I just bought an '06. I got the LS with xm radio. What I noticed is that when I have my stock moon roof open I tend to loose most of my signal for my xm. I have to bring my moon roof in about 3-5 inches to get a good signal back. Any ideas or anyone heard of this issue???

 

nothing you are going to do anything about its becasue the sunrof s covering the xm antenna your just gonna have to live with it

 

Is there a way to move the ant somewhere else?

 

You might be able to, but then you would have to fill the hole where the old placement was. That is really poor design on Chevy's part. They should put the antenna in front of the sunroof.

 

Oh, I see, it's the hump at the rear of the roof???


If the ant is on top of the roof line how would the sunroof be in the way of the signal?

 

because when you open the sunroof it covers the whole antenna

 

TSB...

Document ID# 1828792
2006 Chevrolet Monte Carlo


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Subject: Performance of XM Radio System with Sunroof Fully Open - keywords antenna information inoperative intermittent no poor receiver reception signal U2K weak xmradio #PIC3074B - (05/16/2006)



Models: 2003-2006 Chevrolet Monte Carlo

2004-2006 Pontiac Grand Prix




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

Condition/Concern:
Poor reception XM signal blocked, with sunroof fully opened. Because the sunroof travels over the XM antenna at the rear of the roof, the signal may be blocked. This is a characteristic of this antenna and sunroof system. Review the vehicle owner's manual for further details.

Recommendation/Instructions:
Move the sunroof forward enough to allow the XM signal a direct line from the satellite/repeater to the antenna.

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.



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.
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In a nut shell... this is a normal characteristic of the car and there is no fix.


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Document ID# 1828792
2006 Chevrolet Monte Carlo

 

Cool TSB Info though.

We should come up with a TSB section... I'll see what we can do...