2007 BUICK LACROSSE key battery

Remote Keyless Entry (RKE)
System
Your Remote Keyless Entry (RKE) system
operates on a radio frequency subject to Federal
Communications Commission (FCC) Rules
and with Industry Canada.
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following
two conditions:
1. This device may not cause interference.
2. This device must accept any interference
received, including interference that may
cause undesired operation of the device.
This device complies with RSS-210 of Industry
Canada. Operation is subject to the following
two conditions:
1. This device may not cause interference.
2. This device must accept any interference
received, including interference that may
cause undesired operation of the device.Changes or modications to this system by other
than an authorized service facility could void
authorization to use this equipment.
At times you may notice a decrease in operating
range. This is normal for any RKE system. If
the transmitter does not work or if you have to
stand closer to your vehicle for the transmitter to
work, try this:
Check the distance. You may be too far from
your vehicle. You may need to stand closer
during rainy or snowy weather.
Check the location. Other vehicles or objects
may be blocking the signal. Take a few steps
to the left or right, hold the transmitter
higher, and try again.
Check to determine if battery replacement is
necessary. See “Battery Replacement”
underRemote Keyless Entry (RKE) System
Operation on page 90.
If you are still having trouble, see your dealer
or a qualied technician for service.
89

"(Unlock):Press the unlock button to unlock the
driver’s door. If the button is pressed again
within ve seconds, all remaining doors will unlock.
The interior lamps will come on and stay on for
20 seconds or until the ignition is turned on.
If enabled through the DIC, the parking lamps can
be programmed to come on for a set amount of
time when the vehicle is unlocked using the
RKE transmitter. See “EXT (Exterior) LIGHT
DELAY” underDIC Vehicle Personalization on
page 229. If the vehicle has the content
theft-deterrent system, pressing the unlock button
on the RKE transmitter may disarm it. See
Content Theft-Deterrent on page 104.
V(Remote Trunk Release):Press and hold
this button for about one second to release
the trunk lid. The transaxle must be in PARK (P)
for this feature to operate.
L(Panic Alarm):Press this button to activate the
alarm. The ignition must be in OFF or
ACCESSORY for the alarm to work. When the
alarm button is pressed, the headlamps will ash
and the horn will sound repeatedly for two minutes.
The alarm will turn off when the ignition is moved to
RUN or the alarm button is pressed again.
Matching Transmitter(s) to Your
Vehicle
Each RKE transmitter is coded to prevent another
transmitter from unlocking your vehicle. If a
transmitter is lost or stolen, a replacement can be
purchased through your GM dealer. Remember
to bring any additional transmitters so they
can also be re-coded to match the new transmitter.
Once your dealer has coded the new transmitter,
the lost transmitter will not unlock your vehicle.
The vehicle can have a maximum of four
transmitters matched to it.
Battery Replacement
Under normal use, the battery in the RKE
transmitter should last about four years.
The battery is weak if the transmitter will not work
at the normal range in any location. If you have
to get close to your vehicle before the transmitter
works, it is probably time to change the battery.
The KEY FOB BATT LOW message in the
vehicle’s DIC will display if the RKE transmitter
battery is low.
91

B (ACCESSORY):This position lets the radio and
windshield wipers operate while the engine is
off. To use ACCESSORY, turn the key clockwise.
C (RUN):This position is where the key returns
to after the vehicle is started. This position displays
some of the warning and indicator lights.
The battery could be drained if you leave the key
in the ACCESSORY or RUN position with the
engine off. You may not be able to start your
vehicle if the battery is allowed to drain for
an extended period of time.
D (START):This position starts the engine.
A warning chime will sound and the Driver
Information Center (DIC) will display DRIVER’S
DOOR AJAR when the driver’s door is opened if
the ignition is in OFF, ACCESSORY and the key is
in the ignition. SeeDIC Warnings and Messages
on page 208for more information.Key In the Ignition
Never leave your vehicle with the keys inside, as it
is an easy target for joy riders or thieves. If you
leave the key in the ignition and park your vehicle,
a chime will sound, when you open the driver’s
door. Always remember to remove your key from
the ignition and take it with you. This will lock
your ignition and transaxle. Also, always remember
to lock the doors.
The battery could be drained if you leave the key
in the ignition while your vehicle is parked.
You may not be able to start your vehicle after it
has been parked for an extended period of time.
Retained Accessory Power (RAP)
If the vehicle has Retained Accessory Power
(RAP), the power windows and radio will continue
to operate for up to 10 minutes after the ignition
key is turned to OFF unless a door is opened.
110

Starting the Engine
Place the transaxle in the proper gear.
Move your shift lever to PARK (P) or
NEUTRAL (N). Your engine will not start in
any other position — this is a safety feature.
To restart when you are already moving, use
NEUTRAL (N) only.
Notice:Shifting into PARK (P) with the vehicle
moving could damage the transaxle. Shift into
PARK (P) only when your vehicle is stopped.
Starting Procedure
1. With your foot off the accelerator pedal, turn
the ignition key to START. When the engine
starts, let go of the key. The idle speed will go
down as your engine gets warm. Do not
race the engine immediately after starting it.
Operate the engine and transaxle gently
to allow the oil to warm up and lubricate all
moving parts.Your vehicle has a Computer-Controlled
Cranking System. This feature assists in
starting the engine and protects components. If
the ignition key is turned to the START position,
and then released when the engine begins
cranking, the engine will continue cranking for a
few seconds or until the vehicle starts. If the
engine does not start and the key is held in
START for many seconds, cranking will be
stopped after 15 seconds to prevent cranking
motor damage. To prevent gear damage, this
system also prevents cranking if the engine is
already running. Engine cranking can be
stopped by turning the ignition switch to the
ACCESSORY or OFF position.
Notice:Cranking the engine for long periods
of time, by returning the key to the START
position immediately after cranking has ended,
can overheat and damage the cranking
motor, and drain the battery. Wait at least
15 seconds between each try, to allow
the cranking motor to cool down.
111

Shifting Out of Park (P)
Automatic Transaxle Shift Lock
This vehicle has an electronic shift lock release
system. The shift lock release is designed to:
Prevent ignition key removal unless the
shift lever is in PARK (P)
Prevent movement of the shift lever out of
PARK (P) unless the ignition is in a position
other than OFF.
The shift lock is always functional except in
the case of a an uncharged or low voltage
(less than 9 volt) battery.
If your vehicle has an uncharged battery or a
battery with low voltage, try charging or jump
starting the battery. SeeJump Starting on
page 385.
Console Shift
If your console shift cannot be moved out of
PARK (P)
1. Apply and maintain the regular brakes.
2. Turn the ignition to the ACESSORY or RUN
position. SeeIgnition Positions on page 109
for more information.3. Let up on the shift lever and make sure the shift
lever is pushed all the way into PARK (P).
4. Then, move the shift into the desired gear.
If you still cannot move the shift lever from
PARK (P), consult your dealer or a professional
towing service.
Column Shift
If your park lock cable cannot be moved out of
PARK (P)
1. Apply and maintain the regular brakes.
2. Turn the ignition key to the ACCESSORY or
RUN position. SeeIgnition Positions on
page 109for more information.
3. Shift out of the PARK (P) position to the
NEUTRAL (N) position.
4. Move the vehicle to a safe location.
If you still cannot move the shift lever from
PARK (P), consult your dealer or a professional
towing service.
120

Perimeter Lighting
Perimeter lighting provides a period of exterior
vehicle lighting. Perimeter lighting activates when
the key is removed from the ignition or the vehicle is
unlocked using the Remote Keyless Entry (RKE)
transmitter. The amount of time the exterior lamps
will remain on can be programmed using the Driver
Information Center (DIC). See “EXIT LIGHT
DELAY” underDIC Vehicle Personalization on
page 229for additional information.
Overhead Console Reading Lamps
Your vehicle may have reading lamps located
on the overhead console. Press the lens to turn
them on and off.
Rear Assist Handle Reading Lamps
Your vehicle may have reading lamps located
near the rear assist handles. Press the lens to turn
them on and off.
Electric Power Management
The vehicle has Electric Power Management (EPM)
that estimates the battery’s temperature and state
of charge. It then adjusts the voltage for best
performance and extended life of the battery.
When the battery’s state of charge is low, the
voltage is raised slightly to quickly put the charge
back in. When the state of charge is high, the
voltage is lowered slightly to prevent overcharging.
If the vehicle has a voltmeter gage or voltage
display on the Driver Information Center (DIC), you
may see the voltage move up or down. This is
normal. If there is a problem, an alert will be
displayed.
The battery can be discharged at idle if the
electrical loads are very high. This is true for all
vehicles. This is because the generator (alternator)
may not be spinning fast enough at idle to
produce all the power that is needed for very high
electrical loads.
163

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” underRemote Keyless Entry (RKE)
System Operation on page 90.
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.
KEY IN IGNITION
This message displays and a chime sounds
continuously when the driver’s door is open and
the key is in ACCESSORY or 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. SeeFront Turn
Signal and Parking Lamps on page 397.
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.
215

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 350for 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.
If the battery has a very low charge or is dead,
you may not be able to remove the ignition
key from the ignition switch or shift out of
PARK (P). Refer toShifting Out of Park (P)
on page 120.
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 385for tips on working
around a battery without getting hurt.
384