Anna Bradley-Smith  |  September 24, 2021

Category: Auto News

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toyota prius
(Photo Credit: Bjoern Wylezich/Shutterstock)

Toyota Prius Defect Class Action Overview: 

  • Who: Toyota has been hit with a class action lawsuit over an alleged defect in its Prius HVAC systems.
  • What: Drivers allege that the defect fills cars with “an overpowering urine smell” or one comparable to “a pile of rank, sweaty socks.”
  • Where: The class action is for drivers nationwide.

An HVAC default in some Toyota Prius models has filled cars with “an overpowering urine smell” or one comparable to “a pile of rank, sweaty socks” due to noxious fumes being released, a new class action lawsuit alleges.

The class action was filed in California on Wednesday by lead plaintiff James Bettles who alleges that Toyota and affiliates knowingly sold the defective cars, failed to warn consumers about the issue, and then refused to fix the problem – violating state and federal laws.

Bettles purchased a new 2016 Toyota Prius in December 2016 in Sacramento and by spring of 2017 he began noticing a foul odor emanating from the air-conditioning, the claim explains.

“At first, Plaintiff thought that the odor was being caused by the shoes and socks he was wearing, and proceeded to wash his socks for several cycles to make sure they were clean, and thereafter purchase new footwear,” the claim reads.

“The foul odor persisted, however, and, in fact, became worse as Summer 2017 approached.”

Despite taking the car back to the dealer twice and discussing the smell he was either dismissed or told there was no fix for the issue and he had to either become more tolerant or do insufficient fixes, such as use air freshener, the lawsuit explains.

Toyota Prius HVAC Defect Causes ‘Moisture,’ ‘Mold’ To Accumulate 

According to the lawsuit, 2006-2020 Toyota Prius, 2017- 2020 Toyota Prius Prime, 2010-2015 Toyota PHV, 2012-2016 Toyota Prius C, and 2012-2017 Prius V all have an identical and inherent design defect in the Heating, Ventilation, and Air Conditioning (HVAC) system. The defect allows moisture and microbial growth to accumulate in the HVAC system causing it to emit foul, noxious, and toxic odors into the passenger compartments.

This then exposes those in the car to a safety risk from the mold and other contaminants that are emitted in the air circulated through the HVAC system, the lawsuit alleges.

Bettles describes one driver saying the odor was “an overpowering urine smell coming out of the vents,” and smelt like “somehow an animal must have gotten into the engine, urinated and the urine and bacteria has built up somewhere in the car.”

Bettles himself said the odor was like smelling a “pile of rank, sweaty socks.”

Despite Toyota being fully aware of the issue and releasing numerous Technical Service Bulletins to its network of distributors and dealerships describing the foul odors, the company continued to mislead consumers about the cars as it “actively, and affirmatively omitted and concealed the existence of the Defective HVAC System to increase its profits by selling additional vehicles and charging consumers for special filters, HVAC servicing, and other ‘repair’ fees,” the claim alleges.

“Additionally, Toyota has refused to issue a recall and has not remedied the Defect and/or compensated Plaintiff or Class members for their damages resulting from the material Defect.”

Bettles wants to represent Prius drivers nationwide and a Class of California drivers. He is suing for fraudulent concealment, unjust enrichment, breach of warranty, and violations of the Magnuson Moss Warranty Act, California’s Unfair Competition Law, California’s Consumers Legal Remedies Act, and California’s Song-Beverly Consumer Warranty Act. He seeks certification of the Class, declaratory relief, damages, restitution, reimbursement, interest, legal fees and costs, and a jury trial.

Do you own a Toyota Prius? Have you ever had odd smells come from your car vents? Let us know your experience in the comments section below!

Bettles is represented by Scott Edelsberg of Edelsberg Law, P.A; Jason H. Alperstein, Jeff Ostrow, and Kristen Lake Cardoso of Kopelowitz Ostrow Ferguson Weiselberg Gilbert; and Steven G. Calamusa and Rachel A. Bentley of Gordon & Partners, P.A.

 The Toyota Prius HVAC Defect Class Action Lawsuit is Bettles v. Toyota Motor Corporation, et al., Case No. 2:21-cv-07560 in the U.S. District Court for the Central District of California. 


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184 thoughts onToyota Priuses Smell Like Urine, Sweaty Socks, Class Action Lawsuit Alleges

  1. Jessa Green says:

    Yep – recently bought a 2016 Prius and from the start the AC smells like sour gum socks and urine EVERY time we turn the AC on.

    If there’s a class action suit to get Toyota to fix this, please add me.

  2. Denise Messina says:

    I just had my Prius at the mechanic due to a nasty vinegar type smell… I’ve owned about 10 cars in my lifetime, and this has never happened.

  3. Denise Messina says:

    I just had my 2914 Prius at the mechanic due to a nasty vinegar type smell… I’ve owned about 10 cars in my lifetime, and this has never happened.

  4. Laura La Rosa says:

    Our 2007 Prius smells as well and makes us feel sick and nauseous.

  5. Susan Eastman says:

    My Prius prime plug in just today started having ac smells, very earthy.
    It is 2017 with less than 20k miles.

  6. Yolanda Williamson says:

    I now own a 2020 Prius and when I bought it two years ago I was gobsmacked that the dang car had that same foul smell that my 2008 Prius had.
    The 2008 was born in NEW MEXICO and a neighbour who also had a 2008 had the same disgusting smell. Toyota would not address the situation just sideways changing my finger which of course never did a thing.
    Then buying my 2020 in Canada I was expecting to NOT have the same situation and it DOES! As much as I hate the smell of car freshener which I constantly now use, it’s better than the horrid smell the Toyota emits!!

    1. Yolanda says:

      Darn spell check. Hopefully you correct the above
      Born sb BOUGHT
      Sideways sb ALWAYS
      Finger sb FILTER

  7. dr nurulhasan says:

    guys,
    I am sending a letter to toyota HQ re this smells. Any advice?

  8. Meloney says:

    I can’t believe there’s finally an answer to why there’s a smell of urine in the car!! I have a 2014 Prius and the smell isn’t always there, but when it is, it’s overpowering and gross!

    1. LaTresa Dewberry says:

      Yes I am just starting to experience the “smell” and its horrible. Seems like it is toxic. I dont like the way I feel after smelling it. What has happened with you take your car back to Toyota? I know a new air filter and then what do they try next?

  9. Linda Davis says:

    I have this awful smell and it is affecting my health. It gets in my clothing and I have to wash my hair and change my clothes every time I ride in it. I have a 2014 Prius

  10. Susan says:

    Our family purchased a 2021 Prius in August 2021. About a month ago I noticed a strange smell coming from the vent when I turned the AC on. It was a sour smell as if a dog had thrown up. It smells horrible.

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