GMC YUKON DENALI 2000 Manual page 312

Parking/Turn Signal Lamp Removal
1. Remove the two screws on the side of the
parking/turn signal bulb assembly.
2. Pull the parking/turn signal assembly toward the side
of the vehicle until the tabs are out of the grille.
6-36
A. Turn Signal Bulbs
B. Sidemarker Bulb
3. To remove a bulb, turn the socket counterclockwise
to remove it from the assembly.
4. To insert a bulb, turn the socket clockwise.
5. Install the parking/turn signal lamp assembly by
sliding it from the side of the vehicle toward the
center until the tabs fully engage the grille.
6. Install and tighten the two screws.