Inflatable Restraint Front End Sensor Replacement (1500)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Inflatable Restraint Front End Sensor

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
WARNING: Do not strike or jolt the inflatable restraint front end sensor. Before applying power to the front end sensor make sure that it is securely fastened. Failure to observe the correct installation procedure could cause SIR deployment, personal injury, or unnecessary SIR system repairs. WARNING: Refer to SIR Warning . Preliminary Procedures Disable the supplemental inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling . Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
1	Supplemental Inflatable Restraint Front End Discriminating Sensor Bolt (Qty: 2) CAUTION: Refer to Fastener Caution . Procedure Loosen the bolts and slide the sensors out of the keyhole slots. The bolts are integral to the sensor assembly and DO NOT remove separately. 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 8 N.m (71 lb in)
2	Supplemental Inflatable Restraint Front End Discriminating Sensor Assembly (Qty: 2) Procedure Remove connector position assurance (CPA) retainer. Disconnect electrical connector.

Callout

Component Name

WARNING:

Do not strike or jolt the inflatable restraint front end sensor. Before applying power to the front end sensor make sure that it is securely fastened. Failure to observe the correct installation procedure could cause SIR deployment, personal injury, or unnecessary SIR system repairs.

WARNING:

Refer to SIR Warning .

Preliminary Procedures

Disable the supplemental inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling .
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

Supplemental Inflatable Restraint Front End Discriminating Sensor Bolt (Qty: 2)

CAUTION:

Refer to Fastener Caution .

Procedure

Loosen the bolts and slide the sensors out of the keyhole slots.
The bolts are integral to the sensor assembly and DO NOT remove separately.

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
8 N.m (71 lb in)

Supplemental Inflatable Restraint Front End Discriminating Sensor Assembly (Qty: 2)

Procedure

Remove connector position assurance (CPA) retainer.
Disconnect electrical connector.