Chevrolet Sonic Repair Manual: SIR Service Precautions
- General Service Instructions
-
Warning:
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.
Note:
The Inflatable Restraint Sensing and Diagnostic Module (SDM) maintains a reserved energy supply. The reserved energy supply provides deployment power for the SIR air bags. Deployment power may be available for up to 2 minutes after disconnecting the vehicle power. Disabling the SIR system prevents deployment of the SIR air bags from the reserved energy supply.
Note:
The following are general service instructions which must be followed in order to properly repair the vehicle and return it to its original integrity:
- Do not expose air bags to temperatures above 85?€‰?°C?€‰ (185?€‰?°F)
- Verify the correct replacement part number. Do not substitute a component from a different vehicle
- Use only original GM replacement parts available from your authorized GM dealer. Do not use salvaged parts for repairs to the SIR system
Note:
Discard any of the following components if it has been dropped from a height of 80?€‰cm?€‰(15.75?€‰in) or greater:
- Inflatable Restraint Sensing and Diagnostic Module
- Passenger instrument panel air bag
- Driver steering wheel air bag
- Driver steering wheel air bag coil
- Roof rail air bags
- Front and /or side impact sensors
- Seat belt achor and/or retractor pretensioners
- Front seat side air bag
- Knee air bag
SIR Seatbelt Pretensioner Handling Warning
Warning: When carrying an undeployed inflatable restraint seat belt
retractor pretensioner:
Do not carry the seat belt pretensioner by the seat belt webbing or
pigtail connector, if e ...
SIR Warning
Warning: This vehicle is equipped with a Supplemental Inflatable Restraint
(SIR) System. Failure to follow the correct procedure could cause the following
conditions:
Air bag deploymen ...
Other materials:
Brake Fluid Level Indicator Switch Replacement
Removal Procedure
Disconnect the brake fluid level indicator switch electrical connector.
Using a small, flat-bladed tool, lift the locking tab on the underside
of the brake fluid level indicator switch (1) and remove the switch.
Inspect the master cyli ...
Rear Wheel Bearing and Hub Replacement (Disc Brake)
Special Tools
EN–45059 Angle Meter
For equivalent regional tools, refer to Special Tools.
Removal Procedure
Raise and suitably support the vehicle. Refer to Lifting and Jacking
the Vehicle.
Remove the tire and wheel assembly. Refer to Tire and Wheel Removal
and Insta ...
Case Porosity Repair
Some external leaks are caused by case porosity in non-pressurized areas.
Thoroughly clean the area to be repaired with a cleaning
solvent. Air dry the area.
Warning: Epoxy adhesive may cause skin irritations and eye damage.
Read and follow all information on the container label a ...
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