cruise control GMC TERRAIN 2021 Owner's Guide

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
238 Driving and Operating
FCA detects vehicles within a distance of
approximately 60 m (197 ft) and operates at
speeds above 8 km/h (5 mph).
{Warning
FCA is a warning system and does not
apply the brakes. When approaching a
slower-moving or stopped vehicle ahead
too rapidly, or when following a vehicle
too closely, FCA may not provide a
warning with enough time to help avoid
a crash. It also may not provide any
warning at all. FCA does not warn of
pedestrians, animals, signs, guardrails,
bridges, construction barrels, or other
objects. Be ready to take action and
apply the brakes. SeeDefensive Driving
0 187.
FCA can be disabled with the FCA steering
wheel control, or if equipped, through
vehicle personalization. See “Collision/
Detection Systems” underVehicle
Personalization 0108.
Detecting the Vehicle Ahead
FCA warnings will not occur unless the FCA
system detects a vehicle ahead. When a
vehicle is detected, the vehicle ahead
indicator will display green. Vehicles may
not be detected on curves, highway exit
ramps, or hills, due to poor visibility; or if a
vehicle ahead is partially blocked by
pedestrians or other objects. FCA will not
detect another vehicle ahead until it is
completely in the driving lane.
{Warning
FCA does not provide a warning to help
avoid a crash, unless it detects a vehicle.
FCA may not detect a vehicle ahead if
the FCA sensor is blocked by dirt, snow,
or ice, or if the windshield is damaged.
It may also not detect a vehicle on
winding or hilly roads, or in conditions
that can limit visibility such as fog, rain,
(Continued)
Warning (Continued)
or snow, or if the headlamps or
windshield are not cleaned or in proper
condition. Keep the windshield,
headlamps, and FCA sensors clean and in
good repair.
Collision Alert
When your vehicle approaches another
detected vehicle too rapidly, the red FCA
display will flash on the windshield. Also,
eight rapid high-pitched beeps will sound
from the front, or both sides of the Safety
Alert Seat will pulse five times. When this
Collision Alert occurs, the brake system may
prepare for driver braking to occur more
rapidly which can cause a brief, mild
deceleration. Continue to apply the brake
pedal as needed. Cruise control may be
disengaged when the Collision Alert occurs.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
242 Driving and Operating
for driver braking to occur more rapidly,
which can cause a brief, mild deceleration.
Continue to apply the brake pedal as
needed. Cruise control may be disengaged
when the Front Pedestrian Alert occurs.
Automatic Braking
If FPB detects it is about to crash into a
pedestrian directly ahead, and the brakes
have not been applied, FPB may
automatically brake moderately or brake
hard. This can help to avoid some very low
speed pedestrian crashes or reduce
pedestrian injury. FPB can automatically
brake to detected pedestrians between
8 km/h (5 mph) and 80 km/h (50 mph).
Automatic braking levels may be reduced
under certain conditions, such as higher
speeds.
If this happens, Automatic Braking may
engage the Electric Parking Brake (EPB) to
hold the vehicle at a stop. Release the EPB.
A firm press of the accelerator pedal will
also release Automatic Braking and the EPB.
{Warning
FPB may alert or automatically brake the
vehicle suddenly in situations where it is
unexpected and undesired. It could falsely
alert or brake for objects similar in shape
or size to pedestrians, including shadows.
This is normal operation and the vehicle
does not need service. To override
Automatic Braking, firmly press the
accelerator pedal, if it is safe to do so.
Automatic Braking can be disabled through
vehicle personalization. See “Front Pedestrian
Detection” in“Collision/Detection Systems”
under Vehicle Personalization 0108.
{Warning
Using the Front Pedestrian Braking
system while towing a trailer could cause
you to lose control of the vehicle and
crash. Turn the system to Alert or Off
when towing a trailer.
Cleaning the System
If FPB does not seem to operate properly,
cleaning the outside of the windshield in
front of the rearview mirror may correct the
issue.
Side Blind Zone Alert (SBZA)
If equipped, the SBZA system is a
lane-changing aid that assists drivers with
avoiding crashes that occur with moving
vehicles in the side blind zone, or blind spot
areas. When the vehicle is in a forward gear,
the left or right side mirror display will light
up if a moving vehicle is detected in that
blind zone. If the turn signal is activated and
a vehicle is also detected on the same side,
the display will flash as an extra warning
not to change lanes. Since this system is
part of the Lane Change Alert (LCA) system,
read the entire LCA section before using this
feature.
Lane Change Alert (LCA)
If equipped, the LCA system is a
lane-changing aid that assists drivers with
avoiding lane change crashes that occur with
moving vehicles in the side blind zone (or
spot) areas or with vehicles rapidly
approaching these areas from behind. The

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Driving and Operating 249
Driving Characteristics and
Towing Tips
{Warning
You can lose control when towing a
trailer if the correct equipment is not
used or the vehicle is not driven properly.
For example, if the trailer is too heavy or
the trailer brakes are inadequate for the
load, the vehicle may not stop as
expected. You and others could be
seriously injured. The vehicle may also be
damaged, and the repairs would not be
covered by the vehicle warranty. Pull a
trailer only if all the steps in this section
have been followed. Ask your dealer for
advice and information about towing a
trailer with the vehicle.
Driving with a Trailer
Trailering is different than just driving the
vehicle by itself. Trailering means changes in
handling, acceleration, braking, durability,
and fuel economy. Successful, safe trailering
takes correct equipment, and it has to be
used properly.The following information has many
time-tested, important trailering tips and
safety rules. Many of these are important
for your safety and that of your passengers.
Read this section carefully before pulling a
trailer.
When towing a trailer:
.Become familiar with and follow all state
and local laws that apply to trailer
towing. These requirements vary from
state to state.
.State laws may require the use of
extended side view mirrors. Even if not
required, you should install extended side
view mirrors if your visibility is limited or
restricted while towing.
.Do not tow a trailer during the first
800 km (500 mi) of vehicle use to prevent
damage to the engine, axle, or other
parts.
.It is recommended to perform the first oil
change before heavy towing.
.During the first 800 km (500 mi) of trailer
towing, do not drive over 80 km/h
(50 mph) and do not make starts at full
throttle.
.Vehicles can tow in D (Drive). If the
transmission downshifts too often, a
lower gear may be selected using Manual
Mode See
Manual Mode 0211.
If equipped, the following driver assistance
features should be turned off when towing
a trailer:
.Adaptive Cruise Control (ACC)
.Super Cruise Control
.Lane Keep Assist (LKA)
.Park Assist
.Automatic Parking Assist (APA)
.Reverse Automatic Braking (RAB)
If equipped, the following driver assistance
features should be turned to alert or off
when towing a trailer:
.Automatic Emergency Braking (AEB)
.Intelligent Brake Assist (IBA)
.Front Pedestrian Braking (FPB)
If equipped with Lane Change Alert (LCA),
the LCA detection zones that extend back
from the side of the vehicle do not move
further back when a trailer is towed. Use
caution while changing lanes when towing a
trailer.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/-
Mexico-14420055) - 2021 - CRC - 11/13/20
Index 365
IndexA
About Driving the Vehicle . . . . . . . . . . . . . . . . . .2
Accessories and Modifications . . . . . . . . . . . 258
Accessory Power . . . . . . . . . . . . . . . . . . . . . . . . . 204
Adaptive Cruise Control . . . . . . . . . . . . . . . . . . 222
Add-On Electrical Equipment . . . . . . . . . . . . . 256
Additional InformationOnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358
Additional Maintenance and Care . . . . . . . . 336
Adjustments Lumbar, Front Seats . . . . . . . . . . . . . . . . . . . . 32
Agreements Trademarks and License . . . . . . . . . . . . . . . 169
Air Cleaner/Filter, Engine . . . . . . . . . . . . . . . . 265
Air Conditioning . . . . . . . . . . . . . . . . . . . . . 178, 180
Air Filter
Life System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Air Filter, Passenger Compartment . . . . . . . .182
Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .182
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
How Does an Airbag Restrain? . . . . . . . . . . . 51
Passenger Sensing System . . . . . . . . . . . . . . 52
What Makes an Airbag Inflate? . . . . . . . . . 50
What Will You See after an AirbagInflates? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
When Should an Airbag Inflate? . . . . . . . . 50
Where Are the Airbags? . . . . . . . . . . . . . . . . 48 Airbags
Adding Equipment to the Vehicle . . . . . . . 56
Passenger Status Indicator . . . . . . . . . . . . . . 92
Readiness Light . . . . . . . . . . . . . . . . . . . . . . . . . 92
Servicing Airbag-Equipped Vehicles . . . . . . 55
System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Alarm
Vehicle Security . . . . . . . . . . . . . . . . . . . . . . . . 22
Alert Lane Change . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Side Blind Zone (SBZA) . . . . . . . . . . . . . . . . . 242
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 287
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . 212, 274
AM-FM Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Antenna Multi-band . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Antilock Brake System (ABS) . . . . . . . . . . . . . . 212 Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Apple CarPlay and Android Auto . . . . . . . . . 160
Assistance Program, Roadside . . . . . . . . . . . . 349
Assistance Systems for Driving . . . . . . . . . . 237
Assistance Systems for Parking and Backing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Audio Bluetooth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/-
Mexico-14420055) - 2021 - CRC - 11/13/20
Index 367
Climate Control Systems (cont'd)Dual Automatic . . . . . . . . . . . . . . . . . . . . . . . . 180
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Cluster, Instrument . . . . . . . . . . . . . . . . . . . 85, 88
Collision Damage Repair . . . . . . . . . . . . . . . . . 352
Compact Spare Tire . . . . . . . . . . . . . . . . . . . . . . . 315
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Compressor Kit, Tire Sealant . . . . . . . . . . . . . 305
Connected Services Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 363
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362
Connections
Connected Services . . . . . . . . . . . . . . . . . . . . 363
Control Hill Descent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Traction and Electronic Stability . . . . . . . 214
Control Light
Hill Descent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Control of a Vehicle . . . . . . . . . . . . . . . . . . . . . 188
Controls Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . 126
Convenience Net . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Coolant
Engine Temperature Gauge . . . . . . . . . . . . . 91
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178, 180
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Courtesy Transportation Program . . . . . . . . . 351
Cover Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Coverage Explanations . . . . . . . . . . . . . . . . . . . 150
Covers Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 220 Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Cruise Control, Adaptive . . . . . . . . . . . . . . . . . 222
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Customer Assistance . . . . . . . . . . . . . . . . . . . . . 348 Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
Text Telephone (TTY) Users . . . . . . . . . . . . 348
Customer Information Publications Ordering Information . . . . . 353
Customer Satisfaction Procedure . . . . . . . . . 346
Cybersecurity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355
D
Damage Repair, Collision . . . . . . . . . . . . . . . . . 352
Danger, Warning, and Caution . . . . . . . . . . . . . .2
Data Collection
Infotainment System . . . . . . . . . . . . . . . . . . 356 Data Collection (cont'd)
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Data Recorders, Event . . . . . . . . . . . . . . . . . . . 356
Database Coverage Explanations . . . . . . . . . 150
Daytime Running Lamps (DRL) . . . . . . . . . . . . 118
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . . . .187
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142
Diagnostics Connected Services . . . . . . . . . . . . . . . . . . . . 364
Distracted Driving . . . . . . . . . . . . . . . . . . . . . . . . .187
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 16
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Power Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Drive Belt Routing, Engine . . . . . . . . . . . . . . . 345
Drive Systems All-Wheel Drive . . . . . . . . . . . . . . . . . . . . 212, 274
Driver
Teen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Driver Assistance Systems . . . . . . . . . . . . . . . . 231
Driver Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Driver Information Center (DIC) . . . . . 100, 105
Driver Mode Control . . . . . . . . . . . . . . . . . . . . . .218
Driving Assistance Systems . . . . . . . . . . . . . . . . . . . . 237

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/-
Mexico-14420055) - 2021 - CRC - 11/13/20
370 Index
Infotainment System . . . . . . . . . . . . . . . . . . . . 356
Instrument Cluster . . . . . . . . . . . . . . . . . . . . 85, 88
Instrument Panel Overview . . . . . . . . . . . . . . . . 4
Interior Rearview Mirrors . . . . . . . . . . . . . . . . . .25
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 1, 123
J
Jump Starting - North America . . . . . . . . . . . 316
K
Keyless EntryRemote (RKE) System . . . . . . . . . . . . . . . . . . . . 7
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
L
Labeling, Tire Sidewall . . . . . . . . . . . . . . . . . . . 288
Lamps Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Daytime Running (DRL) . . . . . . . . . . . . . . . . . 118
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Exterior Controls . . . . . . . . . . . . . . . . . . . . . . . . 116
Exterior Lighting Battery Saver . . . . . . . . 122
Front Turn Signal . . . . . . . . . . . . . . . . . . . . . . 278
License Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Malfunction Indicator (Check
Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
On Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Lamps (cont'd)
Taillamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Lane Change Alert (LCA) . . . . . . . . . . . . . . . . . 242
Lane Keep Assist (LKA) . . . . . . . . . . . . . . . . . . . 244
Lane Keep Assist Light . . . . . . . . . . . . . . . . . . . . 96
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . . . 42
LATCH System Replacing Parts after a Crash . . . . . . . . . . . 68
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Illumination Control . . . . . . . . . . . . . . . . . . . 120
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Lights Airbag Readiness . . . . . . . . . . . . . . . . . . . . . . . 92
Antilock Brake System (ABS)Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Brake System Warning . . . . . . . . . . . . . . . . . 95
Charging System . . . . . . . . . . . . . . . . . . . . . . . 93
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . 100
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Electric Parking Brake . . . . . . . . . . . . . . . . . . . 95 Lights (cont'd)
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . . 98
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Front Fog Lamp . . . . . . . . . . . . . . . . . . . . . . . . 100
High-Beam On . . . . . . . . . . . . . . . . . . . . . . . . . . 99
High/Low Beam Changer . . . . . . . . . . . . . . . 117
Hill Descent Control . . . . . . . . . . . . . . . . . . . . 96
Lane Keep Assist . . . . . . . . . . . . . . . . . . . . . . . . 96
Low Fuel Warning . . . . . . . . . . . . . . . . . . . . . . 99
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . . 91
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Service Electric Parking Brake . . . . . . . . . . . 95
StabiliTrak OFF . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . . 96
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . . . . . . . . . . . 98
Traction Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . . . . . . 16
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 16
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . 16
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . 99