AtWhatMileage
Engine · 6 owner reports

Misfire or rough idle on the 2023 Toyota Corolla

Only 0 reports for this mode came with an odometer reading, which is too few for percentiles to mean anything. The page is here because someone linked to it; treat the figures as anecdotes, and see the full report for this year instead.

Reports of this failure 6
With an odometer reading 0
Reports per 1,000 built 0.6 per 1,000
Filed below 36,000 miles 0%
Mention a crash, fire or injury 0
Typical repair $250–$1,600
What it means when it happens Moderate
Rank among this year's problems 5th

When misfire or rough idle gets reported

There are 6 reports of misfire or rough idle on the 2023 Toyota Corolla. That is too few to place the failure on the odometer with any confidence.

It is the 5th most-reported problem on this model year.

None of these reports included an odometer reading, so there is no mileage distribution to show. NHTSA's form does not require the field.

What happens, and what it costs

Putting it right typically runs $250–$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, every year of the Toyota Corolla

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.

Median
  1. 2000 Toyota Corolla misfire or rough idle 54k
  2. 2001 Toyota Corolla misfire or rough idle 55k
  3. 2006 Toyota Corolla misfire or rough idle 70k
  4. 2008 Toyota Corolla misfire or rough idle 82k
  5. 2009 Toyota Corolla misfire or rough idle 2k
  6. 2011 Toyota Corolla misfire or rough idle 11k
  7. 2012 Toyota Corolla misfire or rough idle
    no odometer readings given
    —
  8. 2013 Toyota Corolla misfire or rough idle
    no odometer readings given
    —
  9. 2019 Toyota Corolla misfire or rough idle
    no odometer readings given
    —
  10. 2020 Toyota Corolla misfire or rough idle 29k
  11. 2023 (this one)
    no odometer readings given
    —

Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens

Also reported on the 2023 Toyota Corolla

How far this goes

This page is kept out of search results because 6 reports is not enough to publish percentiles from. It stays reachable because somebody looking at this exact car would rather see the reports than be told there are none.

Complaints are voluntary, so 6 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.

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