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Problems with 2003 Infiniti Q45 ELECTRICAL SYSTEM

On average, the 2003 Infiniti Q45 starts to “feel” problems with the ELECTRICAL SYSTEM and its various aspects after 90 667 miles.

Recently reported ELECTRICAL SYSTEM problems on 2003 Infiniti Q45

Tl* the contact owns a 2003 infiniti q45. while driving various speeds, the engine stalled without warning and all power was lost. after several attempts, the vehicle was able to restart. the failure recurred randomly. the vehicle was taken to a dealer where the failure could not be determined. the vehicle was not repaired. the manufacturer was notified of the failure. the failure mileage was approximately 61,000. updated 11/29/16*lj the consumer has since traded the vehicle. updated 12/06/16.*jb

I have a 2003 q45 and the car has shut off while driving several times. there is has in the car. i get it maintenance regularly. its shut off while driving on the highway putting my family at risk. its not safe to drive. after doing online searches i determined that a lot of people are having this same issue with this make and model. please research this issue because i am terrified to drive this car. if there is an issue with electronic chip, infiniti should have to replace it. thank you *tr

My 2003 infiniti q45 repeatedly stalls [so far, 15+ times] and often will not restart [10+ times]. with my family and me in the car, the stalling of the car puts us repeatedly in jeopardy of a rear-end collision or vandalism or bodily injury in dangerous areas. the car is properly maintained on its service schedule. it took my mechanic a week at a cost of $90 to confirm that the problem is the engine control module [ecm], the 'brain' of the car which controls other vehicle sensors, and this was confirmed by the infiniti dealer at a cost of $150. the ecm was sent to texas for reconditioning and reprogramming, but is being returned because the ecm is irreparable. the cost to buy and reprogram a new ecm from infiniti, the only source, is $2000 for a vehicle with 100,000+ miles. but a new ecm will likely have the same problems as the ecm being replaced. i do not want to put my family in repeated jeopardy. there is no assurance that the new ecm will work properly. i am suspicious that the infiniti ecms contain numerous design flaws. i have had numerous problems, aside from stalling, with the existing ecm, including door locks automatically locking with the key in the ignition so that i am locked out, the locks not unlocking, etc both my mechanic and infinity were unable to diagnose these problems until it became clear that i had a malfunctioning ecm. there was a recent massive recall of nissan and infiniti ecms, but the infiniti q45 was excluded, even though the symptom of repeated stalling is identical to my car, except that, worse, i also often cannot restart the vehicle. *tr

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