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EnginePart report

2020 Toyota Yaris Engine Problems

Complaints
4about this part
Share
40%of 10 total for the year
Median mileage
3,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the engine of the 2020 Toyota Yaris, 40% of the 10 complaints for this model year. Where a mileage was given, the median is 3,500 miles. 1 of these say a crash was involved, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I have a 2020 Toyota Yaris with 3500 miles that has an intense and repeated vibration problem that started appearing 9 months after I bought the car new. When I come fully to a stop, sometimes the car will vibrate intensely like a massage chair. The vibration can be felt throughout - in seats, steering wheel, dash, brake pedal, even the doors and windows. The vibration is so intense it can be visually seen. When I look under the hood, the engine is shaking intensely. However, the problem only happens in drive/reverse and when stopped. …”

NHTSA complaint #11395251, filed 2021-02, 3,500 miles

“Brake assist failed at time of accident, it never came on. It does come on sometimes in the past when it shouldn’t. I was breaking because a car came to a complete stop in front of me, there was no warning and despite my best effort to brake the car still made contact with other car in front of me. I have not yet taken the car to a dealer. The car has not been inspected. No warning lights. However, in the past the car would stop randomly for no reason. Also it has a hesitation when you hit the gas.”

NHTSA complaint #11769271, filed 2026-10

“This 2020 Yaris is registered to me but driven by my daughter to her workplace less that 3 miles away. The first incident involved the engine laboring to start and when she came home, the battery was dead. I was able to re-charge the battery at home but 2 days later, the car would not start at home. I have an auto engine scanner that registered a P2610 code stating an Engine Control Module, ECM/PCM Engine Off Timer Performance . The battery had been completely drained of its liquid. …”

NHTSA complaint #11544389, filed 2023-09

“The owners manual capacities for an oil change with filter calls for 4.4qts. When this amount of oil is used and the proper instructions are followed as per the same manual to check the level with the dipstick it shows that it is overfilled by close to 1qt. The dealership can't explain it nor can Toyota. I truly believe that this could cause either premature engine failure or possibly an engine fire because of this design flaw.”

NHTSA complaint #11405045, filed 2021-03

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2020440%
2019831%
2017213%
201517%
201213%
201114%
201033%
200933%
200863%
200762%

Other parts of the 2020 Toyota Yaris

Fuel system
3 complaints
Other or unknown
3 complaints
Brakes
2 complaints
Electrical system
2 complaints
Forward collision avoidance
2 complaints
Vehicle speed control
2 complaints
Seat belts
1 complaints

← All problems reported for the 2020 Toyota Yaris

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology