One problem related to air bag has been reported for the 1999 Toyota Sienna. The most recently reported issues are listed below.
While traveling at 20 to 30 mph consumer's vehicle was involved in a collision with another driver that was backing out in the middle of traffic. Upon impact, none of the airbags deployed.
| Air Bag Not Deploy problems | |
| Air Bag problems | |
| Air Bag On-off Switch problems |