2020 Toyota Corolla
Problems, recalls and owner-reported issues
Engine is the leading concern among 308 owner complaints filed for this model year. This is the 11th highest complaint count among 26 Corolla model years with reports.
Of the 2020 reports, 22 involved a crash and 1 involved a fire. 23 people were injured and 1 person died.
What owners report most often
Recalls and investigations
Air bags, sensor, occupant classificationDec 20, 2023
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2020-2021 Avalon, Avalon Hybrid, Corolla, Highlander, Highlander Hybrid, RAV4, RAV4 Hybrid, Lexus ES350, Lexus RX350, Lexus RX450H, 2021 Sienna Hybrid, Lexus ES250, 2020-2022 Camry, Camry Hybrid, and ES300H vehicles. A short circuit may develop in the Occupant Classification System (OCS) sensor, preventing the front passenger air bag from deploying.
An air bag that does not deploy during a crash increases the risk of injury.
Dealers will inspect and replace the sensor as necessary, free of charge. Interim letters notifying owners of the safety risk were mailed in February 2024. Some final remedy owner letters were mailed October 31, 2024. Letters will continue to be mailed in phases through January 2026. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 23TB15/23TA15 Lexus 23LB03/23LA03.
Campaign 23V865000 on NHTSA.gov
Fuel system, gasoline, delivery, fuel pumpNov 4, 2020
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018-2019 4Runner, 2019-2020 Avalon, 2019 Corolla Hatchback, 2017-2019 Highlander, 2018-2020 Camry, 2020 Corolla, 2018-2019 Land Cruiser, 2017-2020 Tacoma, 2019-2020 RAV4, 2019-2020 Sequoia, 2017-2020 Sienna, 2019-2020 Tundra, 2018-2020 Lexus ES350, 2017 Lexus GS200t, 2017-2019 Lexus GS350, 2019 Lexus GS300, 2018-2020 Lexus LC500h, 2019-2020 Lexus LS500, 2018-2019 Lexus GX460, 2017 Lexus IS200t, 2019 Lexus IS300, 2019 Lexus IS350, 2018-2020 Lexus LC500, 2018 Lexus LS500, 2019 Lexus LS500h, 2018-2019 Lexus LX570, 2017 Lexus RC200t, 2019 Lexus RC300, RC350, 2017 and 2019-2020 Lexus RX350, 2018-2020 RX350L, 2019 Lexus UX200, 2018-2019 Lexus NX300 vehicles. The low-pressure fuel pump inside the fuel tank may fail.
If the fuel pump fails, the engine can stall while driving, increasing the risk of a crash.
Toyota will notify owners, and dealers will replace the fuel pump assembly with an improved one, free of charge. Owners of specific models were notified that remedy parts were available starting January 21, 2021. Owners of other models will be notified as remedy parts become available. Remedy parts should be available for all affected vehicles by late March 2021. Owners may contact Toyota customer service at 1-888-270-9371 or Lexus customer service at 1-800-255-3987. Note: This recall is an expansion of recall 20V-012. Toyota's number for this recall is 20TA02. Lexus' number for this recall is 20LA01.
Campaign 20V682000 on NHTSA.gov
Seat belts, rear/other, buckle assemblyDec 11, 2019
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2019-2020 C-HR and 2020 Corolla and Corolla Hybrid vehicles equipped with rear seat belt assemblies with a dual-mode locking mechanism. The seat belt webbing sensor locking mechanism may not lock as intended.
In the event of a crash involving multiple impacts, the seat belt may not properly restrain the occupant, increasing the risk of injury.
Toyota will notify owners, and dealers will inspect the rear seat belt assembly production dates, and replace the assemblies, as necessary, free of charge. The recall began February 7, 2020. Owners may contact Toyota customer service at 1-888-270-9371. Toyota's numbers for this recall are 19TB22 and 19TA22.
Campaign 19V877000 on NHTSA.gov
Representative owner complaints
308 reports, newest first.
Other or unspecified, Aug 31, 2024
My family has several Toyota vehicles but for some reason my 2020 Toyota Corolla is the only one that comes up with problems. My Engine maintenance required notification came on for my 5 year old vehicle. The Dealership stated that the coolant bypass valve needs to be replaced and that it was a common issue. They are saying it cost almost $1000 just to fix an issue created by them on a new car with 55,000 miles.
Engine, Aug 31, 2024
The Coolant Bypass Valve on my Toyota Corolla 2020 is faulty. An "Engine Maintance Required" code appeared a couple months ago, when the vehicle was still under 60K miles. The vehicle is available for inspection upon request. A faulty coolant bypass valve can cause the engine to overheat or leak coolant, leading to potential breakdowns or accidents. It may also trigger warning lights and reduce cabin heating, creating further safety risks. Not confirmed by dealership/indepenent service center. Only confirmed by personal inspection. The vehicle/component has not been inspected by manufactuer/police/insurance representatives. "Engine Maintance Required" message appeared on digitial display of vehicle. Message does not appear when the vehcile is turned on while A/C system is left OFF, but upon turning on the A/C, the maintaince required message appears, indiciating a faulty bypass valve.
Electrical system, Aug 28, 2024
Vehicle would not start. After the vehicle's battery was jumped, the vehicle would start, but upon moving the vehicle, the dashboard message read, "Engine Stopped - Steering Power Low." There are numerous entries in online forums of others looking for solution for the same issue. Sometimes others have said that this occurred while in stop-and-go traffic on the highway or idling at a red light. Clearly, if a vehicle becomes disabled on a roadway with no prior warning of a failing battery, that is a safety issue. There was no warning of a failing battery. Battery was replaced, which was a surprise for a 2020 vehicle. However, this issue has occurred in newer vehicles as well if you review the comments in the online forums. Failed battery was tested and measured 67CCA/295CCA @11.44V. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Engine, Aug 25, 2024
coolant bypass valve is defective and failed prematurely. coolant bypass valve cracks and leaks coolant. Once coolant beings leaking, it comes into contact with the electrical connector located near the valve. The coolant corrodes and damages the connector, which eventually causes connector to malfunction. This causes the coolant bypass valve to be stuck in the “open” or “closed” position (i.e. it no longer responds to the needs of the engine), restricting coolant flow and allowing the engine to overheat. I had to repair the vehicle at Harvey's Autotech 521 West Sixth Street Corona, CA 92882 (951) 737-9878 at the cost of $643.91and loss of a work day.
Engine, Aug 21, 2024
I was driving in traffic when a warning light comes on it says "engine maintenance required visit your dealer". I have looked everywhere in the manual on this message and unable to find anything no other lights are on or anything to determine the issue. Took it to get checked at autozone no codes came up all is clear. I've read online this is a known issue to replace the coolant bypass valve. Unfortunately I take my vehicle to toyota for all oil changes etc and this was not mentioned.
Other or unspecified, Aug 20, 2024
My 2020 Corolla XSE has been displaying an "Emergency Maintenance Alert" for over a month covering the middle portion of my dash. When running the code it indicates "Coolant Valve" defect. Upon further research while trying to obtain a replacement part it looks as though multiple people are having an issue with the same part.
Power train, Aug 18, 2024
Engine Coolant Bypass Valve failed at 42400 miles. The problem was identified and confirmed at a dealership. There was a warning message appearing on the dashboard stating that engine maintenance was required.
Other or unspecified, Aug 17, 2024
Engine maintenance required see dealership message on dash. Coolant valve needs to be replaced. Class action lawsuit pending.
Engine, Aug 16, 2024
Engine coolant Bypass Valve issue
Other or unspecified, Aug 15, 2024
Engine Coolant Bypass Valve
Engine, Aug 15, 2024
Faulty coolant bypass valve needing repair. Manufacturer has open class action lawsuit. My car is also impacted.
Engine, Aug 8, 2024
An engine maintenance required warning displayed on the car dashboard. Crown Toyota Ontario performed diagnostic inspection and detected that code P268115 - engine coolant bypass valve was defective. Based on research the P268115 - engine coolant bypass valve is a common failure to Toyota Corolla, RAV 4 and Camry by car owners for models manufactured in 2019 - 2023. Toyota Ontario advised that the defect is not covered by warranty. My corolla is a 2020 model with 77,379 mileage on it.
Other or unspecified, Aug 5, 2024
The car will need a new coolant by-pass valve ($663 installed). This is a problem that seems to be affecting more cars than usual as it is in many websites and social media portals, but it's not recognized to be recalled!! A $70.00usd part for $663.00 installed??
Engine, Jul 31, 2024
I had called Toyota colonial dealership in Milford CT. After briefly speaking with the service representative, he advised that it’s most likely the engine coolant bypass valve. He said that it is common with my car models. I did some extra research and found out that many others were having the same issue from only having the car for a few years.
Engine, Jul 25, 2024
2020 TOYOTA COOLANT BYPASS VALVE. $800 estimate to repair
Engine, Jul 25, 2024
The coolant bypass valve on my 2020 Corolla SE has started to go bad. The repairs are over $700. Apparently, this is a well known and documented issue with not just the Corolla but also the RAV-4 models. No recalls have been issues despite this being a known problem.
Other or unspecified, Jul 22, 2024
The coolant valve in the engine began malfunctioning and leaking next the the battery. I took it to the dealership and they said that this was a common maintenance issue, but it is do to the part being faulty overall. This is a widespread issue with this make and model of the vehicle and the part has not been recalled. Leakage could possibly cause the engine to overheat and the result could be catastrophic.
Engine, Jul 19, 2024
Coolant bypass valve malfunction, leaking coolant, engine maintenance required sign pops up on dash around 60k miles
Power train, Engine, Jul 12, 2024
Engine maintenance light came on after turning on air conditioner. Vehicle information: warning light came on at 56,800 miles on 2020 Toyota Corolla, no after market modifications to vehicle. I took vehicle to Toyota dealership for diagnostic testing. Conclusion: coolant bypass valve faulty causing leaks (this can cause overheating, stalling, increased emissions, and total engine failure and also allows coolant to leak into and damage surrounding engine components, including a vehicle's electrical system, the complaint relays). Fortunately, I PURCHASED AN EXTENDED WARRANTY when I bought the vehicle new, which covered the repairs. The faulty coolant bypass valve was replaced at the Toyota dealership. Had I not purchased the extended warranty, I would of been out of pocket for said repairs.
Fuel/propulsion system, Jul 8, 2024
My car is at around 42,000 miles and has had an engine maintenance light on. I take it in and it’s a defective coolant bypass valve issue. The dealership tried to charge me 800 dollars to replace it. It’s an apparent fault on their part since it has been an apparent problem with other toyota corollas with a lawsuit already filed.
Engine, Jul 7, 2024
THE CAR IS 41.000 MILES. WATER PUMP HAD TO BE REPLACED WHEN SUPPOSEDLY MUST TO LAST UNTIL 100.000 MILES.
Other or unspecified, Jul 4, 2024
coolant bypass valve issue
Engine, Jul 3, 2024
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.
Air bags, Jul 2, 2024
I contacted my local Toyota dealership a couple months ago about air bag recall situation and they’ve told me the parts are not ready yet. Then I called just a couple days ago and they said that the wait time will be next year in 2025 about march or may and I asked the person working there if I would to get in a crash and the air bags don’t deploy what would I be able to do and they said you can sue Toyota. I just think next year by March or May is along time especially if I have my wife in the car too.
Other or unspecified, Jun 27, 2024
Engine Maintenance Required, See the dealer msg started popping up. Went to the dealer and after diagnostic check, the dealer said the bypass valve need to be replaced and wont be covered under powertrain warranty.