOUR TIMES. THEY STATED THAT THE FAILURE COULD BE CAUSED BY THE SHIFT LOCK OR THE FUEL SYSTEM, BUT…

Complaint filed with NHTSA · Engine · April 26, 2004

Common questions

How many engine complaints does the 2003 Infiniti M45 have?

NHTSA has 42 complaints about the 2003 Infiniti M45 engine — 24% of all complaints filed for that model year.

Are there recalls for the 2003 Infiniti M45 engine?

Yes — 1 NHTSA recall campaign for this model year is tied to the engine: 03V455000.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.