Customer Support Program: Toyota has received a number of reports regarding the power sliding door rear lock assemblies on certain 2011?2018 model year Sienna vehicles. In these reports, corrosion on the position sensor of the left and/or right power sliding door rear lock assembly caused that door to exhibit one or more of the abnormal operations described below:
? During power mode closing operation, as the power sliding door reaches the nearly closed position, the door reverses and moves toward the open position. ? During power mode closing operation, the power sliding door cannot completely close and latch.
? The power mode closing operation of the power sliding door is inoperative.