One problem related to engine failure has been reported for the 2006 Toyota Scion Xb. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Toyota Scion Xb based on all problems reported for the 2006 Scion Xb.
Engine: on Wednesday February 12, 2010 my 2006 Scion Xb, while driving on the freeway at approx 70mph. My engine shut off - no power - none!! no warning - just shut off!!! -while driving on the freeway. Aside from vehicles attempting to avoid hitting my vehicle and attempting to also avoid hitting others- I could have been killed and this complete engine failure while driving could have killed others as well. Of course I was over my warranty for this partcular coverage by approx 1,000 miles. Guess what the Toyota dealer took care of the issue, which they stated was the "crank sensor". They seeemed hesitant to fully provide an explanation, which of course I want and need as I am very hesitant to drive the vehicle. There has to be some sort of warning, you can't just be driving and have your engine shut off, engine won't turn-over, no steering, very little braking ability! I am very concerned, very - the warranty for this type of service was expired, although the car was repaired by the Toyota dealer service department and I appreciate this more than you know. I asked for answers and their lack of communication/information concerns me.