GMC 13596817 Bulb,Turn Signal

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Firstly, you need to remove the inner fender splash shield to get rid of the halogen headlight. The second step involves locating and turning off the round cover that safeguards bulbs anti-clockwise. It will thus open it up into bulb(s). Then from the headlight housing take out a bulb as you disconnect an electrical connector. You can fix this by connecting the new bulb holder's electrical connector then properly aligning and installing it into the housing. Finally, turn it clockwise so as to lock it in position and check if the light is working or not. Lastly, install back on a cover, inner fender splash shield, wheel and lug nuts afterwards lower down your vehicle then tightens all lug nuts according to torque specifications provided for.