Yukon/Denali 4WD V8-4.8L VIN V (2005)
Air Bag(s) Arming and Disarming: Service and Repair
SIR Disabling and Enabling Zones
SIR DISABLING AND ENABLING ZONES
IMPORTANT: Refer to SIR Service Precautions before disabling the SIR system.
The SIR system has been divided into Disabling and Enabling Zones. When performing service on or near SIR components or SIR wiring, it may be
necessary to disable the SIR components in that zone. It may be necessary to disable more than one zone depending on the location of other SIR
components and the area being serviced, refer to SIR Zone Identification Views. Refer to the illustration, to identify the specific zone or zones in which
service will be performed. After identifying the zone or zones, proceed to the disabling and enabling procedures for that particular zone or zones.
SIR Disabling and Enabling Zone 1
SIR DISABLING AND ENABLING ZONE 1
DISABLING PROCEDURE
1. Turn the steering wheel so that the vehicles wheels are pointing straight ahead.
IMPORTANT: Refer to SIR Service Precautions before disabling the SIR system.
2. Turn OFF the ignition.
3. Remove the key from the ignition.
4. Remove the SIR fuse from the fuse block.
IMPORTANT: With the SIR fuse removed and the ignition ON, the AIR BAG indicator illuminates. This is normal operation and does not indicate
an SIR system malfunction.
5. Raise and support the vehicle.
