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GMC Forum: How do you change front left turn signal bulbs on a 2009 GMC Sierra?
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Old 12-11-2010, 02:07 PM
Ronald M Ronald M is offline
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Default How do you change front left turn signal bulbs on a 2009 GMC Sierra?

It is the front left side bulbs that are located in with the headlights. You can not access them at all.
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Old 12-11-2010, 04:10 PM
Molson02536 Molson02536 is offline
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Originally Posted by Ronald M View Post
It is the front left side bulbs that are located in with the headlights. You can not access them at all.
It's a PITA to replace, think it should be covered as warranty work at the dealer since your Sierra is only 1 year old.

The PITA way, remove the radiator grille. Loosen only enough so you don't have to remove the lower outside hidden headlamp bolt.

Depress the housing support tab with a flat-bladed tool downward in order to release the headlamp assembly from the support, and pull the lamp assembly forward far enough to access the electrical connection.

Disconnect the forward lamp harness main electrical connector from the headlamp harness. From here you can get to the bulb you want to replace, if you can't get to the bulb and need to remove the whole head light.

Take out the 2 - 7mm screws, 3 push pins, and 2 pop in pins in the wheel well, and pull the wheel well lining towards the tire and remove the 2 10mm bolts that go up into the fender. When you remove them the bumper mounting bracket will come out. Also note that this image shows the location of the 3rd headlight bolt as well as a bumper mounting bracket that you need to remove.

Then pull the inner corner of the headlight out while pushing down on the bumper. Take care of the snaps along the edge of the headlight as they get caught on the bumper and can scratch it. TAKE YOUR TIME AND LOOK AT WHAT YOU ARE DOING, this is the hardest part. As you get the inner side of the headlight out rotate the headlight leaving the outside stationary. The reason for this is the bracket that was held by the 3rd headlight bolt hangs down there. You have to get the inside of the headlight out then you can move the outside in and clear the top of the headlight and the fender.

Good luck and here is a link i hope can help you understand more on where things are.
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Old 12-14-2010, 11:39 AM
PJDuramax PJDuramax is offline
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Join Date: Nov 2010
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Well said and I do know how much it is a PITA As I put the HID on the low beam first the a few weeks later did the highs. Got it down to 20 min now.
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