If equipped, the RCTA system uses a triangle with an arrow displayed on the infotainment display to warn of traffic behind your vehicle that may cross your vehicle's path while in R (Reverse). In addition, beeps will sound, or the driver seat will pulse.
See Assistance Systems for Parking or Backing.
#PI0574A: Missing OnStar Owner Kit Integration in Vehicle Owner Manual - (May 28, 2013)
Subject:Missing OnStar® Owner Kit Integration in Vehicle Owner ManualModels: 2012-2014 GM Passenger Cars and Light Duty Trucks This bulletin is being revised to include the 2013-2014 model year vehicles, updatethe covered models and the Recommendation/Instructions section. Please discard PI057 ...