Chevrolet 1999 Tahoe Owner's Manual page 320

Sidemarker Lamps with Sealed Beam and
Composite Headlamps
2. Reach through the opening and turn the sidemarker
bulb socket counterclockwise and remove it.
6-40
1. Remove the four screws
and pull out the
parking/turn signal
lamp assembly.
4. Put a new bulb into the socket and push it in until it
is tight.
5. Put the socket back into the sidemarker assembly
and turn it clockwise to tighten it.
6. Replace the parking/turn signal lamp assembly and
tighten the screws.
3. Pull the bulb straight out
of the socket.
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