Gabriel Law

Hi, the abs light and handbrake lights were on together when I was waiting for traffic light last night. I was pressing my brake when the car was completely stopped, and I felt there was some vibration on my brake, so I released it. Soon after that, those two lights, abs and handbrake light on even I released my handbrake..

similar events happened few days ago when I was normally driving on the road, no brakes applied. The lights gone off after I drive for a while. After last night tho, the lights stay on my dashboard even I turn my car on and off for times.. I've checked the brake fluid oil level which is between the min and the max, so I think it should be good.

Have u guys experienced this ? I have no idea what's going on.. any possible causes ?