One problem related to underhood wiring has been reported for the 2006 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Toyota Sienna based on all problems reported for the 2006 Sienna.
I recently had my airbag light flashing on my dash and the dealership said both rh and lh air bag wiring harnesses with sensors will need to be replaced. The cost to fix $5335. I recently had my power sliding door go out. The door opened but would not close. The cost to fix $1800.