In September 2023 I kept getting a warning on my 2019 Toyota RAV4 saying -??engine maintenance required-??. My car had roughly 50,000 miles. I was not due for an oil change and I serviced my vehicle regularly. I tried to take it to autozone to read the code but nothing came up and they said I just needed an oil change which I knew wasn-??t true. I finally took it to a local Toyota dealership on September 23, 2023 and the first thing the advisor said to me after I told her about the warning message was -??I already know what-??s wrong with it, you-??re like the 4th car today with the same issue-??. The issue was a defective coolant bypass valve. The advisor said the cars most affected were RAV4-??s followed by corollas and it was happening at random mileages. I asked if there was a recall and there wasn-??t, she advised me to call Toyota to make a complaint which I did and nothing happened. I had to pay around $1000 to get a defective part fixed that Toyota knew about and still hasn-??t issued a recall. Theres a class action lawsuit currently involving 2019-2023 corollas and RAV4s, but I still don-??t understand why there hasn-??t been a recall. If I didn-??t get it repaired, my engine could have overheated multiple times causing more issues. They are knowingly not recalling a defective piece of a equipment that has been installed in hundreds of thousands of cars.

- Saint Petersburg, FL, USA

Engine maintenance required when AC is turned on. This is an issue with the coolant by pass valve, many rav4 owners have reported but a recall has not been established

- Cambridge, MA, USA

My coolant bypass valve gave out and Toyota is insisting it-??s not covered under warranty my 10 year warranty. Toyota knew there was a defect and didn-??t tell consumers.

- Bethany Beach, DE, USA

I was stopped at a red light. When the light turned green and I pressed the gas, the engine sputtered and almost shut off. Just before I came to a stop, the engine revved up and the vehicle accelerated. The uneven acceleration is concerning. I recently replaced the gas cap and serviced the fuel system, which leads me to believe there is a defect with the engine. Later in the day, the check engine light went on and AWD system, cruise control, and lane assist were disabled.

- Lebanon, NH, USA

A malfunction in the electronic control of the engine, throttle, or automatic transmission has been detected. The car then ran hot and started jerking. I took it to autozone for them to look and could not find anything, I had a mechanic come over to look at it, and he couldn't find anything either. I sent it to Toyota Wolfchase in Memphis TN. Who has stated it will be two or three days before they can even look at it. This seems to be a common problem with Toyota cars yet there's no recall I have seen numerous complaints on Google Reddit, TikTok, and more. I called corporate to make a complaint and they said they don't see any complaints which I know is not true

- Bartlett, TN, USA

In July of 2023 at only 23K miles but out of warranty coverage, I received the Engine Maintenance Required warning for the failure of the Coolant Bypass Valve. I took it to the dealership (Alamo Toyota in San Antonio, TX) and they said it needed to be replaced and would not be covered under warranty. They quoted over $850 to do the replacement but the part was on national backorder. After returning home I started doing research and found that this is happening at a very high rate and thus there is obviously a defect to this part. Toyota should be treating this is a defect, fixing the issue and providing the fix as a recall fix. I should not have to pay near $1000 to replace a defective part with another defective part that will most likely fail again. Since I am a very low mileage driver, from July 2023 to now I have only driven 4K miles, I have not replaced the part but continually monitor the engine temperature and for any coolant leakage. I know there is now a class action lawsuit but shouldn't the NHTSA get involved due to the number of failures on RAV4s and Corollas and the lack of responsibility being taken by Toyota?

- San Antonio, TX, USA

When I was driving the car to work the automatic system (malfunction ) failed to restart in red light, i have to stop to restart (Awd malfunction } says to take to the dealer, I was driving back tothe dealership, they are saying car had zero coolant in syystem, raditor was leaking engine overheat to blow head gasket, a week before i was taking car dealership to state inspection and found only one issue that was back brake to change, no leak nothing they found, now i spent $7679 dollars to fix it i had all the proof what the dealerships try to say from the begining even I fixed, i am trying get rid of the vehicle now, it isonly 47454 miles when the incident happend.

- Valley Cottage, NY, USA

The coolant bypass valve has leaked. It is available for inspection upon request, however this seems to be a larger ongoing problem across the country with this make, model and year. The check engine light did go on.

- Colorado Springs, CO, USA

The -??Engine Maintenance Required-?? light came on, indicating issues with the coolant valve. This is become a common issue with the RAV4. If this is becoming a common issue for owners, it needs to be looked into!! I commute and my engine can overheat.

- Athens, GA, USA

Engine: I got the 100k engine maintenance done. I replace my coolant and got an oil change. The engine maintenance required warning is still on my dashboard and will not go away because the diagnostic reader states I need a new coolant bypass valve. This is not apart of the factory maintenance, alot on rav4 owners are dealing with this, and it is very pricey. I think it is best for this type of situation to be recalled. Brakes: I got my front brakes replaced and I had issues with my front calipers. My mechanic said both calipers had holes in them and caused my brake fluid to leak which has affected my braking alot. It takes a long time to brake and I-??ve experienced this even after I-??ve paid alot of money to get my driver said caliper replaced, still need to get my passenger side replaced. My mechanic only uses toyota brand supplies so I-??m not sure why there isn-??t any longevity in the quality of supplies. I-??ve only had the vehicle for 2 years.

- Germantown, MD, USA

Defective coolant bypass valves on my 2019 Toyota RAV 4 have caused coolant to leak out of my vehicle-??s closed-loop coolant system, harming its ability to properly regulate engine temperature. Eventually the message -??Engine Maintenance Required Visit Your Dealer-?? appeared on my dashboard indicating an issue with the engine. An internet search of this error message on the 2019-2023 Toyota RAV4 and Corolla models shows this is a widespread defect, affecting hundreds of Toyota owners. A class action lawsuit has been filed against Toyota regarding defective coolant bypass valves in the 2019-2023 Toyota RAV4 and Corolla models [XXX] et al. v. Toyota Motor Sales, U.S.A., Inc) but Toyota has still not addressed this defect with a recall. Attached is a copy of the mechanic invoice I just paid to replace the defective coolant bypass valves on my 2019 RAV4 as the engine was not maintaining temperatures appropriately and in risk of total engine failure. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Marina, CA, USA

My 2019 Toyota RAV4 had been making a loud noise at random intervals when driving at high speeds such as freeway speeds. The dealer said they could not reproduce the issue. A couple years later at around 65000 miles my engine maintenance required message came up and would not go away. I took my vehicle to get the code read and there were no codes. I kept smelling fuel or different unpleasant smells when driving the vehicle. The engine maintenance required notice would turn on every single Time I used the AC. I later went to the Toyota dealer and they said the coolant bypass valve had been leaking and causing the engine maintenance notice to come up. This is a new vehicle that has been maintained properly and rarely driven far. The part and labor was $824.

- Whittier, CA, USA

Coolant valve failed ($700)shortly after warranty ended; extended warranty did not cover repair. Coolant valve then caused harness to be unusable causing for a $4500 part replacement to be required. During the whole process the Toyota dealership maintenance told me that the engine repair required alert was for normal maintenance and directed me to continue driving with it until my scheduled service every time after speaking with three different people and a mechanic at the dealerships maintenance shop. I was then told after bringing in the car that I could leave although the alert was still present. Finally after the maintenance supervisor looked at my car I was told it was not safe to have been driving. Toyota made a faulty part that they expected to break and still put it in vehicles. They then are not even aware/ do not acknowledge this widespread issue in 2019 and 2020 rav-4s and Carrolas. This defective part can cause the engine to have catastrophic issues as I was later told by the maintenance manager at a Toyota dealership. However, Toyota is leaving car owners and leaders out of thousands of dollars in repairs and not acknowledging or warning customers of a dangerous issue.

- Sanford, NC, USA

I got an alert on my screen that would not go away. It said Engine Maintenance Required.-?? Went to auto one & there was 0 diagnostics associated with any codes. The guy said that it is the coolant bypass valve and that there is a class action in the works. He said most places charge $600 - $700 to replace and to hold on to my receipts.

- Raleigh, NC, USA

Out of the sudden, the engine light started to display a message to check engine and overheating of this took place continuously. My Rav 4 only has 70k miles and I got it pre-certified from the dealer. This error is the Coolant Bypass Valve. This Valve is connected to a radiator hose.

- Jersey City, NJ, USA

A warning message appeared that stated: -??Engine maintenance required - Visit your dealer-??. At that time my vehicle had 38,796 miles on it. I contacted the Service Advisor at Toyota of Newnan who advised that it was likely the Coolant Bypass Valve on the engine and that they have had issues and repairs relating to that condition on their RAV4 and Corolla models. Their mechanics confirmed that this was the fault and that failing to have it repaired / replaced could result in engine overheating and engine seizing which could result in lose of vehicle control and endanger other vehicles on the road. Sensing the urgency, I had the repair / replacement completed at a cost of $846.68. Service advisor stated that many of the other vehicles with the same problem were still under warranty and repaired at no cost to the consumer. In my opinion this recurring defect among two Toyota model lines is occurring with enough regularity to warrant Toyota issuing at least a Service Bulletin and covering the cost of the repair and reimbursement to those that had to pay for the repair.

- Peachtree City, GA, USA

Check engine light came on. Ran codes in vehicle and showed code P2681-15 engine coolant bypass valve needs replaced.

- Knoxville , TN, USA

2019 RAV4 with 50120 miles engine maintenance light. It is a very common problem with Rav4s. coolant bypass valve...... My brother has same model same problem. Spent $600 to replace it. Toyota is charging $600-$1000 to replace defective part.

- Upper Darby, PA, USA

2019 rav4 at 59,000 miles engine maintenance required popped up. Went to the dealer, service advisor knew exactly that coolant control valve needed to be replaced because it being so common. I looked it up and coolant bypass valves in the 2019-?"2023 RAV4 and Corolla models. Some owners have reported that this defect could affect the vehicle's performance and longevity. Now I have to spend almost 1,000 for a repair I didn-??t even cause because Toyota built a faulty valve.

- Chelsea, MA, USA

Coolent valve needed to be replaced

- Midway, GA, USA