2009 GMC ACADIA ECO mode

You can move the height adjuster
up by pushing up on the shoulder
belt guide.
After the adjuster is set to the desired
position, try to move it down without
pushing the button to make sure it
has locked into position.
Safety Belt Pretensioners
This vehicle has safety belt
pretensioners for the front outboard
occupants. Although the safety belt
pretensioners cannot be seen, they
are part of the safety belt assembly.
They can help tighten the safety belts
during the early stages of a moderate
to severe frontal, near frontal, or rear
crash if the threshold conditions for
pretensioner activation are met. And,
for vehicles with side impact airbags,
safety belt pretensioners can help
tighten the safety belts in a side
crash or a rollover event.Pretensioners work only once. If the
pretensioners activate in a crash,
they will need to be replaced, and
probably other new parts for the
vehicle’s safety belt system. See
Replacing Restraint System Parts
After a Crash on page 1-62.
Rear Safety Belt Comfort
Guides
Rear shoulder belt comfort guides
may provide added safety belt
comfort for older children who have
outgrown booster seats and for
some adults. When installed on a
shoulder belt, the comfort guide
positions the shoulder belt away
from the neck and head.
There is a guide for each
outboard passenger position
in the second row seat and all
passenger positions in the third row.Here is how to install a comfort
guide to the safety belt:
1. For the outboard positions,
remove the guide from its storage
clip on the interior body.
For the third row center position,
locate the comfort guide which
is located in a storage pocket,
at the top of the seat, under
the headrest on the driver’s
side of the vehicle.Outboard Positions
Seats and Restraint System 1-25

Notice:The engine is designed
to work with the electronics
in the vehicle. If you add electrical
parts or accessories, you could
change the way the engine
operates. Before adding electrical
equipment, check with your
dealer/retailer. If you do not, the
engine might not perform
properly. Any resulting damage
would not be covered by the
vehicle warranty.Engine Coolant Heater
The engine coolant heater can
provide easier starting and better
fuel economy during engine
warm-up in cold weather conditions
at or below 0°F (−18°C). Vehicles
with an engine coolant heater should
be plugged in at least four hours
before starting. Some models
may have an internal thermostat in
the cord which will prevent
engine coolant heater operation at
temperatures above 0°F (−18°C).
To Use the Engine Coolant
Heater
1. Turn off the engine.
2. Open the hood and unwrap the
electrical cord. The cord is
located on the driver side of the
engine compartment. It is
routed around the windshield
washer uid reservoir.
3. Plug the cord into a normal,
grounded 110-volt AC outlet.
{CAUTION
Plugging the cord into an
ungrounded outlet could cause an
electrical shock. Also, the wrong
kind of extension cord could
overheat and cause a re. You
could be seriously injured. Plug
the cord into a properly grounded
three-prong 110-volt AC outlet. If
the cord will not reach, use a
heavy-duty three-prong extension
cord rated for at least 15 amps.
4. Before starting the engine, be
sure to unplug and store the
cord as it was before to keep it
away from moving engine
parts. If you do not, it could be
damaged.
The length of time the heater should
remain plugged in depends on
several factors. Ask a dealer/retailer
in the area where you will be
parking the vehicle for the best
advice on this.
Features and Controls 2-23

N (Neutral):In this position, the
engine does not connect with
the wheels. To restart the engine
when the vehicle is already moving,
use N (Neutral) only. Also, use
N (Neutral) when the vehicle
is being towed.
{CAUTION
Shifting into a drive gear while the
engine is running at high speed is
dangerous. Unless your foot is
rmly on the brake pedal, the
vehicle could move very rapidly.
You could lose control and hit
people or objects. Do not shift into
a drive gear while the engine is
running at high speed.
Notice:Shifting out of P (Park)
or N (Neutral) with the engine
running at high speed may
damage the transmission. The
repairs would not be covered by
the vehicle warranty. Be sure
the engine is not running at high
speed when shifting the vehicle.D (Drive):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 35 mph
(56 km/h), push the accelerator
pedal about halfway down.
Going about 35 mph (56 km/h) or
more, push the accelerator all
the way down.
Notice:If your vehicle seems to
accelerate slowly or not shift
gears when you go faster, and
you continue to drive your vehicle
that way, you could damage the
transmission. Have your vehicle
serviced right away. You can drive
in LOW (L) when you are driving
less than 35 mph (56 km/h) and
DRIVE (D) for higher speeds
until then.
L (Low):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.
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 down hill or towing a trailer.
The vehicle has an electronic
shift position indicator within the
instrument panel 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
located 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. SeeDriver
Information Center (DIC) on
Features and Controls 2-25

Universal Home Remote
System Operation
If there is one triangular Light
Emitting Diode (LED) indicator
light above the Universal Home
Remote buttons, follow the
instructions below.
This system provides a way to
replace up to three remote control
transmitters used to activate devices
such as garage door openers,
security systems, and home
automation devices.
Do not use the Universal Home
Remote with any garage door
opener that does not have the stop
and reverse feature. This includes
any garage door opener model
manufactured before April 1, 1982.Read the instructions completely
before attempting to program
the Universal Home Remote.
Because of the steps involved, it
may be helpful to have another
person available to assist you in the
programming the Universal Home
Remote.
Keep the original hand-held
transmitter for use in other vehicles
as well as for future Universal
Home Remote programming. It is
also recommended that upon
the sale of the vehicle, the
programmed Universal Home
Remote buttons should be erased
for security purposes. See “Erasing
Universal Home Remote Buttons”
later in this section.
When programming a garage door,
park outside of the garage. Park
directly in line with and facing
the garage door opener motor-head
or gate motor-head. Be sure that
people and objects are clear of the
garage door or gate that is being
programmed.It is recommended that a new
battery be installed in your
hand-held transmitter for quicker
and more accurate transmission of
the radio-frequency signal.
Programming the Universal
Home Remote System
For questions or help programming
the Universal Home Remote
System, call 1-800-355-3515 or go
to www.homelink.com.
Programming a garage door opener
involves time-sensitive actions,
so read the entire procedure before
starting. Otherwise, the device
will time out and the procedure will
have to be repeated.
Features and Controls 2-45

they slowly dim after the delay time
until they go out. The delay time is
canceled if the ignition key is turned
to ON/RUN or the power door lock
switch is pressed. The lamps will dim
right away.
When the ignition is on, illuminated
entry is inactive, which means
the courtesy lamps will not come on
unless a door is opened.
Delayed Entry Lighting
Delayed entry lighting illuminates the
interior for a period of time after
all the doors have been closed.
The ignition must be off for delayed
entry lighting to work. Immediately
after all the doors have been closed,
the delayed entry lighting feature
will continue to work until one of the
following occurs:
The ignition is in ON/RUN.
The doors are locked.
An illumination period of
25 seconds has elapsed.If during the illumination period a
door is opened, the timed
illumination period will be canceled
and the interior lamps will remain
on because a door is open.
Delayed Exit Lighting
This feature illuminates the interior
for a period of time after the key
is removed from the ignition.
The ignition must be off for delayed
exit lighting to work. When the
key is removed, interior illumination
will activate and remain on until
one of the following occurs:
The ignition is in ON/RUN.
The power door locks are
activated.
An illumination period of
20 seconds has elapsed.
If during the illumination period a
door is opened, the timed
illumination period will be canceled
and the interior lamps will remain
on because a door is open.
Parade Dimming
Parade mode automatically prohibits
the dimming of the instrument panel
displays during the daylight while the
headlamps are on so that the
displays are still able to be seen.
Reading Lamps
The vehicle has reading lamps that
also act as the dome lamp. Press
the button to turn them on and off.
Electric Power
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.
Instrument Panel 3-15

Climate Controls
Climate Control System
The heating, cooling, and ventilation in the vehicle can be controlled with this
system.
A. Fan Control
B. Temperature Control
C. Air Delivery Mode Control
D. Air Conditioning
E. Rear
F. Recirculation
G. Rear Window Defogger
9(Off):Turn the fan control all
the way counterclockwise to turn the
front system off.
9(Fan Control): Turn clockwise
or counterclockwise to increase
or decrease the fan speed. Temperature Control:
Turn
clockwise or counterclockwise
to increase or decrease the
temperature of the air owing
from the system.
Air Delivery Mode Control: Turn
clockwise or counterclockwise
to change the current airow mode.
By positioning the right knob
between two modes, a combination
of those two modes is selected.
H(Vent): Air is directed to
the instrument panel outlets.
)(Bi-Level): Air is divided
between the instrument panel and
oor outlets. Some air is directed
towards the windshield and
side window outlets. Cooler air is
directed to the upper outlets
and warmer air to the oor outlets.
6(Floor): Air is directed to
the oor outlets, with some of the
air directed to the windshield,
side window, and second row oor
3-22 Instrument Panel

outlets. In this mode, the system
automatically selects outside
air. Recirculation cannot be selected
while in oor mode.
-(Defog):This mode clears
the windows of fog or moisture.
Air is directed to the windshield,
oor outlets, and side window vents.
When this mode is selected, the
system turns off recirculation
and runs the air conditioning unless
the outside temperature is less
than 40°F (4°C). Recirculation
cannot be selected while in the
defog mode. Do not drive the vehicle
until all the windows are clear.
0(Defrost):This mode quickly
clears the windshield of fog or frost.
Air is directed to the windshield
and side window vents, with some
to the oor vents. In this mode,
outside air is pulled inside the
vehicle. Recirculation cannot be
selected while in the defrost mode.
The air conditioning system runsautomatically in this setting, unless
the outside temperature is less
than 40°F (4°C). Do not drive the
vehicle until all the windows
are clear.
#(Air Conditioning):Press to
turn the air conditioning system on
or off. An indicator light comes
on when A/C is on. The air
conditioning system does not
operate when the outside
temperature is below 40°F (4°C).
The indicator light ashes three
times and turns off when outside
conditions affect air conditioning
operation. This is normal.
For quicker cool down on hot days:
1. Open the windows to let hot
air escape.
2. Select
Hmode.
3. Select
#.
4. Select the coolest temperature.
5. Select the highest fan speed.6. Close the windows after the
hot air has escaped.
7. Once the vehicle’s interior
temperature is below the outside
temperature, select
@mode
for faster cooling.
Using recirculation for long periods
of time could cause the air inside
of the vehicle to become too dry.
To prevent this from happening,
after the inside of the vehicle
has cooled, turn the recirculation
mode off.
The air conditioning system removes
moisture from the air, so a small
amount of water might drip under the
vehicle while idling or after turning off
the engine. This is normal.
@(Recirculation):Press to turn
the recirculation mode on or off.
An indicator light comes on when
recirculation is on. When the engine
is turned off, the recirculation mode
automatically turns off and must
be re-selected when the engine is
turned on again.
Instrument Panel 3-23

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) selected
and AUTO is shown on the
display. The current air delivery
mode and fan speed also appear
for approximately ve seconds.
When AUTO is selected, the air
conditioning and air inlet are
automatically controlled. The air
conditioning runs when the
outside temperature is over
40°F (4°C). The system is
automatically set to outside air,
unless it is hot outside and
then the air inlet changes to
recirculation mode to help quickly
cool the vehicle. The recirculation
indicator light will come on.2. Set the temperature for the driver
and passenger.
To nd a comfortable setting,
start with a 73°F (22°C)
temperature setting and allow
about 20 minutes for the system
to regulate. Use the driver’s
side or passenger side
temperature buttons to adjust
the temperature setting as
necessary. The system will
remain at the selected setting.
Choosing the warmest or coolest
temperatures will not cause
the vehicle to heat or cool
any faster.
To avoid blowing cold air in cold
weather, the system delays
turning on the fan until warm air
is available. Press the fan
control to override this delay and
select the fan speed.Temperature Control
The driver and passenger side
temperature buttons are used to
adjust the temperature of the
air coming through the system.
The temperature can be adjusted
even if the system is turned off since
outside air still enters the vehicle,
unless the recirculation mode
is selected. See “Recirculation” later
in this section.
Driver Side Temperature Control:
Press the + or−buttons to
increase or decrease the driver side
temperature. The driver’s side
temperature display will show the
temperature setting.
Passenger Side Temperature
Control:Press the + or−buttons
to increase or decrease the
passenger side temperature.
The passenger side display will
show the temperature setting.
PASS (Passenger):Press to set
the passenger temperature to match
the driver temperature setting.
3-26 Instrument Panel