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August 7, 2015 Service bulletin

15155

Chevrolet technical service bulletin 15155 for 2015 Chevrolet Silverado 1500, 2015 Chevrolet Tahoe and 2015 GMC Sierra 1500 and others.

Bulletin number
15155
Component
Equipment
Summary
15155 - customer satisfaction program. Certain 2015 model year cadillac escalade, cadillac escalade esv, chevrolet silverado crew cab, chevrolet suburban, chevrolet tahoe, gmc sierra crew cab, gmc yukon, and gmc yukon xl vehicles may have a condition that can allow water to leak into the vehicle’s roof-mounted antenna. This condition could prevent the vehicle’s onstar system from accurately determining the vehicle’s location; disable the vehicle’s compass, navigation, and xm radio systems; illuminate the vehicle’s red onstar LED indicator; and allow water into the interior passenger compartment. Dealers are to replace the onstar® antenna.

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