Question about 2003 Pontiac Montana

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Brake lights quit working - 2003 Pontiac Montana

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  • rbeau1074 Aug 10, 2008

    i have the same problem ...found whats wrong....sort of. there is a short in the brakes and is cause the bulbs to melt. so now i'm looking for new brakes.

  • Anonymous Nov 19, 2008

    I am haveing the same problem with the lights not working. My car is at the mechanics at the moment and he said that it is some light sensor switch thing in the steering column. Not sure how much to fix as he has not called me back yet.

  • QuickFix10 May 02, 2009

    Two of three brake lights quit working on my 2001 Bonneville. The trunk brake light works and the other two don't. I heard it may be the hazard switch one the dash. Any have a solution or way to determine the cause?

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Tail lights acting insane?

We had the same issue with our 2000 Pontiac Montana. Brake lights, turn signal lights, running lights, back-up lights and emergency flasher didn’t work at all or operated at random. The cause: poorly designed aluminum contacts on the tail light circuit board and wiring harness connector arced over and disintegrated with normal use.

Pull the tail lamp assembly, remove the electrical connector and look for burned contacts on the connector plug and the connector socket (they call this long plastic piece with the socket the circuit board: it includes the four bulb sockets. Replace the circuit board and the wiring connector.

You can DIY this job with basic auto mechanical/electrical skills and tools. The two circuit boards and the two connectors set me back $230 (2009 cost) for new parts. The electrical contacts on the factory replacement parts are improved.

I needed a T-30 torx driver to remove the tail light assembly (you need this to change out bulbs, too), wire cutters, wire strippers, electrical tape and an electrical lug crimper to do the job.

Posted on Jul 11, 2009

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Flashers stay on and brake lights quit working

Posted on Dec 05, 2008

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