Brake warning light came on and stays on

MAUREEN2

MEMBER
2002 BUICK LESABRE
10,400 MILES

Just bought a used Buick lasabre. Brake warning light now on, I brought to dealer (under 30 day warranty) who checked it over for leaks, found none - checked a level in master cylinder? I have firm pedal, car stops and all that but I don't want to drive it with light on. Mechanic at Yorkville Auto says it should be fine, he could not find anything wrong with it, he did not do overly throro check to me - checkled line for leaks and found none as stated - but is now insisting it is connected with ABS (that light also on but I was not concerned with that one)
he said come pick up th car as he can't find anything wrong with it. So - I am but am also gonna take it to TP or a brake specialist and have em troubleshoot then return to dealer for repairs. Before I do that - any suggestions as to why if they looked can't find teh issue? What could it be if they checked all that - are they skipping or missing something? I realize when you sell a car cheap you don't want to spend money repairing - but it is also a safety issue as far as I am concerned.

5 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Brake switch could be defective or out of adjustment-also could be an ABS wheel sensor popping the ABS light

This guide can help

https://www.2carpros.com/articles/brake-system-warning-light-on

Please run down this guide and report back.

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Wednesday, May 23rd, 2012 AT 5:35 AM

YVONNEHILL

MEMBER
1 POST
1997 BUICK LESABRE
6 CYL
FWD
AUTOMATIC

The brake light comes on while driving and dings until I come to a complete stop. What is wrong?

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Wednesday, September 25th, 2019 AT 6:39 PM (Merged)

BMRFIXIT

MECHANIC
19,053 POSTS

Check if low on brake fluid (open the hood and check master cylinder)
if ABS light comes on too
need to check for codes as it is possible a bad hub bearing with ABS sensor

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Wednesday, September 25th, 2019 AT 6:39 PM (Merged)

NATECS

MEMBER
1 POST
2002 BUICK LESABRE
6 CYL

What fuse is associated with the emergency brake "on" warning sound, and can I pull it with out any other important systems being affected?

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Friday, December 13th, 2019 AT 11:11 AM (Merged)

WRENCHTECH

MECHANIC
20,761 POSTS

You can't. You need to resolve the problem. That light serves 3 purposes. Parking brake warning, low brake fluid warning, hydraulic problem in the brake system warning.