service BUICK LACROSSE 2009 Owner's Guide

Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have or
might begin programs to inspect the emission control
equipment on the vehicle. Failure to pass this inspection
could prevent getting a vehicle registration.
Here are some things to know to help the vehicle pass
an inspection:
The vehicle will not pass this inspection if the check
engine light is on with the engine running, or if the
key is in ON/RUN and the light is not on.
The vehicle will not pass this inspection if the OBD
II (on-board diagnostic) system determines that
critical emission control systems have not been
completely diagnosed by the system. The vehicle
would be considered not ready for inspection. This
can happen if the battery has recently been replaced
or if the battery has run down. The diagnostic system
is designed to evaluate critical emission control
systems during normal driving. This can take several
days of routine driving. If this has been done and the
vehicle still does not pass the inspection for lack of
OBD II system readiness, your dealer/retailer can
prepare the vehicle for inspection.
Oil Pressure Light
{CAUTION:
Do not keep driving if the oil pressure is low.
The engine can become so hot that it catches re.
Someone could be burned. Check the oil as soon
as possible and have the vehicle serviced.
Notice:Lack of proper engine oil maintenance
can damage the engine. The repairs would not be
covered by the vehicle warranty. Always follow
the maintenance schedule in this manual for
changing engine oil.
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This light comes on briey while starting the engine.
If it does not, have the vehicle serviced by your
dealer/retailer. If the system is working normally
the indicator light then goes off.
If the light comes on and stays on, it means that oil is
not owing through the engine properly. The vehicle
could be low on oil and it might have some other system
problem.
Change Engine Oil Light
If this light comes on,
it means that service is
required for your vehicle.
SeeScheduled Maintenance on page 6-4andEngine
Oil on page 5-15for more information.
After having the oil changed you will need to reset the
light. SeeEngine Oil on page 5-15for more information.
If this light is blinking, a chime will sound indicating
low engine oil.
Security Light
For information regarding
this light and the vehicle’s
security system, see
Content Theft-Deterrent
on page 2-17.
Cruise Control Light
The cruise control light
comes on whenever the
cruise control is set.
The light goes out when the cruise control is turned off.
SeeCruise Control on page 3-10for more information.
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Reduced Engine Power Light
If the reduced engine
power light is on, a chime
will sound and a noticeable
reduction in the vehicle’s
performance may occur.
If the reduced engine power light is on, but there is no
reduction in performance, proceed to your destination.
The performance may be reduced the next time the
vehicle is driven. The vehicle may be driven at a reduced
speed while the reduced engine power light is on, but
acceleration and speed may be reduced.
Anytime the reduced engine power light stays on,
the vehicle should be taken to an authorized GM
dealer/retailer as soon as possible for service.
Highbeam On Light
This light comes on when
the high-beam headlamps
are in use.
SeeHeadlamp High/Low-Beam Changer on page 3-8
for more information.
Headlamps Suggested Light
This light will come
on when the use of
headlamps is suggested.
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Low Washer Fluid Warning Light
This light will come on
briey when the ignition is
on. If the light stays on, a
chime will sound indicating
your windshield washer
uid is low.
SeeWindshield Washer Fluid on page 5-35for more
information.
Door Ajar Light
When the ignition is on,
this light will stay on until
all doors are closed
and completely latched.
You will hear a chime if a door is unlatched after the
engine is started and the vehicle is not in PARK (P).
Trunk Ajar Light
This light will come on and
a chime will sound if the
trunk is ajar and the
vehicle is not in P (Park).
Try closing the trunk again. Never drive with the
trunk open.
Service Vehicle Soon Light
This light, comes on if
a condition exists that
requires the vehicle to
be taken in for service.
If the light comes on, see your dealer/retailer for service
as soon as possible.
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The outside air temperature automatically appears in
the bottom right corner of the uplevel DIC display when
viewing the trip/odometer screens, fuel screens and
some of the gages 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/retailer.
The uplevel DIC also allows some features to be
customized or personalized. SeeDIC Vehicle
Personalization on page 3-74for more information.
DIC Operation and Displays
The DIC has different modes which can be accessed by
pressing the DIC buttons located on the center of the
instrument panel. Depending on whether your vehicle
has the base level or uplevel DIC, the buttons and
modes available will differ.
The base level buttons are the trip/odometer and
English/Metric buttons.
The uplevel buttons are the trip/odometer, fuel, gages,
set/reset, and option buttons.
The button functions are detailed in the following pages.
DIC Buttons
TRIP/ODO (Trip/Odometer):For vehicles with the
base level DIC, press this button to display the odometer
and trip distance.
For vehicles with the uplevel DIC, press this button
to display the odometer, trip distance, time elapsed,
and average speed.
E/M (English/Metric)**:For vehicles with the base
level DIC, press this button to select between English
or Metric units.
For vehicles with the uplevel DIC, to select between
English or Metric units, see “Units” later in this section.
.(Fuel)*:Press this button to display the fuel
range and average fuel economy.
2(Gages)*:Press this button to display the battery
voltage, oil life, and tire pressure readings, if equipped.Uplevel shown
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Oil Life
Press the gages button until OIL LIFE displays. This
mode shows an estimate of the oil’s remaining useful
life. If you see OIL LIFE 99% on the display, that means
99% of the current oil life remains. The engine oil life
system will alert you to change your oil on a schedule
consistent with your driving conditions.
When the remaining oil life is low, the CHANGE OIL
SOON message will appear on the display. You should
change your oil as soon as possible. SeeEngine Oil
on page 5-15. In addition to the engine oil life system
monitoring the oil life, additional maintenance is
recommended in the Maintenance Schedule in this
manual. SeeScheduled Maintenance on page 6-4
for more information.
Remember, you must reset the OIL LIFE yourself after
each oil change. It will not reset itself. Also, be careful not
to reset the OIL LIFE accidentally at any time other than
when the oil has just been changed. It cannot be reset
accurately until the next oil change. To reset the engine
oil life system, seeEngine Oil Life System on page 5-18.
The display will show 100% when the system is reset.
Tire Pressure
On vehicles with the Tire Pressure Monitor System
(TPMS), press the gages button until FRONT TIRE
PRESSURE displays. This mode shows the pressure
for the front tires. To view the pressure for the rear
tires, press the gages button again until REAR TIRE
PRESSURE displays. The tire pressure will be shown in
either pounds per square inch (psi) or kilopascals (kPa).
If a low tire pressure condition is detected by the
system while driving, a message advising you to check
the pressure in a specic tire will appear in the display.
SeeInflation - Tire Pressure on page 5-61andDIC
Warnings and Messages on page 3-56for more
information.
If the tire pressure display shows dashes or blanks
instead of a value, there may be a problem with
your vehicle. If this consistently occurs, see your
dealer/retailer for service.
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BATTERY SAVER ACTIVE
This message displays when the system detects that
the battery voltage is dropping beyond a reasonable
level. The battery saver system starts reducing certain
features of the vehicle that you may be able to notice.
At the point that the features are disabled, this message
is displayed. It means that the vehicle is trying to
save the charge in the battery.
Turn off all unnecessary accessories to allow the battery
to recharge.
The normal battery voltage range is 11.5 to 15.5 volts.
If your vehicle has an uplevel DIC, you can monitor
the battery voltage by pressing the gages button until
BATTERY displays.
CHANGE OIL SOON
This message displays when service is required for
the vehicle. See your dealer/retailer. SeeEngine Oil on
page 5-15andScheduled Maintenance on page 6-4for
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 3-48andEngine Oil Life System on page 5-18.
This message displays while the ignition is in ON/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/retailer immediately.
This message displays and a chime sounds while the
ignition is in ON/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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HOOD AJAR
If your vehicle has the remote start feature, this
message displays when the hood is not closed properly.
Make sure that the hood is closed completely. SeeHood
Release on page 5-11.
This message displays while the ignition is in ON/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.
HOT TRANS (Transmission) FLUID
This message displays when the transmission uid in
your vehicle is too hot. Stop the vehicle and allow it to idle
until it cools down. If the warning message continues to
display, have the vehicle serviced by your dealer/retailer
as soon as possible.
This message displays and a chime sounds only while
the ignition is in ON/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.
KEY FOB BATTERY LOW
This message displays when the battery in the Remote
Keyless Entry (RKE) transmitter needs to be replaced.
To replace the battery, see “Battery Replacement” under
Remote Keyless Entry (RKE) System Operation on
page 2-4.
This message displays while the ignition is in ON/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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KEY IN IGNITION
This message displays and a chime sounds continuously
when the drivers door is open and the key is in
ACC/ACCESSORY or LOCK/OFF.
This message cannot be acknowledged.
This message disappears and the chiming stops when
the key is removed from the ignition.
LEFT FRONT TURN LAMP OUT
This message displays when the left front turn signal
bulb needs to be replaced.
This message displays while the ignition is in ON/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.
LEFT REAR TURN LAMP OUT
This message displays when the left rear turn signal
bulb needs to be replaced. SeeTaillamps, Turn Signal,
Sidemarker, Stoplamps and Back-up Lamps on
page 5-50.
This message displays while the ignition is in ON/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.
LOW BRAKE FLUID
This message displays when the brake uid level is low.
Have the brake system serviced by your dealer/retailer
as soon as possible. SeeBrakes on page 5-37for
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 3-35.
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This message displays and a chime sounds only while
the ignition is in ON/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.
LOW FUEL
This message displays when your vehicle is low on fuel.
Rell the fuel tank as soon as possible. SeeFuel Gage
on page 3-46andFilling the Tank on page 5-8for more
information.
The message displays and a chime sounds while the
ignition is in ON/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. SeeEngine Oil
on page 5-15for 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. SeeOil Pressure Light
on page 3-42.
Stop the vehicle immediately, as engine damage can
result from driving a vehicle with low oil pressure.
Have the vehicle serviced by your dealer/retailer as
soon as possible when this message is displayed.
This message displays only when the ignition is
in ON/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.
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