Document ID# 1970090

Subject: Continuous OnStar Progression Tones AFTER Call End Attempt Is Made - keywords blue button DTC AIC3287 emerges flashing inoperative issue led mute no noconnect OnStar progression radio red tones #PIC4500 - (05/08/2007)

Models: 2007-2008 Corvette

STID ranges:
20,000,001 - 20,450,000

20,450,001 - 22,000,000

44,500,001 - 47,500,000

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

Condition/Concern:
Engineering recently defined a very specific concern in some Gen 7 Continental VCIM's.

Important Note: The condition must fit ALL of these criteria.

The vehicle has progression tones AFTER a key press that will not end on their own or by pressing the call end button.
The radio audio will not return so the progression tones are heard.
After the call end key is pressed (or after several minutes), the GREEN LED CHANGES FROM FLASHING TO SOLID DESPITE THE PROGRESSION TONES STILL HAPPENING.
The customer will not be able to end the condition under normal means which may include cycling the key.
The OnStar STID is within the above listed range's.
Recommendation/Instructions:
After testing for this concern specifically, Continental has identified a software issue internal to the VCIM. If this concern is occurring contact OnStar TAC for further instructions.

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