Complaint volume
300 consumer-submitted complaints are matched to this model year. Treat the count as a research signal, then read the actual summaries for repeated symptoms.
Complaint records
2020 Toyota Corolla Complaints
300 consumer-submitted complaints on record for the 2020 Toyota Corolla, grouped by component category.
300 Total complaints
22 Crash reports
1 Fire reports
15 Injury reports
Complaint data reflects consumer-submitted reports. A complaint is not proof
of a defect, recall, or manufacturer fault. Enriched severity fields come
from official bulk records when the complaint can be matched by ODI number.
Buyer interpretation
How to use these complaints before buying
Complaint records are most useful when they turn into inspection points, seller questions, and comparison checks against nearby model years.
Pattern to inspect
The most common categories are engine, unknown or other, power train. Use those categories as a test-drive checklist instead of judging the vehicle from the total count alone.
Severity flags
Enriched records include 22 crash reports, 1 fire report, 15 injury reports, and 1 fatality report. These fields come from complaint records and should be read in context.
Mileage clue
Mileage is available on 68 complaints, with an average reported failure mileage of 26,107 miles. Compare that with the mileage on the listing.
Questions to ask the seller
- Have you had any problems related to engine, unknown or other, power train?
- Can I see recent maintenance and repair records?
- Has the vehicle ever been towed, involved in a crash, or repaired for the same issue twice?
- Can we also check the recall record for this 2020 Toyota Corolla?
Used-car checklist
Use these complaints before the test drive.
Build a buyer checklist to turn these issues into questions and inspection points.
2020 Toyota Corolla
Build buyer checklist Compare with other years Sends year, make, and model to pre-fill your checklist.
How severe are the 2020 Toyota Corolla complaints?
22 Crash
1 Fire
15 Injury
1 Fatality
19 Towed
9 Medical attention
What are the most common 2020 Toyota Corolla complaint categories?
ENGINE 81
UNKNOWN OR OTHER 55
POWER TRAIN 19
AIR BAGS 13
VISIBILITY/WIPER 13
ELECTRICAL SYSTEM 10
UNKNOWN OR OTHER,ENGINE 9
SERVICE BRAKES 8
FUEL/PROPULSION SYSTEM 7
STRUCTURE 6
300 total complaints on record
Latest complaints
| Date | Component | Summary | Severity | Mileage |
|---|---|---|---|---|
| Jun 2024 | ENGINE | "Engine Maintenance Required" sign came on, I took it to the dealership and was told it was the coolant bypass valve and it would be $800. Upon doing some research is see that this is a very common issue for 2020 Toyota Corollas. My car is still under 60,0000 so I'm surprised I need work this experience done already | Crash: No Fire: No | Unknown |
| Jun 2024 | ENGINE | coolant bypass valve is malfunctioning in 2020 toyota corolla se. upon research this is a known problem in toyota corollas, camrys, rav 4 and prius, and was recommended to report this as a possible recall. "engine matinence required, visit your dealer" message does not go away. takes 5+ minutes to blow cold air. | Crash: No Fire: No | Unknown |
| Jun 2024 | ENGINE | The car is at 58,125 miles and I’ve had a “engine maintenance required, please take to dealership” message for the past 3 months which will not go away and is just stuck on my dash. An OB2 port scanner shows nothing wrong, but after a diagnosis at toyota it appears I need a new engine coolant bypass valve. As it turns out, many other corolla, rav 4, and camry owners of the same generation (2020 and up) also receive the message and need to get the coolant bypass valves replaced around 30k-60k miles. | Crash: No Fire: No | Unknown |
| May 2024 | UNKNOWN OR OTHER | I have a message that says engine maintenance required. I ran a diagnostic and it is for the engine coolant bypass valve. | Crash: No Fire: No | Unknown |
| May 2024 | ENGINE | Engine maintance required/coolant bypass valve issue | Crash: No Fire: No | Unknown |
| May 2024 | ENGINE | Coolant bypass valve bad at 26000 miles | Crash: No Fire: No | Unknown |
| May 2024 | ENGINE | "Engine Maintenance Required - Visit Your Dealer" message popped up on my car's (Toyota Corolla 2020) dashboard all of a sudden and I didn't have any issues with engine before. I brought up my card to Toyota Service Center in Sunnyvale, CA and they told me that my car's coolant bypass valve has to be replaced and re-check if it's needed which is an uncertain thing and advised me not driving the car as it may damage the cooling system components or even the engine itself. All of these will cost me 911.58$ which is too much but it's not all yet. I was researching this issue on the Internet and figured out that many people who has the Corolla 2020 and 2021 had the exact same issue. I don't think it's a coincidence. People also complaining about the same issue for Toyota Rav4 and Toyota Camry. I don't want to pay so much money which is almost 1k. I never had any accidents and or crashes. [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) | Crash: No Fire: No | Unknown |
| May 2024 | POWER TRAIN,UNKNOWN OR OTHER | At 55K miles for my 2020 Toyota Corolla, the Engine Maintenance Required notification popped up on my screen and is not removable. Upon further verification numerous 2020-2021 corollas have been having this issue at similar amounts of mileage. It is a faulty Engine Coolant Bypass Valve that needs to be replaced. If I were to take it in to a dealership, they would charge $500+ just as they have for many others when it should really be a recall. As of now I have not taken it to be inspected due to fear of steep labor costs. My safety is at risk because if this does not get replaced my engine will overheat causing total failure of the car, and as a 2020 model with such low mileage, this is ridiculous. | Crash: No Fire: No | Unknown |
| May 2024 | ENGINE | The coolant bypass valve was constructed of poor quality plastic, and has cracked at a mere 50,000 miles. It's Leaking coolant into the sensor. Along with potentially causing major damage to the engine. | Crash: No Fire: No | Unknown |
| May 2024 | ENGINE | Engine maintenance required . bypass coolant valve defected | Crash: No Fire: No | Unknown |
| May 2024 | ENGINE | coolant bypass valve issue under 60k miles. | Crash: No Fire: No | Unknown |
| May 2024 | POWER TRAIN,ENGINE | The contact owns a 2020 Toyota Corolla. The contact stated while driving, at any speed, as the contact depressed the brake pedal to stop the vehicle would stop, however when the contact depressed the accelerator pedal the vehicle would move backwards with a jolt before moving forward. The contact stated that the failure was intermittent but had become recurring failure. The contact stated no warning light was illuminated. Additionally, the contact stated that an abnormal buzzing sound was coming from the engine compartment. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle was not diagnosed and was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 131,000. | Crash: No Fire: No | 131,000 |
| May 2024 | POWER TRAIN | The contact owns a 2020 Toyota Corolla. The contact stated while driving 30 MPH, the vehicle was jerking abnormally. The contact noticed a failure with the transmission; however, there were no warning lights illuminated. The contact was concerned that the vehicle might stall while driving. The dealer was not contacted. The vehicle was not repaired. The manufacturer was notified of the failure and the contact was instructed to contact the NHSTA Hotline for assistance. The failure mileage was approximately 131,000. | Crash: No Fire: No | 131,000 |
| May 2024 | UNKNOWN OR OTHER,ENGINE | Coolant bypass valve failed at 52k miles. | Crash: No Fire: No | Unknown |
| May 2024 | ENGINE | The contact owns a 2020 Toyota Corolla. The contact stated while driving at undisclosed speeds, the check engine warning light was illuminated and flashing. The contact stated that the vehicle was not accelerating above 30 MPH. The vehicle was taken to an independent mechanic where it was diagnosed with a rocker arm actuator system performance failure and several other unknown failures. The vehicle was not repaired. The contact discovered the Technical Service Bulletin: 0098-19; however, it was not verified if the vehicle was included. The manufacturer was not made aware of the failure. The failure mileage was approximately 119,000. | Crash: No Fire: No | 119,000 |
| May 2024 | UNKNOWN OR OTHER | My son and daughter in law moved from California to Georgia due to military duties in Hinesville Georgia. They drove their 2020 Toyota Corolla from California to Georgia. They paid the fee to obtain their 2024 registration sticker but got denied by the DMV in California due to a recall on this vehicle. My son took the vehicle to Chatham Parkway Toyota in Savannah Georgia to fix the recall. He received documentation that the recall has been fixed. My daughter in law took this documentation to the DMV and they said it was not sufficient, we needed to provide the original pink copy of the recall. Chatman Parkway Toyota never gave my son the original copy. Where can we obtain this so we can receive our registration sticker? Can you please help us out and contact Chatham Parkway Toyota to see if they even fixed the recall problem or not and why they did not give my son an original copy of the fixed recall situation. It has been a struggle to obtain the registration sticker when the recall was a problem. This situation has been very stressful due to an expired registration and not being able to drive u til we receive the correct sticker. Please help if you can. Thank you, [XXX] . [XXX] . INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) | Crash: No Fire: No | Unknown |
| May 2024 | UNKNOWN OR OTHER | Check engine light is giving a false positive. There is something wrong with the coolant bypass valve. I checked online and this is not an isolated event. | Crash: No Fire: No | Unknown |
| May 2024 | UNKNOWN OR OTHER | I own 2020 corolla le. It has 50k miles. There is a message that keeps coming up in the infotainment screen and hinders the navigation information especially when i am looking for directions and evey second counts and not being able to act when the exit appearscan cause an accident. The message is caused by a dcm failure. Toyota should never allow a message like that pop up every time on the navigation screen. It keeps saying “ device connected not supported “ every few seconds. | Crash: No Fire: No | Unknown |
| May 2024 | VISIBILITY/WIPER | The wipers keep stopping during use. I have to switch speeds to get it running again. Very dangerous when raining. | Crash: No Fire: No | Unknown |
| May 2024 | POWER TRAIN | Engine coolant valve is broken. Part of power train as it cools circuits for the power train. | Crash: No Fire: No | Unknown |
| May 2024 | ENGINE | The Engine Coolant Bypass Valve Short in the vehicle has malfunctioned. This appears to be widespread issue not only in the Corolla, but in the Camry and RAV4, and appears to affect model years 2019-2024. This issue caused coolant leakage, has the potential to cause issues with the engine, and affects the A/C/Heating systems as well. There were no warning signs prior to the failure, and the car had just passed a multi point inspection 4 days prior to the failure. The problem has been reproduced by my local Toyota dealership. | Crash: No Fire: No | Unknown |
| May 2024 | SEAT BELTS,SERVICE BRAKES,ENGINE | At 4 years and 1/2 old car 2020 Corolla XSE an Engine Maintenance Required SEE DEALER light turned on. Did diagnostic with OBD 2 scanner at two locations auto body shop and Uto zone. Nothing appears. It is in fact a NEEDED future recall since thousands if not more people have encountered the same. It is a Coolant By Pass Valve. Cost is only $99.53 + tax at dealer. Problem is that should be under warranty or extended warranty or recall. Dealer likes to charge $800 (180-200 for diagnostic, $110 part, $400 labor. Part only takes 30 minutes to install. I should be able to buy at dealer for $110 and have them install for free or pay 30 minutes of work time = $85. 1 hour is about $175. So instead of trying to be billed $800 I should only be billed for $85 labor (30 minutes) + $110 part = Brand total of $105 USD. My daughter [XXX] and I, [XXX] (dad) bought the car at Longo Toyota El Monte, CA 91731. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) | Crash: No Fire: No | Unknown |
| May 2024 | ENGINE | Coolant bypass valve failure. Dealer (Atkins Kroll, Toyota Guam) is conveniently charging me over $600 for repair for a common issue for vehicles of this generation. | Crash: No Fire: No | Unknown |
| Apr 2024 | ENGINE | Engine maintenance repair On display vehicle not in motion on radio screen | Crash: No Fire: No | Unknown |
| Apr 2024 | ENGINE | Known issue in certain Toyota models and years that the coolant bypass valve fails causing a "Engine Maintence is Required. See Dealer." Toyota is well aware of the issue but has yet to fix the problem as driving with a failed coolant part for too long could cause overheating. | Crash: No Fire: No | Unknown |