WARNING: This modification requires the removal, disassembly, modification, reassembly, and reinstallation of the trunk mounted lock cylinder. If you are not entirely confident in your ability to do this you should not attempt it. If performed improperly, you could damage the lock enough to make it unuseable, requiring you to purchase a new lock cylinder.
When you remove the inside trunk panel the back of the lock is exposed.Twist the plastic clip downwards that holds the connecting rod, then pullthe rod from the lever arm. Now remove the E-clip (using pliers and/orsharp screwdriver) holding the lever arm and spacers, then remove the armand spacers and set them aside. Be sure to remember the order they were in!Two bolts hold the lock in place, remove them with a 10mm socket. The lockshould now be free. Reach up under the rear bumper and pull the lockcylinder out, but it will require some effort because the bumper fits tightlyagainst the cylinder.STEP 2: DISASSEMBLE LOCK CYLINDER
Now that the cylinder is free, you have to disassemble it. This is the onlytricky part, but not too bad. Remove the polished cap (where the key goes in) using a small(narrow) screwdriver. Pry under the edge of the cap wherethe two indentations are to free the cap. The cap will bend somewhat butyou should be able to get it off with out much distortion. The cap can beeasily straightened with needle-nosed pliers once it is removed. The keydoor assembly will be under the cap, set the cap and door assembly aside.Now insert the key into the lock tumbler(the center part). Be sure to holdthe key in the tumbler, and slowly remove the tumbler from the outer casing.IF THE KEY COMES OUT, YOUR LOCK WILL COME APART!!! Set the tumbler/keycombination aside, keeping the key in!STEP 3: GRIND OFF METAL TAB PREVENTING ROTATION
The danger is now mostly over. Clean any excess grease out of the lock casing. Examine the tumbler and compare with the photos below to determine which tab needs to be removed. Use a Dremel or similar tool to grind offthe tab shown in the photos. WEAR EYE PROTECTION WHILE GRINDING!
Be sure not to leave any rough edges, andclean all metal fragments out of the casing before re-inserting the tumbler.Insert the tumbler with key still inside and verify that key now turns bothdirections smoothly. If it seems to be snagging when turningcounter-clockwise remove tumbler/key and verify that all of the tab wasremoved. If the key turns smoothly you are ready to put it back together.STEP 4: REASSEMBLE LOCK CYLINDER
Insert the tumbler COMPLETELY in the casing, and carefully remove the key leavingthe tumbler in the casing. Place the key door assembly back on top of thecylinder assembly and place the polished cap back on the assembly. Usepliers to press the sides of the cap down if necessary, ensuring the capwill stay on the cylinder. Now insert the key and test rotation one moretime before reinstalling in car.STEP 5: INSTALL LOCK CYLINDER INTO CAR
Reinstall lock cylinder in car, reversing removal steps. It will bedifficult to get the cylinder back in place because the bumper is so closeto the car. Keep trying and you will get it eventually. There is a foampadding ring around the key hole in the bumper, I have found it is helpfulto remove and discard this ring since it tends to interfere withinstallation of the cylinder. Once cylinder is in place, replace 10mmbolts. Replace spacers and lever arm on lock shaft in correct order, andsecure with E-clip. Place connecting rod back in hole on lock arm androtate plastic clip until rod is locked in place. Replace trunk innerpanel.YOU ARE DONE!
To use the locking feature, the trunk lid must be closed. Verify theconsole release still works properly. Now close trunk lid, insert key, andturn key counter-clockwise. You should hear and feel a small "pop". Thisis the console release being disabled. Pull the console release, it shouldnow do nothing. Place key in trunk lock and turn clockwise, opening trunk.You will propably hear two "pops", the first is the console release beingreactivated, the second is the trunk latch opening. Close trunk lid andpull console release to verify it now opens trunk. THAT'S IT!
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