How to Replace the Tail Light Assembly in a 1999 Pontiac Montana
- 1). Open the rear lift gate on the Montana. Remove the two retaining screws on the inner edge of the light assembly with a Torx screwdriver.
- 2). Slide the light assembly forward away from the van until you can reach the wiring harness connection. Squeeze the tabs on the connector and pull it apart. Set the old taillight aside.
- 3). Push the wiring connector together on the new light assembly. Slide the new assembly into the van. Secure the retaining screws with a Torx screwdriver.
- 4). Repeat the process to replace the opposite taillight assembly. Close the rear hatch and test the taillights.