Last post on Feb 29, 2012 at 3:08 PM
You are in the Maintenance & Repair
What is this discussion about?
Brakes, Electrical, Engine, Coupe, Convertible, Hatchback, Truck, Sedan, Wagon, SUV, Van
This topic will hopefully allow the more knowledgable of our community members share what they know with those seeking a good explanation for "how things work" in a car; or, this is a good place for equally knowledgable people to discuss the finer points of a technology.
#395 of 401 My ABS light won't go off - Buick Regal
Feb 27, 2010 (10:48 pm)
I left my Buick Regal parked for 3 months and when I started driving it again, the ABS light was on so I had the brakes replaced. Now it comes on sometimes, sometimes it doesn't. Any suggestions on what else I could try cheaply to solve the problem?
#396 of 401 Re: My ABS light won't go off - Buick Regal [mary_smith]
Feb 28, 2010 (12:54 am)
For sure I would not take it back to the mechanic that replaced your brakes.
ABS light very seldom (or every) should have anything to do with needing brakes.
#397 of 401 Re: My ABS light won't go off - Buick Regal [mary_smith]
Feb 28, 2010 (2:43 am)
The ABS system, has sensors on each of the wheels, which detects individual wheel speed. I guess a good analogy would be for you to picture a bicycle sprocket. As you turn the pedals, a sprocket turns that has teeth. A sensor picks up the metal teeth going by, and from that knows how fast the sprocket is turning.
There are a number of things that are checked by the ABS system that could turn on the ABS error light, but one of the common things is when the computer detects that it isn't receiving the signal from one of the sensors. One of the things you could check, is whether each of the sensors looked like it is mounted correctly, and the connectors are tight.
A dealership can check those (and the rest of the ABS system) by hooking up a service computer to the vehicle computer......and testing each of the ABS system compenents. You should really consider having the dealership properly diagnose the problem, as opposed to randomly replacing brake parts.
#398 of 401 Re: My ABS light won't go off - Buick Regal [kiawah]
Feb 28, 2010 (8:44 pm)
Thanks for your great analogy! With what you have told me and the information I found at the ABS page on the freeautomechanic.com website, I think I understand now. I was beginning to think that ABS might mean something besides anti-lock brake system. It just seems weird to me that sometimes I can drive it for a few days without the light being on and then for several days it just stays lit. Almost makes me wonder if it should be lit all the time and it might just be a loose bulb that makes it go off on occasion. I think I will take it to the dealership to see what they say. I haven't noticed any problems at all with my brakes whether the light is on or not but since I have young daughters who ride around with me, I want to be sure they are safe.
Feb 29, 2012 (3:08 pm)
A reporter is looking to hear from consumers who own a "code reader" - either an app or an appliance that allows the user to tap into his/her car's diagnostic system to understand why the Check Engine light etc is on, and perhaps shut it off. If you have used one of these apps or systems and are willing to share your story with a reporter, please email PRedmunds.com no later than Monday, March 5, 2012 with your daytime contact information.