Abraham Jewett  |  June 10, 2024

Category: Auto News
A red 2022 Toyota RAV4 parked on the side of a scenic road, representing the Toyota class action.
(Photo Credit: Victor Maschek/Shutterstock)

Toyota coolant bypass valves class action lawsuit overview: 

  • Who: Geri Barrientos and Michael Foerst filed a class action lawsuit against Toyota Motor Sales U.S.A Inc., Toyota Motor Corporation and Toyota Motor North America Inc. 
  • Why: Barrientos and Foerst claim Toyota failed to disclose a coolant bypass valve defect affecting its model year 2019-2023 RAV4 and Corolla vehicles. 
  • Where: The class action lawsuit was filed in California federal court. 

Toyota failed to disclose that its model year 2019-2023 RAV4 and Corolla vehicles contain defective coolant bypass valves that fail prematurely, a new class action lawsuit alleges. 

Plaintiffs Geri Barrientos and Michael Foerst’s class action lawsuit claims Toyota “actively concealed material facts about the defect from consumers, including, among other things, that the vehicles were prone to the defect and require costly fixes to repair. 

“At all relevant times, Defendants knew, or through the exercise of reasonable care had reason to know, that the coolant bypass valves in the Class Vehicles were defective and that the existence of this Defect would materially affect Plaintiffs and the Class’s … decision to purchase the Class Vehicles,” the Toyota class action says. 

Barrientos and Foerst want to represent a nationwide class and Florida and California subclasses of consumers who bought or leased a model year 2019-2023 Toyota RAV4 or Corolla vehicle. 

Toyota coolant bypass valves can’t be repaired by automaker, class action claims 

Barrientos and Foerst argue Toyota is unable or unwilling to “adequately repair” the Corolla and RAV4 vehicles when the alleged coolant bypass valve defect manifests, despite allegedly being obligated to by warranty. 

“Despite the existence of the Warranties, Toyota failed to inform Plaintiffs and Class Members of the Defect and failed to adequately repair the Defect,” the Toyota class action says. 

Barrientos and Foerst claim Toyota is guilty of breach of express warranty and breach of implied warranty of merchantability, fraudulent concealment and unjust enrichment, and of violating 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

The plaintiffs demand a jury trial and request declaratory and injunctive relief and an award of punitive damages for themselves and all class members. 

A consumer filed a separate class action lawsuit against Toyota earlier this year over claims the automaker falsely advertises the value of its prepaid ToyotaCare Plus maintenance plan. 

Have you purchased or leased a model year 2019-2023 Toyota RAV4 or Corolla vehicle? Let us know in the comments.

The plaintiffs are represented by Alison M. Bernal of Nye, Stirling, Hale, Miller & Sweet, LLP and Matthew D. Schelkopf and Joseph B. Kenney of Sauder Schelkopf. 

The Toyota coolant bypass valves class action lawsuit is Barrientos, et al. v. Toyota Motor Sales, U.S.A., Inc., et al., Case No. 4:21-cv-06770, in the U.S. District Court for the Northern District of California.


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221 thoughts onToyota class action alleges some vehicles contain defective coolant bypass valves

  1. Petra Pineda says:

    My son drives a 2020 Toyota Corolla SE and at 57k miles the “engine maintenance required”message popped up with “see dealership”. He took the car in to the Toyota dealership in Orange County, CA and was told it was a problem with the coolant bypass valve and it needed to be replaced, thus, it was replaced at a cost of close to $700 (with using coupons). It was explained to me that it’s basically an electrical sensor that causes the valve to be replaced. Come on now, at 57K miles and the car is only 4 years old and its in good condition. The service history at this dealership speaks for the car, it’s not related to wear and tear. Toyota needs to issue a recall if this issue is happening to this model of car with people in general, it’s not an isolated case. The cost of repair is very expensive and you’re not really being given a choice, its not warranty covered work and you can’t risk not getting it repaired.

  2. Jessica Glance says:

    My 2020 Rav4 engine maintenance message popped up. Apparently, the valve is stuck open. Apparently would cost me over $900 if there is no recall available.

  3. Daniel Perez says:

    We purchased a 2020 RAV4 on October of 2020. Around 31k miles and was told the valve was stuck on close and needs to be fixed.

  4. Madeleine F says:

    2020 Rav4 just had this issue – check engine light came on and leaking coolant
    Just had check up earlier this year and no issues

  5. Paula Anne Viehmann says:

    My check engine light just came on. Same issue, the water coolant bypass valve is stuck. My car was in the shop at Toyota 7k miles ago and they said nothing about this issue.

  6. Carol Painter says:

    I purchased a 2021 Toyota Corolla, in Feb. 2024. Should I be worried? I have a red light that flashes every now and then on message but it goes out to fast for me to see.

  7. Maria Quintanilla says:

    Toyota maintenance light on my 2019 corolla always pop up.. I love toyota but seatbelt constantly doesn’t clicker lock and why do bumpers fall off starting with the wheel wells

  8. Rebecca Theobald says:

    I have a 2020 Corolla se with 36k miles. My engine maintenance required message just popped up.

  9. Ben Binu says:

    I just replaced the coolant valve which cost around $250 with labor charge in Dallas, Texas. C’mon Toyota

  10. Patricia Johnson says:

    My light just came on on my 2019 Rav 4 I need in on this because I can’t afford to fix it or get a new car.

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