My 2006 RX400h (purchased pre-owned in 2008) stalled and shut down, just as described above...Orange 'check' engine symbol was in left side dash and 'Check Hybrid System" with "!" in Red triangle was in center dash. I lost acceleration and steering, though indicators (powered by 12v accessory battery) still worked ! Local mechanic scanned system and was shown "Lost connection to hybrid battery" message. It's beyond his scope of work on hybrids, so I'm now waiting to hear from dealership service, as I'm afraid to drive it (losing steering with no way to restart without turning off and back on was not safe). ANY information greatly appreciated. It's been a well maintained and great vehicle all these years.
