One problem related to service engine light on has been reported for the 2003 Infiniti M45. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Infiniti M45 based on all problems reported for the 2003 M45.
I was driving on the highway and all of a sudden my car stalled without warning. Shortly after the service engine light came on. The car restarted only to do that again the next day. It did it another time and didn't restart. Had it repaired by and independent mechanic. 6months later the same problem is bck. Decided to check on the recalls and there was a recall called engine and engine cooling that described my issue to a t but did not include my VIN! this is very dangerous and unsafe. Both times my daughter was in the car.