Question about GMC Sierra 1500

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How do I get to the brake bulbs to change them? On a 1990 GMC siera 1/2 ton pickup.There is no screws to remove the lens.

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There are 2 screws holding the tail lamp assembly to the bed. Open your tail gate and you will see them. Once the 2 screws are removed, there are 2 clips that hold the outer part of the lamp assembly. Pull rearward FIRMLY to disengage the clips. Be careful not to twist sideways or you will break the clips/pins. After the lamp assembly is disengaged from the bed, you will see thecircuit board in the back of it. Remove the 2 screws in the circuit board and remove it to get to the bulbs.

NOTE: Circuit board failures are VERT COMMON on these vehicles. If replacing the bulb does not get your lights working, chances are pretty good that you will have to replace the circuit board. (See pictures below.)
how do I get to - dttech_26.jpg

Posted on May 23, 2011

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You need to open the tailgate to gain access to the screws that hold the taillight lenses on.there are 2 screws per lens.

Posted on May 23, 2011


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  1. Lower the tailgate.
  2. Remove the lamp assembly retaining screws.
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Pull the lens cover away from the tail light panel. Set it aside on a soft surface because the lens scratches easily.

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Change a 2007 Hyndai Sonata brake light

Get in the trunk, take loose the screws, lift the lens holder, change the bulb. Unfortunately, it's not as easy as it sounds. The hole for the lamp position is offset about 4-5 inches. You cannot get to the bulb to remove it without taking loose the lens holder. You have to remove 2 screws to do that, one of which is hidden by a piece of foam tape.
Also it is impossible to remove the lens holder without slipping a finger underneath to turn the bulb holder. I had to cut off a portion of the bulb holder to slip the lens back in. I left the screws out, as it is impossible to put them back after removal. No wonder the dealer wants $50 to change the bulb-it took me about 45 minutes.

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