 Sliding rear doors have been malfunctioning since purchased. Do not buy this model if you live in cold climates: the sliding doors freeze shut on a regular basis. Also one of the sliding doors malfunction and will not open at all (feels like the child lock is on even when it is off.) Other people with same problems can be found on edmunds.com under Toyota Sienna. Dealer wants $850.00 to fix. It really seems like a defective door yet they want consumer to cover the cost. In addition, don't ever try reaching Toyota on their 800 number unless you have time to spare. I was on hold 60 min before they picked up. Other times I hung up after 20 min. Not concerned for customer.