2020 Toyota Corolla
This year drew an ordinary 306 complaints for a Toyota Corolla — the model's median is 212. What they were about is the unusual part: 41.5% of them mention valve, against 5.1% across the other years of this generation.
First year of a new generation. The Toyota Corolla was redesigned for 2020. A first year carries problems nobody has found yet, and they are found by the people who buy it — which is worth knowing before you become one of them.
NHTSA opened a defect investigation into this model year.
| Complaints filed | 306 |
|---|---|
| Median for this model | 212 |
| Involving a crash | 22 |
| Involving a fire | 1 |
| Recalls | 3 |
| NHTSA crash rating | 5/5 |
| EPA combined | 33 mpg |
What the complaints were about
- valve — 41.5% of this year's complaints, against 5.1% across the other years of this generation (8.2×).
- coolant — 39.5% of this year's complaints, against 5.6% across the other years of this generation (7.1×).
- bypass — 35.3% of this year's complaints, against 5% across the other years of this generation (7×).
Words owners used for the same problem are counted together, so a fault written four different ways is measured once. Grouped by which complaints they appear in, not by a list anyone wrote in advance.
What owners wrote
Engine Coolant Bypass Valve replacement , Toyota is charging me 888 dollars for repair.
The engine coolant bypass valve is coming up as a code. Around 44k miles. Others have had this problem.
Verbatim from NHTSA complaint filings, with identifying details removed.
Recalls for this year
- 20V682000 FUEL SYSTEM, GASOLINE Fixed free of charge.
- 19V877000 SEAT BELTS Fixed free of charge.
- 23V865000 AIR BAGS Fixed free of charge.
How this was worked out
Every year of the Toyota Corolla was compared against its own history rather than against other cars, which removes popularity and age from the answer — a common car draws more complaints at equal reliability, and an older one has had longer to accumulate them. A year is flagged when it drew at least 2.5× this model's median and at least 50 complaints.
This is a fault record, not a review. Nobody files a federal complaint to say the car was fine, so it shows what tends to go wrong — not whether owners liked it, and not whether it is a good car.
Source: NHTSA complaints, recalls and investigations, retrieved . Look this vehicle up directly on NHTSA's site to check anything here.
Own a 2020 Toyota Corolla? What happened to yours?
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