Two problems related to electrical system have been reported for the 2003 Nissan 350Z. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Nissan 350Z based on all problems reported for the 2003 350Z.
It’s the abs module not for sure what exactly is wrong with it but it does not function like it should. Also if you look at other vehicles of the same model just different year why was it changed like a different design entirely. What it does is I don’t get full brake power or pressure like half at this point you stop but it’s a slow rolling stop or something. Makes me believe there was an issue when the car came out and the next year it was changed. For example my car is a 02-03 now some 03-04 manufacturer dates the abs module changed and that’s the only one you can get new still to this year 2026 from the manufacturer and others. This problem occurred in 2024 and was told by the manufacturer or Nissan it’s a discontinued part but they sell the revised part for the 03-04+ model 350z which I think at the time it wasn’t recorded as a safety flaw or they didn’t want to repair the issue.
I own a 350z bought brand new in 2003. I was one of the 1st in baltimore for I did not see another z for six months. I have had a new transmission put in at 36k due to a failing 3rd gear synco and now at 80k the 5th. I am about to put in my 5th window motor in. Nissan does not care about us so don't even waste your time with 1800nissan1. They should feel privileged that we allow japanese to sell cars here in the us and should be penalized when they fail. I will never ever buy a Nissan again and I go as far as getting my Nissan's oil changed at Toyota so I do not promote Nissan any further. Quite a lemon. Tacoma has 90k and only oil changes.