Airbag warning light or occupant sensor fault on the 2012 Infiniti G37
When airbag warning light or occupant sensor fault gets reported
Owners of the 2012 Infiniti G37 report airbag warning light or occupant sensor fault at a median of 70,000 miles. A quarter of the reports come in before 50,000 miles and a quarter after 85,000 miles, from 9 reports that carried an odometer reading.
A part like this is normally expected to survive 85,000 miles. It is the 1st most-reported problem on this model year.
The mileage distribution
The reported range runs from 30,000 miles at the tenth percentile to 105,000 miles at the ninetieth, a spread of 72,619 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.
22% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 31,400 miles | 47,800 miles | 68,500 miles | 85,327 miles | 104,019 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 $300–$1,600 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 6 model years of this car. It shows up earliest on the 2013, at a median of 35,000 miles, and latest on the 2009 at 72,500 miles.
By volume the 2009 carries the most reports, with 49; the 2012 has 14. 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 airbag light is blinking. I took the car to infiniti and I'm told that the there is a failure code b1018 stored due to internal failure of occupant airbag detection sensor. They are charging $6,653 to replace this part. $348 is labor and the remainder is the part cost. The car has 47,800 miles and is out of warranty by 3 months. Infiniti usa told me that the air bag would not deploy on the passenger side and that I should replace it immediately as it is a safety hazard for passengers which are mainly my children. Due to the fact that this part is priced so far out of reach for most normal consumers, I asked infiniti usa for some consideration as this is my only car. They declined any type of assistance in replacing the part. In other words, its dangerous enough for me to pay almost $7000 to replace it but not dangerous enough for them to help fix it. I was told at the dealership that they are seeing this sensor issue more and more on cars 3-4 years old and that they are not making them like this anymore.
Car battery drained while car was unoccupied (in a garage) for two weeks. After jumping car operated as normal except for airbag light. Infiniti dealer informed me that the airbag diagnostic unit had failed and airbags would not deploy until a $1500 repair was done. Dealer noted that the unit likely failed when the battery was at low power or when jumping (jumped car exactly according to owner's manual).
Also reported on the 2012 Infiniti G37
Other body or interior problem
Sunroof failure or glass breakage
Stalling while driving
Airbag failed to deploy in a crash
Other engine problem
Other speed control problem
How far this goes
Complaints are voluntary, so 14 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 airbag warning light or occupant sensor fault happen on the 2012 Infiniti G37?
Across 9 owner reports that included an odometer reading, half were filed by 70,000 miles. A quarter were filed before 50,000 miles and a quarter after 85,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is airbag warning light or occupant sensor fault on the 2012 Infiniti G37?
14 reports have been filed with NHTSA, about 23 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