If the first procedure doesn't allow room then follow the second one and remove the headlamp itself ok.

Headlamp Bulb Replacement (TrailBlazer)

Removal Procedure

Caution: Halogen bulbs contain gas under pressure. Handling a bulb improperly could cause it to shatter into flying glass fragments. To help avoid personal injury:

Notice: Avoid touching the bulb or letting the bulb come in contact with anything damp. Oil from your skin or moisture on the bulb can cause the bulb to explode when the bulb is turned on. If either comes in contact with the bulb, clean the bulb with alcohol or a suitable degreaser and wipe the bulb dry.

1. Open the hood.
   
   
   
2. Remove the access cover from the rear of the headlamp.
3. Rotate the bulb and socket counterclockwise in order to remove the bulb and socket from the housing.
4. Disconnect the electrical connector from the socket.

Installation Procedure

Important:

1. Connect the electrical connector to the socket.
2. Position the bulb and socket to the headlamp.
3. Install the bulb and socket to the housing by rotating the bulb and socket clockwise, locking the retaining tabs to the housing.
4. Install the access cover to the rear of the headlamp assembly
5. Grille Replacement (TrailBlazer)

   Removal Procedure

   
   
   
   
   1. Use a flat-bladed tool in order to release the clips that retain the grille to the headlamp housing panel.
   2. Remove the grille from the vehicle.

   Installation Procedure

   
   
   
   
   1. Install the grille to the vehicle.
   2. Align the retaining clips on the grille with the slots in the headlamp housing panel.
   3. Fully install the retaining clips into the headlamp housing panel.
   4. Headlamp Replacement (TrailBlazer)

      Removal Procedure

      1. Open and support the hood.
      2. Remove the grille. Refer to Grille Replacement .
         
         
         
      3. Pull up on the retaining tabs (1) in order to remove the headlamp assembly from the headlamp panel.
      4. Disconnect the headlamp leveling electrical connector from the motor/actuator if equipped.
      5. Disconnect the headlamp electrical connector (2) from the headlamp assembly.
      6. Remove the side marker socket (4) from the headlamp assembly.
      7. Remove the park/turn socket (3) from the headlamp assembly.
      8. Remove the headlamp assembly from the headlamp panel.

      Installation Procedure

      
      
      
      
      1. Position the headlamp assembly to the headlamp panel.
      2. Index and seat the tabs on the park/turn socket (3) to the headlamp assembly.
      3. Index and seat the tabs on the side marker socket (4) to the headlamp assembly.
      4. Connect the headlamp electrical connector (2).
      5. Connect the headlamp leveling electrical connector to the motor/actuator if equipped.
      6. Align and install the 4 locator pins on the back of the headlamp assembly into the retaining tab holes.
      7. Push down on the retaining tabs (1) in order to lock the headlamp assembly into the headlamp panel.
      8. Install the grille. Refer to Grille Replacement .
      9. Close the hood.