change time GMC ACADIA 2007 Owner's Guide

O(Power):Press this knob to turn the radio on
or off. Turn this knob clockwise or counterclockwise
to increase or decrease the volume. Press and hold
the knob for more than two seconds to turn off the
entire radio and Rear Seat Entertainment (RSE)
system and to start the parental control feature.
Parental control prevents the rear seat occupant
from operating the Rear Seat Audio (RSA) system
or remote control.
A lock symbol appears next to the clock display.
The parental control feature remains on until
you press and hold this button for more than
two seconds again, or until the driver turns the
ignition off and exits the vehicle.
f(Tune):Turn this knob to change tracks on
a CD or DVD, to manually tune a radio station,
or to change clock or date settings, while in
the clock or date setting mode. See the information
given earlier in this section specic to the radio,
CD, and the DVD. Also, seeSetting the Time
on page 266, for setting the clock and date.
©SEEK (Previous Track/Chapter):Press this
button to return to the start of the current track
or chapter. Press this button again to go to
the previous track or chapter. This button might
not work when the DVD is playing the copyright
information or the previews.
SEEK
¨(Next Track/Chapter):Press this button
to go to the next track or chapter. This button
might not work when the DVD is playing the
copyright information or the previews.
sREV (Reverse):Press this button to quickly
reverse the CD or DVD, at ve times the normal
speed. The radio displays the elapsed time while in
fast reverse. To stop fast reversing, press this
button again. This button might not work when the
DVD is playing the copyright information or the
previews.
\FWD (Fast Forward):Press this button to
fast forward the CD or DVD. The radio displays the
elapsed time and fast forwards ve times the
normal speed. To stop fast forwarding, press this
button again. This button might not work when
the DVD is playing the copyright information or the
previews.
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For optimal audio performance, the headphones
must be worn correctly. The symbol L (Left)
appears on the upper left side, above the ear pad
and should be positioned on the left ear. The
symbol R (Right) appears on the upper right side,
above the ear pad and should be positioned on
the right ear.
Notice:Do not store the headphones in heat
or direct sunlight. This could damage the
headphones and repairs will not be covered by
your warranty. Keep the headphones stored
in a cool, dry place.
If the foam ear pads attached to the headphones
become worn or damaged, the pads can be
replaced separately from the headphone set
through your dealer/retailer for more information.
Headphones should be stored in the front oor
console and not in the front seat back pocket.
Headphone damage can occur when the second
row seats are folded forward.Battery Replacement
To change the batteries on the headphones,
do the following:
1. Turn the screw with a coin or screw driver to
loosen the battery door located on the left
side of the headphones. Slide the battery
door open.
2. Replace the two batteries in the compartment.
Make sure that they are installed correctly,
using the diagram on the inside of the battery
compartment.
3. Replace the battery door and tighten the
door screw.
If the headphones are to be stored for a long
period of time, remove the batteries and keep
them in a cool, dry place.
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Battery Replacement
To change the remote control batteries, do the
following:
1. Remove the battery compartment door
located on the bottom of the remote control.
2. Replace the two AA batteries in the
compartment. Make sure that they are
installed correctly, using the diagram on the
inside of the battery compartment.
3. Close the battery door securely.
If the remote control is to be stored for a long
period of time, remove the batteries and keep them
in a cool, dry place.
Problem Recommended Action
No power. The ignition might not be
turned on or in accessory.
The picture does not ll
the screen. There are
black borders on the
top and bottom or on
both sides or it looks
stretched out.Check the display mode
settings in the setup menu
by pressing the display
menu button on the
remote control.
In auxiliary mode, the
picture moves or scrolls.Check the auxiliary input
connections at both
devices.
The remote control
does not work.Check to make sure there
is no obstruction between
the remote control and
the transmitter window.
Check the batteries to
make sure they are not
dead or installed
incorrectly.
After stopping the player,
I push Play but
sometimes the DVD
starts where I left off and
sometimes at the
beginning.If the stop button was
pressed one time, the
DVD player resumes
playing where the DVD
was stopped. If the stop
button was pressed two
times the DVD player
begins to play from the
beginning of the DVD.
320

ABS can change the brake pressure faster than
any driver could. The computer is programmed to
make the most of available tire and road conditions.
This can help you steer around the obstacle while
braking hard.
As you brake, the computer keeps receiving
updates on wheel speed and controls braking
pressure accordingly.Remember: ABS does not change the time you
need to get your foot up to the brake pedal or
always decrease stopping distance. If you get
too close to the vehicle in front of you, you will not
have time to apply the brakes if that vehicle
suddenly slows or stops. Always leave enough
room up ahead to stop, even though you
have ABS.
Using ABS
Do not pump the brakes. Just hold the brake
pedal down rmly and let anti-lock work for you.
You might hear the anti-lock pump or motor
operate, and feel the brake pedal pulsate, but this
is normal.
Braking in Emergencies
With ABS, you can steer and brake at the same
time. In many emergencies, steering can help you
more than even the very best braking.
336

Check your vehicle’s mirrors, glance over your
shoulder, and start your left lane change
signal before moving out of the right lane to
pass. When you are far enough ahead of
the passed vehicle to see its front in your
vehicle’s inside mirror, activate the right lane
change signal and move back into the
right lane. Remember that an outside convex
mirror makes the vehicle you just passed
seem farther away from you than it really is.
Try not to pass more than one vehicle
at a time on two-lane roads. Reconsider before
passing the next vehicle.
Do not overtake a slowly moving vehicle too
rapidly. Even though the brake lamps are
not ashing, it might be slowing down
or starting to turn.
If you are being passed, make it easy for the
following driver to get ahead of you. Perhaps
you can ease a little to the right.
Loss of Control
Let us review what driving experts say about what
happens when the three control systems — brakes,
steering, and acceleration — do not have enough
friction where the tires meet the road to do what the
driver has asked.
In any emergency, do not give up. Keep trying to
steer and constantly seek an escape route or
area of less danger.
Skidding
In a skid, a driver can lose control of the vehicle.
Defensive drivers avoid most skids by taking
reasonable care suited to existing conditions, and
by not overdriving those conditions. But skids
are always possible.
344

Towing a Trailer
{CAUTION:
If you do not use the correct equipment
and drive properly, you can lose control
when you pull a trailer. For example, if the
trailer is too heavy, the brakes may not
work well — or even at all. You and your
passengers could be seriously injured.
You may also damage your vehicle; the
resulting repairs would not be covered by
your warranty. Pull a trailer only if you
have followed all the steps in this section.
Ask your dealer/retailer for advice and
information about towing a trailer with
your vehicle.
To identify the trailering capacity of your vehicle,
you should read the information in “Weight of
the Trailer” that appears later in this section.But trailering is different than just driving your
vehicle by itself. Trailering means changes
in handling, acceleration, braking, durability and
fuel economy. Successful, safe trailering takes
correct equipment, and it has to be used properly.
That’s the reason for this part. In it are many
time-tested, important trailering tips and safety
rules. Many of these are important for your safety
and that of your passengers. So please read
this section carefully before you pull a trailer.
Load-pulling components such as the engine,
transmission, rear axle, wheel assemblies and tires
are forced to work harder against the drag of
the added weight. The engine is required
to operate at relatively higher speeds and under
greater loads, generating extra heat. What’s more,
the trailer adds considerably to wind resistance,
increasing the pulling requirements.
371

If you are in an area of extreme cold, where the
temperature falls below−20°F (−29°C), it is
recommended that you use either an SAE 5W-30
synthetic oil or an SAE 0W-30 oil. Both provide
easier cold starting and better protection for
the engine at extremely low temperatures.
Engine Oil Additives
Do not add anything to the oil. The recommended
oils with the starburst symbol that meet
GM Standard GM6094M are all you need for
good performance and engine protection.
Engine Oil Life System
When to Change Engine Oil
Your vehicle has a computer system that lets you
know when to change the engine oil and lter.
This is based on engine revolutions and engine
temperature, and not on mileage. Based on driving
conditions, the mileage at which an oil change
will be indicated can vary considerably. For the oil
life system to work properly, you must reset the
system every time the oil is changed.When the system has calculated that oil life has
been diminished, it will indicate that an oil change
is necessary. A CHANGE ENGINE OIL SOON
message will come on. Change the oil as soon as
possible within the next 600 miles (1 000 km).
It is possible that, if you are driving under the best
conditions, the oil life system might not indicate
that an oil change is necessary for over a
year. However, the engine oil and lter must be
changed at least once a year and at this time the
system must be reset. Your dealer/retailer has
trained service people who will perform this work
using genuine parts and reset the system. It is
also important to check the oil regularly and keep
it at the proper level.
If the system is ever reset accidentally, you must
change the oil at 3,000 miles (5 000 km) since
your last oil change. Remember to reset the oil life
system whenever the oil is changed.
400

How to Reset the Engine Oil Life
System
The Engine Oil Life System calculates when to
change the engine oil and lter based on vehicle
use. Whenever the oil is changed, reset the
system so it can calculate when the next oil
change is required. If a situation occurs where
you change the oil prior to a CHANGE ENGINE
OIL SOON message being turned on, reset
the system.
If your vehicle does not have a Driver Information
Center (DIC):
1. Turn the ignition to ON, with the engine off.
2. Fully press and release the accelerator pedal
slowly three times within ve seconds.
3. Turn the key to OFF.
If the CHANGE ENGINE OIL SOON message
comes back on when you start your vehicle,
the engine oil life system has not reset.
Repeat the procedure.If your vehicle has a DIC:
1. Turn the ignition to ON, with the engine off.
2. Press the MODE button until the DIC
reads OIL LIFE LEFT/HOLD SET TO RESET.
3. Press and hold the SET button until 100% is
displayed.
You will hear three chimes and the CHANGE
ENGINE OIL SOON message will go off.
4. Turn the key to OFF.
If the CHANGE ENGINE OIL SOON message
comes back on when you start your vehicle,
the engine oil life system has not reset.
Repeat the procedure.
401

Automatic Transmission Fluid
When to Check and Change Automatic
Transmission Fluid
A good time to check the automatic transmission
uid level is when the engine oil is changed.
Change the uid at the intervals listed inAdditional
Required Services on page 504, and be sure to
use the transmission uid listed inRecommended
Fluids and Lubricants on page 511.
How to Check Automatic Transmission
Fluid
Because this operation can be a little difficult, you
may choose to have this done at the dealer/retailer
service department.
If you do it yourself, be sure to follow all the
instructions here, or you could get a false reading
on the dipstick.Notice:Too much or too little uid can
damage your transmission. Too much can
mean that some of the uid could come out
and fall on hot engine parts or exhaust system
parts, starting a re. Too little uid could
cause the transmission to overheat. Be sure to
get an accurate reading if you check your
transmission uid.
Wait at least 30 minutes before checking the
transmission uid level if you have been driving:
When outside temperatures are above
90°F (32°C).
At high speed for quite a while.
In heavy traffic — especially in hot weather.
While pulling a trailer.
To get the right reading, the uid should be at
normal operating temperature, which is 180°F to
200°F (82°C to 93°C).
Get the vehicle warmed up by driving about
15 miles (24 km) when outside temperatures are
above 50°F (10°C). If it is colder than 50°F (10°C),
you may have to drive longer.
404

Replacing Brake System Parts
The braking system on a vehicle is complex. Its
many parts have to be of top quality and work well
together if the vehicle is to have really good
braking. Your vehicle was designed and tested
with top-quality brake parts. When you replace
parts of the braking system — for example, when
the brake linings wear down and you need
new ones put in — be sure you get new approved
replacement parts. If you do not, the brakes
might not work properly. For example, if someone
puts in brake linings that are wrong for your
vehicle, the balance between the front and rear
brakes can change — for the worse. The braking
performance you have come to expect can
change in many other ways if someone puts in the
wrong replacement brake parts.
Battery
Your vehicle has a maintenance free battery.
When it is time for a new battery, get one that has
the replacement number shown on the original
battery’s label. We recommend an ACDelco
®
replacement battery. SeeEngine Compartment
Overview on page 396for battery location.Warning:Battery posts, terminals, and related
accessories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive harm.
Wash hands after handling.
Vehicle Storage
If you are not going to drive your vehicle for
25 days or more, remove the black, negative (−)
cable from the battery. This will help keep the
battery from running down.
{CAUTION:
Batteries have acid that can burn you and
gas that can explode. You can be badly
hurt if you are not careful. SeeJump
Starting on page 425for tips on working
around a battery without getting hurt.
424