This is the back up alarm siren for many different GM vehicles from 2007-2016. This item mounts towards the rear of these trucks. This is the back up and proximity siren for warning others you are backing up and if you get too close to something. Replace your old, non-working, or malfunctioning part with this brand new factory original part from General Motors at a fraction of the dealer price.

New. Never Installed. OEM part. Bulk Overstock

GM part # 25824475 (number on the item)

Item is number 1 in the GM diagram