Montgomery law firm Beasley Allen Crow Methvin Portis & Miles PC recently filed a lawsuit against Toyota Motor Corp. and Toyota Motor Sales USA on behalf of more than 500,000 Toyota Prius and Lexus Hybrid owners.

The firm, which filed the case in the U.S. District Court Middle District of Alabama, alleges that Toyota concealed facts relating to the defects in the accelerator braking system. Beasley also filed complaints of breach of implied warranty of merchantability, fraudulent concealment, unjust enrichment and breach of the covenant of good faith and fair dealing, according to a written statement.

“Toyota knew about these defects long before they issued a recall, yet they continued to market the vehicles as safe and reliable,” said Dee Miles, head of Beasley Allen’s consumer fraud and class action department.

Toyota Motor Corp. (NYSE:TM) has been under scrutiny recently after initiating several recalls on millions of vehicles. One of the most recent recalls included fixing accelerator pedals that began to stick over time, preventing drivers from stopping with their brakes, according to news reports.