GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2000 🢒 Astro - 4WD 🢒 Restraints 🢒 SIR 🢒 Instrument Panel Inflatable Restraint Module Replacement

Removal Procedure

    Object Number: 189085 Size: SH

    Caution: This vehicle is equipped with a Supplemental Inflatable Restraint (SIR) System. Failure to follow the correct procedure could cause the following conditions:

       • Air bag deployment
       • Personal injury
       • Unnecessary SIR system repairs
    In order to avoid the above conditions, observe the following guidelines:
       • Refer to SIR Component Views in order to determine if you are performing service on or near the SIR components or the SIR wiring.
       • If you are performing service on or near the SIR components or the SIR wiring, disable the SIR system. Refer to Disabling the SIR System.

    Caution: When you are carrying an undeployed inflator module:

       • Do not carry the inflator module by the wires or connector on the inflator module
       • Make sure the bag opening points away from you
    When you are storing an undeployed inflator module, make sure the bag opening points away from the surface on which the inflator module rests. When you are storing a steering column, do not rest the column with the bag opening facing down and the column vertical. Provide free space for the air bag to expand in case of an accidental deployment. Otherwise, personal injury may result.

  1. Disable the SIR system. Refer to Disabling the SIR System .
  2. Remove the right knee bolster. Refer to Passenger Knee Bolster Replacement in Instrument Panel, Gages, and Console.
  3. Remove the connector position assurance (CPA) retainer (2) from the inflatable restraint I/P module harness connector.
  4. Disconnect the inflatable restraint I/P module connector (1).
  5. Remove the clip that retains the inflatable restraint I/P module harness to the I/P (3).

    6. Object Number: 388352 Size: SH
  6. Remove the 2 bolts (2) that retain the inflatable restraint I/P module (3) to the I/P carrier.
  7. Push out from the back side in order to remove the inflatable restraint I/P module from the I/P.
  8. Fully deploy the module before disposal. If the module was replaced under warranty, fully deploy and dispose of the module after the required retention period. Refer to Inflator Module Handling, Shipping, and Scrapping .

Installation Procedure

    Object Number: 388352 Size: SH
  1. Install the inflatable restraint I/P module (3).

    2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Install the 2 bolts (2) that retain the inflatable restraint I/P module to the I/P carrier.

    3. Tighten
    Tighten the bolts to 9 N·m (80 lb in).


    Object Number: 189085 Size: SH
  3. Install the inflatable restraint I/P module connector (1).
  4. Install the CPA retainer (2).
  5. Install the clip that retains the inflatable restraint I/P module harness to the I/P (3).
  6. Install the right knee bolster. Refer to Passenger Knee Bolster Replacement in Instrument Panel, Gages and Console.
  7. Enable the SIR system. Refer to Enabling the SIR System .