Question about 2008 GMC Yukon Denali
Have you checked the bulbs to see that they have not blown? Perhaps the fuse has blown?
Posted on Nov 28, 2013
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Posted on Jan 02, 2017
SOURCE: brake switch
look above the pedal and you should see a switch that looks like a plunger with wires coming out of it unplug the wire harness and then the switch should "pop" right out of the bracket or might be screwed in take it to dealer or autoparts store, some parts like that are dealer only if you can wait check out GMpartsdirect.com
Posted on Jun 28, 2009
It sounds like the brake switch, that is usually located along the shaft of the brake peddle under the dash, these sometimes are in a bracket for ajustment may not be able to depress switch. Falow starting at peddle go up to dash, you should be able to see it. Hope this helps.
Posted on Sep 08, 2009
Hey do-it your-selfer are your brakes O.K. Do you have to push youpedal down "real hard to the floor" after you hung all these parts on your Yukon! If so check to make sure the vacuum line is hooked up to the booster. Anyway the brake switch itself is not that hard. You can remove a panel under the steering column to get more room. Pull the switch up from the brake pedal bracket till it comes out. Install the new one, connect the wires. If you push it in to far, put both feet under pedal and gently pull up, you'll hear it set itself. Have someone check brake lights while you step on pedal. Good luck, best regards.
Posted on Feb 01, 2011
There is no adjustment. The park lights are on a different circuit than the brake lights.
Do you have a third brake light that works. Its also on a different circuit but works from the same switch. Do your turn signals work. They use the same filament as the brake lights.
Also, the brake light circuit goes through the multi function (turn signal) switch.
Since the brake lights and turn signal lights use the same filament in the bulbs, the brake light circuit will pass through the turn signal switch. When a turn signal is used it cancels out the brake light for that side.
Let me know if your third brake light and turn signals work in the rear.
Also, if youy have not already, check/change the bulbs. The type of sockets those lights are in also get burned so look at them well.
Posted on Oct 18, 2011
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