Other electrical problem on the 2012 Toyota Corolla
When other electrical problem gets reported
Owners of the 2012 Toyota Corolla report other electrical problem at a median of 40,000 miles. A quarter of the reports come in before 5,000 miles and a quarter after 65,000 miles, from 9 reports that carried an odometer reading.
A part like this is normally expected to survive 85,000 miles. It is the 8th most-reported problem on this model year.
The mileage distribution
The reported range runs from 5,000 miles at the tenth percentile to 85,000 miles at the ninetieth, a spread of 81,969 miles across the middle 80% of reports.
When the reports scatter this far, the mileage is telling you about how these cars were driven more than about the part itself.
44% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 5,100 miles | 7,100 miles | 38,000 miles | 65,000 miles | 87,069 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 24 model years of this car. It shows up earliest on the 2020, at a median of 5,000 miles, and latest on the 2021 at 130,000 miles.
By volume the 2010 carries the most reports, with 51; the 2012 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 component/system is known in the industry as electric power sterring(eps). I purchased my new corolla s on 26 march 2012. I traded in my 2009 toyota corolla base that did not have eps. My corolla s was ordered and I waited approx 2 months before it arrived. I did not test drive the 2012 model(I trusted the model) and have never driven a car with eps to my knowledge. Since I am a prior owner of a corolla I can write this with very good credibility. I started noticing this over steerage as I began to drive the car at length and distance and speeds up to and over the limits here in texas. This includes my wife as well. Here on this form I have entered two dates but this has been from day 1. At higher speeds it is much more evident, at lower speeds not as noticeable but now my mind is telling me to be careful. The speed I listed here on this form is only an example I really wanted to just enter all if I could. I get the feeling I have no control over the steering system. It's far too sensitive. I feel I have to hold less the steering wheel to keep from compensating for any slight deviation as the system really does what it's seems…
Approximately 10 working days have past after arbitration of the eps(electric power steering) of my 2012 toyota corolla s in which today in the mail came the denial. I entered into a claim to have don mcgill toyota of houston purchase this car back. Please everyone, the eps system is not a component you have to adjust your level of driving experience to suit theirs. The eps is unsafe and will cause an accident, it's a shame that a death or bloodshed is the only means by which toyota will open their eyes! Sadly though it is often how the consumer at the end of the day has his voice heard.. The steering system on this vehicle can be down right dangerous! You are foolish to buy this car and this is my lesson learned. Heed this warning for anyone wanting to purchase this automobile. I am no longer a loyal toyota customer and the care at which those that represent the automaker afford their customers. I look forward to the day I can rid my hands of this potentially lethal automobile with it's uncontrollable steering system. *tr
Tl* the contact owns a 2012 toyota corolla. The contact stated that the radio failed to function. The vehicle was taken to a private mechanic where it was found that a rodent had breached the vehicle and damaged wires to the electrical components as well as the air bag. The vehicle was repaired. The manufacturer was contacted about the failure. The failure mileage was 7,100. The VIN was unavailable.
Also reported on the 2012 Toyota Corolla
Airbag inflator rupture
Other steering problem
Other body or interior problem
Airbag warning light or occupant sensor fault
Seat belt or retractor failure
Airbag failed to deploy in a crash
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 2012 Toyota Corolla?
Across 9 owner reports that included an odometer reading, half were filed by 40,000 miles. A quarter were filed before 5,000 miles and a quarter after 65,000 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 2012 Toyota Corolla?
9 reports have been filed with NHTSA, about 0.1 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