Brake light switch?

2000 GMC YUKON
115,000 MILES • V8 • 4WD • AUTOMATIC
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JAMESKATO
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Due to higher gas prices I have not been driving the Denali as often as i used to. A problem that started to come up the last few weeks i drove it daily was not being able to shift out of park to any gear. I had to pump the brake and try to shift at the same time. I put this on the back burner since I stopped driving it. Well the Chicago winter is here and I was thinking about using it when the roads are bad. The other night I noticed that when pressing the brake pedal, the rear tail lights would not be on. I also noticed that when the tail lights are off that I was unable to shift out of park as well, all of this while pressing the brakes. I am assuming that there is a sensor that sends a signal to the trans to shift and for the lights to turn on. What sensor would this be and how easy/hard is it to fix?

Thanks
Dec 1, 2008 at 8:24 AM
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RACEFAN966
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You need to replace the brake light switch that is on a braket just under the dash at the brake pedal arm. Does this make sense? If not let me know ok. Thanks
Dec 1, 2008 at 11:01 AM
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JAMESKATO
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I called up napa to hold the switch for me. They asked if i also needed the connector as well. I am most likely going to replace both, just to make sure. Would you know which one has a tendency to go out more? or is there a way to find out which of those I really need?

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Dec 1, 2008 at 3:21 PM
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RACEFAN966
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It is usually the switch I have never had to replace the connector. Here is a pic of it incase your not sure what it is.


https://www.2carpros.com/forum/automotive_pictures/249564_101190_2.jpg

Dec 1, 2008 at 10:40 PM
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JAMESKATO
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I picked up the switch yesterday and installed it in about 5 mins. Fixed the problem right away.

thanks for the help!
Dec 2, 2008 at 2:44 PM
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RACEFAN966
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That is great thanks for letting me know that it all worked out. Thanks for your support.
Dec 3, 2008 at 9:40 AM