One problem related to air bag on-off switch has been reported for the 2010 Toyota Prius. The most recently reported issues are listed below.
2010 Toyota Prius. Consumer writes in regards to vehicle air bag switch. The consumer requested to have an air bag on-off switch installed in his vehicle. The consumer was involved in an accident, with his previous vehicle and it was struck on the left side just in front of the rear wheel, damaging the body and rear door, but not seriously. That was the only damage to the vehicle. However, the upper left air bag deployed striking him on the side of the head breaking his neck.