Pontiac 1999 Montana Owner's Manual page 343

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.
Taillamps
1. Open the liftgate.
2. Remove the two screws from the taillamp housing
on the inboard side.
3. Pull off the entire taillamp housing. The locator/retaining
pins on the outboard side are part of the lamp assembly
and will remain intact during removal.
4. Remove the bulb holder by pressing the four retaining
tabs and pulling the holder away from the assembly.
5. Replace the bulb(s) by pulling the old one(s) out and
gently pushing the new one(s) into the bulb holder socket.
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