OnStar Overview
EmergencyFrontal SIR System Description
The frontal supplemental inflatable restraint (SIR) system consists of the
following components:
AIR BAG indicator located in the instrument cluster
Inflatable restraint sensing and diagnostic module (SDM)
Inflatable restraint passenger presence detection system
Inflatable restraint Pass ...
Installation Procedure
Drill 8 mm (5/16 in) for plug welding along the edges of the service
panel as noted from the original
panel.
Clean and prepare the attaching surfaces for welding.
Position the body lock pillar inner panel on the vehicle.
Verify the fit of the panel.
Clamp th ...
Tracing Powder or Chalk Test
Clean the weatherstrips and the contact surfaces with cleaning solvent.
Apply powder or chalk in an unbroken line to the contact surface of the
weatherstrip surrounding the perimeter of the suspected
areas.
Close the panel completely without slamming the panel. Closing the panel
comple ...