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How to make brake warning light go off and make cruise work

Tiny
BIGGE
  • MEMBER
  • 2000 OLDSMOBILE ALERO
  • 133,000 MILES
I replaced the front brake calipers and now the brake warning light stays on and also the cruise control will not set, all after the brake job, the brakes work fine. Is there a way to reset brakes and get cruise to work?
Saturday, June 16th, 2012 AT 3:59 PM

13 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
So the brake light was not on before you replaced the calipers? You should not have to reset the brake light. Did you make sure the brake fluid level was not low?
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Saturday, June 16th, 2012 AT 5:39 PM
Tiny
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Fluid is good and brakes working properly. Just light on and cruise still is not working.
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Saturday, June 16th, 2012 AT 7:54 PM
Tiny
SATURNTECH9
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So it is the brake light and not the ABS light?
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Sunday, June 17th, 2012 AT 3:23 AM
Tiny
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Yes it is the brake not ABS.
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Sunday, June 17th, 2012 AT 10:51 AM
Tiny
SATURNTECH9
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I posted the description of the brake warning light for you. It is turned on by low brake fluid or e-brake on. So if the e-brake is released and brake fluid is not low you could have a switch issue.
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Sunday, June 17th, 2012 AT 4:33 PM
Tiny
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But what would make cruise stop working from the brake system? Is there a way to reset brake light is brake fluid if it is not low?
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Monday, June 18th, 2012 AT 3:55 PM
Tiny
SATURNTECH9
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Not sure about the cruise control not working. You would have to diagnose that separate. When the fluid level is full the light should turn off. I suspect the float in the master cylinder is sticking since you said this happened after you replaced the calipers.
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Monday, June 18th, 2012 AT 4:04 PM
Tiny
WRENCHTECH
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I agree with Saturntech9. Try rapping on the side of the brake fluid reservoir with a screwdriver handle and see if it puts the light out.
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Monday, June 18th, 2012 AT 4:18 PM
Tiny
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Thanks guys. If all else fails break out the hammer. It worked and cruise went to working too, Thanks for the help.
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Monday, June 18th, 2012 AT 5:46 PM
Tiny
SATURNTECH9
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You are welcome. So you smacked the cruise module and it worked?
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Monday, June 18th, 2012 AT 5:55 PM
Tiny
WRENCHTECH
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No, he smacked the reservoir to make the float pop up.
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Monday, June 18th, 2012 AT 6:06 PM
Tiny
SATURNTECH9
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Okay, so the float unstuck fixed both issues. Nice.
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Monday, June 18th, 2012 AT 11:56 PM
Tiny
WRENCHTECH
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Yeah, the PCM will inhibit the cruise as long as the brake light is on.
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Monday, June 18th, 2012 AT 11:59 PM

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