Centering Supplemental Inflatable Restraint Coil

NOTE: Supplemental Inflatable Restraint (SIR) coil and multifunction switch are not serviced separately.

1. If SIR coil assembly has been removed from steering column and is being reinstalled, go to next step. NEW SIR coil assemblies are supplied pre-centered.
2. Ensure front wheels are in straight-ahead position when installing or removing SIR coil assembly. If SIR coil is removed without wheels in straight-ahead position and steering wheel has not been moved, same SIR coil can be reinstalled if SIR coil hub has not been rotated.
3. If SIR coil has been moved, gently turn SIR coil counterclockwise by hand until it reaches its stop. Turn SIR coil clockwise 2 1/2 turns and align arrows. SIR coil is now centered and may be installed with wheels in straight-ahead position. See Fig 1 .

Fig 1: Centering Supplemental Inflatable Restraint Coil Assembly

Courtesy of GENERAL MOTORS CORP.