Technical Service Bulletins

USB static

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USB static

Condition/concern: A customer may comment on static noise heard when using the USB port to play audio from a portable device.

Models: 2010 - 2011 Buick LaCrosse; 2010 - 2011 Cadillac SRX; 2010 - 2011 Chevrolet Camaro, Equinox; 2010 - 2011 GMC Terrain; 2010 - 2011 Opel Insignia; 2011 - Buick Regal; and 2011 - Chevrolet Cruze and Malibu.

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


Important: For iPhones and iTouch devices, first attempt to perform a reset of the device by selecting: Settings>General>Reset>Reset All settings.

Verify that song data/information is still displayed (song track, title, artist, genre, etc.) when playing audio through the USB port. Then disconnect the USB cable and connect the 3.5mm jack.

Verify that a portable device can play audio correctly through the 3.5 mm input jack. If the vehicle displays song data when playing audio through the USB port and has clear audio when playing through the 3.5 mm jack, replace the MPIM following published repair procedures.

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.

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