service BUICK TERRAZA 2007 Owner's Guide

If the light comes on while you are driving, pull off
the road and stop carefully. You may notice that the
pedal is harder to push. Or, the pedal may go closer
to the oor. It may take longer to stop. If the light is
still on, have the vehicle towed for service. See
Anti-Lock Brake System Warning Light on page 215
andTowing Your Vehicle on page 384.
{CAUTION:
Your brake system may not be working
properly if the brake system warning light
is on. Driving with the brake system
warning light on can lead to an accident.
If the light is still on after you have pulled
off the road and stopped carefully, have
the vehicle towed for service.
Anti-Lock Brake System Warning
Light
Your vehicle has
an Anti-lock Brake
System (ABS)
warning light.
This light should come on for a few seconds
when you turn the ignition key to RUN. If the light
does not come on then, have it xed so it will
be ready to warn you if there is a problem.
If this light stays on longer than normal after you
have started your engine, turn the ignition off.
If the light comes on and stays on when you are
driving, stop as soon as possible and turn the
ignition off. Then start the engine again to reset the
system. If the light still stays on, or comes on
again while you are driving, the ABS needs service
and you do not have anti-lock brakes.
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Traction Control System (TCS)
Warning Light
Your vehicle may have
a traction control system
warning light.
The traction control system warning light may
come on for the following reasons:
If you turn the system off by pressing the
traction control button. To turn the system
back on, press the button again. The warning
light should go off. SeeTraction Control
System (TCS) on page 353for more
information.
If there is a brake system problem that is
specically related to traction control, the
traction control system will turn off and
the warning light will come on. If your brakes
begin to overheat, the traction control
system will turn off and the warning light will
come on until your brakes cool down.
If the traction control system is affected by an
engine-related problem, the system will turn
off and the warning light will come on.
If the traction control system warning light comes
on and stays on for an extended period of
time when the system is turned on, your vehicle
needs service.
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Engine Coolant Temperature Gage
This gage shows the engine coolant temperature.
If the red gage lamp turns on, your engine is
too hot!
It means that your engine coolant has overheated.
If you have been operating your vehicle under
normal driving conditions, you should pull off the
road, stop your vehicle and turn off the engine
as soon as possible.
SeeEngine Overheating on page 423.
Malfunction Indicator Lamp
Check Engine Light
Your vehicle has a
computer which
monitors operation
of the fuel, ignition,
and emission
control systems.
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended
to assure that emissions are at acceptable levels for
the life of the vehicle, helping to produce a cleaner
environment. The check engine light comes on to
indicate that there is a problem and service is
required. Malfunctions often will be indicated by
the system before any problem is apparent.
United StatesCanada
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This may prevent more serious damage to your
vehicle. This system is also designed to assist your
service technician in correctly diagnosing any
malfunction.
Notice:If you keep driving your vehicle with
this light on, after awhile, your emission
controls may not work as well, your fuel
economy may not be as good, and your engine
may not run as smoothly. This could lead to
costly repairs that may not be covered by
your warranty.
Notice:Modications made to the engine,
transaxle, exhaust, intake, or fuel system
of your vehicle or the replacement of the
original tires with other than those of the same
Tire Performance Criteria (TPC) can affect
your vehicle’s emission controls and may
cause this light to come on. Modications to
these systems could lead to costly repairs not
covered by your warranty. This may also
result in a failure to pass a required Emission
Inspection/Maintenance test. SeeAccessories
and Modifications on page 400.This light should come on, as a check to show
you it is working, when the ignition is on and the
engine is not running. If the light does not
come on, have it repaired. This light will also
come on during a malfunction in one of two ways:
Light Flashing— A misre condition has
been detected. A misre increases vehicle
emissions and may damage the emission
control system on your vehicle. Diagnosis and
service may be required.
Light On Steady— An emission control
system malfunction has been detected on your
vehicle. Diagnosis and service may be
required.
If the Light is Flashing
The following may prevent more serious damage
to your vehicle:
Reducing vehicle speed
Avoiding hard accelerations
Avoiding steep uphill grades
If you are towing a trailer, reduce the amount of
cargo being hauled as soon as it is possible
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If the light stops ashing and remains on steady,
see “If the Light Is On Steady” following.
If the light continues to ash, when it is safe to do
so, stop the vehicle. Find a safe place to park
your vehicle. Turn the key off, wait at least
10 seconds and restart the engine. If the light
remains on steady, see “If the Light Is On Steady”
following. If the light is still ashing, follow the
previous steps, and see your dealer for service
as soon as possible.
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully
install the cap. SeeFilling the Tank on page 405.
The diagnostic system can determine if the
fuel cap has been left off or improperly installed.
A loose or missing fuel cap will allow fuel to
evaporate into the atmosphere. A few driving trips
with the cap properly installed should turn the
light off.Did you just drive through a deep puddle of water?
If so, your electrical system may be wet. The
condition will usually be corrected when the
electrical system dries out. A few driving trips
should turn the light off.
Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel.
SeeGasoline Octane on page 402. Poor fuel
quality will cause your engine not to run as
efficiently as designed. You may notice this as
stalling after start-up, stalling when you put
the vehicle into gear, misring, hesitation on
acceleration, or stumbling on acceleration. (These
conditions may go away once the engine is
warmed up.) This will be detected by the system
and cause the light to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at
least one full tank of the proper fuel to turn the
light off.
If none of the above steps have made the light
turn off, your dealer can check the vehicle.
Your dealer has the proper test equipment and
diagnostic tools to x any mechanical or electrical
problems that may have developed.
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{CAUTION:
Do not keep driving if the oil pressure is
low. If you do, your engine can become
so hot that it catches re. You or others
could be burned. Check your oil as
soon as possible and have your vehicle
serviced.
Notice:Lack of proper engine oil maintenance
may damage the engine. The repairs would
not be covered by your warranty. Always follow
the maintenance schedule in this manual for
changing engine oil.
Security Light
For information
regarding this light,
seeTheft-Deterrent
Systems on page 123.
Cruise Control Light
This light comes on
whenever you set
your cruise control.
The light will go out when the cruise control is
turned off. SeeCruise Control on page 177
for more information.
Highbeam On Light
This light will come on
when the high-beam
headlamps or the
Flash-to-Pass feature
is in use.
SeeHeadlamp High/Low-Beam Changer on
page 174.
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Driver Information Center (DIC)
Your vehicle has a Driver Information Center (DIC).
All messages will appear in the DIC display
located in the instrument panel cluster, below the
tachometer. The DIC buttons are located on
the center of the instrument panel, below the
center outlets.
The DIC comes on when the ignition is on. After
a short delay, the DIC will display WELCOME
DRIVER (1 or 2) if a personalized key 1 or 2
is used, and then the information that was last
displayed before the engine was turned off.
The driver number also corresponds to the
numbers, 1 or 2, on the back of the remote
keyless entry transmitters.
The DIC displays the odometer, trip odometers,
fuel economy, trip computer, vehicle system
information, and compass display, if equipped.
It also displays warning messages if a system
problem is detected. In addition, the DIC displays
phone numbers that are called using the
OnStar
®system, if equipped. SeeOnStar®
System on page 145.If equipped, the outside air temperature
automatically appears in the bottom right corner of
the DIC display when viewing all of the information
screens, except for the oil life screens. If the
outside air temperature is at or below 37°F (3°C),
the temperature reading will toggle between
displaying the outside temperature and the word
ICE for two minutes. If there is a problem with the
system that controls the temperature display,
the letters OC (open circuit) or SC (short circuit)
will appear on the display. If this occurs, have the
vehicle serviced by your dealer.
The DIC also allows some features to be
customized or personalized, if equipped. See
DIC Vehicle Personalization (Uplevel Only)
on page 249for more information.
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CHANGE OIL SOON
This message displays when service is required
for the vehicle. See your dealer. SeeEngine Oil
on page 411andScheduled Maintenance on
page 509for more information.
The CHANGE OIL SOON message is reset by
acknowledging the message. The OIL LIFE screen
under the gages menu on the DIC must also be
reset. See “Oil Life” underDIC Operation and
Displays on page 224andEngine Oil Life System
on page 414.
This message displays while the ignition is in RUN.
Press any of the DIC buttons to acknowledge this
message and to clear it from the screen.
This message continues to display for two seconds
if it has not been acknowledged when the engine
is turned off. It also re-displays for two seconds if
the message has been acknowledged, but the
condition still exists when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
CHARGING SYSTEM FAILURE
This message displays when there is a problem
with the generator and battery charging systems.
Driving with this problem could drain the battery.
Turn off all unnecessary accessories. Stop
and turn off the vehicle as soon as it is safe to do
so. Have the electrical system checked by your
dealer immediately.
This message displays and a chime sounds while
the ignition is in RUN. Press any of the DIC
buttons to acknowledge this message and to clear
it from the screen.
This message continues to display for two seconds
if it has not been acknowledged when the engine
is turned off. It also re-displays for two seconds if
the message has been acknowledged, but the
condition still exists when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
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This message continues to display for two seconds
if it has not been acknowledged when the engine
is turned off. It also re-displays for two seconds if
the message has been acknowledged, but the
condition still exists when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
LIFT GATE AJAR
This message displays when the liftgate is not
closed completely. Make sure that the liftgate is
closed completely. SeeLiftgate on page 119.
This message displays while the ignition is in RUN.
A chime sounds when the ignition is shifted out
of PARK (P). Press any of the DIC buttons
to acknowledge this message and to clear it from
the screen.
This message continues to display for two seconds
if it has not been acknowledged when the engine
is turned off. It also re-displays for two seconds if
the message has been acknowledged, but the
condition still exists when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
LOW BRAKE FLUID
This message displays when the brake uid
level is low. Have the brake system serviced by
your dealer as soon as possible. SeeBrakes
on page 434for proper uid level.
The brake system warning light also appears on
the instrument panel cluster when this message
appears on the DIC. SeeBrake System Warning
Light on page 214.
This message displays and a chime sounds only
while the ignition is in RUN. Press any of the
DIC buttons to acknowledge this message and to
clear it from the screen.
This message continues to display for two seconds
if it has not been acknowledged when the engine
is turned off. It also re-displays for two seconds if
the message has been acknowledged, but the
condition still exists when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
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LOW FUEL
This message displays when your vehicle is low
on fuel. Rell the fuel tank as soon as possible.
SeeFuel Gage on page 222andFilling the Tank
on page 405for more information.
The message displays and a chime sounds
while the ignition is in RUN. Press any of the
DIC buttons to acknowledge this message and
to clear it from the screen.
If the condition still exists, the message re-appears
when the engine is turned on.
LOW OIL PRESSURE
Notice:If the LOW OIL PRESSURE warning
message appears on the DIC display, stop the
vehicle immediately. Do not drive the vehicle
until the cause of the low oil pressure is
corrected. Severe engine damage can result
from driving a vehicle with low oil pressure. See
Engine Oil on page 411for more information.
This message displays when the vehicle’s engine
oil pressure is low. The oil pressure light also
appears on the instrument panel cluster. See
Oil Pressure Light on page 220.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.
This message displays only when the ignition is in
RUN. A chime sounds continuously when this
message is displayed.
This message cannot be acknowledged and
cleared from the screen. This message re-displays
for a few seconds if the condition still exists
when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
PARKING BRAKE ON
This message displays to alert the driver when
the vehicle’s parking brake is on, the ignition is
in RUN, and the vehicle speed is greater
than 5 mph (8 km/h). Release the parking brake
before driving. SeeParking Brake on page 137
for more information.
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