| Subject: | Right Side Instrument Panel Rattle Noise at Start-up or When Shifted into Gear (Tighten Screw) | 
| Models: | 2005-2007 Buick Rainier | 
| 2005-2008 Chevrolet TrailBlazer, TrailBlazer EXT | 
| 2005-2008 GMC Envoy, Envoy XL | 
| 2005-2008 Saab 9-7X | 
Some customers may comment on a right hand instrument panel rattle at start-up or when shifted into gear.
There may be an under-torqued screw in the heater case.
Retorque the heater case 5.5 mm headed screw/retainer. Tighten the screw/retainer to 2 N·m (18 lb in). Refer to the illustration above for the screw location.
For vehicles repaired under warranty, use:
Labor Operation  | Description  | Labor Time  | 
|---|---|---|
D9735*  | Retorque heater case screw  | 0.2 hr  | 
*This labor operation number is for bulletin use only. This number will not be published in the Labor Time Guide.  | ||
For vehicles repaired under warranty, use:
Labor Operation  | Description  | Failed Object  | Fault/Reason Code  | Location Code  | Warranty Type  | Repair/Action Code  | Labor Time  | 
|---|---|---|---|---|---|---|---|
8542103*  | Retorque heater case screw  | 85421  | 43  | 0  | 01  | 05  | 0.2 hr  | 
*This labor operation number is for bulletin use only. This number will not be published in STM.  | |||||||