Hummer H3. Manual — part 594

Fig. 40: View Of Multifunction Switch/SIR Coil Assembly
Courtesy of GENERAL MOTORS CORP.

1. Slide the inflatable restraint steering wheel module coil onto the steering column.

2. Install the inflatable restraint steering wheel module coil bolts.

Tighten: Tighten the bolts to 4.5 N.m (40 lb in).

If reusing the existing inflatable restraint steering wheel
module coil, you must center the inflatable restraint steering
wheel module coil. Refer to Inflatable Restraint Steering
Wheel Module Coil Centering.

NOTE:

Refer to Fastener Notice .

2007 Hummer H3

2007 RESTRAINTS Supplemental Inflatable Restraints - H3

Fig. 41: View Of Wire Harness Straps & Assembly
Courtesy of GENERAL MOTORS CORP.

3. Route the wiring harness assembly down the steering column.

4. Connect any electrical connectors as needed.

5. Install the wire harness straps to the wire harness assembly.

6. Remove the centering tab from the inflatable restraint steering wheel module coil, if

equipped.

7. Install the steering column trim covers. Refer to Steering Column Trim Covers

Replacement .

2007 Hummer H3

2007 RESTRAINTS Supplemental Inflatable Restraints - H3

8. Install the steering wheel. Refer to Steering Wheel Replacement .

9. Enable the SIR system. Refer to SIR Disabling and Enabling.

INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL CENTERING

Fig. 42: View Of Block Tooth Of Steering Shaft Assembly In 12 O'clock Position
Courtesy of GENERAL MOTORS CORP.

NOTE:

The new SIR coil assembly will be centered. Improper
alignment of the SIR coil assembly may damage the unit,
causing an inflatable restraint malfunction.

2007 Hummer H3

2007 RESTRAINTS Supplemental Inflatable Restraints - H3

1. Verify the following conditions before centering the SIR coil:

The wheels on the vehicle are straight ahead.

The block tooth (1) of the steering shaft assembly is in the 12 o'clock position.

The ignition switch is in the LOCK position.

Fig. 43: Rotating SIR Coil
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: The SIR coil and multifunction, turn signal switch are

serviced as an assembly.

IMPORTANT: If double wire harness strap is installed onto the wire

harness assembly and column, you must reuse the holder for
the wire straps during installation.
Remove the wire harness strap(s) where necessary.

2007 Hummer H3

2007 RESTRAINTS Supplemental Inflatable Restraints - H3