One problem related to electrical failure has been reported for the 2011 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Toyota Sienna based on all problems reported for the 2011 Sienna.
Electrical failure the clock loses time when you turn off engine then when you start engine it will give you warning to check vsc , srs airbag is off , radio is off too. The autimatic lock is not functioning we have to lock doors manually. This is frustrating because we have a brand new car!!!.