Hummer Forums by Elcova - TSB - Auto Volume Inoperative After Ignition Key Is Cycled

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<TD align=middle width="50%">Document ID# 1533249
2003 HUMMER
H2 </TD>
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<H1>Auto Volume Inoperative After Ignition Key Is Cycled - kw GMT800 GMT806
GMT820 GMT830 radio speaker speed inoperative sound Y91 Y92 auto on off Bose
calibration amplifier loud #PIT3039 - (06/28/2004)</H1>Auto Volume Inoperative
After Ignition Key Is Cycled

.</P>

The following diagnosis might be helpful if the vehicle exhibits the
described symptoms in the PI.</P><A name=ss1-1533249><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1533249&psdid=293&evc=sm#ss1-1533249">
<H5>Condition/Concern:</A></H5>

Owners may notice that after the ignition key is cycled the "Auto Volume"
feature is inoperative even though, the feature is still on. The radio stores
the memory for the Auto Volume. At start up, the radio sends a class 2 message
to amplifier to turn on "Auto Volume". Due to a software concern the amplifier
does not receive the class 2 message from the radio, in turn the "Auto Volume"
feature is disabled. If the "Auto Volume" button is cycled off and then back on,
the radio will resend the class 2 message to the amplifier, and the "Auto
Volume" feature will turn on. </P><A name=ss2-1533249><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1533249&psdid=293&evc=sm#ss2-1533249">
<H5>Recommendation/Instructions:</A></H5>

At this time there is no repair for this concern. If the owner would like the
feature on they will have to cycle the "Auto Volume" button off and on after
each ignition cycle. </P>

.</P>

Please follow this diagnosis 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. If these steps do not resolve the condition,
please contact GM TAC for further diagnostic assistance.</P><A
name=ss3-1533249><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1533249&psdid=293&evc=sm#ss3-1533249">
<H5>Models:</A></H5>

(03-04 Cadillac All Full Size Utilities) and (03-04 GMC Sierra Denali) and
(03-04 GMC Yukon Denali) and (Yukon Denali XL) and (03-04 Hummer H2) </P>

.</P>

</P>
<TABLE width="100%">
<TBODY>
<TR>
<TD align=left width=778><FONT size=1>GM bulletins are intended for use by
professional technicians, NOT a "do-it-yourselfer". They are written
to inform these technicians of conditions that may occur on some vehicles,
or to provide information that could assist in the proper service of a
vehicle. Properly trained technicians have the equipment, tools,
safety instructions, and know-how to do a job properly and safely.
If a condition is described, DO NOT assume that the bulletin applies to
your vehicle, or that your vehicle will have that condition. See
your GM dealer for information on whether your vehicle may benefit from
the information.
</FONT></TD>
<TD align=middle width=42></TD>
<TD align=middle width=167><FONT size=2>WE SUPPORT VOLUNTARY TECHNICIAN
CERTIFICATION
</FONT></TD></TR></TBODY></TABLE>
<P align=center>© Copyright General Motors Corporation. All Rights
Reserved. </P>
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<HR>

<TABLE width="100%" align=center>
<TBODY>
<TR>
<TD width="25%" slign="LEFT"></TD>
<TD align=middle width="50%">Document ID# 1533249
2003 HUMMER
H2 </TD>
<TD align=right width="25%"></TD></TR></TBODY></TABLE></FORM></BODY></HTML>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<HTML><HEAD><TITLE>Service Information</TITLE>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="Microsoft FrontPage 5.0" name=GENERATOR></HEAD>
<BODY bgColor=#ffffff>
<FORM name=topNavForm action=/servlets/CellHandler>
<TABLE width="100%" align=center>
<TBODY>
<TR>
<TD width="25%" slign="LEFT"></TD>
<TD align=middle width="50%">Document ID# 1533249
2003 HUMMER
H2 </TD>
<TD align=right width="25%"></TD></TR></TBODY></TABLE>
<HR>
</FORM>
<H1>Auto Volume Inoperative After Ignition Key Is Cycled - kw GMT800 GMT806
GMT820 GMT830 radio speaker speed inoperative sound Y91 Y92 auto on off Bose
calibration amplifier loud #PIT3039 - (06/28/2004)</H1>Auto Volume Inoperative
After Ignition Key Is Cycled

.</P>

The following diagnosis might be helpful if the vehicle exhibits the
described symptoms in the PI.</P><A name=ss1-1533249><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1533249&psdid=293&evc= sm#ss1-1533249">
<H5>Condition/Concern:</A></H5>

Owners may notice that after the ignition key is cycled the "Auto Volume"
feature is inoperative even though, the feature is still on. The radio stores
the memory for the Auto Volume. At start up, the radio sends a class 2 message
to amplifier to turn on "Auto Volume". Due to a software concern the amplifier
does not receive the class 2 message from the radio, in turn the "Auto Volume"
feature is disabled. If the "Auto Volume" button is cycled off and then back on,
the radio will resend the class 2 message to the amplifier, and the "Auto
Volume" feature will turn on. </P><A name=ss2-1533249><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1533249&psdid=293&evc= sm#ss2-1533249">
<H5>Recommendation/Instructions:</A></H5>

At this time there is no repair for this concern. If the owner would like the
feature on they will have to cycle the "Auto Volume" button off and on after
each ignition cycle. </P>

.</P>

Please follow this diagnosis 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. If these steps do not resolve the condition,
please contact GM TAC for further diagnostic assistance.</P><A
name=ss3-1533249><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1533249&psdid=293&evc= sm#ss3-1533249">
<H5>Models:</A></H5>

(03-04 Cadillac All Full Size Utilities) and (03-04 GMC Sierra Denali) and
(03-04 GMC Yukon Denali) and (Yukon Denali XL) and (03-04 Hummer H2) </P>

.</P>

</P>
<TABLE width="100%">
<TBODY>
<TR>
<TD align=left width=778><FONT size=1>GM bulletins are intended for use by
professional technicians, NOT a "do-it-yourselfer". They are written
to inform these technicians of conditions that may occur on some vehicles,
or to provide information that could assist in the proper service of a
vehicle. Properly trained technicians have the equipment, tools,
safety instructions, and know-how to do a job properly and safely.
If a condition is described, DO NOT assume that the bulletin applies to
your vehicle, or that your vehicle will have that condition. See
your GM dealer for information on whether your vehicle may benefit from
the information.
</FONT></TD>
<TD align=middle width=42></TD>
<TD align=middle width=167><FONT size=2>WE SUPPORT VOLUNTARY TECHNICIAN
CERTIFICATION
</FONT></TD></TR></TBODY></TABLE>
<P align=center>© Copyright General Motors Corporation. All Rights
Reserved. </P>
<FORM name=bottomNavForm>
<HR>

<TABLE width="100%" align=center>
<TBODY>
<TR>
<TD width="25%" slign="LEFT"></TD>
<TD align=middle width="50%">Document ID# 1533249
2003 HUMMER
H2 </TD>
<TD align=right width="25%"></TD></TR></TBODY></TABLE></FORM></BODY></HTML>