For 1990-2009 cars

Caution: When performing service on or near the SIR components or the SIR wiring, the SIR system must be disabled. Refer to SIR Disabling and Enabling . Failure to observe the correct procedure could cause deployment of the SIR components, personal injury, or unnecessary SIR system repairs.

Inflatable Restraint Sensing and Diagnostic module (SDM) maintains a reserved energy supply. The reserved energy supply provides deployment power for the air bags. Deployment power is available for as much as 1 minute after disconnecting the vehicle power. Disabling the SIR system will make the airbag unable to deploy with the reserved energy.

### Repair Instructions

The following is the general repair instructions that must be observed to repair the vehicle and restore it the original status.

• | DO NOT place the inflation module at the temperature high than 65°C.

• | Replacement parts must have the correct part number. Do not replace with parts for vehicles of different model.

• | Use genuine GM replacement parts from the authorized GM dealer. DO NOT use the recycled parts to service the SIR system.

Any component that fall from height about 0.91 M (3 ft) shall be discarded.

• | Inflatable Restraint Sensing and Diagnostic Module Replacement

• | Inflatable Restraint Instrument Panel Module Replacement

• | Inflatable Restraint Steering Wheel Module Replacement

• | Inflatable Restraint Steering Wheel Module Coil Replacement

• | Driver or Passenger Seat Side Inflatable Restraint Module Replacement

• | Inflatable Restraint Roof Side Rail Module Replacement - Left Side

• | Inflatable Restraint Roof Side Rail Module Replacement - Right Side

• | Inflatable Restraint Side Impact Sensor Replacement

• | Seat Belt Buckle Pretensioner Replacement

• | Inflatable Restraint Front End Sensor Replacement