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 |
|---|---|---|---|---|
| Aug 2024 | ENGINE | Engine coolant Bypass Valve issue | Crash: No Fire: No | Unknown |
| Aug 2024 | ENGINE | Faulty coolant bypass valve needing repair. Manufacturer has open class action lawsuit. My car is also impacted. | Crash: No Fire: No | Unknown |
| Aug 2024 | UNKNOWN OR OTHER | Engine Coolant Bypass Valve | Crash: No Fire: No | Unknown |
| Aug 2024 | ENGINE | 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. | Crash: No Fire: No | Unknown |
| Aug 2024 | UNKNOWN OR OTHER | 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?? | Crash: No Fire: No | Unknown |
| Jul 2024 | ENGINE | 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. | Crash: No Fire: No | Unknown |
| Jul 2024 | ENGINE | 2020 TOYOTA COOLANT BYPASS VALVE. $800 estimate to repair | Crash: No Fire: No | Unknown |
| Jul 2024 | ENGINE | 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. | Crash: No Fire: No | Unknown |
| Jul 2024 | UNKNOWN OR OTHER | 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. | Crash: No Fire: No | Unknown |
| Jul 2024 | ENGINE | Coolant bypass valve malfunction, leaking coolant, engine maintenance required sign pops up on dash around 60k miles | Crash: No Fire: No | Unknown |
| Jul 2024 | POWER TRAIN,ENGINE | 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. | Crash: No Fire: No | Unknown |
| Jul 2024 | FUEL/PROPULSION SYSTEM | 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. | Crash: No Fire: No | Unknown |
| Jul 2024 | ENGINE | THE CAR IS 41.000 MILES. WATER PUMP HAD TO BE REPLACED WHEN SUPPOSEDLY MUST TO LAST UNTIL 100.000 MILES. | Crash: No Fire: No | Unknown |
| Jul 2024 | UNKNOWN OR OTHER | coolant bypass valve issue | Crash: No Fire: No | Unknown |
| Jul 2024 | 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. | Crash: No Fire: No | Unknown |
| Jul 2024 | AIR BAGS | 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. | Crash: No Fire: No | Unknown |
| Jun 2024 | UNKNOWN OR OTHER | 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. | Crash: No Fire: No | Unknown |
| Jun 2024 | ENGINE | Coolant Bypass Valve seems to have an issue at 60k miles which seems to happen to many people at mileage even lower than mine sometimes! My dad had this issue on his 2021 Corolla at 50k miles. | Crash: No Fire: No | Unknown |
| Jun 2024 | ENGINE | "Engine Maintenance Required See Dealer" Message on Dash Display Engine Coolant Bypass Valve I see this incident repeated for the recent Corolla SE and RAV 4 multiple times with no recall/resolution other than Toyota customers should be prepared to spend close to $750 to fix and replace this part that only takes about 20 minutes to be replaced. This is not new to Toyota. This a rip off. A lot money was paid for the car. Went to dealer less than a year ago and purchased a 2020 SE with a $23,323 price tag. Including dealer fees, finance charges and extended warranties the total price comes to $39,000+. I feel cheated as a customer. A practically new car comes with a defective part and it is not covered by warranty?? Come on. I've trusted and recommended Toyota for years. Do you no longer stand by your company name? Need a better resolution. Please. | Crash: No Fire: No | Unknown |
| Jun 2024 | ENGINE | The engine coolant bypass valve has been confirmed faulty at 47,000 due to failure to actuate. Known issues of engine coolant leaking failure have been reported. | Crash: No Fire: No | Unknown |
| Jun 2024 | UNKNOWN OR OTHER | The coolant bypass valve is failing. Engine Maintenance Required message popped on car display. Toyota is trying to charge over $600 to fix it. Many have reported same issue | Crash: No Fire: No | Unknown |
| Jun 2024 | ENGINE | The engine coolant bypass valve is coming up as a code. Around 44k miles. Others have had this problem. | Crash: No Fire: No | Unknown |
| Jun 2024 | AIR BAGS | I have a recall on my vehicle which there's no remedy for it yet. My California registration was due and I wasn't able to complete my renewal until I had my recall certificate saying it was fixed. Now I'm unable to drive my vehicle in feared to be ticketed or being towed. Toyota needs to do better why am I paying for a car I can't drive. Please help!!!!! | Crash: No Fire: No | Unknown |
| Jun 2024 | UNKNOWN OR OTHER | coolent valve | Crash: No Fire: No | Unknown |
| 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 |