The Brake assist and traction control light is on, and brake is to the floor and does not work well. What could be the problem?


Asked by gbennettjr Oct 19, 2013 at 02:18 PM about the 2006 Buick Lucerne CXL V8

Question type: Maintenance & Repair

4 Answers


Sounds like you have a brake fluid leak. Remove the top of the master cylinder and check the fluid level. Both chambers should be 1/4" from the top of the resivoure. If one chamber is low or empty there's the problem. Get it fixed ASAP!! Faulty brakes are nothing to fool with!! HTH. -Jim

4 out of 4 people think this is helpful.
Best Answer

I have the same issue, but the lights come and go. I have good brakes, transmission seems to be functioning well, etc... Only issues being that the brake assis and traction control lights are coming on...

22 out of 22 people think this is helpful.

All fluids are good. Interestingly, before this began to occur, there is a whirring should, that resembles when we used to have non-resister plugs and you had the radio turned on...

2 out of 2 people think this is helpful.

The clamp was made in china so it rusted out the break line and caused a leak. It has a 50k mile warranty so I got it done fast and only had to pay for the tax which was 20.00. Normally would be a 500 or so fix.

Your Answer

Add photo

Related Questions

Looking for a Used Lucerne in your area?
CarGurus has 3,382 nationwide Lucerne listings starting at $1,290.

Search Buick Lucerne Questions

Buick Lucerne Experts

#1 seastorm709
Reputation 420
#2 tenspeed
Reputation 380
#3 Lucernehappy07
Reputation 370
View All

Related Models For Sale

Used Buick LaCrosse"
432 Great Deals out of 17,021 listings starting at $2,450
Used Chevrolet Impala"
1,497 Great Deals out of 45,232 listings starting at $170
Used Buick LeSabre"
53 Great Deals out of 2,629 listings starting at $787
Used Chrysler 300"
446 Great Deals out of 22,302 listings starting at $2,500
Used Buick Park Avenue"
15 Great Deals out of 617 listings starting at $1,969
Used Cadillac DTS"
99 Great Deals out of 1,912 listings starting at $2,650
Used Ford Taurus"
367 Great Deals out of 21,251 listings starting at $1,750
Used Dodge Charger"
475 Great Deals out of 31,833 listings starting at $3,450
Used Toyota Camry"
1,203 Great Deals out of 85,007 listings starting at $1,517
Used Cadillac CTS"
333 Great Deals out of 13,936 listings starting at $1,800
Used Toyota Avalon"
227 Great Deals out of 14,269 listings starting at $1,345
Used Chevrolet Malibu"
1,092 Great Deals out of 56,648 listings starting at $1,500
Used Honda Accord"
918 Great Deals out of 73,497 listings starting at $1,000

Used Cars For Sale

2007 Buick Lucerne CXL V8 For Sale
54 listings starting at $4,499