2009 GMC ACADIA charging

Tow/Haul Mode
Tow/Haul is a feature that assists
when pulling a heavy trailer or
a large or heavy load. The purpose
of the Tow/Haul mode is to:
Reduce the frequency and
improve the predictability of
transmission shifts when pulling
a heavy trailer or a large or
heavy load.
Provide the same solid shift feel
when pulling a heavy trailer or a
large or heavy load as when
the vehicle is unloaded.
Improve control of vehicle speed
while requiring less throttle pedal
activity when pulling a heavy
trailer or a large or heavy load.
Increase the charging system
voltage to assist in recharging
a battery installed in a trailer.Press this button located on the
console to turn on and turn off the
Tow/Haul mode.
The Tow/Haul light on the
instrument panel will come on to
indicate that Tow/Haul mode
has been selected.
Tow/Haul may be turned off by
pressing the button again, at which
time the indicator light on the
instrument panel will turn off. The
vehicle will automatically turn
off Tow/Haul every time it is started.
Tow/Haul is designed to be most
effective when the vehicle and
trailer combined weight is at
least 75 percent of the vehicle’s
Gross Combined Weight Rating
(GCWR). See Weight of the Trailerearlier in this section. Tow/Haul is
most useful under the following
driving conditions:
When pulling a heavy trailer or a
large or heavy load through
rolling terrain.
When pulling a heavy trailer or a
large or heavy load in stop and
go traffic.
When pulling a heavy trailer or a
large or heavy load in busy
parking lots where improved low
speed control of the vehicle is
desired.
Operating the vehicle in Tow/Haul
when lightly loaded or with no trailer
at all will not cause damage.
However, there is no benet to the
selection of Tow/Haul when the
vehicle is unloaded. Such a selection
when unloaded may result in
unpleasant engine and transmission
driving characteristics and reduced
fuel economy. Tow/Haul is
recommended only when pulling a
heavy trailer or a large or heavy load.
Driving Your Vehicle 4-31

B
Battery...............................5-28
Electric Power
Management.................3-15
Run-Down Protection.........3-16
Bluetooth
®..........................3-99
Brake
Emergencies...................... 4-5
Brake Fluid.........................5-25
Brakes...............................5-25
System Warning Light.......3-38
Braking................................ 4-3
Braking in Emergencies.......... 4-5
Break-In, New Vehicle..........2-20
Bulb Replacement................5-33
Halogen Bulbs..................5-33
Headlamp Aiming..............5-33
License Plate Lamps.........5-34
Replacement Bulbs...........5-34
Buying New Tires.................5-49
C
Calibration..........................3-54
California Fuel....................... 5-5
California Perchlorate
Materials Requirements....... 5-3
California Proposition 65
Warning............................ 5-3
Canadian Owners..................... ii
Capacities and
Specications...................5-96
Carbon
Monoxide........2-11, 2-30, 4-13
Care of
Safety Belts.....................5-84
Cargo Cover.......................2-52
Cargo Management System . . . 2-52
Cargo Tie Downs.................2-52
CD, MP3 ....................3-89, 3-93
Center Console
Storage Area....................2-49Chains, Tire........................5-54
Charging System Light..........3-37
Check
Engine Lamp...................3-41
Checking Things Under
the Hood ........................... 5-9
Chemical Paint Spotting........5-88
Child Restraints
Child Restraint Systems.....1-34
Infants and Young
Children.......................1-31
Lower Anchors and Tethers
for Children..................1-37
Older Children..................1-29
Securing a Child Restraint
in a Rear Seat Position....1-43
Securing a Child Restraint
in the Right Front
Seat Position................1-45
Where to Put the
Restraint......................1-35
i-2 INDEX

Hood
Checking Things Under....... 5-9
Release............................ 5-9
Horn .................................... 3-5
How to Wear Safety Belts
Properly..........................1-18
I
Ignition Positions..................2-20
Infants and Young Children,
Restraints........................1-31
Ination - Tire Pressure.........5-41
Inator Kit, Tire....................5-56
Instrument Panel
Brightness.......................3-14
Cluster............................3-34
Overview........................... 3-4
Storage Area....................2-49
J
Jump Starting......................5-28
K
Keyless Entry System............ 2-3
Keys.................................... 2-2
L
Labeling, Tire Sidewall..........5-36
Lamp
Malfunction Indicator.........3-41
Lamps
Courtesy.........................3-14
Dome .............................3-14
Dome Lamp Override........3-14
Reading..........................3-15
Lap-Shoulder Belt................1-23
LATCH System for Child
Restraints........................1-37
License Plate Lamps............5-34
Liftgate
Carbon Monoxide.............2-10
Liftgate, Power....................2-11
Light
Airbag Readiness.............3-36
Antilock Brake System
(ABS) Warning..............3-39
Brake System Warning......3-38
Charging System..............3-37
Cruise Control..................3-44
Engine Coolant
Temperature Warning.....3-40
Fog Lamp ........................3-44
Highbeam On...................3-45Light (cont.)
Oil Pressure.....................3-44
Passenger Airbag Status
Indicator.......................3-36
Safety Belt Reminders.......3-35
Security...........................3-44
StabiliTrak
®Indicator.........3-39
Tire Pressure...................3-41
Tow/Haul Mode................3-45
Lighting
Delayed Entry..................3-15
Delayed Exit....................3-15
Entry..............................3-14
Parade Dimming...............3-15
Lights
Exterior Lamps.................3-11
Flash-to-Pass..................... 3-7
High/Low Beam Changer..... 3-7
Loading Your Vehicle............4-16
Lockout Protection................. 2-9
Locks
Delayed Locking................. 2-8
Door ................................. 2-8
Lockout Protection.............. 2-9
Power Door....................... 2-8
Programmable Automatic
Door Locks.................... 2-9
Rear Door Security Locks.... 2-9
i-6 INDEX