2010 BUICK LACROSSE Owner's Manual

Keys, Doors and Windows 1-3
vehicle. If the vehicle has the
keyless ignition, the key can be
used for the locks.
Press the button on the RKE
transmitter to extend the key. Press
the button and the key blade to
retract the key.
See your dealer/retailer if a new key
is needed.
Notice:If you ever lock your keys
in the vehicle, you may have to
damage the vehicle to get in.
Be sure you have spare keys. If you are locked out of the vehicle,
see
Roadside Assistance Program
(US, Can)
on page 12‑6or
OnStar®Systemon page 4‑43.
Remote Keyless Entry
(RKE) System
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.
Changes or modifications to this
system by other than an authorized
service facility could void
authorization to use this equipment.
If there is a decrease in the RKE
operating range:
.Check the distance. The
transmitter may be too far from
the vehicle.
.Check the location. Other
vehicles or objects may be
blocking the signal.
.Check the transmitter's battery.
See “Battery Replacement” later
in this section.
.If the transmitter is still not
working correctly, see your
dealer/retailer or a qualified
technician for service.
Remote Keyless Entry
(RKE) System Operation
(Key Access)
The transmitter functions will work
up to 20 m (65 feet) away from the
vehicle. On vehicles with remote
start the distance will be greater.
Keep in mind that other conditions,
such as those previously stated, can
impact the performance of the
transmitter.

1-4 Keys, Doors and Windows
RKE without Remote Start Shown
The following may be available:
Q(Lock): Press to lock all doors.
The turn signal indicators may flash
and/or the horn may sound to
indicate locking, see “Locking
Feedback” underVehicle
Personalization
on page 4‑38.
If the driver door is open when
Qis
pressed, all doors lock except the
driver door, if enabled through the
vehicle personalization. If the passenger door is open when
Qis pressed, all doors lock.
Pressing
Qmay also arm the
theft-deterrent system. See
Anti-Theft Alarm System
on
page 1‑13.
K(Unlock): Press to unlock the
driver door or all doors, see “Door
Unlock Options” underVehicle
Personalization
on page 4‑38.
The turn signal indicators may flash
and/or the horn may sound to
indicate unlocking, see “Unlock
Feedback” underVehicle
Personalization
on page 4‑38.
Pressing
Kwill disarm the
theft-deterrent system. See
Anti-Theft Alarm System
on
page 1‑13. V
(Remote Trunk Release):
Press and hold to unlock the trunk.
7(Vehicle Locator/Panic
Alarm): Press and release one
time to locate the vehicle. The
exterior lamps flash and the horn
chirps.
Press and hold
7for at least
two seconds to sound the panic
alarm. The horn sounds and the
turn signals flash until
7is pressed
again or the vehicle is started.
/(Remote Vehicle Start): For
vehicles with this feature, press
Q
and then press and hold/within
five seconds to start the engine from
outside the vehicle using the RKE
transmitter. See Remote Vehicle
Start
on page 1‑8for additional
information.

Keys, Doors and Windows 1-5
Programming Transmitters to
the Vehicle
Only RKE transmitters programmed
to this vehicle will work. If a
transmitter is lost or stolen, a
replacement can be purchased and
programmed through your dealer/
retailer. When the replacement
transmitter is programmed to this
vehicle, all remaining transmitters
must also be reprogrammed. Any
lost or stolen transmitters will no
longer work once the new
transmitter is programmed.
Battery Replacement
Replace the battery if the Replace
Battery in Remote Key message
displays in the DIC. See“Replace
Battery in Remote Key” underKey
and Lock Messages on page 4‑36.
The battery is not rechargeable.
See your dealer/retailer to replace
the battery.
Remote Keyless Entry
(RKE) System Operation
(Keyless Access)
The Keyless Access System lets
you lock and unlock the doors and
access the trunk without removing
the remote transmitter from your
pocket, purse, briefcase, etc. The
keyless access transmitter should
be within 1 m (3 feet) of the door or
trunk being opened.
Keyless Unlocking
With the keyless access transmitter
within 1 m (3 feet), approach the
front door and pull the handle to
unlock and open the door. If the
transmitter is recognized, the door
will unlock and open.
Entering any door other than the
driver door will always cause all of
the doors to unlock. This is not
customizable. To customize which doors unlock
when the driver's door is opened,
see
“Door Unlock Options” under
Vehicle Personalization
on
page 4‑38.
Lock Sensor
When all doors are closed and the
ignition is off, the vehicle can be
locked by pressing this area on the
door handle. This feature will be
available for several minutes after
the vehicle has been turned off.

1-6 Keys, Doors and Windows
Keyless Trunk Opening
Lift up on the touch pad located
above the license plate to open the
trunk if the keyless access
transmitter is within range.
Transmitter Buttons
See the information on how the
transmitter buttons function earlier
in this section under“Remote
Keyless Transmitter Operation
(Key Access)”.
Programming Transmitters to
the Vehicle
Only keyless access transmitters
programmed to the vehicle will work.
If a transmitter is lost or stolen, a
replacement can be purchased and
programmed through your dealer/
retailer. The vehicle can be
reprogrammed so that lost or stolen
transmitters no longer work. Any
remaining transmitters will need to
be reprogrammed. Each vehicle can
have up to five transmitters matched
to it. Programming with a Recognized
Transmitter
A new transmitter can be
programmed to the vehicle when
there is one recognized transmitter.
To program, the vehicle must be off
and all of the transmitters, both
currently recognized and new, must
be with you.
1. Place the recognized
transmitter(s) in the cupholder.
2. Insert the vehicle key of the new transmitter into the key lock
cylinder located on the outside
of the driver door and turn the
key to the unlock position five
times within ten seconds.
The Driver Information Center
(DIC) displays Ready For
Remote #2, 3, 4 or 5.
3. Place the new transmitter into the transmitter pocket. The
transmitter pocket is located
inside the center console
storage area under the cupholder. The cupholder will
need to be pulled out to access
the transmitter pocket.
4. Press the ignition. When the transmitter is learned the DIC
will display will show that it is
ready to program the next
transmitter.
5. Remove the transmitter from the transmitter pocket and press the
unlock button.
To program additional
transmitters, repeat Steps 3
through 5.
When all additional transmitters
are programmed, press and hold
the ignition for 5 seconds to exit
programming mode.
Programming without a
Recognized Transmitter
If there are no currently recognized
transmitters available, follow this
procedure to program up to
five transmitters. This procedure will
take approximately 30 minutes to

Keys, Doors and Windows 1-7
complete. The vehicle must be off
and all of the transmitters you wish
to program must be with you.
1. Insert the vehicle key of thetransmitter into the key lock
cylinder located on the outside
of the driver door and turn the
key to the unlock position
five times within ten seconds.
The Driver Information Center
(DIC) displays Remote Learn
Pending, Please Wait.
2. Wait for ten minutes until the DIC displays Press Engine Start
Button To Learn and then press
the ignition.
The DIC displays will again
show Remote Learn Pending,
Please Wait.
3. Repeat Step 2 two additional times. After the third time all
previously known transmitters
will no longer work with the
vehicle. Remaining transmitters
can be relearned during the next
steps. The DIC display should now
show Ready For Remote # 1.
4. Place the new transmitter into the transmitter pocket. The
transmitter pocket is located
inside the center console
storage area under the
cupholder. The cupholder will
need to be pulled out to access
the transmitter pocket.
5. Press the ignition. When the transmitter is learned the DIC
will display will show that it is
ready to program the next
transmitter.
6. Remove the transmitter from the transmitter pocket and press the
unlock button.
To program additional
transmitters, repeat Steps 4
through 6.
When all additional transmitters
are programmed, press and hold
the ignition for 5 seconds to exit
programming mode.Starting the Vehicle with a Low
Transmitter Battery
If the transmitter battery is weak, the
DIC may display No Remote
Detected when you try to start the
vehicle. The Replace Battery in
Remote Key message may also be
displayed at this time.
To start the vehicle:
1. Remove the cupholder from the
center console storage area.
2. Place the transmitter in the transmitter pocket with the
buttons facing up.

1-8 Keys, Doors and Windows
3. With the vehicle in P (Park) orN (Neutral), press the brake
pedal and the ignition control.
See Starting the Engine
on
page 8‑20, for additional
information about the vehicle's
keyless ignition with push start.
Replace the transmitter battery
as soon as possible.
Battery Replacement
Replace the battery if the Replace
Battery in Remote Key message
displays in the DIC. See “Replace
Battery in Remote Key” underKey
and Lock Messages on page 4‑36.
The battery is not rechargeable.
See your dealer/retailer to replace
the battery.
Remote Vehicle Start
If available, this feature allows the
engine to be started from outside
the vehicle. This button
/will be on the
RKE transmitter if the vehicle has
remote start.
To enable and disable remote start,
see “Remote Vehicle Start” under
Vehicle Personalization
on
page 4‑38.
Laws in some local communities
may restrict the use of remote
starters. For example, some laws
may require a person using remote
start to have the vehicle in view.
Check local regulations for any
requirements.
Starting the Engine Using Remote
Start
To start the engine using the remote
start feature:
1. Press
Qon the RKE transmitter.
The vehicle's doors will be
locked.
2. Within five seconds, press and hold
/until the turn signal
lamps flash. This confirms the
request to remote start the vehicle has been received.
Once the vehicle is started, the
parking lamps will turn on and
remain on as long as the engine
is running.
3. Turn the ignition to ON/RUN (Key Access), or select the
ON/RUN/START ignition position
(Keyless Access), to drive the
vehicle.
The engine will shut off after
10 minutes unless a time
extension is done or the ignition
is put in ON/RUN (Key Access)
or ON/RUN/START (Keyless
Access).
Vehicles with an automatic climate
control system will default to a
heating or cooling mode depending
on the outside temperature during a
remote start. When the key is turned
to ON/RUN (Key Access), or the
ON/RUN/START ignition position is
selected (Keyless Access), the
climate control system will turn on at
the setting the vehicle was set to
when the vehicle was last turned off.

Keys, Doors and Windows 1-9
Vehicles with heated or heated and
ventilated front seats can have this
feature turn on automatically during
a remote start see“Remote Start
Heated Seats” and“Remote Start
Vented Seats” underVehicle
Personalization
on page 4‑38for
more information.
Extending Engine Run Time
For a 10 minute extension, repeat
Steps 1 and 2 while the engine is
still running. The remote start can
only be extended once.
When the remote start is extended,
the second 10 minutes will start
immediately.
For example, if the vehicle has
been running for five minutes, and
10 minutes are added, the engine
will run for a total of 15 minutes. A maximum of two remote starts or
remote start attempts are allowed
between ignition cycles.
The vehicle's ignition must be
turned on and then back off before
the remote start procedure can be
used again.
Shutting the Engine Off After a
Remote Start
To shut off the engine:
.Press/until the parking lamps
turn off.
.Turn on the hazard warning
flashers.
.Turn the ignition on and then
back off. Conditions in Which Remote Start
Will Not Work
The remote start will not operate if:
.The key is in the ignition
(Key Access) or the ignition is
in any position other than
OFF (Keyless Access).
.The transmitter is in the vehicle
(Keyless Access).
.The hood is not closed.
.The hazard warning flashers
are on.
.There is an emission control
system malfunction.
.The engine coolant temperature
is too high.
.The oil pressure is low.
.Two remote vehicle starts have
already been used.
.The vehicle is not in P (Park).

1-10 Keys, Doors and Windows
Door Locks
{WARNING
Unlocked doors can be
dangerous.
.Passengers, especially
children, can easily open the
doors and fall out of a moving
vehicle. The chance of being
thrown out of the vehicle in a
crash is increased if the
doors are not locked. So, all
passengers should wear
safety belts properly and the
doors should be locked
whenever the vehicle is
driven.
.Young children who get into
unlocked vehicles may be
unable to get out. A child can
be overcome by extreme heat
and can suffer permanent
injuries or even death from
heat stroke. Always lock the
vehicle whenever leaving it.(Continued)
WARNING (Continued)
.Outsiders can easily enter
through an unlocked door
when you slow down or stop
your vehicle. Locking your
doors can help prevent this
from happening.
To lock and unlock the door, use the
Remote Keyless Entry (RKE)
transmitter or the key from the
outside and the door lock knob or
switch from the inside.
From inside the vehicle with the
doors locked, pull once on the door
handle to unlock it, and a second
time to open it.
Manually locking the driver door will
also automatically lock all other
doors.
If the driver door is open or the key
is in the ignition, the driver door may
unlock. See Vehicle Personalization
on page 4‑38for more information. See
Remote Keyless Entry (RKE)
System Operation (Key Access)
on
page 1‑3or Remote Keyless Entry
(RKE) System Operation (Keyless
Access)
on page 1‑5and Power
Door Lockson page 1‑10for more
information.
Power Door Locks
The power door lock switches are
located on the center of the
instrument panel.
K(Unlock): Press to unlock
the doors.
Q(Lock): Press to lock the doors.
See Vehicle Personalization
on
page 4‑38for more information.