I have a 2006 Prius with 210k on it. And here are a few issues I have going on with it. Intermittent ABS, BRAKE, VSC - Comes on. Turn car on and off, its gone. Intermittent Right Side HID - On/off. Sometimes stays on all day, other times turns off. Here is the information I am getting from battery voltage. Regular voltage is 12.4+, under load its been at 11.5v also here are some codes I got for the ABS, VSC, Brake lights: C0200 RIGHT WHEEL SPEED SENSOR C0205 LEFT WHEEL SPEED SENSOR C1249 STOP LIGHT SWITCH OPEN CIRCUIT I hope that was thorough enough. I hear and read a mixture of things, a 12v battery could be causing ALL of this. Some say odds of both front sensors going out is minimal, but, who knows. I will try cleaning them tomorrow and see if that helps. Battery replacement time? Thanks a bunch!
Good! I think you are saying no warning lights. If the warning lights come back, Fotomoto at Post#3 re: brake actuator is a possible explanation.