The contact owns a 2011 Toyota Sienna. The contact stated that while driving 55 MPH, the rear driver’s and passenger’s power sliding doors failed to latch securely and opened while driving. The contact stated that the vehicle was previously repaired under NHTSA Campaign Number: 16V858000 (Structure), but the failure persisted. The vehicle was taken to the dealer, who determined that the power sliding door motor, cable, and door lock actuators needed to be replaced. The dealer had to zip-tie the power sliding doors to keep the doors closed. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 135,000.