Have a 2004 Toyota Sienna XLE AWD with 60K miles on it.
It was due for an oil change and had the Maintenance light on for the last 10 days. Now yesterday the Check Engine and VSC also came on. I took the van today to a oil change plus and after the change the Maintenance light has been reset , so it is gone but the VSC + Check engine is still on.
From Toyota Tundra forum, looks like this is a symptom of Oxygen Sensor going bad. Anyone know or familiar with this situation ? Also what is the warranty on the sensors ?