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2021Trailblazer RS AWD Scarlet Red Metallic
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You could try doing a reset by disconnecting the battery for a few minutes then reconnect and see if the system resets itself. If that doesn't work it's time to take it in for warranty work.
 

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You could try doing a reset by disconnecting the battery for a few minutes then reconnect and see if the system resets itself. If that doesn't work it's time to take it in for warranty work.
^ what he said try the reset something may have just not been tightly secured in the back of the head unit which is covered under warranty.
 
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