Brake warning lights !+ABS

[tomrom101]

Hi Everyone,

I have a 2007 Yaris with ABS, I've had for about two months now. Recently the ! light comes on (like when the parking brake is engaged) and the ABS light as well. The lights seem to go away randomly. The lights came on again tonight right after the car had been parked in a relatively warm garage, and I tested the ABS tonight on the ice, and they did not work. But the brakes are working well otherwise. The manual says to stop immediately and call the dealer which is not practical! And I notice no change in the car speed or performance.

Anyone else have a similar problem? Anyone know how serious this is or if the lights can be ignored (like most warning lights!)?

Thanks!!!

Tom