That's the RECAL (recalibration) you hear mentioned so much about 2000 Insights. Common problem and completely normal. From what I've heard the more frequent the RECAL the closer you are to IMA failure. I'm having RECAL's about every 150 miles during the summer and much less frequent now that the weather is cooling. My Insight has 59,000 miles.

I'm crossing my fingers I'll have complete IMA failure before 80,000 miles and get the complete system replaced under warranty.

'00 Insight "Wazabi" -75,000+ miles
'03 Toyota Matrix - 81,000+ miles
'03 HCH-CVT-OSBM-41,000+ miles (retired 04-10-06)
"I'm very secure with my little Insight, no Prius envy here."