2010 BUICK LACROSSE engine

Keys, Doors and Windows 1-13
Vehicle Security
Vehicle theft is big business,
especially in some cities. This
vehicle has theft-deterrent features,
however, they do not make it
impossible to steal.
Anti-Theft Alarm System
This vehicle has an anti-theft alarm
system.
Arming the System
To arm the system, pressQon the
RKE transmitter.
The alarm automatically arms after
about 30 seconds. The security
light, located on the instrument
panel, flashes.
Press
Von the RKE transmitter to
open the trunk without setting off the
alarm. The system rearms when the
trunk is closed.
Disarming the System
To disarm the system, do one of the
following:
.PressKon the RKE transmitter.
.Approach the vehicle with the
RKE transmitter (Keyless
Access).
.Start the engine.
The alarm automatically disarms.
How to Detect a Tamper
Condition
IfKis pressed and the horn
sounds, an attempted break-in has
occurred while the system was
armed.
If the alarm has been activated, the
Theft Attempted message will
appear on the DIC. See Key and
Lock Messages
on page 4‑36for
additional information.
Immobilizer
See Radio Frequency Statement
(US, Can)on page 12‑16for
information regarding Part 15 of
the Federal Communications
Commission (FCC) Rules and
RSS-210/211 of Industry and
Science Canada.
Immobilizer Operation
(Key Access)
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.
The vehicle is automatically
immobilized when the key is
removed from the ignition.
The system is automatically
disarmed when the vehicle is
started with the correct key. The key
uses a transponder that matches an
immobilizer control unit in the
vehicle and automatically disarms

1-14 Keys, Doors and Windows
the system. Only the correct key
starts the vehicle. The vehicle may
not start if the key is damaged.
The security light, located in the
instrument panel cluster, comes on
if there is a problem with arming or
disarming the theft-deterrent
system.
When trying to start the vehicle, the
security light comes on briefly when
the ignition is turned on.
If the engine does not start and the
security light stays on there is a
problem with the system. Turn the
ignition off and try again.
If the engine still does not start, and
the key appears to be undamaged
or the light continues to stay on, try
another ignition key.If the engine still does not start with
the other key, the vehicle needs
service. If the vehicle does start, the
first key may be damaged. See your
dealer/retailer who can service the
theft-deterrent system and have a
new key made.
Do not leave the key or device that
disarms or deactivates the theft
deterrent system in the vehicle.
Immobilizer Operation
(Keyless Access)
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.
The vehicle is automatically
immobilized when the transmitter
leaves the vehicle.
The immobilization system is
disarmed when the ignition button is
pushed in and a valid transmitter is
found in the vehicle.
The security light, located in the
instrument panel cluster, comes on
if there is a problem with arming or
disarming the theft-deterrent
system.
The system has one or more
transmitters that are matched to an
immobilizer control unit in your
vehicle. Only a correctly matched
transmitter will start the vehicle.
If the transmitter is ever damaged,
you may not be able to start your
vehicle.
When trying to start the vehicle, the
security light comes on briefly when
the ignition is turned on.
If the engine does not start and the
security light stays on there is a
problem with the system. Turn the
ignition off and try again.

Keys, Doors and Windows 1-15
If the keyless access transmitter
appears to be undamaged, try
another keyless access transmitter.
Or, you may try placing the
transmitter in the transmitter pocket
located in the center console. See
“No Remote Detected”underKey
and Lock Messages on page 4‑36.
If the engine does not start with the
other transmitter or when the
transmitter is on the pocket in the
center console, your vehicle needs
service. See your dealer/retailer
who can service the theft-deterrent
system and have a new transmitter
programmed to the vehicle.
Do not leave the key or device that
disarms or deactivates the theft
deterrent system in the vehicle.Exterior Mirrors
Power Mirrors
To adjust the mirrors:
1. Turn the control knob to the L (left) or R (right) selecting the
driver or passenger mirror.
2. Push the control knob to the left, right, up, or down to adjust the
mirror. Vehicles with the memory feature
can store a preferred mirror position.
See
“Memory Seats” underPower
Seat Adjustment
on page 2‑4for
more information.
Folding Mirrors
Manual Foldaway Mirrors
Vehicles with manual folded mirrors
are folded inward to prevent
damage when going through an
automatic car wash. To fold, pull the
mirror toward the vehicle. Push the
mirror outward, to return it to the
original position.
Automatic Dimming Feature
The driver outside mirror
automatically adjusts for the glare of
the headlamps behind you.

Keys, Doors and Windows 1-19
Sun Visors
Pull the sun visor toward you or
move it to the side to reduce glare.
Rear Window Sunshade
On vehicles with this feature the
switch
Qis located on the center
console, to the right of the shifter.
The engine must be running to
operate it.
Press the switch
Qto raise or
lower the sunshade.
If the shade is up, and the vehicle is
shifted into R (Reverse) it will
automatically lower. When the
vehicle is shifted out of R (Reverse)
it does not automatically raise itself.
To raise the sunshade, press the
front of the switch.
Roof
Sunroof
On vehicles with a sunroof, the
switch is located on the overhead
console.
The sunroof only operates when the
ignition is in ON/RUN, ACC/
ACCESSORY, or if Retained
Accessory Power (RAP) is active.
See Retained Accessory Power
(RAP) on page 8‑20.
Vent
The sunroof has an express-vent
open feature. From the closed
position, press the rear of the
sunroof switch (A) to vent the
sunroof. To stop the sunroof
partway, press the switch a second
time. To close the sunroof, press
and hold the front of the sunroof
switch (B). To stop the sunroof
partway, release the switch.
Express-Open/Express-Close
To express-open the sunroof from
the closed or vent position, fully
press and release the rear of the
switch (A). The sunroof opens
automatically. To stop the sunroof
partway, press the switch a second
time. To express-close the sunroof,
fully press and release the front of
the switch (B). The sunroof closes
automatically. To stop the sunroof
partway, press the switch a
second time.

Seats and Restraints 2-31
The parts of the airbag that come
into contact with you may be warm,
but not too hot to touch. There may
be some smoke and dust coming
from the vents in the deflated
airbags. Airbag inflation does not
prevent the driver from seeing out of
the windshield or being able to steer
the vehicle, nor does it prevent
people from leaving the vehicle.
{WARNING
When an airbag inflates, there
may be dust in the air. This dust
could cause breathing problems
for people with a history of
asthma or other breathing trouble.
To avoid this, everyone in the
vehicle should get out as soon as
it is safe to do so. If you have(Continued)
WARNING (Continued)
breathing problems but cannot
get out of the vehicle after an
airbag inflates, then get fresh air
by opening a window or a door.
If you experience breathing
problems following an airbag
deployment, you should seek
medical attention.
The vehicle has a feature that may
automatically unlock the doors, turn
on the interior lamps and hazard
warning flashers, and shut off the
fuel system after the airbags inflate.
You can lock the doors, turn off the
interior lamps and hazard warning
flashers by using the controls for
those features.
{WARNING
A crash severe enough to inflate
the airbags may have also
damaged important functions in
the vehicle, such as the fuel
system, brake and steering
systems, etc. Even if the vehicle
appears to be drivable after a
moderate crash, there may be
concealed damage that could
make it difficult to safely operate
the vehicle.
Use caution if you should attempt
to restart the engine after a cash
has occurred.

Instruments and Controls 4-1
Instruments and
Controls
Instrument Panel Overview
Instrument Panel Overview . . . . 4-4
Controls
Steering Wheel Adjustment . . . 4-6
Steering Wheel Controls . . . . . . 4-6
Heated Steering Wheel . . . . . . . 4-7
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Windshield Wiper/Washer . . . . . 4-7
Compass . . . . . . . . . . . . . . . . . . . . . 4-8
Clock (Without DateDisplay) . . . . . . . . . . . . . . . . . . . . . 4-9
Clock (With Date Display) . . . . . 4-9
Power Outlets . . . . . . . . . . . . . . . 4-10
Warning Lights, Gages, and
Indicators
Warning Lights, Gages, and Indicators . . . . . . . . . . . . . . 4-12
Instrument Cluster . . . . . . . . . . . 4-13
Speedometer . . . . . . . . . . . . . . . . 4-14
Odometer . . . . . . . . . . . . . . . . . . . . 4-14
Tachometer . . . . . . . . . . . . . . . . . . 4-14
Fuel Gage . . . . . . . . . . . . . . . . . . . 4-14
Engine Coolant Temperature Gage . . . . . . . . . 4-15
Safety Belt Reminders . . . . . . . 4-15
Airbag Readiness Light . . . . . . 4-16
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . 4-16
Charging System Light . . . . . . 4-17
Malfunction Indicator Lamp . . . . . . . . . . . . . 4-17
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . 4-20 Electric Parking Brake
Light . . . . . . . . . . . . . . . . . . . . . . . 4-20
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . 4-21
Traction Off Light . . . . . . . . . . . . 4-22
Electronic Stability Control
(ESC) Indicator Light . . . . . . . 4-22
Electronic Stability Control (ESC)/Traction Control
System (TCS) Indicator/
Warning Light . . . . . . . . . . . . . . 4-22
Tire Pressure Light . . . . . . . . . . 4-23
Engine Oil Pressure Light . . . . 4-23
Low Fuel Warning Light . . . . . . 4-24
Security Light . . . . . . . . . . . . . . . . 4-24
High-Beam on Light . . . . . . . . . 4-24
Fog Lamp Light . . . . . . . . . . . . . . 4-24
Taillamp Indicator Light . . . . . . 4-25
Cruise Control Light . . . . . . . . . 4-25

4-2 Instruments and Controls
Information Displays
Driver InformationCenter (DIC) . . . . . . . . . . . . . . . 4-25
Head-Up Display (HUD) . . . . . 4-28
Vehicle Messages
Vehicle Messages . . . . . . . . . . . 4-32
Battery Voltage and Charging Messages . . . . . . . . 4-33
Brake System Messages . . . . 4-33
Compass Messages . . . . . . . . . 4-33
Cruise Control Messages . . . . 4-34
Door Ajar Messages . . . . . . . . . 4-34
Engine Cooling System Messages . . . . . . . . . . . . . . . . . . 4-34
Engine Oil Messages . . . . . . . . 4-35
Engine Power Messages . . . . 4-35
Fuel System Messages . . . . . . 4-36
Key and Lock Messages . . . . . 4-36
Lamp Messages . . . . . . . . . . . . . 4-36 Ride Control System
Messages . . . . . . . . . . . . . . . . . . 4-36
Anti-Theft Alarm System Messages . . . . . . . . . . . . . . . . . . 4-37
Tire Messages . . . . . . . . . . . . . . . 4-37
Transmission Messages . . . . . 4-37
Window Messages . . . . . . . . . . . 4-38
Vehicle Personalization
Vehicle Personalization . . . . . . 4-38
OnStar System®
OnStar®System . . . . . . . . . . . . . 4-43
Universal Remote System
Universal Remote
System . . . . . . . . . . . . . . . . . . . . . 4-45
Universal Remote System Programming . . . . . . . . . . . . . . . 4-45
Universal Remote System Operation . . . . . . . . . . . . . . . . . . 4-48

4-12 Instruments and Controls
Warning Lights,
Gages, and Indicators
Warning lights come on when there
could be a problem with a vehicle
function. Some warning lights come
on briefly when the engine is started
to indicate they are working.
Gages can indicate when there
could be a problem with a vehicle
function. Often gages and warning
lights work together to indicate a
problem with the vehicle.
When one of the warning lights
comes on and stays on while
driving, or when one of the gages
shows there may be a problem,
check the section that explains what
to do. Follow this manual's advice.
Waiting to do repairs can be costly
and even dangerous.