Headlamp Housing Panel Replacement TrailBlazer
                    
Removal Procedure
- Remove the grille. Refer to 
Grille Replacement
.
 
- Remove the headlamp assemblies. Refer to 
Headlamp Replacement
.
 
- Release the tabs that retain the ambient temperature sensor to the headlamp housing panel.
 
- Note the wiring harness routing for installation.
 
- Remove the bolts that retain the headlamp housing panel to the core support.
 
- Remove the headlamp housing panel from the vehicle.
 
Installation Procedure
- Position the headlamp housing panel to the vehicle.
 
- Route the wiring harness through the headlamp housing panel as noted during removal.
 
Notice: Refer to Fastener Notice in the Preface section.
- Install the bolts that retain the headlamp housing panel to the core support.
 
Tighten
Tighten the bolts to 8 N·m (71 lb in).
- Install the ambient temperature sensor to the headlamp housing panel, ensure the retaining tabs are fully seated.
 
- Install the headlamp assemblies. Refer to 
Headlamp Replacement
.
 
- Install the grille. Refer to 
Grille Replacement
.
 
                            Headlamp Housing Panel Replacement Envoy, Rainier
                    
Removal Procedure
- Remove the headlamp assemblies. Refer to 
Headlamp Replacement.
 
- Remove the grille. Refer to 
Grille Replacement.
 
- Release the tabs that retain the ambient temperature sensor to the headlamp housing panel.
 
- Note the wiring harness routing for installation.
 
- Remove the bolts that retain the headlamp housing panel to the core support.
 
- Remove the headlamp housing panel from the vehicle.
 
Installation Procedure
- Position the headlamp housing panel to the vehicle.
 
- Route the wiring harness through the headlamp housing panel as noted during removal.
 
Notice: Refer to Fastener Notice in the Preface section.
- Install the bolts that retain the headlamp housing panel to the core support.
 
Tighten
Tighten the bolts to 8 N·m (71 lb in).
- Install the ambient temperature sensor to the headlamp housing panel, ensure the retaining tabs are fully seated.
 
- Install the grille. Refer to 
Grille Replacement.
 
- Install the headlamp assemblies. Refer to 
Headlamp Replacement.