2012 GMC ACADIA lane assist

Black plate (7,1)GMC Acadia/Acadia Denali Owner Manual - 2012
Driving and Operating 9-7
.Keep the windshield washer fluid
reservoir filled.
.Have good tires with proper
tread depth. SeeTires on
page 10‑37.
.Turn off cruise control.
Highway Hypnosis
Always be alert and pay attention to
your surroundings while driving.
If you become tired or sleepy, find a
safe place to park the vehicle
and rest.
Other driving tips include:
.Keep the vehicle well ventilated.
.Keep the interior
temperature cool.
.Keep your eyes moving —scan
the road ahead and to the sides.
.Check the rearview mirror and
vehicle instruments often.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on flat or rolling terrain. Tips for
driving in these conditions include:
.Keep the vehicle serviced and in
good shape.
.Check all fluid levels and brakes,
tires, cooling system, and
transmission.
.Shift to a lower gear when going
down steep or long hills.
{WARNING
If you do not shift down, the
brakes could get so hot that they
would not work well. You would
then have poor braking or even
none going down a hill. You could
crash. Shift down to let the engine
assist the brakes on a steep
downhill slope.
{WARNING
Coasting downhill in N (Neutral)
or with the ignition off is
dangerous. The brakes will have
to do all the work of slowing down
and they could get so hot that
they would not work well. You
would then have poor braking or
even none going down a hill.
You could crash. Always have the
engine running and the vehicle in
gear when going downhill.
.Stay in your own lane. Do not
swing wide or cut across the
center of the road. Drive at
speeds that let you stay in your
own lane.
.Be alert on top of hills;
something could be in your lane
(stalled car, accident).
.Pay attention to special road
signs (falling rocks area, winding
roads, long grades, passing or
no-passing zones) and take
appropriate action.

Black plate (47,1)GMC Acadia/Acadia Denali Owner Manual - 2012
Driving and Operating 9-47
.Improve control of vehicle speed
while requiring less throttle pedal
activity.
.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. SeeTow/Haul
Mode on page 9‑26.
The Tow/Haul light on the
instrument panel comes 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
Trailer Towing on page 9‑49.
Tow/Haul is most useful when
pulling a heavy trailer or a large or
heavy load under the following
driving conditions:
.Traveling through rolling terrain.
.Traveling in stop and go traffic.
.Traveling 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
will not cause damage but there is
no benefit. Such a selection when
unloaded may result in unpleasant
engine and transmission driving
characteristics and reduced fuel
economy.
Following Distance
Stay at least twice as far behind the
vehicle ahead as you would when
driving the vehicle without a trailer.
This can help to avoid situations
that require heavy braking and
sudden turns.
Passing
More passing distance is needed
when towing a trailer. Because the
rig is longer, it is necessary to go
farther beyond the passed vehicle
before returning to the lane.
Backing Up
Hold the bottom of the steering
wheel with one hand. To move
the trailer to the left, move that
hand to the left. To move the trailer
to the right, move your hand to
the right. Always back up slowly
and, if possible, have someone
guide you.

Black plate (10,1)GMC Acadia/Acadia Denali Owner Manual - 2012
i-10 INDEX
S
Safety Belts . . . . . . . . . . . . . . . . . . . 3-15Care . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
Extender . . . . . . . . . . . . . . . . . . . . . . 3-22
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . . 3-16
Lap-Shoulder Belt . . . . . . . . . . . . 3-17
Reminders . . . . . . . . . . . . . . . . . . . . 5-15
Replacing after a Crash . . . . . . 3-23
Use During Pregnancy . . . . . . . . 3-22
Safety Defects Reporting
Canadian Government . . . . . . 13-20
General Motors . . . . . . . . . . . . . 13-20
U.S. Government . . . . . . . . . . . 13-19
Safety Locks . . . . . . . . . . . . . . . . . . . . 2-9
Safety System Check . . . . . . . . . . 3-23
Satellite Radio . . . . . . . . . . . . . . . . . . 7-8
Scheduling Appointments . . . . . 13-14
Sealant Kit, Tire . . . . . . . . . . . . . . 10-60
Seats Adjustment, Front . . . . . . . . . . . . . . 3-3
Head Restraints . . . . . . . . . . . . . . . 3-2
Heated and Ventilated Front . . . 3-9
Lumbar Adjustment, Front . . . . . 3-4
Memory . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Power Adjustment, Front . . . . . . 3-4 Seats (cont'd)
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Reclining Seatbacks . . . . . . . . . . . 3-5
Third Row Seat . . . . . . . . . . . . . . . 3-12
Securing Child Restraints . . . . . . . . . . . . . . 3-54, 3-56
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-2
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 2-13
Service Accessories andModifications . . . . . . . . . . . . . . . . 10-3
Doing Your Own Work . . . . . . . . 10-4
Engine Soon Light . . . . . . . . . . . . 5-18
Maintenance Records . . . . . . .11-14
Maintenance, General Information . . . . . . . . . . . . . . . . . . 11-1
Parts Identification Label . . . . . 12-1
Publications Ordering Information . . . . . . . . . . . . . . . . 13-18
Scheduling Appointments . . . 13-14
Vehicle Messages . . . . . . . . . . . . 5-43
Servicing the Airbag . . . . . . . . . . . 3-35
Shift Lock Control Function Check, Automatic
Transmission . . . . . . . . . . . . . . . . 10-26 Shifting
Into Park . . . . . . . . . . . . . . . . . . . . . . 9-20
Out of Park . . . . . . . . . . . . . . . . . . . 9-21
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 6-4
Spare Tire Compact . . . . . . . . . . . . . . . . . . . . 10-77
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . 12-2
Speedometer . . . . . . . . . . . . . . . . . . 5-13
StabiliTrak Indicator Light . . . . . . . . . . . . . . . . 5-22
System . . . . . . . . . . . . . . . . . . . . . . . 9-30
Start Assist, Hills . . . . . . . . . . . . . . 9-29
Start Vehicle, Remote . . . . . . . . . . 2-5
Starter Switch Check . . . . . . . . . 10-26
Starting the Engine . . . . . . . . . . . . 9-18
Steering . . . . . . . . . . . . . . . . . . . . . . . . 9-4 Fluid, Power . . . . . . . . . . . . . . . . 10-21
Wheel Adjustment . . . . . . . . . . . . . 5-2
Wheel Controls . . . . . . . . . . . . . . . . 5-2
Storage Areas Armrest . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Cargo Cover . . . . . . . . . . . . . . . . . . . 4-4
Cargo Management System . . . 4-4
Center Console . . . . . . . . . . . . . . . . 4-2