Chevrolet Cobalt Service & Repair Manual: Passkey Module

On models equipped with the Passkey Theft Deterrent System, a new password must be learned by the PCM when the BCM/PCM has been replaced. When the PCM is replaced, the EEPROM calibration is flashed into the new PCM. Refer to latest GM Techline or equivalent information for PCM programming. After EEPROM calibration is complete, perform the following procedure:
1. Attempt to start vehicle, vehicle will stall.
2. Leave ignition On until Theft System warning lamp turns Off.
3. Turn ignition Off.
4. Attempt to start vehicle. Password is now learned and vehicle will now start.
    Wheel, Replace
    Removal Caution: Never use heat to loosen a tight wheel. This can shorten the life of wheel and damage wheel bearings. Wear approved safety glasses when performing the ...

    2007-10 Cobalt & G5
    w/2.0L & 2.4L Engines Warning: Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel i ...

    See also:

    Chevrolet Cobalt Service & Repair Manual. Parking Brake Cable Adjust
    Refer to Fig. 1 when performing the following procedure. 1. Apply and fully release the park brake several times, then verify that the park brake lever releases completely. 2. Turn ON the ignition. Verify the red b ...

    Chevrolet Cobalt Owners Manual

    Chevrolet Cobalt Service Manual


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