Emergency Brake Light Question

Discuss your 2000-2005 Bonneville SE, SLE, SSEi, Buick Le Sabre 00-05 and Buick Park Avenue 97-05. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
Post Reply
Orbitz
SE Member
SE Member
Posts: 24
Joined: Sat Nov 29, 2008 11:45 pm
Year and Trim: 2000 Pontiac Bonneville SLE
Location: Ontario, Canada

Emergency Brake Light Question

Post by Orbitz »

Hi all. Been a while, but I have quick question. Noticed these last few months that the emergency brake light keeps coming on. Emergency brake is fully off, and the DIC is confirming that. Emergency brake works great. Also noticed the TRAC OFF and ABS lights are on. Had the car scanned, and "right front wheel speed sensor input 0" is showing, so I know I need a new wheel bearing, but could the emergency brake light being on have anything to do with this?

I have searched and searched, but couldn't find much about this. I did check to see if the master cylinder is leaking, and there are no signs of leaks. Also, the emergency light is intermittent, thought as the days go by, it is on more and more (the car also chimes when it pops on).

Based on one post, I unplugged the sensor going into the master cylinder when the light was on, to see if the light would turn off. It stayed on.

Brakes work amazing. Pads and rotors are only weeks old (they were put on after the light problem started), and the car will stop on a dime. I do notice that at a stop, I can press the brake peddle almost to the floor, and I can't recall if this is normal or not. During actual braking, the peddle works normal. I have also noticed at times when braking, that the peddle will vibrate for a split second, almost as if the ABS has been engaged, but the ABS hasn't worked in months due to the wheel bearing speed sensor.

Does this sound like a bad master cylinder?

Any help is greatly appreciated :)
- 2000 Pontiac Bonneville SLE - Black on Black, - 165,000 km's
User avatar
nos4blood70
Certified Bonneville Nut
Certified Bonneville Nut
Posts: 9522
Joined: Mon May 10, 2010 6:11 pm
Year and Trim: 2003 SLE
Location: Chicago, IL

Re: Emergency Brake Light Question

Post by nos4blood70 »

Just replace the wheel bearing. It will cure the brake light too, so do not worry!
-Car Guy Carl
"Penelope" - 2003 SLE - 250k Miles
"Sydney" - 2000 Honda S2000 - 101k miles
Image
Orbitz
SE Member
SE Member
Posts: 24
Joined: Sat Nov 29, 2008 11:45 pm
Year and Trim: 2000 Pontiac Bonneville SLE
Location: Ontario, Canada

Re: Emergency Brake Light Question

Post by Orbitz »

Much appreciated. I will have the bearing replaced and hopefully that will solve the problem. Thanks!!
- 2000 Pontiac Bonneville SLE - Black on Black, - 165,000 km's
2kg4u
SLE Member
SLE Member
Posts: 32
Joined: Sat Oct 03, 2009 12:07 am
Year and Trim: 2001 SSEi

Re: Emergency Brake Light Question

Post by 2kg4u »

If changing the wheel bearing doesn't fix the E brake light issue, check the small plunger switch at the top of the E brake pedal and make sure it is engaging the pedal properly and is functioning.
2001 Bonneville SSEi - no mods
1999 Trans Am WS6 M6 - LS6 block, LSX intake, P1SC supercharger, cam, rockers, Kooks headers, high output oil pump, double chain timing gear, 8 rib pullies, remote clutch bleed, bullet proof bell housing, catch can, 60# injectors, wide band O2, clutch, and lots of other stuff I can't remember right now
Post Reply