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

Engine error message showed up after extended warranty expired by 600 miles. To fix the error message Toyota charge $871 total combined diagnostic, part and labor. The problem was coolant by pass valve shorted.

- Plainview, NY, USA

Toyota Rav4 2019 XLE - Engine Coolant Pump Performance/Stuck Off Error code P26CB milage 56,920 Toyota says this is NOT covered by the 5 year power train warranty. For years Toyota has manufactured this water pump that freezes up due to manufacturing defect that allows the magnetic base housing to rupture. Dealers want to replace entire pump (or at least charge for it) verses replacing the frozen plastic rotor. Dealer claims this is not covered under 5 year power train warranty. Why not? My car temp started climbing and took me hours to get home (10 miles) as I kept stopping for hours waiting for engine cool and sprinkling water from bottles over the engine and trans housing where it butts against the engine (silver brading). (This was late in weekend night - repair shops not open. I do see a recall investigation started (no recall yet) and just wanted to add my complaint to the issue. At first the temp gauge read normal but later started climbing. The engine light did come on the the DB2 said P26CB.

- Venice, FL, USA

Coolant bypass valve

- Aurora, IL, USA

Upon reaching 50k miles, vehicle prompted a "engine maintenance required, please contact dealer" message. Upon inspection at the dealer, I was told this is a common issue in newer Toyota RAV4/Corollas and employees have been seeing this issue continuously. There is no way to bypass this message without getting the part replaced and the replacement runs anywhere ~$800 -$1000. How are so many people dealing with the same issue and Toyota has yet to issue a recall?

- Chicago, IL, USA

Coolant bypass valve failure The issue has been confirmed by a service center and was told a very common failure in my make & model of car. Warning light came on dash board and immediately had checked at service center. The fix is $900, which is frustrating because a class action lawsuit is being gathered for this same defect in my same model of car.

- Hutto, TX, USA

Hi there. As of June 17, 2024, there is a class action lawsuit against Toyota regarding issues with the 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, potentially leading to expensive repairs. The plaintiffs allege that Toyota has violated the Magnuson-Moss Warranty Act, the Florida Deceptive and Unfair Trade Practices Act, and California's Unfair Competition Law, Consumers Legal Remedies Act, and Song-Beverly Consumer Warranty Act. They are seeking a jury trial, declaratory and injunctive relief, and punitive damages. I encountered the same issue on July 3, 2024, and visited Toyota Scott Clark (Charlotte), where I was charged $129 for diagnostics and $835.60 for further service to fix the problem. I am not willing to pay for this service, and Toyota has refused to cover the cost. I am joining the class action lawsuit against Toyota.

- Charlotte, NC, USA

Coolant bypass valve

- Sacramento, CA, USA

My engine maintenance light will not shut off due to a engine coolant bypass valve circuit short to battery. I also have warm fluid dripping on my feet when ac is on. The dealer says water under the dash is from from recalled roof rails. There has been a recall for code that pops up on my mechanic Toyota number20TA04. Dealer says he does haven't code so toyota hasnt issued any issues or re all for engine bypass valve. Toyota now has a class action law suit for this part. I can't afford $700 repair, can't see the messages or my speed due to the engine maintenance required on my screen which can't be reset. This is dangerous and can cause the need to have engine replaced, start engine fires. Toyota has known this issue for 5 yrs and needs to be held accountable.

- Mokane, MO, USA

Coolant Bypass Valve Failure Engine Maintenance Required: See Dealer message appears on the drive screen when driving and you can't remove it- which means you can't see your digital speed or what you are setting your cruise at. The failure of this valve will cause the car to overheat which will lead to radiator/engine damage if not taken care of immediately. This part needs to be recalled!!!! RECALL THE TOYOTA COOLANT BYPASS VALVE! It is a faulty part that is failing in all 2019-2020 Toyota models. Mine is a 2019 RAV4. The part is plastic and is failing across the board. It Is costing $996 to have this problem diagnosed and fixed so I can drive my car again. I am a teacher and this is a substantial amount of money for a plastic part that should have never been used in the first place. Toyota needs to be held responsible for its cheap and faulty parts. I didn't know if I was going to make it to the dealership or not.

- Moseley, VA, USA

Engine maintenance required per dealership it is the coolant bypass valve. Reason for failed per Toyota -??bad luck-?? appears to be a class action suit filed for this issue current mileage 72,384

- Fresno, TX, USA

Engine maintenance required notification came on - told it was due to the coolant bypass valve circuit shorting to the battery

- Grand Prairie, TX, USA