
GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9159268) - 2016 - crc - 7/31/15
Instruments and Controls 133
on a hot engine, the air conditioning
compressor automatically turns off.
When the coolant temperature
returns to normal, the air
conditioning compressor turns back
on. You can continue to drive your
vehicle.
If this message continues to appear,
have the system repaired by your
dealer as soon as possible to avoid
damage to the engine.
ENGINE OVERHEATED IDLE
ENGINE
This message displays when the
engine coolant temperature is too
hot. Stop and allow the vehicle to
idle until it cools down. SeeEngine
Coolant Temperature Gauge 0113.
See Overheated Engine Protection
Operating Mode 0256 for
information on driving to a safe
place in an emergency.
ENGINE OVERHEATED STOP
ENGINE
This message displays and a
continuous chime sounds if the
engine cooling system reaches unsafe temperatures for operation.
Stop and turn off the vehicle as
soon as it is safe to do so to avoid
severe damage. This message
clears when the engine has cooled
to a safe operating temperature.
Engine Oil Messages
CHANGE ENGINE OIL SOON
This message displays when
service is required for the vehicle.
See your dealer. See
Engine Oil
0 246 andMaintenance Schedule
0 321.
Acknowledging the CHANGE
ENGINE OIL SOON message will
not reset the OIL LIFE REMAINING.
See “Oil Life” underDriver
Information Center (DIC) 0123 and
Engine Oil Life System 0249.
ENGINE OIL LOW —ADD OIL
On some vehicles, this message
displays when the engine oil level
may be too low. Check the oil level
before filling to the recommended
level. If the oil is not low and this message remains on, take the
vehicle to your dealer for service.
See
Engine Oil 0246.
OIL PRESSURE LOW STOP
ENGINE
This message displays when the
vehicle's engine oil pressure is low.
The oil pressure light also appears
on the instrument cluster. See
Engine Oil Pressure Light 0121.
Stop the vehicle immediately, as
engine damage can result from
driving a vehicle with low oil
pressure. Have the vehicle serviced
by your dealer as soon as possible
when this message is displayed.
Engine Power Messages
ENGINE POWER IS REDUCED
This message displays and a chime
sounds when the cooling system
temperature gets too hot and the
engine further enters the engine
coolant protection mode. See
Engine Overheating 0255 for
further information.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9159268) - 2016 - crc - 7/31/15
134 Instruments and Controls
This message also displays when
the vehicle's engine power is
reduced. Reduced engine power
can affect the vehicle's ability to
accelerate. If this message is on,
but there is no reduction in
performance, proceed to your
destination. The performance may
be reduced the next time the vehicle
is driven. The vehicle may be driven
at a reduced speed while this
message is on, but acceleration and
speed may be reduced. Anytime
this message stays on, the vehicle
should be taken to your dealer for
service as soon as possible.
Fuel System Messages
FUEL LEVEL LOW
This message displays and a chime
sounds if the fuel level is low. Refuel
as soon as possible. SeeFuel
Gauge 0112 and Fuel 0229 for
more information.
TIGHTEN GAS CAP
This message may display along
with the check engine light on the
instrument cluster if the vehicle's fuel cap is not tightened properly.
See
Malfunction Indicator Lamp
(Check Engine Light) 0117.
Reinstall the fuel cap fully. See
Filling the Tank 0231. The
diagnostic system can determine if
the fuel cap has been left off or
improperly installed. A loose or
missing fuel cap allows fuel to
evaporate into the atmosphere.
A few driving trips with the cap
properly installed should turn this
light and message off.
Key and Lock Messages
REPLACE BATTERY IN
REMOTE KEY
This message displays if a Remote
Keyless Entry (RKE) transmitter
battery is low. The battery needs to
be replaced in the transmitter. See
“Battery Replacement” under
Remote Keyless Entry (RKE)
System Operation 029.
Lamp Messages
AUTOMATIC LIGHT
CONTROL OFF
This message displays when the
automatic headlamps are turned off.
This message clears itself after
10 seconds.
AUTOMATIC LIGHT
CONTROL ON
This message displays when the
automatic headlamps are turned on.
This message clears itself after
10 seconds.
TURN SIGNAL ON
This message displays and a chime
sounds if a turn signal is left on for
1.2 km (0.75 mi). Move the turn
signal lever to the off position.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9159268) - 2016 - crc - 7/31/15
Lighting 151
This indicator light turns on in the
instrument cluster when the
high-beam headlamps are on.
Flash-to-Pass
This feature is used to signal to the
vehicle ahead that you want
to pass.
If the headlamps are off or in the
low-beam position, pull the turn
signal lever toward you to
momentarily switch to high beams.
Release the lever to turn the
high-beam headlamps off.
Daytime Running Lamps
(DRL)/Automatic
Headlamp System
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 makes the
low-beam headlamps come on at a
reduced brightness when the
following conditions are met:.
The ignition is in the ON/RUN
position.
. The exterior lamp control is
in AUTO.
. The engine is running.
When the DRL are on, the regular
headlamps, taillamps, sidemarker,
and other lamps will not be on. The
instrument cluster will not be lit.
The headlamps automatically
change from DRL to the regular
headlamps depending on the
darkness of the surroundings. The
other lamps that come on with the
headlamps will also come on.
When it is bright enough outside,
the headlamps will go off and the
DRL will come on.
The regular headlamp system
should be turned on when needed.
Do not cover the light sensor on top
of the instrument panel because it
works with the DRL.
Delayed Headlamps
Delayed headlamps provide a
period of exterior lighting as you
leave the area around the vehicle.
This feature is activated when the
headlamps are on due to the
automatic headlamps control feature
and when the ignition is turned off.
The headlamps remain on until the
exterior lamp control is moved to the
parking lamps position or until the
pre-selected delayed headlamp
lighting period has ended.
If the ignition is turned off with the
exterior lamp control in the
;
or5position, the delayed
headlamps cycle will not occur.
To disable the delayed headlamps
feature or change the time of delay,
see Vehicle Personalization 0140.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9159268) - 2016 - crc - 7/31/15
152 Lighting
Hazard Warning Flashers
|(Hazard Warning Flasher) :
Press this button 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.
The turn signals do not work while
the hazard warning flashers are on.
Turn and Lane-Change
Signals
Move the turn signal 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 lever returns to its starting
position whenever it is released. If after signaling a turn or lane
change the arrow flashes rapidly or
does not come on, a signal bulb
may be burned out.
Have any burned out bulbs
replaced. If a bulb is not burned out,
check the fuse. See
Fuses and
Circuit Breakers 0265.
Turn Signal On Chime
If either one of the turn signals is left
on and the vehicle has been driven
more than 1.2 km (0.75 mi), a chime
will sound.
Fog Lamps
Use the fog lamps for better vision
in foggy or misty conditions.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9159268) - 2016 - crc - 7/31/15
Lighting 153
The fog lamp button is on the
exterior lamp control to the left of
the steering column.
#(Fog Lamps) :Press this button
to turn the fog lamps on or off.
A light comes on in the instrument
cluster when the fog lamps are in
use. The ignition must be on for the
fog lamps to work.
When the headlamps are changed
to high beam, the fog lamps turn off.
The fog lamps come back on again
when the high-beam headlamps are
turned off.
Some localities have laws that
require the headlamps to be on
along with the fog lamps.
Interior Lighting
Instrument Panel
Illumination Control
The instrument panel brightness
knob is located on the instrument
panel to the left of the steering
column.
D(Instrument Panel
Brightness) : 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.
Courtesy Lamps
The courtesy lamps automatically
come on when a door is opened.
The lamps can also be turned on
manually by fully turning the
instrument panel brightness control
clockwise.
The reading lamps, located on the
headliner above the rearview mirror,
can be turned on or off
independently of the automatic
courtesy lamps, when the doors are
closed.
Dome Lamps
The dome lamps are in the
overhead console and above the
rear seat passengers.
The dome lamps come on when a
door is opened, unless the dome
lamp override button is pressed in.
The lamps can also be turned on
and off by turning the instrument
panel brightness control clockwise
to the farthest position.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9159268) - 2016 - crc - 7/31/15
158 Infotainment System
functions may gray out when they
are unavailable. Many infotainment
features are also available through
the instrument cluster and steering
wheel controls.
Before driving:
.Become familiar with the
operation, faceplate buttons, and
screen buttons.
. Set up the audio by presetting
favorite stations, setting the
tone, and adjusting the
speakers.
. Set up phone numbers in
advance so they can be called
easily by pressing a single
button or by using a single voice
command if equipped with
Bluetooth phone capability.
See Defensive Driving 0194.
To play the infotainment system with
the ignition off, see Retained
Accessory Power (RAP) 0208.Theft-Deterrent Feature
TheftLock®is designed to
discourage theft of the vehicle's
radio by learning a portion of the
Vehicle Identification Number (VIN).
The radio does not operate if it is
stolen or moved to a different
vehicle.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9159268) - 2016 - crc - 7/31/15
Climate Controls 185
Dual Automatic Climate Control System
The heating, cooling, and ventilation in the vehicle can be controlled with this
system.
1. Driver and Passenger SideTemperature Controls
2. Air Delivery Mode Controls
3. SYNC (Synchronized Temperature)
4. AUTO (Automatic Operation)
5. REAR (Rear Climate Control)
6. A/C (Air Conditioning)
7. Recirculation
8. Fan Control 9. Rear Window Defogger
10. Defrost
Display Function
Each time the temperature, mode,
or fan controls are adjusted, the
climate control display shows that
function along with the inside
temperature setting. The outside
temperature is displayed on the
instrument cluster.
((On/Off) : Turn clockwise or
counterclockwise to turn the climate
control system on or off.
The climate control system will also
turn on if the defrost, AUTO, or air
conditioning buttons are pressed.
Automatic Operation
AUTO (Automatic) : The system
automatically controls the inside
temperature, the air delivery, and
the fan speed.
To use automatic mode:
1. Press the AUTO button.
When AUTO is selected, the
current temperature(s) is
displayed and the AUTO
indicator light is on.
When AUTO is selected, the
air conditioning and air inlet are
automatically controlled. The
air conditioning runs when the
outside temperature is over 4 °
C (40 °F). The system is
automatically set to outside air,
unless it is hot outside and
then the air inlet changes to
recirculation mode to help

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9159268) - 2016 - crc - 7/31/15
Driving and Operating 213
D :This position is for normal
driving. It provides the best fuel
economy. If you need more power
for passing, and you are:
. Going less than 56 km/h
(35 mph), push the accelerator
pedal about halfway down.
. Going about 56 km/h (35 mph) or
more, push the accelerator all
the way down.
Caution
If the vehicle accelerates slowly,
or does not shift gears, the
transmission could be damaged.
Have the vehicle serviced
right away.
If the vehicle is stopped on a hill,
with your foot off the brake pedal,
the vehicle may roll. This is normal
and is due to the torque converter
designed to improve fuel economy
and performance. Use the brake to
hold the vehicle on a hill. Do not use
the accelerator pedal. L :
This position gives you access
to gear ranges. This provides more
engine braking but lower fuel
economy than D (Drive). You can
use it on very steep hills, or in deep
snow or mud. See Manual Mode
0 213.
Manual Mode
Electronic Range Select
(ERS) Mode
ERS mode allows you to choose the
top-gear limit of the transmission
and the vehicle's speed while
driving downhill or towing a trailer.
The vehicle has an electronic shift
position indicator within the
instrument cluster. When using the
ERS mode a number will display
next to the L, indicating the current
gear that has been selected.To use this feature:
1. Move the shift lever to L (Low).
2. Press the + (Plus)/− (Minus)
button on the shift lever, to
increase or decrease the gear
range available.
When you shift from D (Drive) to
L (Low), the transmission will shift to
a pre-determined lower gear range.
The highest gear available for this
pre-determined range is displayed
next to the L in the DIC. See Driver
Information Center (DIC) 0123. The
number displayed in the DIC is the
highest gear that the transmission
will be allowed to operate in. This
means that all gears below that