GMC Terrain: Lighting Features / Entry/Exit lighting
Entry Lighting
Some exterior lamps and interior
lamps turn on briefly at night, or in
areas with limited lighting, when 
is pressed on the Remote Keyless
Entry (RKE) transmitter. When a
door is opened, the interior lamps
come on. They stay on for about
20 seconds. When all of the doors
have been closed or the ignition is
turned on, they gradually fade out.
This feature can be changed. See “Vehicle Locator Lights” under Vehicle Personalization.
Exit Lighting
Some exterior lamps and interior lamps come on at night, or in areas with limited lighting, when the driver door is opened after the ignition is turned off. The dome lamp comes on after the ignition is turned off. The exterior lamps and dome lamp remain on for a set amount of time, then automatically turn off.
The exterior lamps turn off immediately by turning the exterior lamp control off. This feature can be changed. See Vehicle Personalization 0 152.
Battery Load Management, Battery Power Protection and Exterior
Lighting Battery Saver
Battery Load Management
The vehicle has Electric Power
Management (EPM) that estimates
the battery's temperature and state
of charge. It then adjusts the voltage
for best performance and extended
life of the battery...
Other information:
GMC Terrain 2018-2026 Owners Manual: OnStar Overview
Voice Command Button Blue OnStar Button Red Emergency Button This vehicle may be equipped with a comprehensive, in-vehicle system that can connect to an OnStar Advisor for Emergency, Security, Navigation, Connections, and Diagnostics Services...
GMC Terrain 2018-2026 Owners Manual: Battery Load Management, Battery Power Protection and Exterior Lighting Battery Saver
Battery Load Management The vehicle has Electric Power Management (EPM) that estimates the battery's temperature and state of charge. It then adjusts the voltage for best performance and extended life of the battery. When the battery's state of charge is low, the voltage is raised slightly to quickly bring the charge back up...
