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SUBJECT: MODELS: Loss of Power Steering Assist – Replace Electric Power Steering Motor 2005-2010 Chevrolet Cobalt 2005 Pontiac Pursuit 2005-2006 Pontiac G4 2006 Pontiac G5 Pursuit 2007-2010 Pontiac G5 Equipped with Electric Power Steering 2005-2010 model year Chevrolet Cobalt vehicles; 2005 model year Pontiac Pursuit; 2005-2006 model year Pontiac G4; 2006 model year Pontiac G5 Pursuit; and 2007-2010 model year Pontiac G5 vehicles equipped with electric power steering. Some of these vehicles have a condition in which a sudden loss of power steering assist could occur at any time while driving the vehicle. If the power steering assist is lost, a chime will sound and a “Power Steering” message will be displayed in the Driver Information Center to inform the driver of the condition. Steering control will be maintained, as the vehicle defaults to a manual steering mode. If power steering assist is lost, it may require greater driver effort at low vehicle speeds, for example, below 15 mph (25 km/h). Unless a driver compensates for this additional effort, it may increase the risk of a crash. Typically, the next time the vehicle is started, the power steering assist will return and the “Power Steering” message will no longer be displayed. EPS Motor Replacement Procedure Note: The use of Loctite is no longer required. Loctite should not be used for any further applications. 1. Connect the Tech 2® to the vehicle and check for diagnostic trouble codes (DTCs). 2. Record any present DTCs on the repair order and during claim submission. 3. Clear any DTCs that are present. 4. Remove the power steering assist motor. Refer to Power Steering Assist Motor Replacement in SI. Note: For 2005 model year vehicles only: Do NOT install the o-ring between the motor assembly and the steering column assembly. The new service motor kit will include an o- ring, but DO NOT install the o-ring for 2005 model year vehicles only. 5. Install the new power steering assist motor. Refer to Power Steering Assist Motor Replacement in SI. 6. Perform Test Drive.

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Condition Some customers may comment on any of the following concerns: • The shifter is hard to move or binds. • They cannot remove the ignition key. • It takes high effort to rotate the key. Cause 1 The shifter button may be sticking in the handle. Cause 2 The pin that activates the micro-switch may have moved out of position (refer to illustration above). This causes the micro-switch to fail to engage when the vehicle is placed in Park. If this condition is present, the customer will not be able to remove the key from the ignition. The illustration above shows the switch in a correct position. Cause 3 Metal flashing left in the cylinder may cause a high effort to rotate the key. Cause 4 The slider may be binding in the guides. This may cause the shifter to become difficult to operate. Correction 1 Verify that the shifter button is inoperative by evaluating if the park pawl pin on the shifter assembly moves when activating the button. If the parking pawl does not move when the button is activated, the shifter handle will have to be replaced. Refer to Floor Shifter Control Knob Replacement in SI.

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The following diagnostics might be helpful if the vehicle exhibits the conditlon(s) described above. Use the appropriate recommendation based on what symptom has occurred. Recommendation/Instructions No DTCs Review Corporate Bulletin Number 05-02-32-002B to assure you do not have a blown 60 amp steering fuse. The fuse can be blown during improper jump starting of the vehicle on the HHR and ION. Check for this particularly for tow in conditions. DO NOT replace the steering column unless an internal short has been Identified in the column that is causing fuse to blow. Power Steering Warning Message on DIC with DTCs C0176 and C0476 This condition is often the result of excessive lock-to-lock turns of the steering wheel, causing the thermal protection in the Power Steering Control Module (PSCM) to take the steering motor temporarily off line. This is a normal operating characteristic of the system. DO NOT replace the steering column for this condition. Refer to Corporate Bulletin Number 06-02-32-002B for additional information