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 |
|---|---|---|---|---|
| Apr 2024 | ENGINE | My engine maintenance required screen came on in my car. When I ran the diagnostic, they stated that the coolant bypass valve needs to be replaced in order to prevent the engine from overheating. This seems to happen on all of the 2020 and 2021 Toyota Corollas. | Crash: No Fire: No | Unknown |
| Apr 2024 | UNKNOWN OR OTHER | Maintenance required please see dealer message pops up and cannot be dismissed. Coolant sensor bypass valve is damaged. | Crash: No Fire: No | Unknown |
| Apr 2024 | ELECTRICAL SYSTEM,ENGINE | An engine maintenance required popped up in the vehicle and was unable to be removed Took the vehicle to get checked at a Toyota dealership and they advised it was the coolant valve bypass was faulty | Crash: No Fire: No | Unknown |
| Apr 2024 | ENGINE | Warning display message “Engine Maintenance Required Visit Your Dealer”. After diagnostic at the dealer, coolant bypass valve failed and needed replacement with hefty, almost $900.00 for parts and labor cost. Did research online, and it seems that more vehicles from the year 2020-2021 have experienced the same issue at 30-55k miles, my car is on 106k miles. Please do a recall for this issue and extend warranty to $200k miles. This car should not have this sort of issue! | Crash: No Fire: No | Unknown |
| Apr 2024 | ENGINE | engine coolant bypass valve issues under 70k miles | Crash: No Fire: No | Unknown |
| Apr 2024 | ENGINE | The engine coolant bypass valve needed replacement at around 70,000 miles. Similar replacement have been needed in other corollas models of the same year. | Crash: No Fire: No | Unknown |
| Apr 2024 | UNKNOWN OR OTHER | The "Engine Maintenance Required, Visit Your Dealership" is displayed. The oil has been changed and tried to reset the warning as it states in the owners manual but it wont reset. | Crash: No Fire: No | Unknown |
| Apr 2024 | VISIBILITY/WIPER | The windshield wipers seize up. On the intermittent setting, instead of wiping every few seconds they sometimes wipe 3 times in a row and then stop in the middle of the windshield sometimes obstructing my view. They sometimes start back up on their own and sometimes are stuck there until I switch to a higher speed and lower speed for the windshield wipers. It becomes a game of trying to restart them while driving while it's raining. It's dangerous. | Crash: No Fire: No | Unknown |
| Apr 2024 | ENGINE | Engine maintenance required light comes on and it wont go away. Happened around 65000 miles. It is cracked engine coolant bypass valve. It is happening to all toyota corolla 2020s. Dealer is asking $1200 to fix it. | Crash: No Fire: No | Unknown |
| Apr 2024 | ENGINE | Engine coolant bypass valve failed at 36,981 miles. | Crash: No Fire: No | Unknown |
| Apr 2024 | ELECTRICAL SYSTEM,ENGINE | Dashboard stated engine maintenance required- visit your dealer and it turned out to be a bypass coolant valve malfunction per Toyota mechanic specialists. | Crash: No Fire: No | Unknown |
| Apr 2024 | AIR BAGS | I was in a car accident where someone hit us at a high speed from behind. Unfortunately the air bags malfunctioned resulting in my face being busted on the front dash. The car gave me a malfunction warning when they didn’t deploy | Crash: Yes Fire: No Injuries: 1 Towed Medical attention | Unknown |
| Apr 2024 | ENGINE | Experience with a faulty Coolant Bypass Valve. Read enough information of this being a problem with newer toyotas (RAVs, Camrys, Corollas, etc.). Cannot get rid of Engine Maintence Required notification on dash which pops up every 10 seconds when I’m driving after I dismiss it. This specific notificaiton is also NOT in the Toyota Manual whatsoever, and no it is not the Maintenance Service Required notification that comes up every 5,000 miles for basic check up. | Crash: No Fire: No | Unknown |
| Apr 2024 | UNKNOWN OR OTHER | Engine maintenance required People on internet saying that i need to change the coolant bypass valve | Crash: No Fire: No | Unknown |
| Mar 2024 | UNKNOWN OR OTHER | “Engine Maintenance Required Visit Dealer” keeps popping up despite engine being fine. Another scan by my mechanic determined that the cooling bypass valve is having an issue/keeps getting stuck and triggering the maintenance alert to keep going off. | Crash: No Fire: No | Unknown |
| Mar 2024 | POWER TRAIN | Engine coolant bypass valve becomes faulty at low mileage | Crash: No Fire: No | Unknown |
| Mar 2024 | ENGINE | 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. | Crash: No Fire: No | Unknown |
| Mar 2024 | ENGINE | Had my car (Toyota Corolla 2020 SE) give a “engine maintenance required, take to a dealer” error message on my digital dashboard. No error codes from any maintenance device but apparently only the Toyota dealership can find this in the software using their computers to find it somewhere deep in there… The problem is the upper engine coolant bypass valve. This is costing me almost $1000 including the $80+ in diagnostics that ONLY the Toyota dealership can see and find out. Apparently this is a very common occurrence with the 4 cylinder corollas and RAV4s. | Crash: No Fire: No | Unknown |
| Mar 2024 | FUEL/PROPULSION SYSTEM | I purchased my vehicle new in 2020. I am currently at 74,000 miles and noticed my engine maintenance required light come on although I received an oil change service two days prior. It’s a different message from the routine maintenance. I got it checked out at Toyota today and the “engine coolant bypass valve” needed to be replaced. When I looked into it I noticed the 2020 Camry and 2020 rav 4 were recalled for the issue and repaired for free. However my model Toyota Corolla was not recalled and I had to pay $700.82 to get it replaced at Toyota today. | Crash: No Fire: No | Unknown |
| Mar 2024 | ENGINE | Engine Coolant Bypass Valve replacement , Toyota is charging me 888 dollars for repair. | Crash: No Fire: No | Unknown |
| Mar 2024 | VISIBILITY/WIPER | Wipers randomly stall mid-cycle when in use, speed settings are inconsistent and sometimes fail to function at all. | Crash: No Fire: No | Unknown |
| Mar 2024 | FUEL/PROPULSION SYSTEM | The fuel gauge suddenly malfunctioned giving a false reading of the amount of fuel remaining in the tank. A technician said that the problem seems to be with the sending unit in the tank. I use top tier gas and the car has only about 29,800 miles. The fuel gauge continues to malfunction and could be a generic design flaw. Safety could be put at risk if the vehicle ran out of fuel while driving in traffic. There were no warning lights, messages or other symptoms of the problem prior to the failure. | Crash: No Fire: No | Unknown |
| Mar 2024 | ENGINE | I discovered that my 2020 Toyota Corolla SE has a Coolant Valve Bypass malfunction coded "p2688115". I have also discovered this a prevalent issue after you hit 70,000 miles. There are forums all over the internet with complaints about the same issue as mine. I did some research and found no recalls. With this being such a common issue for no reason, faulty equipment. The car has been inspected by a Toyota dealer in Bradenton, FL because we had thought the service vehicle message was for a tire rotation. They scanned the vehicle and discovered the fault code "p2688115" after trying to reset it numerous times. The senior tech was the one who scanned it. He knew the exact reason why it was not clearing before scanning the vehicle. He only scanned it to solidify his hypothesis. I then spoke to the service team, they wanted me to bring it in for a diagnosis that would cost $85.00 if my warranty did not cover it. The cost of the part was estimated at around $150.00 plus labor and taxes. It was over a $400.00 repair. For a repair as such, this needs to be recalled. The warning message never went away, if you tried to clear it to view the screen you had about three seconds before it came back on. It is a major safety risk for those who wear glasses and drive at night. I use the screen to keep myself safe and maintain my driving speed. This warning message came on around 70,000. Some so many other individuals have experienced and complained about the same problem. This needs to be escalated. I am not allowed to utilize the safety features my car has to offer. Please take action and commence an investigation. | Crash: No Fire: No | Unknown |
| Mar 2024 | ENGINE | After I had brought a my car to the dealer for its oil change and tire rotation, a warning message came from my car saying "Engine Maintenance Required". After checking with my dealer, they said that the coolant bypass valve needed to be replaced. After checking online, it seems that this is a common problem for recent Toyota vehicles. | Crash: No Fire: No | Unknown |
| Mar 2024 | ENGINE | After bringing my vehicle in for its oil change and tire rotation, a warning message showed up from my car saying "Engine Maintenance Required". After checking with my dealer, they said that the coolant bypass valve needed to be replaced. My car only has 33,000 miles and has had no issues whatsoever. | Crash: No Fire: No | Unknown |