For 1990-2009 cars

# Unable To Receive Incoming OnStar Or HFC (Hands Free Calling) Calls - keywords blue button call cellular communication data digital information noconnect operation program tech2 UE1 vs3bgen6 vs3bgen7

Subject: | Unable to receive incoming OnStar or HFC (Hands Free Calling) calls

Models: | Certain 2002-2008 OnStar Gen 6.4 Gen 6.11 and 6.15 and gen 7.0 and 7.04 and 7.045 equipped vehicles

This PI was superseded to show this PI does not apply to LG VCIMs. Please discard PIC4393E.

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

### Condition/Concern:

Some OnStar Gen 6.11 & 6.15& 7.0 & 7.04 & 7.045 customer may report they are unable to receive OnStar HFC (Hands Free Calling) calls and/or the OnStar center is unable to perform remote services.

### Recommendation/Instructions:

If a routine system check and published service information does not identify an issue, retrieve the following information from the vehicle with the Tech 2 and contact GM Technical assistance for further instructions.

Attempt to place call to vehicle. Be sure to use 11 Digit Dialing. (1+ Area code+Number)

Important Note: DO NOT remove battery voltage from the OnStar system because GM TAC will need to verify the issue prior to recommending any repairs and/or a hardware replacement.

Module ID 2

8 Digit GM part number:

Electronic Serial Number:

VCI Module Station ID:

Module ID:

Cellular Information:

Call mode:

Current System ID:

Digital Home NID:

Digital Home SID:

PRL Outdated Status:

PRL Version Number:

Program Phone Number:

MDN:

MIN:

Current Mileage:

Current Repair Order:

Customers Name:

Delivery Date:

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.