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.

- Monroe Twp., NJ, USA

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. If the car is in park/neutral, or when the car is moving, it does not vibrate. The vibration comes back when put back into drive/reverse. The vibration only happens once the car is warm. Car vibrates at 500 RPM. When RPM goes up to 600 or more, it stops vibrating. It also stops vibrating if the A/C compressor is turned on (rpms rising). An independent mechanic diagnosed the problem to be a low idle because idle rpms were too low (not a rough idle). I went to the Toyota dealership 4 times to fix the problem. They were able to replicate the problem and film it happening but were not able to fix it. The dealership has checked other cars for the problem; they first told me that my Yaris is the only one with that problem, then they changed their statement and said "3 other Yaris at other dealerships also had that problem, but it is like 3 out of 30,000 Yaris". this means that the vibration problem is not normal for this car and a few of these cars are defective (with mine being one of them). I went to the dealership 4 separate times regarding this issue but they refused or gave me an excuse, said they couldn't fix it, couldn't replicate the problem, etc. My car only has 3,500 miles and this is unacceptable for a new car. Toyota should acknowledge this problem and find an effective remedy, take this car back, or compensate the owner.

- West Lafayette, IN, USA