2020 Toyota Corolla Engine Problems
Owners have filed 111 complaints with NHTSA about engine problems on the 2020 Toyota Corolla, 36% of all complaints for this model year. Half of the reports with a mileage happened before 10,000 miles. The words owners use most often: “bypass valve” (65% of reports).
- 111engine complaints
- 10,000median miles at failure
- 1mention a crash
- 1mention an injury
- 0related recalls
- $850typical repair cost reported by owners
- 30%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Bypass valve: mentioned in 72 of 111 complaints (65%)
- Engine maintenance required: mentioned in 45 of 111 complaints (41%)
- Visit your: mentioned in 9 of 111 complaints (8%)
- Faulty coolant: mentioned in 6 of 111 complaints (5%)
How much does it cost to fix?
Owners who wrote down what they paid or were quoted put the typical engine repair on the 2020 Toyota Corolla at $850, and half of them between $710 and $940.
Based on 16 NHTSA complaints about this problem alone that state a repair bill or quote (2023–2025), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.
At what mileage do engine problems happen?
Based on 8 complaints that reported the odometer reading.
How serious are the reports?
Of 111 complaints, 1 mention a crash, 1 a fire, 1 an injury.
Toyota Corolla engine complaints by model year
| Model year | Engine complaints | Share of that year | Median miles |
|---|---|---|---|
| 2026 Corolla | 1 | 6% | — |
| 2025 Corolla | 2 | 6% | — |
| 2024 Corolla | 6 | 9% | 27,000 |
| 2023 Corolla | 13 | 18% | — |
| 2022 Corolla | 14 | 14% | 53,500 |
| 2021 Corolla | 41 | 22% | 17,900 |
| 2020 Corolla | 111 | 36% | 10,000 |
| 2019 Corolla | 39 | 19% | 9,590 |
| 2018 Corolla | 15 | 11% | 18,945 |
| 2017 Corolla | 10 | 6% | 26,096 |
| 2016 Corolla | 13 | 6% | 60,000 |
| 2015 Corolla | 17 | 8% | 11,606 |
| 2014 Corolla | 18 | 7% | 26,339 |
| 2013 Corolla | 16 | 8% | 20,650 |
| 2012 Corolla | 4 | 1% | 38,000 |
| 2011 Corolla | 19 | 3% | 15,175 |
| 2010 Corolla | 33 | 3% | 62,523 |
| 2009 Corolla | 91 | 6% | 77,899 |
| 2008 Corolla | 21 | 7% | 70,000 |
| 2007 Corolla | 33 | 4% | 74,000 |
| 2006 Corolla | 24 | 3% | 95,667 |
| 2005 Corolla | 29 | 3% | 100,000 |
| 2004 Corolla | 9 | 2% | 102,000 |
| 2003 Corolla | 16 | 2% | 158,000 |
| 2002 Corolla | 5 | 4% | 74,047 |
| 2001 Corolla | 2 | 2% | 123,000 |
| 2000 Corolla | 3 | 2% | 121,500 |
| 1999 Corolla | 1 | 1% | 135,000 |
| 1998 Corolla | 2 | 1% | 235,000 |
When owners reported it
Related recalls (0)
No safety recall lists engine for the 2020 Toyota Corolla. A pattern of complaints does not always lead to a recall.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
I am reporting a severe, recurring safety hazard on my 2020 Toyota Corolla. The vehicle suddenly displays 'Drive-Start Control Malfunction' and completely cuts off engine power in motion, leaving the car stranded in active traffic. This happened after accelerating from a STOP sign on a main avenue…
What component or system failed or malfunctioned: complete slave cylinder failure resulting in loss of braking and ability to shift. Luckily I was traveling at a low rate of speed when this happened, but if this happens to anyone on the freeway or while turning against traffic for example they…
My Engine Maintenance light came on around 59,400 miles for my Coolest Control valve !! Needed it to be replaced! Light wonât go off just had it serviced for an oil change before this started!!
Frequently asked questions
Do all 2020 Toyota Corollas have engine problems?
No. NHTSA has 111 owner complaints about engine for the 2020 Toyota Corolla (36% of the 310 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 2020 Toyota Corolla engine?
No recall currently lists engine for this vehicle.
At what mileage do engine problems start?
The median reported mileage is 10,000 miles: half of the reports with a mileage came before that.
How much does it cost to fix engine problems on the 2020 Toyota Corolla?
Owners report a typical cost of $850 (half paid between $710 and $940), from 16 complaints that state a repair bill or quote, in 2026 dollars.
What do owners say about engine problems on the 2020 Toyota Corolla?
The most frequent phrase is “bypass valve”, in 72 of 111 complaints, followed by “engine maintenance required” (45).
See all 2020 Toyota Corolla problems or engine problems across all Corolla years.