Question about 1990 Geo Prizm

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Geo Prizm brake lights

The brake lights work ok during daylight but when the head lights and tail lights are on the brake lights fail.

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  • coledanus Sep 21, 2008

    i have a 96 prizm lsi and the brake lights do the same for me and when my car is off and i press the brake my car dings and when my headlights are on my brake lights dont work. im getting tired of getting fix it tickets so plz help me

  • Anonymous Mar 30, 2014

    BRAKE LIGHTS BURN OUT OFTEN AND AFFECTS DASH LIGHTS ALSO

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I had the same problem, what I did to fix it was as follows:

  • Removed the plastic light holders from the tail lamp.
  • On each of the three bulbs there is a ground wire that is attached to the plastic light holder via a screw. Remove these connections and clean, I used some very light sand paper.
  • Reassemble, Worked like a Charm for me, and I save a $90 charge from Firestone by doing it myself...

Posted on Apr 13, 2009

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Hi,

Possibly loose grounding on the taillight assembly. Most taillights operate with dual filament bulb (3 terminal). The metal body of the bulb bottom is usually connected to the body ground. The correct procedure would be to trace the wiring harness from the taillight and determine which is the ground and verify that the contacts are clean and free of corrosion. An alternative is to add a grounding wire from said metal body of the taillight bulb and attached to any bare metal/chassis/body in the rear.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Posted on Jun 07, 2008

  • uclakathy Sep 17, 2010

    I have the same problem. If i press the brake pedal the car goes ding (like it does to tell you the lights are on or your keys are in the ignition). This happens without the keys in the ignition and the dash also lights up. When my headlights are on, my brake lights are on without my foot being on the brake.

    I'm going to try the things posted here. hope it works.

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