2007 Hummer H3 steering wheel removaal

SIR Disabling and Enabling
SIR component location affects how a vehicle should be serviced. There are parts of the SIR system installed in various locations around a vehicle. To find the location of the SIR components refer to SIR Identification Views.

There are several reasons for disabling the SIR system, such as repairs to the SIR system or servicing a component near or attached to an SIR component. There are several ways to disable the SIR system depending on what type of service is being performed. The following information covers the proper procedures for disabling/enabling the SIR system.

Condition
Action

If the vehicle was involved in an accident with an air bag deployment.
Disconnect the negative battery cable(s) *. Refer to Repairs and Inspections Required After a Collision.

When performing SIR diagnostics.
Follow the appropriate SIR service manual diagnostic procedure(s) *

When removing or replacing an SIR component or a component attached to an SIR component.
Disconnect the negative battery cable(s) *

If the vehicle is suspected of having shorted electrical wires.
Disconnect the negative battery cable(s) *

When performing electrical diagnosis on components other than the SIR system.
Remove the SIR/Airbag fuse(s) when indicated by the diagnostic procedure to disable the SIR system

* DTCs will be lost when the negative battery cable is disconnected.

Preliminary Procedures
Disable the supplemental inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling.
On back side of the steering wheel shroud are 2 openings, place the wheel so that one opening is on top.
Using a blunt-ended tool, push the spring fastener inward through the access hole. Repeat the step for the other opening.

1
Module, Steering Wheel Inflatable Restraint

Tip

Release the connector position assurance (CPA) retainer.
Disconnect the electrical connectors.

Make alignment marks in order to note the relationship between the steering wheel and the steering shaft.

Loosen the steering wheel nut 2 complete rotations.
Carefully pull on the steering wheel until it comes loose from the steering column.
Remove the steering wheel nut (2).
Remove the steering wheel from the steering column using caution to guide the electrical connectors (1, 3) through it without damaging them.
Installation Procedure
Notice: Improper alignment of the steering wheel to the steering column shaft will cause vehicle damage. In order to prevent vehicle damage, ensure that the steering wheel is properly indexed to the steering column before tightening the steering wheel nut.

If installing a new steering wheel perform the following:
1.1. Ensure the front wheels are still set in the straight-ahead position.

1.2. Position the steering wheel near the steering shaft with the arrow (1) at the 12 o'clock position.

1.3. Ensure that proper tooth alignment between the steering wheel and the steering shaft has been achieved (2).

If installing the original steering wheel perform the following:
2.1. Position the steering wheel to the steering column.

2.2. Align the marks made during the removal of the steering wheel.

Ensure the electrical connectors (1, 3) are not pinched between the steering column and the steering wheel.
Notice: Refer to Fastener Notice in the Preface section.

Install the steering wheel nut (2).
Tighten
Tighten the nut to 35 N Â m (26 lb ft).

Install the inflatable restraint steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement.