OwnerReports

2020 Toyota Corolla problems

Owners have filed 395 complaints about the 2020 Toyota Corolla with NHTSA. Engine accounts for 27.3% of them — far more than any other system, ahead of power train at 9.4%. A further 20.0% were filed without a specific system named.

Complaints395
Crashes35
Fires2
Injuries43
Deaths1

What owners report breaking

Engine 27.3% · 108
Unknown or other 20.0% · 79
Power train 9.4% · 37
Electrical system 7.6% · 30
Service brakes 5.6% · 22
Air bags 4.3% · 17
Visibility/wiper 4.3% · 17
Fuel/propulsion system 3.5% · 14
Severity

Of those complaints, 35 describe a crash, 2 describe a fire, 43 report an injury and 1 report a death.

Reading the numbers

Across the 33 model years of the Toyota Corolla in this data, 2020 sits 10th by complaint volume. 2009 draws the most.

Filings are rising — 233 in the last three years against 95 in the three before. For a vehicle this age that usually points to a wear-related failure owners are hitting now.

The median odometer reading at the time of complaint was 8,190 miles.

In owners' own words

My 2020 Toyota Corolla had a warning light turn on, on 3/20/2024. The warning read "Engine Maintenance Required". I looked up this issue and read that many people were having similar issues with the coolant bypass valve. I took my car to my local Toyota dealership and they confirmed it was the coolant bypass valve. The risks included in this failure can be overheating and engine damage. Engine
engine maintenance required notification popping up. told i needed to replace engine coolant bypass valve. safety is at risk because the notification blocks my speedometer . dealer has confirmed that the engine bypass valve needs to be replaced and this happens with all toyotas around 40k miles. has been inspected by dealership. notification popped up on my car about two weeks ago. Engine
I have an error that appeared displaying “Engine Maintenance Required” after some investigation snd research, I have noticed that this is a common issue associated with the OEM Engine Coolant Bypass Valve. This occurred as I was driving home from work when I was driving down the freeway, I did not run into any obstacles or have an accident, it appeared out of thin air. Engine

Verbatim from NHTSA filings. Complaints are unverified owner reports.

Safety recalls

Checking NHTSA for open recalls…

Other Toyota Corolla years

Compare all 33 model years →