Oldsmobile 1999 Silhouette - Manual (Page 337)

yellow blue
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7. To replace the lamp assembly, line up and insert the
tabs on the back of the assembly with the slots in the
fender. Engage the lower clip on the front of the
lamp assembly, keeping the upper tab on the
parking/turn signal lamp assembly inboard of the
headlamp bracket tab.
8. To align the parking/turn signal lamp assembly with
the headlamp assembly, lift up the parking/turn
signal lamp assembly until the upper edge is
contacting the fender.
9. Fasten the parking/turn signal lamp assembly to the
headlamp assembly with the thumb screw removed
in Step 2.
Front Sidemarker
1. Open the hood.
2. Remove the thumb screw attaching the parking/turn
signal lamp assembly to the headlamp assembly.
3. Pull the parking/turn signal lamp assembly away
from the vehicle.
4. Unscrew the bulb socket from the lamp assembly by
turning it counterclockwise.