For 1990-2009 cars

## Lock System Replacement - Rear Compartment Buick

### Removal Procedure

1. Open the lid (1).
2. Remove the lock cylinder emblem.
3. Remove the retainer rivets (5) by drilling the rivets out using a 4 mm (5/32 in) drill bit.
4. Remove the lock cylinder (3).
5. Disconnect the theft deterrent connector (2).
6. Remove the gasket (4).

### Installation Procedure

1. Install the gasket (4) on the lock cylinder body (3).
2. Connect the theft deterrent connector (2).
3. Install the lock cylinder. Engage the lock cylinder shaft with the latch.
4. Install the retainer to the rear compartment lid by installing a 4x11 mm (5/32x7/16 in) rivet (5) through the retainer (6) and the lid.
5. Install the emblem.
6. Close the lid.

## Lock System Replacement - Rear Compartment Pontiac/Oldsmobile

### Removal Procedure

1. Open the lid (1).
2. Remove the retainer (2) by pulling the retainer off of the lock cylinder body.
3. Remove the lock cylinder (4).
4. Disconnect the theft deterrent connector (3), if equipped.
5. Remove the gasket (5).

### Installation Procedure

1. Install the gasket (5) on the lock cylinder body (4).
2. Connect the theft deterrent connector (3), if equipped.
3. Install the lock cylinder. Engage the lock cylinder shaft with the latch.
4. Install the retainer (2) to the rear compartment lid (1) by pushing the retainer over the lock cylinder body (4).
5. Close the lid.