In Brief

Rear Cross Traffic Alert (RCTA)

~1min read

If equipped, the RCTA system displays an arrow triangle on the infotainment display to warn of traffic behind your vehicle that may cross your path while in R (Reverse). In addition, an audible chime will sound, or the driver seat will pulse.

See Parking Assist or Backing Aid.

Test yourself

A quick GMC Terrain quiz: every answer comes with an explanation and a link to the manual page.