2020 GMC ACADIA engine

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
Instruments and Controls 149
the ground near the rear wheels.
They will return to their previous
driving position when the vehicle is
shifted out of R (Reverse) or the
engine is turned off. SeeReverse
Tilt Mirrors 033.
Touch Off, On - Driver and
Passenger, On - Driver, or On -
Passenger.
Remote Mirror Folding
When on, the outside mirrors will
automatically fold or unfold when
the Remote Keyless Entry (RKE)
transmitter
QorKis pressed and
held on.
Touch Off or On.
Auto Wipe in Reverse Gear
When on and the front wiper is on,
the rear wiper will automatically
activate when the vehicle is shifted
to R (Reverse).
Select Off or On.
Extended Hill Start Assist
This allows the duration of the Hill
Start Assist to be changed. Touch Extended Hold or
Standard Hold.
Lighting
Touch and the following may
display:
.
Vehicle Locator Lights
. Exit Lighting
Vehicle Locator Lights
This setting flashes the headlamps
of your vehicle when you press
K
on the Remote Keyless Entry (RKE)
transmitter.
Touch Off or On.
Exit Lighting
This setting specifies how long the
headlamps stay on after the vehicle
is turned off and exited.
Touch Off, 30 Seconds, 60 Seconds,
or 120 Seconds.
Power Door Locks
Touch and the following may
display:
. Open Door Anti Lock Out .
Auto Door Unlock
. Delayed Door Lock
Open Door Anti Lock Out
This setting prevents the driver door
from locking when the door is open.
If this setting is on, the Delayed
Door Lock menu will not be
available.
Touch Off or On.
Auto Door Unlock
This setting allows selection of
which doors will automatically
unlock when the vehicle is shifted
into P (Park).
Touch Off, All Doors, or Driver Door.
Delayed Door Lock
This setting delays the locking of
the vehicle’ s doors.
Touch Off or On.
Remote Lock, Unlock, Start
Touch and the following may
display:
. Remote Unlock Light Feedback
. Remote Lock Feedback

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
158 Lighting
.The parking brake is released or
the vehicle is not in P (Park).
When the DRL are on, the taillamps
and other lamps will not be on.
The DRL turn off when the
headlamps are turned to
Oor the
ignition is off. For vehicles first sold
in Canada, the DRL can only be
turned off when the vehicle is
parked.
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.
The system may also turn on the
headlamps when driving through a
parking garage or tunnel.
If the vehicle is started in a dark
garage, the automatic headlamp
system comes on immediately. If it
is light outside when the vehicle
leaves the garage, there is a slight
delay before the automatic
headlamp system changes to the
Daytime Running Lamps (DRL).
During that delay, the instrument
cluster may not be as bright as
usual. Make sure the instrument panel brightness control is in the full
bright position. See
Instrument
Panel Illumination Control 0160.
When it is bright enough outside,
the headlamps will turn off or may
change to DRL.
The automatic headlamp system
turns off when the exterior lamp
control is turned to
Oor the ignition
is off.
For vehicles sold in Canada, this
control only works when the
transmission is in P (Park).
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
O
or;to disable this feature.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
162 Lighting
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 Personalization0146.
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.
When the state of charge is high,
the voltage is lowered slightly to
prevent overcharging. If the vehicle
has a voltmeter gauge or a voltage
display on the Driver Information Center (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 battery voltage
and charging message displays. It is
recommended that the driver reduce
the electrical loads as much as
possible. See
Driver Information
Center (DIC) (Base) 0137 or
Driver Information Center (DIC)
(Midlevel and Uplevel) 0139.
Battery Power Protection
The battery saver feature is
designed to protect the vehicle's
battery.
If some interior lamps are left on
and the ignition is turned off, the
battery rundown protection system
automatically turns the lamp off after
some time.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
164 Infotainment System
Infotainment
System
Introduction
Infotainment . . . . . . . . . . . . . . . . . . 164
Introduction
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. ANC
requires the factory-installed audio
system, radio, speakers, amplifier (if
equipped), induction system, and
exhaust system to work properly.
Deactivation is required by your
dealer if related aftermarket
equipment is installed.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
Driving and Operating 173
Driving and
Operating
Driving Information
Driving for Better FuelEconomy . . . . . . . . . . . . . . . . . . . . 174
Distracted Driving . . . . . . . . . . . . 174
Defensive Driving . . . . . . . . . . . . . 175
Drunk Driving . . . . . . . . . . . . . . . . . 175
Control of a Vehicle . . . . . . . . . . . 176
Braking . . . . . . . . . . . . . . . . . . . . . . . 176
Steering . . . . . . . . . . . . . . . . . . . . . . 176
Off-Road Recovery . . . . . . . . . . . 177
Loss of Control . . . . . . . . . . . . . . . 177
Off-Road Driving . . . . . . . . . . . . . 178
Driving on Wet Roads . . . . . . . . 182
Hill and Mountain Roads . . . . . 183
Winter Driving . . . . . . . . . . . . . . . . 184
If the Vehicle Is Stuck . . . . . . . . 185
Vehicle Load Limits . . . . . . . . . . . 186
Starting and Operating
New Vehicle Break-In . . . . . . . . . 190
Ignition Positions . . . . . . . . . . . . . 190
Starting the Engine . . . . . . . . . . . 192
Stop/Start System . . . . . . . . . . . . 193
Engine Heater . . . . . . . . . . . . . . . . 194 Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . 196
Shifting Into Park . . . . . . . . . . . . . 197
Shifting out of Park . . . . . . . . . . . 198
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . 199
Active Fuel Management . . . . . 199
Extended Parking . . . . . . . . . . . . 200
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 200
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . 201
Automatic Transmission
Automatic Transmission . . . . . . 201
Manual Mode . . . . . . . . . . . . . . . . . 205
Tow/Haul Mode . . . . . . . . . . . . . . . 206
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . 206
Brakes
Electric Brake Boost . . . . . . . . . . 206
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 206
Electric Parking Brake . . . . . . . . 207
Brake Assist . . . . . . . . . . . . . . . . . . 208
Hill Start Assist (HSA) . . . . . . . . 209
Ride Control Systems
Traction Control/Electronic Stability Control . . . . . . . . . . . . . 209
Hill Descent Control (HDC) . . . 211
Driver Mode Control . . . . . . . . . . 212
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 214
Adaptive Cruise Control . . . . . . 216
Driver Assistance Systems
Driver Assistance Systems . . . 225
Assistance Systems for Parking or Backing . . . . . . . . . . 227
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . 231
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . 231
Automatic Emergency Braking (AEB) . . . . . . . . . . . . . . . 234
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . 236
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . . 238
Lane Change Alert (LCA) . . . . . 238
Lane Keep Assist (LKA) . . . . . . 240
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . 242
Recommended Fuel . . . . . . . . . . 242
Prohibited Fuels . . . . . . . . . . . . . . 243

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
174 Driving and Operating
Fuels in Foreign Countries . . . 243
Fuel Additives . . . . . . . . . . . . . . . . 243
Filling the Tank . . . . . . . . . . . . . . . 243
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 245
Trailer Towing
General Towing
Information . . . . . . . . . . . . . . . . . . 246
Driving Characteristics and Towing Tips . . . . . . . . . . . . . . . . . 246
Trailer Towing . . . . . . . . . . . . . . . . 250
Towing Equipment . . . . . . . . . . . . 253
Trailer Sway Control (TSC) . . . 256
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . 258
Driving Information
Driving for Better Fuel
Economy
Driving habits can affect fuel
mileage. Here are some driving tips
to get the best fuel economy
possible.
. Set the climate controls to the
desired temperature after the
engine is started, or turn them
off when not required.
. On AWD vehicles, see Driver
Mode Control 0212.
. Avoid fast starts and accelerate
smoothly.
. Brake gradually and avoid
abrupt stops.
. Avoid idling the engine for long
periods of time.
. When road and weather
conditions are appropriate, use
cruise control.
. Always follow posted speed
limits or drive more slowly when
conditions require. .
Keep vehicle tires properly
inflated.
. Combine several trips into a
single trip.
. Replace the vehicle's tires with
the same TPC Spec number
molded into the tire's sidewall
near the size.
. Follow recommended scheduled
maintenance.
Distracted Driving
Distraction comes in many forms
and can take your focus from the
task of driving. Exercise good
judgment and do not let other
activities divert your attention away
from the road. Many local
governments have enacted laws
regarding driver distraction. Become
familiar with the local laws in
your area.
To avoid distracted driving, keep
your eyes on the road, keep your
hands on the steering wheel, and
focus your attention on driving.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
176 Driving and Operating
Control of a Vehicle
Braking, steering, and accelerating
are important factors in helping to
control a vehicle while driving.
Braking
Braking action involves perception
time and reaction time. Deciding to
push the brake pedal is perception
time. Actually doing it is
reaction time.
Average driver reaction time is
about three-quarters of a second. In
that time, a vehicle moving at
100 km/h (60 mph) travels 20 m
(66 ft), which could be a lot of
distance in an emergency.
Helpful braking tips to keep in mind
include:
.Keep enough distance between
you and the vehicle in front
of you.
. Avoid needless heavy braking.
. Keep pace with traffic. If the engine ever stops while the
vehicle is being driven, brake
normally but do not pump the
brakes. Doing so could make the
pedal harder to push down. If the
engine stops, there will be some
power brake assist but it will be
used when the brake is applied.
Once the power assist is used up, it
can take longer to stop and the
brake pedal will be harder to push.
Steering
Electric Power Steering
Caution
To avoid damage to the steering
system, do not drive over curbs,
parking barriers, or similar objects
at speeds greater than 3 km/h
(1 mph). Use care when driving
over other objects such as lane
dividers and speed bumps.
Damage caused by misuse of the
vehicle is not covered by the
vehicle warranty.
The vehicle has electric power
steering. It does not have power
steering fluid. Regular maintenance
is not required.
If power steering assist is lost due
to a system malfunction, the vehicle
can be steered, but may require
increased effort.
If the steering assist is used for an
extended period of time while the
vehicle is not moving, power assist
may be reduced.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
Driving and Operating 179
Caution
Operating the vehicle for
extended periods without the front
fascia lower air dam installed can
cause improper airflow to the
engine. Reattach the front fascia
air dam after off-road driving.
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
(Continued)
Warning (Continued)
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
0 186.
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 0199.
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.