GMC Terrain: Exterior Lighting / Daytime Running Lamps (DRL)
DRL can make it easier for others to see the front of your vehicle during the day. Fully functional DRL are required on all vehicles first sold in Canada.
The DRL system comes on in daylight when the following conditions are met:
- The ignition is on.
- The exterior lamp control is in AUTO.
- The vehicle is not in P (Park).
- The light sensor determines it is daytime.
When the DRL are on, the taillamps, sidemarker lamps, instrument panel lights, and other lamps will not be on. The instrument cluster will be lit.
The DRL turn off when the
headlamps are turned to 
or the
ignition is off. For vehicles first sold
in Canada, the DRL can only be
turned off when the vehicle is
parked.
The regular headlamp system should be turned on when needed.
Headlamp High/Low-Beam Changer anf Flash-to-Pass
Headlamp High/Low-Beam Changer
Push the turn signal lever away
from you and release, to turn the
high beams on. To return to low
beams, push the lever again or pull
it toward you and release...
Automatic Headlamp System
When the exterior lamp control is
set to AUTO and it is dark enough
outside, the headlamps come on
automatically.
There is a light sensor on top of the
instrument panel...
Other information:
GMC Terrain 2018-2025 Owners Manual: Infotainment System
Infotainment See the infotainment manual for information on the radio, audio players, phone, navigation system, and voice or speech recognition. It also includes information on settings. Active Noise Cancellation (ANC) If equipped, ANC reduces engine noise in the vehicle’s interior...
GMC Terrain 2018-2025 Owners Manual: How to Add Coolant to the Coolant Surge Tank
Warning Steam and scalding liquids from a hot cooling system are under pressure. Turning the pressure cap, even a little, can cause them to come out at high speed and you could be burned. Never turn the cap when the cooling system, including the pressure cap, is hot...
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