2010 Cadillac Truck Escalade EXT AWD V8-6.2L Technical Service Bulletin # 10-08-46-001 Date: 100127

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Technical Service Bulletin # 10-08-46-001 Date: 100127

Audio - Radio Does Not Mute Enough When Using OnStar(R)

TECHNICAL

Bulletin No.: 10-08-46-001

Date: January 27, 2010

Subject: Radio Does Not Mute Enough When OnStar(R) Turn-by Turn Navigation Directions Are Announced (Increase Volume Setting or

Request Soft Mute Feature Change Through OnStar(R) Customer Service)

Models:

2009-2010 GM Passenger Cars and Trucks (Including Saturn)

2009-2010 HUMMER H2, H3

2009 Saab 9-7X

All Equipped with OnStar(R) (RPO UE1)

Condition

Some customers may comment that when the radio is on, it does not mute enough when the OnStar(R) Turn-by-Turn Navigation directions are

announced.

Cause

This condition may be caused by the customer improperly setting the radio volume high enough when the Turn-by-Turn Navigation messages are

played.

The 2009 and 2010 models with OnStar(R) initiates a "soft mute" feature when the radio is on during Turn-by-Turn Navigation direction

announcements. During the announcement, the radio can still be heard at a very low volume. Previous model years initiated a "hard mute" during

this function which completely muted the radio audio.

Correction

Instruct the customer to increase the radio volume while getting the Turn-by-Turn Navigation direction announcements. You can control the

message volume using the radio volume control, only when the Turn-by-Turn navigation messages are playing.

Some customers that were accustomed to previous model vehicles with the "hard mute" feature may be dissatisfied with the function of the "soft

mute" feature. For those customers, contact the OnStar(R) Customer Service Center by pushing the Blue OnStar(R) Button to speak to a trained

Advisor and request a change be made to the vehicle from the "soft mute" setting to that of the hard or complete muting of audio playback during

Turn by Turn directions. OnStar(R) will then create a case number. Advise the customer that the vehicle update should be completed Over the Air

within 5 business days, after which an OnStar(R) Customer Care advisor will follow-up with the customer to verify the fix. If the customer does not

hear back from OnStar(R) within a week, advise them to press the Blue OnStar(R) Button and ask for Customer Care to check status.

Warranty Information (excluding Saab U.S. Models)

For vehicles repaired under warranty, use:

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 271

Warranty Information (Saab U.S. Models)

For vehicles repaired under warranty, use the table above.