Airbag Front End Discriminating Sensor Replacement

WARNING: This page is about a different car, the 2021 GMC Sierra 3500 HD and 2021 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
WARNING: Refer to SIR Warning . WARNING: Refer to SIR Inflator Module Handling and Storage Warning . WARNING: Following the deployment of a side impact air bag, inspect the following parts for damage. Replace these parts if necessary: The seat cushion frame The seat recliner, if equipped The seat adjuster The seat back frame Failure to do so may cause future personal injury. Preliminary Procedures Disable the SIR system. SIR Disabling and Enabling Front Bumper Upper Fascia Replacement
1	Airbag Front End Discriminating Sensor [ 2x ] CAUTION: Refer to Fastener Caution . Procedure Disconnect the electrical connector. Loosen the fastener and slide the sensor out of the keyhole slot. Enable the SIR System. SIR Disabling and Enabling NOTE: Integral sensor assembly bolt uses Left Hand threads. Use counterclockwise rotation to loosen fastener at TORX® tip end. If accessing at pan head end of the fastener, use clockwise rotation to loosen bolt. Tighten 7.5 N.m (66 lb in)

Callout

Component Name

WARNING:

Refer to SIR Warning .

WARNING:

Refer to SIR Inflator Module Handling and Storage Warning .

WARNING:

Following the deployment of a side impact air bag, inspect the following parts for damage. Replace these parts if necessary:

The seat cushion frame
The seat recliner, if equipped
The seat adjuster
The seat back frame

Failure to do so may cause future personal injury.

Preliminary Procedures

Disable the SIR system. SIR Disabling and Enabling
Front Bumper Upper Fascia Replacement

Airbag Front End Discriminating Sensor [ 2x ]

CAUTION:

Refer to Fastener Caution .

Procedure

Disconnect the electrical connector.
Loosen the fastener and slide the sensor out of the keyhole slot.
Enable the SIR System. SIR Disabling and Enabling

NOTE:

Integral sensor assembly bolt uses Left Hand threads. Use counterclockwise rotation to loosen fastener at TORX® tip end. If accessing at pan head end of the fastener, use clockwise rotation to loosen bolt.

Tighten
7.5 N.m (66 lb in)