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Home › Hummer › 2008 › H3 Base, Automatic › Repair and Diagnosis › External Pages › Different car › Section 455 (Supplemental Inflatable Restraint System) › Repair Instructions › Steering Wheel Inflatable Restraint Module Coil Replacement › Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2010 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Steering Wheel, Shaft & Nut
    GM294367Courtesy of GENERAL MOTORS CORP.
    WARNING: Refer to Brake Fluid Irritant Warning .
  1. Disable the SIR System. Refer to SIR Disabling and Enabling .
    2. CAUTION: With wheels of the vehicle facing straight ahead, secure the steering wheel utilizing steering column anti-rotation pin, steering column lock, or a strap to prevent rotation. Locking of the steering column will prevent damage and a possible malfunction of the SIR system. The steering wheel must be secured in position before disconnecting the following components:
    • The steering column
    • The intermediate shaft(s)
    • The steering gear

    After disconnecting these components, do not rotate the steering wheel or move the front tires and wheels. Failure to follow this procedure may cause the SIR coil assembly to become un-centered and cause possible damage to the SIR coil. If you think the SIR coil has became un-centered, refer to your specific SIR coil's centering procedure to re-center SIR Coil.
  2. Verify the following before removing the SIR coil:
    • The wheels on the vehicle are straight ahead.
    • That J 42640  is installed or the ignition switch is in the LOCK position.
  3. Remove the steering wheel from the steering shaft. Refer to Steering Wheel Replacement .
    4. Fig 2: Removing/Installing Tilt Lever
    GM82174Courtesy of GENERAL MOTORS CORP.
  4. On vehicles with a tilt column, pull the tilt lever straight out from the steering column.
    5. Fig 3: Removing/Installing Lower Trim Cover
    GM283270Courtesy of GENERAL MOTORS CORP.
  5. Remove 2 TORX® head screws (1) from the lower trim cover (2).
  6. Remove the lower trim cover (2).
    7. Fig 4: Removing/Installing Upper Trim Cover
    GM283271Courtesy of GENERAL MOTORS CORP.
  7. Remove 2 TORX® head screws (2) from the upper trim cover (1).
  8. Remove the upper trim cover (1).
    9. Fig 5: SIR Coil, Steering Shaft Assembly & Retaining Ring
    GM322951Courtesy of GENERAL MOTORS CORP.
  9. Remove the wire harness straps from the steering wheel column wire harness.
  10. Remove the retaining ring (3).
  11. Remove the SIR coil (4) from the steering shaft.
  12. If replacing, discard the SIR coil.
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