headlamp GMC TERRAIN 2021 Owner's Manual

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Introduction 5
1.Air Vents 0182.
2. Turn Signal Lever. See Turn and
Lane-Change Signals 0119.
IntelliBeam System Button (If Equipped).
See Exterior Lamp Controls 0116.
3. Instrument Cluster (Base and Midlevel)
085 or
Instrument Cluster (Uplevel) 088.
Driver Information Center (DIC) Display.
See Driver Information Center (DIC) (Base
and Midlevel) 0100 or
Driver Information Center (DIC) (Uplevel)
0 105.
4. Windshield Wiper/Washer 079.
5. Infotainment Controls. See Overview
0 124.
6. Light Sensor. See Automatic Headlamp
System 0118.
7. Hazard Warning Flashers 0119.
8. Climate Control Systems 0178 (If
Equipped).
Dual Automatic Climate Control System
0 180 (If Equipped).
9. Shift Switches. See Automatic
Transmission 0208.
10. Power Outlets 081. 11.
Assistance Systems for Parking or Backing
0232 (If Equipped).
12. Heated and Ventilated Front Seats 035
(If Equipped).
13. Wireless Charging 082 (If Equipped).
14. Driver Mode Control 0218 (If Equipped).
15. Lane Keep Assist (LKA) 0244 (If
Equipped).
Hill Descent Control (HDC) 0217 (If
Equipped).
16. USB Port 0134.
17. ENGINE START/STOP Button. See Ignition
Positions 0199.
18. Steering Wheel Controls 0126.
19. Horn 079.
20. Steering Wheel Adjustment 079 (Out
of View).
21. Hood Release. See Hood0259.
22. Cruise Control 0220.
Adaptive Cruise Control (Camera) 0222
(If Equipped).
Heated Steering Wheel 079 (If
Equipped).
Forward Collision Alert (FCA) System
0 237 (If Equipped). 23. Data Link Connector (DLC) (Out of View).
SeeMalfunction Indicator Lamp (Check
Engine Light) 093.
24. Electric Parking Brake 0212.
25. Exterior Lamp Controls 0116.
Instrument Panel Illumination Control
0 120.
Fog Lamps 0119 (If Equipped).

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Keys, Doors, and Windows 25
Heated Mirrors
If equipped, the heated outside mirrors turn
on when the rear window defogger is on
and help to clear fog or frost from the
surface of the mirrors.
K:This button is on the climate control
panel.
See “Rear Window Defogger” underDual
Automatic Climate Control System 0180.
Automatic Dimming Mirror
If the vehicle has the automatic dimming
mirror, the driver outside mirror
automatically adjusts for the glare of
headlamps behind you.
Reverse Tilt Mirrors
If equipped with reverse tilt mirrors and
memory seats, the passenger and/or driver
mirror tilts to a preselected position when
the vehicle is in R (Reverse). This allows the
curb to be seen when parallel parking.
The mirror(s) may move from their tilted
position when:
.The vehicle is shifted out of R (Reverse),
or remains in R (Reverse) for about
30 seconds.
.The vehicle is turned off.
.The vehicle is driven in R (Reverse) above
a set speed.
To turn this feature on or off, see Vehicle
Personalization 0108.
Interior Mirrors
Interior Rearview Mirrors
Adjust the rearview mirror for a clear view
of the area behind the vehicle.
Do not spray glass cleaner directly on the
mirror. Use a soft towel dampened with
water.
Manual Rearview Mirror
If equipped, push the tab forward for
daytime use and pull it rearward for
nighttime use to avoid glare of the
headlamps from behind.
Automatic Dimming Rearview
Mirror
If equipped, automatic dimming reduces the
glare of headlamps from behind. The
dimming feature comes on when the vehicle
is started.
Windows
{
Warning
Never leave a child, a helpless adult, or a
pet alone in a vehicle, especially with the
windows closed in warm or hot weather.
They can be overcome by the extreme
heat and suffer permanent injuries or
even death from heat stroke.
The vehicle aerodynamics are designed to
improve fuel economy performance. This
may result in a pulsing sound when either
rear window is down and the front windows
are up. To reduce the sound, open either a
front window or the sunroof, if equipped.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Instruments and Controls 99
This light should come on briefly as the
engine is started. If it does not come on,
have the vehicle serviced by your dealer.
If the light comes on and stays on, it means
that oil is not flowing through the engine
properly. The vehicle could be low on oil
and might have some other system
problem. See your dealer.
Low Fuel Warning Light
Base Level English Shown, Metric Similar
Uplevel
A Low Fuel Warning Light near the fuel
gauge comes on briefly when the ignition is
turned on as a check to show it is working.
It also comes on when the fuel gauge
indicator nears empty. The light turns off
when fuel is added. If it does not, have the
vehicle serviced.
Security Light
The security light should come on briefly as
the engine is started. If it does not come on,
have the vehicle serviced by your dealer.
If the system is working normally, the
indicator light turns off. If the light stays on and the engine does
not start, there could be a problem with the
theft-deterrent system. See
Immobilizer
Operation 023.
High-Beam On Light
This light comes on when the high-beam
headlamps are in use. See Headlamp High/
Low-Beam Changer 0117.
IntelliBeam Light
This light comes on when the IntelliBeam
system, if equipped, is enabled. See Exterior
Lamp Controls 0116.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
116 Lighting
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . . . . . . . . . . . 116
Headlamp High/Low-Beam Changer . . . . 117
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Daytime Running Lamps (DRL) . . . . . . . . . 118
Automatic Headlamp System . . . . . . . . . . 118
Hazard Warning Flashers . . . . . . . . . . . . . . 119
Turn and Lane-Change Signals . . . . . . . . . 119
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Interior Lighting
Instrument Panel IlluminationControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . . . 120
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Reading Lamps . . . . . . . . . . . . . . . . . . . . . . . . 120
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Battery Load Management . . . . . . . . . . . . . 121
Battery Power Protection . . . . . . . . . . . . . . 122
Exterior Lighting Battery Saver . . . . . . . . . 122
Exterior Lighting
Exterior Lamp Controls
The exterior lamp control is on the
instrument panel to the left of the steering
column.
There are four positions.
O: Turns the exterior lamps off and
deactivates the AUTO mode. Turn to
O
again to reactivate the AUTO mode.
In Canada, the headlamps will automatically
reactivate when the vehicle is shifted out of
P (Park). AUTO :
Turns the exterior lamps on and off
automatically depending on outside lighting.
;: Turns on the parking lamps including
all lamps, except the headlamps.
5: Turns on the headlamps together with
the parking lamps and instrument panel
lights.
IntelliBeam®System
If equipped, this system turns the vehicle's
high-beam headlamps on and off according
to surrounding traffic conditions.
The system turns the high-beam headlamps
on when it is dark enough and there is no
other traffic present.
This light
bcomes on in the instrument
cluster when the IntelliBeam system is
enabled.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Lighting 117
Turning On and Enabling IntelliBeam
To enable the IntelliBeam system, press
bon the turn signal lever when it is
dark outside and the exterior lamp control is
in AUTO or
5.
Driving with IntelliBeam
The system only activates the high beams
when driving over 40 km/h (25 mph).
The blue high-beam on light appears on the
instrument cluster when the high beams
are on.
There is a sensor near the top center of the
windshield that automatically controls the
system. Keep this area of the windshield
clear of debris to allow for best system
performance. The high-beam headlamps remain on, under
the automatic control, until one of the
following situations occurs:
.The system detects an approaching
vehicle's headlamps.
.The system detects a preceding vehicle's
taillamps.
.The outside light is bright enough that
high-beam headlamps are not required.
.The vehicle's speed drops below 20 km/h
(12 mph).
.The IntelliBeam system is disabled by the
button on the turn signal lever. If this
happens, press
bon the turn signal
lever when the exterior lamp control is in
the AUTO or
5position to reactivate the
IntelliBeam system. The instrument
cluster light will come on to indicate the
IntelliBeam system is reactivated.
.The IntelliBeam system will turn off if the
fog lamps are turned on.
The high beams may not turn off
automatically if the system cannot detect
another vehicle's lamps because of any of
the following:
.The other vehicle's lamps are missing,
damaged, obstructed from view,
or otherwise undetected.
.The other vehicle's lamps are covered
with dirt, snow, and/or road spray.
.The other vehicle's lamps cannot be
detected due to dense exhaust, smoke,
fog, snow, road spray, mist, or other
airborne obstructions.
.The vehicle's windshield is dirty, cracked,
or obstructed by something that blocks
the view of the light sensor.
.The vehicle is loaded such that the front
end points upward, causing the light
sensor to aim high and not detect
headlamps and taillamps.
.The vehicle is being driven on winding or
hilly roads.
The automatic high-beam headlamps may
need to be disabled if any of the above
conditions exist.
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.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
118 Lighting
This indicator light turns on in the
instrument cluster when the high-beam
headlamps are on.
Flash-to-Pass
The flash-to-pass feature works with the low
beams or Daytime Running Lamps (DRL) on
or off.
To flash the high beams, pull the turn signal
lever toward you momentarily and then
release it.
Daytime Running Lamps (DRL)
DRL can make it easier for others to see the
front of your vehicle during the day.
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 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 ignition is off.
The regular headlamp system should be
turned on when needed.
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. Do not cover the sensor;
otherwise the headlamps will come on when
they are not needed. The system may also turn on the headlamps
when driving through a parking garage or
tunnel.
When it is bright enough outside, the
headlamps will turn off or may change to
Daytime Running Lamps (DRL).
The automatic headlamp system turns off
when the exterior lamp control is turned to
Oor the ignition is off.
Lights On with Wipers
If the windshield wipers are activated in
daylight with the engine on, and the
exterior lamp control is in AUTO, the
headlamps, parking lamps, and other
exterior lamps come on. The transition time
for the lamps coming on varies based on
wiper speed. When the wipers are not
operating, these lamps turn off. Move the
exterior lamp control to
Oor;to disable
this feature.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Lighting 119
Hazard Warning Flashers
|:Press to make the front and rear turn
signal lamps flash on and off. This warns
others that you are having trouble.
Press
|again to turn the flashers off.
Turn and Lane-Change Signals
Move the lever all the way up or down to
signal a turn.
An arrow on the instrument cluster flashes
in the direction of the turn or lane change.
Raise or lower the lever until the arrow
starts to flash to signal a lane change. Hold
it there until the lane change is completed.
If the lever is briefly pressed and released,
the turn signal flashes three times.
The turn and lane-change signal can be
turned off manually by moving the lever
back to its original position.
If after signaling a turn or lane change, the
arrow flashes rapidly or does not come on, a
signal bulb may be burned out. Replace any burned out bulbs. If a bulb is
not burned out, check the fuse. See
Fuses
and Circuit Breakers 0280.
Fog Lamps
The ignition and parking lamps or
headlamps must be on for the front fog
lamps to work.
If equipped, the front fog lamps provide
extra illumination to the sides of the road
and improve visibility in fog or snow.
#:Press to turn the fog lamps on or off.
An indicator light on the instrument cluster
comes on when the fog lamps are on.
Some localities have laws that require the
headlamps to be on along with the fog
lamps.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
120 Lighting
Some localities have laws that require the
high beams to be off when the fog lamps
are on.
Interior Lighting
Instrument Panel Illumination
Control
This feature adjusts the brightness of all
illuminated controls. The instrument panel
illumination control is next to the exterior
lamp control.
Push the knob in all the way until it extends
out and then turn the knob clockwise or
counterclockwise to brighten or dim the
lights. Push the knob back in when finished.
The knob is functional at night, or when the
headlamps or parking lamps are ON.
Courtesy Lamps
The courtesy lamps come on when
any door is opened,
Kon the RKE
transmitter is pressed, or when the ignition
is switched off. See Dome Lamps0120.
Dome Lamps
The dome lamp controls are in the overhead
console.
To operate, press the following buttons:
jOFF : Press to turn off the dome
lamps when any door is opened,
Kon the
RKE transmitter is pressed, or when the
ignition is switched off. An indicator light on
the button will turn on when the dome lamp override is activated. Press
jOFF
again to deactivate this feature and the
indicator light will turn off. The dome lamps
will come on when any door is opened,
K
on the RKE transmitter is pressed, or when
the ignition is switched off.
+ ON/OFF : Press to turn the dome lamps
on manually.
Reading Lamps
There are reading lamps on the overhead
console and over the rear passenger
doors. These lamps come on when any door
is opened,
Kon the RKE transmitter is
pressed, or when the ignition is
switched off.
To operate, the ignition must be on, or in
ACC/ACCESSORY, or using Retained Accessory
Power (RAP).

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
122 Lighting
(DIC), you may see the voltage move up or
down. This is normal. If there is a problem,
an alert will be displayed.
The battery can be discharged at idle if the
electrical loads are very high. This is true for
all vehicles. This is because the generator
(alternator) may not be spinning fast
enough at idle to produce all of the power
needed for very high electrical loads.
A high electrical load occurs when several of
the following are on, such as: headlamps,
high beams, rear window defogger, climate
control fan at high speed, heated seats,
engine cooling fans, trailer loads, and loads
plugged into accessory power outlets.
EPM works to prevent excessive discharge of
the battery. It does this by balancing the
generator's output and the vehicle's
electrical needs. It can increase engine idle
speed to generate more power whenever
needed. It can temporarily reduce the power
demands of some accessories.
Normally, these actions occur in steps or
levels, without being noticeable. In rare
cases at the highest levels of corrective
action, this action may be noticeable to the
driver. If so, a DIC message might bedisplayed and it is recommended that the
driver reduce the electrical loads as much as
possible.
Battery Power Protection
This feature shuts off the interior lamps if
they are left on for more than 10 minutes
when the ignition is off. This helps to
prevent the battery from running down.
Exterior Lighting Battery Saver
The exterior lamps turn off about 10 minutes
after the ignition is turned off, if the parking
lamps or headlamps have been manually
left on. This protects against draining the
battery. To restart the 10-minute timer, turn
the exterior lamp control to the off position
and then back to the parking lamp or
headlamp position.
To keep the lamps on for more than
10 minutes, the ignition must be on or in
ACC/ACCESSORY.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Driving and Operating 191
Loading the Vehicle for Off-Road Driving
{Warning
.Unsecured cargo on the load floor can
be tossed about when driving over
rough terrain. You or your passengers
can be struck by flying objects. Secure
the cargo properly.
.Keep cargo in the cargo area as far
forward and as low as possible. The
heaviest things should be on the floor,
forward of the rear axle.
.Heavy loads on the roof raise the
vehicle's center of gravity, making it
more likely to roll over. You can be
seriously or fatally injured if the
vehicle rolls over. Put heavy loads
inside the cargo area, not on the roof.
For more information about loading the
vehicle, see Vehicle Load Limits 0196.
Environmental Concerns
.Always use established trails, roads, and
areas that have been set aside for public
off-road recreational driving and obey all
posted regulations.
.Do not damage shrubs, flowers, trees,
or grasses or disturb wildlife.
.Do not park over things that burn. See
Parking over Things That Burn 0207.
Driving on Hills
Driving safely on hills requires good
judgment and an understanding of what the
vehicle can and cannot do.
{Warning
Many hills are simply too steep for any
vehicle. Driving up hills can cause the
vehicle to stall. Driving down hills can
cause loss of control. Driving across hills
can cause a rollover. You could be injured
or killed. Do not drive on steep hills.
Before driving on a hill, assess the
steepness, traction, and obstructions. If the
terrain ahead cannot be seen, get out of the
vehicle and walk the hill before driving
further.
When driving on hills:
.Use a low gear and keep a firm grip on
the steering wheel.
.Maintain a slow speed.
.When possible, drive straight up or down
the hill.
.Slow down when approaching the top of
the hill.
.Use headlamps even during the day to
make the vehicle more visible.
{Warning
Driving to the top of a hill at high speed
can cause a crash. There could be a
drop-off, embankment, cliff, or even
another vehicle. You could be seriously
injured or killed. As you near the top of a
hill, slow down and stay alert.
.Never go downhill forward or backward
with the transmission in N (Neutral). The
brakes could overheat and you could lose
control.
.When driving down a hill, keep the
vehicle headed straight down. Use a low
gear because the engine will work with
the brakes to slow the vehicle and help
keep the vehicle under control.
{Warning
Heavy braking when going down a hill
can cause your brakes to overheat and
fade. This could cause loss of control and (Continued)