Other electrical problem on the 2003 Infiniti I35
When other electrical problem gets reported
Owners of the 2003 Infiniti I35 report other electrical problem at a median of 145,000 miles. A quarter of the reports come in before 85,000 miles and a quarter after 180,000 miles, from 9 reports that carried an odometer reading.
A part like this is normally expected to survive 85,000 miles. It is the 3rd most-reported problem on this model year.
The mileage distribution
The reported range runs from 75,000 miles at the tenth percentile to 200,000 miles at the ninetieth, a spread of 126,067 miles across the middle 80% of reports.
A spread this wide points at use rather than design. Towing, climate, service history and city mileage all move a failure like this, so the median is a weak guide to any individual car.
0% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 75,533 miles | 84,100 miles | 144,000 miles | 180,293 miles | 201,600 miles |
Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.
What a percentile can and cannot tell you here
These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.
What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.
Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.
What happens, and what it costs
Putting it right typically runs $250–$2,000 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.
The same failure on other years
The same failure is reported on 3 model years of this car. It shows up earliest on the 2002, at a median of 80,000 miles, and latest on the 2003 at 145,000 miles.
By volume the 2002 carries the most reports, with 9; the 2003 has 9. A mode that appears across most years of a model is usually a design choice rather than a bad batch.
If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.
Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens
What owners wrote
Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.
The car suddenly loses throttle control under normal driving conditions; the engine return to "idle speed". I was driving on the expressway and all of a sudden the check engine light came on and the car started slowing down. I pressed on the gas pedal all the way down but the car refused to accelerate. I managed to pull over and stop the engine. And then restarted the car and it seemed to work ok for a while and then did it again. I managed to get it to the dealer and it has been there since while they try to figure out why this is happening. This problem started happening about a year ago. The throttle body has been replaced 4 times in the last year; the throttle body contains the electric actuator for the throttle and the sensors that tell the computer the position of the throttle. I am really concerned about driving the car in traffic because it could suddenly "cut out" and lead to an accident. *tr
I've had the same problems that other infiniti I-35s have experienced in regards to losing power, engine cutting off and lack of braking. My car initially stalled while I was parked at a red light. After a few attempts to restart, it finally did. I made an appointment to see the dealer about this problem four days later. While driving to the dealer, my car engine lights all lit up and the car stalled and I had no braking ability. Fortunately, I was going only about 10 MPH when this happened and was able to pull over to a lane without cars and applied my parking break to stop the car. After five minutes of attempting to restart, it finally did. I was only two miles from the dealer, so I slowly drove it there. They told me the problem was both crank sensors along with the crank shaft. I had them replaced at a cost of close to $1000. It seems to me that if there are so many complaints regarding this problem, it should be looked into as a safety recall issue. If I were going faster, I could have crashed into someone. One week before this happened, I was driving through mountain roads with many twists and turns. If this happened during…
Tl* the contact owns a 2003 infiniti i35. The contact stated while driving approximately 30 MPH, the vehicle stalled with warning. The slip,tcs and engine warning lights illuminated. The vehicle restarted and the failure recurred. The vehicle was currently being towed to an independent mechanic for diagnostic testing. The manufacturer was not notified. The failure mileage was 180,293.
Also reported on the 2003 Infiniti I35
Other engine problem
Stalling while driving
Other speed control problem
Engine sensor failure
Alternator or charging system failure
Other driver assistance problem
How far this goes
Complaints are voluntary, so 9 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.
Questions this page answers
At what mileage does other electrical problem happen on the 2003 Infiniti I35?
Across 9 owner reports that included an odometer reading, half were filed by 145,000 miles. A quarter were filed before 85,000 miles and a quarter after 180,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is other electrical problem on the 2003 Infiniti I35?
9 reports have been filed with NHTSA, about 0.2 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.
What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars
Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed