Low brake fluid light stays on after replacing a brake line

Tiny
AARON PRESLEY
  • MEMBER
  • 2003 BUICK RENDEZVOUS
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 230,000 MILES
Replaced the brake line going to the rear of car cannot get low brake fluid light and dinging to go off dash.
Sunday, January 16th, 2022 AT 11:58 AM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

On the side of the master cylinder there is a brake fluid level sensor. When the fluid is low that sensor sends a low fluid message.
If the fluid is at the correct level and you are getting that warning light, it could be due to a faulty sensor.
You also want to make sure that the connector is secured to the sensor and does not have any corrosion.

I have attached diagrams for your reference.

Please let me know if you have any questions.
Thank you.
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Sunday, January 16th, 2022 AT 12:04 PM

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