Liftgate Lock Cylinder Coding

Fig 1: Liftgate Lock Cylinder
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: Liftgate lock cylinder reads key cut position 2 through 8.
1. Start at the position nearest the front of the cylinder (8)-also begin with the side with four spring holes (7).
Fig 2: Selecting Correct Tumblers Of Desired Code
Courtesy of GENERAL MOTORS CORP.
2. Select the correct tumblers for the desired code by the number stamped on the tumbler.
Fig 3: Installing Tumblers Into Lock Cylinder
Courtesy of GENERAL MOTORS CORP.
3. Install tumblers into lock cylinder.
Fig 4: Depressing Tumblers & Inserting Key Into Lock Cylinder
Courtesy of GENERAL MOTORS CORP.
4. Depress tumblers and insert key into lock cylinder. If lock cylinder is coded correctly, tumblers will be flush with cylinders.
Fig 5: Aligning Tumblers With Two Channels Inside Housing
Courtesy of GENERAL MOTORS CORP.
5. Insert lock cylinder into housing and align tumblers with the two channels inside housing.
6. Remove key.
Fig 6: Placing Shutter Assembly Onto Cylinder
Courtesy of GENERAL MOTORS CORP.
7. Install shutter springs (2), shutter (3) and cap (4).
Fig 7: Pawl & Retainer Clip
Courtesy of GENERAL MOTORS CORP.
8. Install Pawl (1) and retainer clip (3).

Balance of Assembly

Fig 8: Liftgate Lock Cylinder
Courtesy of GENERAL MOTORS CORP.
1. Insert cylinder (8) into housing (4).
Fig 9: Installing Tumblers Into Lock Cylinder
Courtesy of GENERAL MOTORS CORP.
2. Place compressor springs (3) into head of cylinder (4).
Fig 10: Placing Shutter Assembly Onto Cylinder
Courtesy of GENERAL MOTORS CORP.
3. Place shutter assembly (3) onto cylinder by snapping legs of shutter into place of cylinder.
4. Install the cap by aligning the notch in the cap with the large drain slot in the housing and pressing the cap until it bottoms out and snaps onto the housing.
Fig 11: Pawl & Retainer Clip
Courtesy of GENERAL MOTORS CORP.
5. Install lever onto cylinder end and place clip (3) onto lever to hold lever. Clip is formed to fit into position.
6. Place clip on lock assembly with legs up and snap over cylinder tail.
7. Use a file push on legs to snap clip into correct position.
8. Install rod clip onto lever by inserting small end into lever and forcing the clip to snap in tightly.