Air coolant bypass valve malfunction. Engine maintenance error message pops up, does not cool properly. Leaking ac fluid. Confirmed by dealership. Costs around 800 to 900 dollars to repair. Parts must be ordered ahead of time. No warning, just message showed up and will not go away. Doesn't let me see the speed I am going on the display since error message keeps popping up every minute.

- Costa Mesa, CA, USA

Air coolant bypass valve malfunction. Engine maintenance error message pops up, does not cool properly. Leaking ac fluid. Confirmed by dealership. Costs around 800 to 900 dollars to repair. Parts must be ordered ahead of time. No warning, just message showed up and will not go away. Doesn't let me see the speed I am going on the display since error message keeps popping up every minute.

- Costa Mesa, CA, USA

While under warranty, my vehicle's -??engine maintenance required-?? alert came on. I called Toyota immediately and the customer service representative (not a mechanic) said it-??s a common issue - coolant bypass valve. This is without me bringing the vehicle in for diagnostics. Shortly after the alert disappeared. Took it to the dealer and they said they didn't have any issues when they ran diagnostics. A few days later it came on again. I went to the nearest mechanic and they said that it should be recalled because there was no alert by the time I got there. I reached out to the dealership again and when they checked the vehicle they said the car alert needed to be reset. It-??s been almost a year now and it-??s back on and the dealership now wants $800+ to change the coolant bypass. The vehicle drives as it should with no issues other than the alert. I-??ve read multiple forums where this is a common issue.

- Waxhaw, NC, USA

I have had a Service Engine message on my dash that would return within seconds of my hitting the button to signal I received the message. When I took the vehicle to the dealership I was told it was a leaking coolant bypass valve and would need to be replaced. I was told the cost would be $215 plus three hours of labor. The final cost was $240 for the parts and $709 for the labor. The vehicle only has 31,209 miles on it. As I have researched the part, I have found numerous people have had the same issue within a similar range of mileage.

- Belle Isle, FL, USA

I bought the 2020 Rav4 XLE back in 2019 and had driven for four and half years now. I went to the dealership to get my routine oil change just this Monday July 29th 2024. As usual, the dealership did multi-inspection on my Rav4 and didn't find any problem that requires immediate attention. Two days later, a warning message popped up on the MID screen right after I started the car and read "Engine Maintenance Required". After searching online, calling both local mechanic and Toyota dealership, it happens to be a well-known issue for many 2019-2023 Toyota models including Rav4, Camry, Corolla that the faulty coolant bypass valve has to be replaced. I'm not a car person and I don't know much about cars but I have had the radiator broken while I was driving on my old car due to coolant related issue and almost got me into an accident so I know I shouldn't overlook any issues related to coolant. That being said, Toyota dealership knew about the issue, my local mechanic heard about the issue, an overwhelming number of users had reported the issue on online forums, and with no surprise, a class action lawsuit was filed regarding this issue on June 2024. For a solid car brand that advertises reliability and accountability for its vehicles, not informing or recalling for affected customers is extremely disappointing and unacceptable. After all, I had to pay $785 out of pocket for a repair that should never be done in less 5 years/45000 miles.

- Los Angeles, CA, USA

I had a message on my dash for "engine maintenance required" but my check engine light was not on. Coolant bypass Valve failed, it is definitely a known issue and the dealership knew the likely issue before the car was seen by any technician.

- Tucson, AZ, USA

We replaced the original battery on May 27, 2024. A few weeks later, on June 15, 2024, an "Engine Maintenance Required" message appeared on the display screen. A local mechanic diagnosed the code and stated that the oil level was low so we added one quarter of motor oil. We also called the dealership, which stated that this code generally indicates a coolant bypass valve malfunction. We topped off the coolant fluid but the "Engine Maintenance Required" message still appeared (we were not able to clear it). A few days later, we took the vehicle to another mechanic, who informed us that the coolant bypass valve was broken and needed to be replaced. Given the 95-degree temperatures, we felt that we had no choice but to replace the broken valve because we did not want the engine to overheat. So we paid $570.28 for the mechanic to replace the coolant bypass hose and valve. The mechanic stated that this issue should not occur in any vehicle with only 38,000 miles, which means the valve was likely defective to begin with. It is suspicious that this issue occurred about two weeks after we replaced the battery and about 2,000 miles after we surpassed the factory warranty. Please investigate!

- Alexandria, VA, USA

Engine maintenance required message. Need to replace coolang bypass valve known to be common issue with rav4 2019 up models

- Alexandria, VA, USA

my 2020 RAV4 (48,000 miles), when I start the engine and turn on the A/C, the warning light comes on:Engine maintenance required.

- Milpitas, CA, USA

Bypass coolant valve needed to be replaced after engine maintenance required warning came

- Suffern , NY, USA

Coolant bypass valve replacement has been happening to many new Toyotas and needs to be recalled

- Pittsburg, CA, USA

Coolant Bypass Hose had to be replaced on a vehicle that only had 80,000 miles and only 4 years old. -??Engine maintenance required-?? displayed. Took to dealer and code popped up with an issue with the coolant bypass hose. Nothing occurred to trigger replacement-??it was a faulty part to begin with.

- Cullman, AL, USA

Vehicle popped up Engine Maintenance Required. Not an oil change reminder as I-??d just had that done a week ago. RAV4 XLE is at 60,820 and this is a common issue from the looks of it. Dealer wants $800 to fix but no physical codes came

- Sebastian, FL, USA

My 2020 Rav4 Limited AWD alerted me that the engine needed maintenance, and, so I parted it until Tuesday, After talking to the service professional at Passport Toyota, they told me about everything else but did not see that the light was on. They did my regular 55,000 miles maintenance on my car. So before driving away, I noticed that the alert was still blinking on my car. Their findings is that the coolant bypass valve/hose etc., has gone bad and is remaining in the open position. Apparently, this part isn't covered by warranty. After reading, there are a lot of years such as 2019, 2018 to name a few having had the same problem. And to fix the problem it is $857.22. Since this problem is occurring in a lot of Rav4's, and I noticed Camry's as well, should they look into why this is happening in a lot of models of their cars, SUV's etc.

- Suitland-Silver Hill, MD, USA

Engine Maintenaince Required, Visit Dealer message came on, googled problem and Coolant Bypass Valve keeps popping up.

- West Covina, CA, USA

Toyota RAV 4 vehicles prior to their 2023 versions are subject to CAN bus injection attacks resulting in the theft of the vehicle. I demand that Toyota provide the encryption fix to all previous years of vehicles and/or provide a physical method for protecting vulnerable spots where CAN bus attacks can occur. Methods like air gapping connections to devices accessible to the outside of the vehicle as well as better encryption for their keys.

- West Jordan, UT, USA

Coolant bypass valve

- Clarkesville , GA, USA

My 2020 Toyota?Rav4 was just diagnosed with an engine coolant bypass valve failure. The leak from this valve could cause engine overheating. This seems to be a well known defective?engine component that Toyota appears unwilling to address.??

- Burnsville, MN, USA

I began having problems with my liftgate, i would press the button either in my vehicle or on top of the liftgate and it would only go up & down a little bit and stop. I took it to the dealer and was told the hinges are bad and I had to pay almost $500 to repair! Within a few days, I had the same issue again. After doing research I saw thousands of people complaining about the same issue and fee I completely wasted my money to the dealer as its worse then ever! Also, the several of the other owners of these vehicles are stating that after they paid to repair the hinges and took vehicles back to dealer, they are being told the need a motor and thats about $3500! I would love to see a recall as I am far form the only person with this issue, I will also be calling Toyota Customer Care as I will request a fix again or a complete refund. Thank you Please contact me if you have any questions.

- Coolville, OH, USA

Coolant bypass valve

- Jesup, GA, USA