DETROIT – Toyota is recalling 880,584 RAV4 SUVs and Lexus HS 250h sedans in the U.S. and Canada because a repair announced last year may not have solved a safety problem.

RAV4s from the 2006 through 2011 model years and the Lexus HS250h from the 2010 model year are involved in the recall.

Toyota says if rear suspension nuts aren’t tightened properly after a wheel alignment, the rear lower suspension arm can rust and separate from the vehicle, increasing the risk of a crash.

At least nine crashes and three injuries related to the problem have been reported, according to the National Highway Traffic Safety Administration.

Toyota recalled the vehicles last August for the same issue, but a spokeswoman said the repair procedure in the previous recall was incorrect.

Technicians will replace suspension arms that are loose or rusted for free.