Chevrolet 2003 Blazer Owner's Manual page 313

Two-Piece Composite Headlamp System
1. Open the hood.
5. Turn the bulb/socket assembly counterclockwise to
6. Put the new bulb/socket assembly into the
remove it.
headlamp assembly and turn it clockwise until it is
tight.
7.
Plug in the electrical connector.
8. Put the headlamp assembly back into the vehicle.
9. Install the two retaining clips.
IO.
Close the hood.
2. Remove the black retainer clips by lifting up.
3. Pull the headlamp assembly out.
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