Chevrolet Silverado / GMC Sierra. Service manual — part 674

INFLATABLE RESTRAINT SENSING AND DIAGNOSTIC MODULE REPLACEMENT

3. Remove front side door trim panel. Refer to Front Side Door Trim Panel

Replacement (YE9) or Front Side Door Trim Panel Replacement (SLT) .

4. Remove front side door water deflector. Refer to Front Side Door Water Deflector

Replacement .

1

Inflatable Restraint Side Impact Sensor Module Bolt (Qty: 2)

Procedure:
Loosen the bolts and slide sensor out of key hole slots.
Tip:

When removing the bolts from the inboard side, the bolts are removed as
having right hand threads.

When removing the bolts from the outboard side, the bolts are removed as
having left hand threads.

Tighten: 9 N.m (80 lb ft)

NOTE:

Refer to Fastener Notice .

2

Inflatable Restraint Side Impact Sensor Module Assembly

2008 Chevrolet Silverado 1500

2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 12: Inflatable Restraint Sensing and Diagnostic Module Replacement
Courtesy of GENERAL MOTORS CORP.

Callout

Component Name

CAUTION:

Do not strike or jolt the inflatable restraint sensing and diagnostic module (SDM). Before applying
power to the SDM, make sure that it is securely fastened with the arrow facing toward the front of
the vehicle. Failure to observe the correct installation procedure could cause SIR deployment,
personal injury, or unnecessary SIR system repairs.

CAUTION:

Refer to SIR Caution .

2008 Chevrolet Silverado 1500

2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

INFLATABLE RESTRAINT STEERING WHEEL MODULE REPLACEMENT

Preliminary Procedures

1. Disable the supplemental inflatable restraint (SIR) system. Refer to SIR Disabling

and Enabling.

2. Remove driver front bucket seat. Refer to Front Seat Replacement - Bucket .

1

Inflatable Restraint Sensing and Diagnostic Module Nuts (Qty: 3)

Tighten: 7 N.m (56 lb in)

NOTE:

Refer to Fastener Notice .

2

Inflatable Restraint Sensing and Diagnostic Module Assembly
Tip:

1. Position the carpet in order to access the module.

2. Disconnect the electrical connectors.

3. When installing, ensure the arrow on the module is pointed towards the

front of the vehicle.

4. If installing a replacement module, program the module. Refer to Control

Module References .

2008 Chevrolet Silverado 1500

2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 13: Inflatable Restraint Steering Wheel Module Replacement
Courtesy of GENERAL MOTORS CORP.

Callout

Component Name

Preliminary Procedure: Disable the supplemental inflatable restraint (SIR) system. Refer
to SIR Disabling and Enabling.

CAUTION:

Refer to SIR Inflator Module Handling and Storage Caution .

CAUTION:

Refer to SIR Caution .

1

Retainer
Procedure:
On the back side of the steering wheel, there are 2 access holes which directs
the tool to the release retainer. Using a 3-4 mm wire or 4 mm allen type wrench,
push the retainer inward and slightly upward through the access hole. Repeat
the step for the other access hole.
Steering Wheel Inflatable Restraint Module

Procedure

2008 Chevrolet Silverado 1500

2008 RESTRAINTS Supplemental Inflatable Restraints - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado