GMC 1996 Sierra Owner's Manual page 289

Composite Headlampc
1. Remove the two
screws at the top of
the radiator support.
2. Pull the headlamp lens assembly out.
3. Unplug the electrical connector.
4. Turn the bulb
counterclockwise and
remove it.
5 . Put the new bulb in the lens assembly and turn it to
the right until it is tight.
6. Plug in the electrical connector.
7. Put the headlamp lens assembly back into the
vehicle. Install and tighten the
two
screws.
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