Mercury Mountaineer 2009 Owner's Manual page 528

Lights
Replacing high-mount brakelamp bulb
1. Remove the two screws and lamp
assembly away from the vehicle.
2. Remove the bulb holder from the
lamp assembly by depressing the
snaps.
3. Pull the bulb straight out of the
socket and push in the new bulb.
Reverse steps to reinstall bulb(s).
98
2009 Mountaineer (mnt)
Owners Guide, 1st Printing
USA (fus)